joel16/android_kernel_sony_msm8994_rework
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Merge branches 'amso1100', 'cma', 'cxgb3', 'cxgb4', 'fdr', 'ipath', 'ipoib', 'misc', 'mlx4', 'misc', 'nes', 'qib' and 'xrc' into for-next

Browse Source
This commit is contained in:
Roland Dreier 2011-11-01 09:37:08 -07:00
commit 504255f8d0
83 changed files with 4781 additions and 1024 deletions
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63
drivers/infiniband/core/cm.c
View File

@ -889,6 +889,8 @@ retest:
break;
case IB_CM_ESTABLISHED:
spin_unlock_irq(&cm_id_priv->lock);
if (cm_id_priv->qp_type == IB_QPT_XRC_TGT)
break;
ib_send_cm_dreq(cm_id, NULL, 0);
goto retest;
case IB_CM_DREQ_SENT:
@ -1008,7 +1010,6 @@ static void cm_format_req(struct cm_req_msg *req_msg,
req_msg->service_id = param->service_id;
req_msg->local_ca_guid = cm_id_priv->id.device->node_guid;
cm_req_set_local_qpn(req_msg, cpu_to_be32(param->qp_num));
cm_req_set_resp_res(req_msg, param->responder_resources);
cm_req_set_init_depth(req_msg, param->initiator_depth);
cm_req_set_remote_resp_timeout(req_msg,
param->remote_cm_response_timeout);
@ -1017,12 +1018,16 @@ static void cm_format_req(struct cm_req_msg *req_msg,
cm_req_set_starting_psn(req_msg, cpu_to_be32(param->starting_psn));
cm_req_set_local_resp_timeout(req_msg,
param->local_cm_response_timeout);
cm_req_set_retry_count(req_msg, param->retry_count);
req_msg->pkey = param->primary_path->pkey;
cm_req_set_path_mtu(req_msg, param->primary_path->mtu);
cm_req_set_rnr_retry_count(req_msg, param->rnr_retry_count);
cm_req_set_max_cm_retries(req_msg, param->max_cm_retries);
cm_req_set_srq(req_msg, param->srq);
if (param->qp_type != IB_QPT_XRC_INI) {
cm_req_set_resp_res(req_msg, param->responder_resources);
cm_req_set_retry_count(req_msg, param->retry_count);
cm_req_set_rnr_retry_count(req_msg, param->rnr_retry_count);
cm_req_set_srq(req_msg, param->srq);
}
if (pri_path->hop_limit <= 1) {
req_msg->primary_local_lid = pri_path->slid;
@ -1080,7 +1085,8 @@ static int cm_validate_req_param(struct ib_cm_req_param *param)
if (!param->primary_path)
return -EINVAL;
if (param->qp_type != IB_QPT_RC && param->qp_type != IB_QPT_UC)
if (param->qp_type != IB_QPT_RC && param->qp_type != IB_QPT_UC &&
param->qp_type != IB_QPT_XRC_INI)
return -EINVAL;
if (param->private_data &&
@ -1601,18 +1607,24 @@ static void cm_format_rep(struct cm_rep_msg *rep_msg,
cm_format_mad_hdr(&rep_msg->hdr, CM_REP_ATTR_ID, cm_id_priv->tid);
rep_msg->local_comm_id = cm_id_priv->id.local_id;
rep_msg->remote_comm_id = cm_id_priv->id.remote_id;
cm_rep_set_local_qpn(rep_msg, cpu_to_be32(param->qp_num));
cm_rep_set_starting_psn(rep_msg, cpu_to_be32(param->starting_psn));
rep_msg->resp_resources = param->responder_resources;
rep_msg->initiator_depth = param->initiator_depth;
cm_rep_set_target_ack_delay(rep_msg,
cm_id_priv->av.port->cm_dev->ack_delay);
cm_rep_set_failover(rep_msg, param->failover_accepted);
cm_rep_set_flow_ctrl(rep_msg, param->flow_control);
cm_rep_set_rnr_retry_count(rep_msg, param->rnr_retry_count);
cm_rep_set_srq(rep_msg, param->srq);
rep_msg->local_ca_guid = cm_id_priv->id.device->node_guid;
if (cm_id_priv->qp_type != IB_QPT_XRC_TGT) {
rep_msg->initiator_depth = param->initiator_depth;
cm_rep_set_flow_ctrl(rep_msg, param->flow_control);
cm_rep_set_srq(rep_msg, param->srq);
cm_rep_set_local_qpn(rep_msg, cpu_to_be32(param->qp_num));
} else {
cm_rep_set_srq(rep_msg, 1);
cm_rep_set_local_eecn(rep_msg, cpu_to_be32(param->qp_num));
}
if (param->private_data && param->private_data_len)
memcpy(rep_msg->private_data, param->private_data,
param->private_data_len);
@ -1660,7 +1672,7 @@ int ib_send_cm_rep(struct ib_cm_id *cm_id,
cm_id_priv->initiator_depth = param->initiator_depth;
cm_id_priv->responder_resources = param->responder_resources;
cm_id_priv->rq_psn = cm_rep_get_starting_psn(rep_msg);
cm_id_priv->local_qpn = cm_rep_get_local_qpn(rep_msg);
cm_id_priv->local_qpn = cpu_to_be32(param->qp_num & 0xFFFFFF);
out: spin_unlock_irqrestore(&cm_id_priv->lock, flags);
return ret;
@ -1731,7 +1743,7 @@ error: spin_unlock_irqrestore(&cm_id_priv->lock, flags);
}
EXPORT_SYMBOL(ib_send_cm_rtu);
static void cm_format_rep_event(struct cm_work *work)
static void cm_format_rep_event(struct cm_work *work, enum ib_qp_type qp_type)
{
struct cm_rep_msg *rep_msg;
struct ib_cm_rep_event_param *param;
@ -1740,7 +1752,7 @@ static void cm_format_rep_event(struct cm_work *work)
param = &work->cm_event.param.rep_rcvd;
param->remote_ca_guid = rep_msg->local_ca_guid;
param->remote_qkey = be32_to_cpu(rep_msg->local_qkey);
param->remote_qpn = be32_to_cpu(cm_rep_get_local_qpn(rep_msg));
param->remote_qpn = be32_to_cpu(cm_rep_get_qpn(rep_msg, qp_type));
param->starting_psn = be32_to_cpu(cm_rep_get_starting_psn(rep_msg));
param->responder_resources = rep_msg->initiator_depth;
param->initiator_depth = rep_msg->resp_resources;
@ -1808,7 +1820,7 @@ static int cm_rep_handler(struct cm_work *work)
return -EINVAL;
}
cm_format_rep_event(work);
cm_format_rep_event(work, cm_id_priv->qp_type);
spin_lock_irq(&cm_id_priv->lock);
switch (cm_id_priv->id.state) {
@ -1823,7 +1835,7 @@ static int cm_rep_handler(struct cm_work *work)
cm_id_priv->timewait_info->work.remote_id = rep_msg->local_comm_id;
cm_id_priv->timewait_info->remote_ca_guid = rep_msg->local_ca_guid;
cm_id_priv->timewait_info->remote_qpn = cm_rep_get_local_qpn(rep_msg);
cm_id_priv->timewait_info->remote_qpn = cm_rep_get_qpn(rep_msg, cm_id_priv->qp_type);
spin_lock(&cm.lock);
/* Check for duplicate REP. */
@ -1850,7 +1862,7 @@ static int cm_rep_handler(struct cm_work *work)
cm_id_priv->id.state = IB_CM_REP_RCVD;
cm_id_priv->id.remote_id = rep_msg->local_comm_id;
cm_id_priv->remote_qpn = cm_rep_get_local_qpn(rep_msg);
cm_id_priv->remote_qpn = cm_rep_get_qpn(rep_msg, cm_id_priv->qp_type);
cm_id_priv->initiator_depth = rep_msg->resp_resources;
cm_id_priv->responder_resources = rep_msg->initiator_depth;
cm_id_priv->sq_psn = cm_rep_get_starting_psn(rep_msg);
@ -3492,7 +3504,8 @@ static int cm_init_qp_rtr_attr(struct cm_id_private *cm_id_priv,
qp_attr->path_mtu = cm_id_priv->path_mtu;
qp_attr->dest_qp_num = be32_to_cpu(cm_id_priv->remote_qpn);
qp_attr->rq_psn = be32_to_cpu(cm_id_priv->rq_psn);
if (cm_id_priv->qp_type == IB_QPT_RC) {
if (cm_id_priv->qp_type == IB_QPT_RC ||
cm_id_priv->qp_type == IB_QPT_XRC_TGT) {
*qp_attr_mask |= IB_QP_MAX_DEST_RD_ATOMIC |
IB_QP_MIN_RNR_TIMER;
qp_attr->max_dest_rd_atomic =
@ -3537,15 +3550,21 @@ static int cm_init_qp_rts_attr(struct cm_id_private *cm_id_priv,
if (cm_id_priv->id.lap_state == IB_CM_LAP_UNINIT) {
*qp_attr_mask = IB_QP_STATE | IB_QP_SQ_PSN;
qp_attr->sq_psn = be32_to_cpu(cm_id_priv->sq_psn);
if (cm_id_priv->qp_type == IB_QPT_RC) {
*qp_attr_mask |= IB_QP_TIMEOUT | IB_QP_RETRY_CNT |
IB_QP_RNR_RETRY |
switch (cm_id_priv->qp_type) {
case IB_QPT_RC:
case IB_QPT_XRC_INI:
*qp_attr_mask |= IB_QP_RETRY_CNT | IB_QP_RNR_RETRY |
IB_QP_MAX_QP_RD_ATOMIC;
qp_attr->timeout = cm_id_priv->av.timeout;
qp_attr->retry_cnt = cm_id_priv->retry_count;
qp_attr->rnr_retry = cm_id_priv->rnr_retry_count;
qp_attr->max_rd_atomic =
cm_id_priv->initiator_depth;
qp_attr->max_rd_atomic = cm_id_priv->initiator_depth;
/* fall through */
case IB_QPT_XRC_TGT:
*qp_attr_mask |= IB_QP_TIMEOUT;
qp_attr->timeout = cm_id_priv->av.timeout;
break;
default:
break;
}
if (cm_id_priv->alt_av.ah_attr.dlid) {
*qp_attr_mask |= IB_QP_PATH_MIG_STATE;

32
drivers/infiniband/core/cm_msgs.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2004 Intel Corporation. All rights reserved.
* Copyright (c) 2004, 2011 Intel Corporation. All rights reserved.
* Copyright (c) 2004 Topspin Corporation. All rights reserved.
* Copyright (c) 2004 Voltaire Corporation. All rights reserved.
*
@ -86,7 +86,7 @@ struct cm_req_msg {
__be16 pkey;
/* path MTU:4, RDC exists:1, RNR retry count:3. */
u8 offset50;
/* max CM Retries:4, SRQ:1, rsvd:3 */
/* max CM Retries:4, SRQ:1, extended transport type:3 */
u8 offset51;
__be16 primary_local_lid;
@ -175,6 +175,11 @@ static inline enum ib_qp_type cm_req_get_qp_type(struct cm_req_msg *req_msg)
switch(transport_type) {
case 0: return IB_QPT_RC;
case 1: return IB_QPT_UC;
case 3:
switch (req_msg->offset51 & 0x7) {
case 1: return IB_QPT_XRC_TGT;
default: return 0;
}
default: return 0;
}
}
@ -188,6 +193,12 @@ static inline void cm_req_set_qp_type(struct cm_req_msg *req_msg,
req_msg->offset40) &
0xFFFFFFF9) | 0x2);
break;
case IB_QPT_XRC_INI:
req_msg->offset40 = cpu_to_be32((be32_to_cpu(
req_msg->offset40) &
0xFFFFFFF9) | 0x6);
req_msg->offset51 = (req_msg->offset51 & 0xF8) | 1;
break;
default:
req_msg->offset40 = cpu_to_be32(be32_to_cpu(
req_msg->offset40) &
@ -527,6 +538,23 @@ static inline void cm_rep_set_local_qpn(struct cm_rep_msg *rep_msg, __be32 qpn)
(be32_to_cpu(rep_msg->offset12) & 0x000000FF));
}
static inline __be32 cm_rep_get_local_eecn(struct cm_rep_msg *rep_msg)
{
return cpu_to_be32(be32_to_cpu(rep_msg->offset16) >> 8);
}
static inline void cm_rep_set_local_eecn(struct cm_rep_msg *rep_msg, __be32 eecn)
{
rep_msg->offset16 = cpu_to_be32((be32_to_cpu(eecn) << 8) |
(be32_to_cpu(rep_msg->offset16) & 0x000000FF));
}
static inline __be32 cm_rep_get_qpn(struct cm_rep_msg *rep_msg, enum ib_qp_type qp_type)
{
return (qp_type == IB_QPT_XRC_INI) ?
cm_rep_get_local_eecn(rep_msg) : cm_rep_get_local_qpn(rep_msg);
}
static inline __be32 cm_rep_get_starting_psn(struct cm_rep_msg *rep_msg)
{
return cpu_to_be32(be32_to_cpu(rep_msg->offset20) >> 8);

67
drivers/infiniband/core/cma.c
View File

@ -81,6 +81,7 @@ static DEFINE_IDR(sdp_ps);
static DEFINE_IDR(tcp_ps);
static DEFINE_IDR(udp_ps);
static DEFINE_IDR(ipoib_ps);
static DEFINE_IDR(ib_ps);
struct cma_device {
struct list_head list;
@ -1179,6 +1180,15 @@ static void cma_set_req_event_data(struct rdma_cm_event *event,
event->param.conn.qp_num = req_data->remote_qpn;
}
static int cma_check_req_qp_type(struct rdma_cm_id *id, struct ib_cm_event *ib_event)
{
return (((ib_event->event == IB_CM_REQ_RECEIVED) ||
(ib_event->param.req_rcvd.qp_type == id->qp_type)) ||
((ib_event->event == IB_CM_SIDR_REQ_RECEIVED) &&
(id->qp_type == IB_QPT_UD)) ||
(!id->qp_type));
}
static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
{
struct rdma_id_private *listen_id, *conn_id;
@ -1186,13 +1196,16 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
int offset, ret;
listen_id = cm_id->context;
if (!cma_check_req_qp_type(&listen_id->id, ib_event))
return -EINVAL;
if (cma_disable_callback(listen_id, RDMA_CM_LISTEN))
return -ECONNABORTED;
memset(&event, 0, sizeof event);
offset = cma_user_data_offset(listen_id->id.ps);
event.event = RDMA_CM_EVENT_CONNECT_REQUEST;
if (listen_id->id.qp_type == IB_QPT_UD) {
if (ib_event->event == IB_CM_SIDR_REQ_RECEIVED) {
conn_id = cma_new_udp_id(&listen_id->id, ib_event);
event.param.ud.private_data = ib_event->private_data + offset;
event.param.ud.private_data_len =
@ -1328,6 +1341,8 @@ static int cma_iw_handler(struct iw_cm_id *iw_id, struct iw_cm_event *iw_event)
switch (iw_event->status) {
case 0:
event.event = RDMA_CM_EVENT_ESTABLISHED;
event.param.conn.initiator_depth = iw_event->ird;
event.param.conn.responder_resources = iw_event->ord;
break;
case -ECONNRESET:
case -ECONNREFUSED:
@ -1343,6 +1358,8 @@ static int cma_iw_handler(struct iw_cm_id *iw_id, struct iw_cm_event *iw_event)
break;
case IW_CM_EVENT_ESTABLISHED:
event.event = RDMA_CM_EVENT_ESTABLISHED;
event.param.conn.initiator_depth = iw_event->ird;
event.param.conn.responder_resources = iw_event->ord;
break;
default:
BUG_ON(1);
@ -1433,8 +1450,8 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
event.event = RDMA_CM_EVENT_CONNECT_REQUEST;
event.param.conn.private_data = iw_event->private_data;
event.param.conn.private_data_len = iw_event->private_data_len;
event.param.conn.initiator_depth = attr.max_qp_init_rd_atom;
event.param.conn.responder_resources = attr.max_qp_rd_atom;
event.param.conn.initiator_depth = iw_event->ird;
event.param.conn.responder_resources = iw_event->ord;
/*
* Protect against the user destroying conn_id from another thread
@ -2234,6 +2251,9 @@ static int cma_get_port(struct rdma_id_private *id_priv)
case RDMA_PS_IPOIB:
ps = &ipoib_ps;
break;
case RDMA_PS_IB:
ps = &ib_ps;
break;
default:
return -EPROTONOSUPPORT;
}
@ -2569,7 +2589,7 @@ static int cma_connect_ib(struct rdma_id_private *id_priv,
req.service_id = cma_get_service_id(id_priv->id.ps,
(struct sockaddr *) &route->addr.dst_addr);
req.qp_num = id_priv->qp_num;
req.qp_type = IB_QPT_RC;
req.qp_type = id_priv->id.qp_type;
req.starting_psn = id_priv->seq_num;
req.responder_resources = conn_param->responder_resources;
req.initiator_depth = conn_param->initiator_depth;
@ -2616,14 +2636,16 @@ static int cma_connect_iw(struct rdma_id_private *id_priv,
if (ret)
goto out;
iw_param.ord = conn_param->initiator_depth;
iw_param.ird = conn_param->responder_resources;
iw_param.private_data = conn_param->private_data;
iw_param.private_data_len = conn_param->private_data_len;
if (id_priv->id.qp)
if (conn_param) {
iw_param.ord = conn_param->initiator_depth;
iw_param.ird = conn_param->responder_resources;
iw_param.private_data = conn_param->private_data;
iw_param.private_data_len = conn_param->private_data_len;
iw_param.qpn = id_priv->id.qp ? id_priv->qp_num : conn_param->qp_num;
} else {
memset(&iw_param, 0, sizeof iw_param);
iw_param.qpn = id_priv->qp_num;
else
iw_param.qpn = conn_param->qp_num;
}
ret = iw_cm_connect(cm_id, &iw_param);
out:
if (ret) {
@ -2765,14 +2787,20 @@ int rdma_accept(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
switch (rdma_node_get_transport(id->device->node_type)) {
case RDMA_TRANSPORT_IB:
if (id->qp_type == IB_QPT_UD)
ret = cma_send_sidr_rep(id_priv, IB_SIDR_SUCCESS,
conn_param->private_data,
conn_param->private_data_len);
else if (conn_param)
ret = cma_accept_ib(id_priv, conn_param);
else
ret = cma_rep_recv(id_priv);
if (id->qp_type == IB_QPT_UD) {
if (conn_param)
ret = cma_send_sidr_rep(id_priv, IB_SIDR_SUCCESS,
conn_param->private_data,
conn_param->private_data_len);
else
ret = cma_send_sidr_rep(id_priv, IB_SIDR_SUCCESS,
NULL, 0);
} else {
if (conn_param)
ret = cma_accept_ib(id_priv, conn_param);
else
ret = cma_rep_recv(id_priv);
}
break;
case RDMA_TRANSPORT_IWARP:
ret = cma_accept_iw(id_priv, conn_param);
@ -3460,6 +3488,7 @@ static void __exit cma_cleanup(void)
idr_destroy(&tcp_ps);
idr_destroy(&udp_ps);
idr_destroy(&ipoib_ps);
idr_destroy(&ib_ps);
}
module_init(cma_init);

3
drivers/infiniband/core/mad.c
View File

@ -1596,6 +1596,9 @@ find_mad_agent(struct ib_mad_port_private *port_priv,
mad->mad_hdr.class_version].class;
if (!class)
goto out;
if (convert_mgmt_class(mad->mad_hdr.mgmt_class) >=
IB_MGMT_MAX_METHODS)
goto out;
method = class->method_table[convert_mgmt_class(
mad->mad_hdr.mgmt_class)];
if (method)

26
drivers/infiniband/core/sysfs.c
View File

@ -185,17 +185,35 @@ static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused,
if (ret)
return ret;
rate = (25 * attr.active_speed) / 10;
switch (attr.active_speed) {
case 2: speed = " DDR"; break;
case 4: speed = " QDR"; break;
case 2:
speed = " DDR";
break;
case 4:
speed = " QDR";
break;
case 8:
speed = " FDR10";
rate = 10;
break;
case 16:
speed = " FDR";
rate = 14;
break;
case 32:
speed = " EDR";
rate = 25;
break;
}
rate = 25 * ib_width_enum_to_int(attr.active_width) * attr.active_speed;
rate *= ib_width_enum_to_int(attr.active_width);
if (rate < 0)
return -EINVAL;
return sprintf(buf, "%d%s Gb/sec (%dX%s)\n",
rate / 10, rate % 10 ? ".5" : "",
rate, (attr.active_speed == 1) ? ".5" : "",
ib_width_enum_to_int(attr.active_width), speed);
}

2
drivers/infiniband/core/ucm.c
View File

@ -1122,7 +1122,7 @@ static ssize_t ib_ucm_write(struct file *filp, const char __user *buf,
if (copy_from_user(&hdr, buf, sizeof(hdr)))
return -EFAULT;
if (hdr.cmd < 0 || hdr.cmd >= ARRAY_SIZE(ucm_cmd_table))
if (hdr.cmd >= ARRAY_SIZE(ucm_cmd_table))
return -EINVAL;
if (hdr.in + sizeof(hdr) > len)

7
drivers/infiniband/core/ucma.c
View File

@ -276,7 +276,7 @@ static int ucma_event_handler(struct rdma_cm_id *cm_id,
ucma_set_event_context(ctx, event, uevent);
uevent->resp.event = event->event;
uevent->resp.status = event->status;
if (cm_id->ps == RDMA_PS_UDP || cm_id->ps == RDMA_PS_IPOIB)
if (cm_id->qp_type == IB_QPT_UD)
ucma_copy_ud_event(&uevent->resp.param.ud, &event->param.ud);
else
ucma_copy_conn_event(&uevent->resp.param.conn,
@ -377,6 +377,9 @@ static int ucma_get_qp_type(struct rdma_ucm_create_id *cmd, enum ib_qp_type *qp_
case RDMA_PS_IPOIB:
*qp_type = IB_QPT_UD;
return 0;
case RDMA_PS_IB:
*qp_type = cmd->qp_type;
return 0;
default:
return -EINVAL;
}
@ -1270,7 +1273,7 @@ static ssize_t ucma_write(struct file *filp, const char __user *buf,
if (copy_from_user(&hdr, buf, sizeof(hdr)))
return -EFAULT;
if (hdr.cmd < 0 || hdr.cmd >= ARRAY_SIZE(ucma_cmd_table))
if (hdr.cmd >= ARRAY_SIZE(ucma_cmd_table))
return -EINVAL;
if (hdr.in + sizeof(hdr) > len)

5
drivers/infiniband/core/user_mad.c
View File

@ -458,8 +458,7 @@ static ssize_t ib_umad_write(struct file *filp, const char __user *buf,
goto err;
}
if (packet->mad.hdr.id < 0 ||
packet->mad.hdr.id >= IB_UMAD_MAX_AGENTS) {
if (packet->mad.hdr.id >= IB_UMAD_MAX_AGENTS) {
ret = -EINVAL;
goto err;
}
@ -703,7 +702,7 @@ static int ib_umad_unreg_agent(struct ib_umad_file *file, u32 __user *arg)
mutex_lock(&file->port->file_mutex);
mutex_lock(&file->mutex);
if (id < 0 || id >= IB_UMAD_MAX_AGENTS || !__get_agent(file, id)) {
if (id >= IB_UMAD_MAX_AGENTS || !__get_agent(file, id)) {
ret = -EINVAL;
goto out;
}

18
drivers/infiniband/core/uverbs.h
View File

@ -76,6 +76,8 @@ struct ib_uverbs_device {
struct ib_device *ib_dev;
int devnum;
struct cdev cdev;
struct rb_root xrcd_tree;
struct mutex xrcd_tree_mutex;
};
struct ib_uverbs_event_file {
@ -120,6 +122,16 @@ struct ib_uevent_object {
u32 events_reported;
};
struct ib_uxrcd_object {
struct ib_uobject uobject;
atomic_t refcnt;
};
struct ib_usrq_object {
struct ib_uevent_object uevent;
struct ib_uxrcd_object *uxrcd;
};
struct ib_uqp_object {
struct ib_uevent_object uevent;
struct list_head mcast_list;
@ -142,6 +154,7 @@ extern struct idr ib_uverbs_ah_idr;
extern struct idr ib_uverbs_cq_idr;
extern struct idr ib_uverbs_qp_idr;
extern struct idr ib_uverbs_srq_idr;
extern struct idr ib_uverbs_xrcd_idr;
void idr_remove_uobj(struct idr *idp, struct ib_uobject *uobj);
@ -161,6 +174,7 @@ void ib_uverbs_qp_event_handler(struct ib_event *event, void *context_ptr);
void ib_uverbs_srq_event_handler(struct ib_event *event, void *context_ptr);
void ib_uverbs_event_handler(struct ib_event_handler *handler,
struct ib_event *event);
void ib_uverbs_dealloc_xrcd(struct ib_uverbs_device *dev, struct ib_xrcd *xrcd);
#define IB_UVERBS_DECLARE_CMD(name) \
ssize_t ib_uverbs_##name(struct ib_uverbs_file *file, \
@ -181,6 +195,7 @@ IB_UVERBS_DECLARE_CMD(poll_cq);
IB_UVERBS_DECLARE_CMD(req_notify_cq);
IB_UVERBS_DECLARE_CMD(destroy_cq);
IB_UVERBS_DECLARE_CMD(create_qp);
IB_UVERBS_DECLARE_CMD(open_qp);
IB_UVERBS_DECLARE_CMD(query_qp);
IB_UVERBS_DECLARE_CMD(modify_qp);
IB_UVERBS_DECLARE_CMD(destroy_qp);
@ -195,5 +210,8 @@ IB_UVERBS_DECLARE_CMD(create_srq);
IB_UVERBS_DECLARE_CMD(modify_srq);
IB_UVERBS_DECLARE_CMD(query_srq);
IB_UVERBS_DECLARE_CMD(destroy_srq);
IB_UVERBS_DECLARE_CMD(create_xsrq);
IB_UVERBS_DECLARE_CMD(open_xrcd);
IB_UVERBS_DECLARE_CMD(close_xrcd);
#endif /* UVERBS_H */

781
drivers/infiniband/core/uverbs_cmd.c
View File

@ -47,6 +47,7 @@ static struct lock_class_key cq_lock_key;
static struct lock_class_key qp_lock_key;
static struct lock_class_key ah_lock_key;
static struct lock_class_key srq_lock_key;
static struct lock_class_key xrcd_lock_key;
#define INIT_UDATA(udata, ibuf, obuf, ilen, olen) \
do { \
@ -255,6 +256,18 @@ static void put_srq_read(struct ib_srq *srq)
put_uobj_read(srq->uobject);
}
static struct ib_xrcd *idr_read_xrcd(int xrcd_handle, struct ib_ucontext *context,
struct ib_uobject **uobj)
{
*uobj = idr_read_uobj(&ib_uverbs_xrcd_idr, xrcd_handle, context, 0);
return *uobj ? (*uobj)->object : NULL;
}
static void put_xrcd_read(struct ib_uobject *uobj)
{
put_uobj_read(uobj);
}
ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file,
const char __user *buf,
int in_len, int out_len)
@ -298,6 +311,7 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file,
INIT_LIST_HEAD(&ucontext->qp_list);
INIT_LIST_HEAD(&ucontext->srq_list);
INIT_LIST_HEAD(&ucontext->ah_list);
INIT_LIST_HEAD(&ucontext->xrcd_list);
ucontext->closing = 0;
resp.num_comp_vectors = file->device->num_comp_vectors;
@ -579,6 +593,310 @@ ssize_t ib_uverbs_dealloc_pd(struct ib_uverbs_file *file,
return in_len;
}
struct xrcd_table_entry {
struct rb_node node;
struct ib_xrcd *xrcd;
struct inode *inode;
};
static int xrcd_table_insert(struct ib_uverbs_device *dev,
struct inode *inode,
struct ib_xrcd *xrcd)
{
struct xrcd_table_entry *entry, *scan;
struct rb_node **p = &dev->xrcd_tree.rb_node;
struct rb_node *parent = NULL;
entry = kmalloc(sizeof *entry, GFP_KERNEL);
if (!entry)
return -ENOMEM;
entry->xrcd = xrcd;
entry->inode = inode;
while (*p) {
parent = *p;
scan = rb_entry(parent, struct xrcd_table_entry, node);
if (inode < scan->inode) {
p = &(*p)->rb_left;
} else if (inode > scan->inode) {
p = &(*p)->rb_right;
} else {
kfree(entry);
return -EEXIST;
}
}
rb_link_node(&entry->node, parent, p);
rb_insert_color(&entry->node, &dev->xrcd_tree);
igrab(inode);
return 0;
}
static struct xrcd_table_entry *xrcd_table_search(struct ib_uverbs_device *dev,
struct inode *inode)
{
struct xrcd_table_entry *entry;
struct rb_node *p = dev->xrcd_tree.rb_node;
while (p) {
entry = rb_entry(p, struct xrcd_table_entry, node);
if (inode < entry->inode)
p = p->rb_left;
else if (inode > entry->inode)
p = p->rb_right;
else
return entry;
}
return NULL;
}
static struct ib_xrcd *find_xrcd(struct ib_uverbs_device *dev, struct inode *inode)
{
struct xrcd_table_entry *entry;
entry = xrcd_table_search(dev, inode);
if (!entry)
return NULL;
return entry->xrcd;
}
static void xrcd_table_delete(struct ib_uverbs_device *dev,
struct inode *inode)
{
struct xrcd_table_entry *entry;
entry = xrcd_table_search(dev, inode);
if (entry) {
iput(inode);
rb_erase(&entry->node, &dev->xrcd_tree);
kfree(entry);
}
}
ssize_t ib_uverbs_open_xrcd(struct ib_uverbs_file *file,
const char __user *buf, int in_len,
int out_len)
{
struct ib_uverbs_open_xrcd cmd;
struct ib_uverbs_open_xrcd_resp resp;
struct ib_udata udata;
struct ib_uxrcd_object *obj;
struct ib_xrcd *xrcd = NULL;
struct file *f = NULL;
struct inode *inode = NULL;
int ret = 0;
int new_xrcd = 0;
if (out_len < sizeof resp)
return -ENOSPC;
if (copy_from_user(&cmd, buf, sizeof cmd))
return -EFAULT;
INIT_UDATA(&udata, buf + sizeof cmd,
(unsigned long) cmd.response + sizeof resp,
in_len - sizeof cmd, out_len - sizeof resp);
mutex_lock(&file->device->xrcd_tree_mutex);
if (cmd.fd != -1) {
/* search for file descriptor */
f = fget(cmd.fd);
if (!f) {
ret = -EBADF;
goto err_tree_mutex_unlock;
}
inode = f->f_dentry->d_inode;
if (!inode) {
ret = -EBADF;
goto err_tree_mutex_unlock;
}
xrcd = find_xrcd(file->device, inode);
if (!xrcd && !(cmd.oflags & O_CREAT)) {
/* no file descriptor. Need CREATE flag */
ret = -EAGAIN;
goto err_tree_mutex_unlock;
}
if (xrcd && cmd.oflags & O_EXCL) {
ret = -EINVAL;
goto err_tree_mutex_unlock;
}
}
obj = kmalloc(sizeof *obj, GFP_KERNEL);
if (!obj) {
ret = -ENOMEM;
goto err_tree_mutex_unlock;
}
init_uobj(&obj->uobject, 0, file->ucontext, &xrcd_lock_key);
down_write(&obj->uobject.mutex);
if (!xrcd) {
xrcd = file->device->ib_dev->alloc_xrcd(file->device->ib_dev,
file->ucontext, &udata);
if (IS_ERR(xrcd)) {
ret = PTR_ERR(xrcd);
goto err;
}
xrcd->inode = inode;
xrcd->device = file->device->ib_dev;
atomic_set(&xrcd->usecnt, 0);
mutex_init(&xrcd->tgt_qp_mutex);
INIT_LIST_HEAD(&xrcd->tgt_qp_list);
new_xrcd = 1;
}
atomic_set(&obj->refcnt, 0);
obj->uobject.object = xrcd;
ret = idr_add_uobj(&ib_uverbs_xrcd_idr, &obj->uobject);
if (ret)
goto err_idr;
memset(&resp, 0, sizeof resp);
resp.xrcd_handle = obj->uobject.id;
if (inode) {
if (new_xrcd) {
/* create new inode/xrcd table entry */
ret = xrcd_table_insert(file->device, inode, xrcd);
if (ret)
goto err_insert_xrcd;
}
atomic_inc(&xrcd->usecnt);
}
if (copy_to_user((void __user *) (unsigned long) cmd.response,
&resp, sizeof resp)) {
ret = -EFAULT;
goto err_copy;
}
if (f)
fput(f);
mutex_lock(&file->mutex);
list_add_tail(&obj->uobject.list, &file->ucontext->xrcd_list);
mutex_unlock(&file->mutex);
obj->uobject.live = 1;
up_write(&obj->uobject.mutex);
mutex_unlock(&file->device->xrcd_tree_mutex);
return in_len;
err_copy:
if (inode) {
if (new_xrcd)
xrcd_table_delete(file->device, inode);
atomic_dec(&xrcd->usecnt);
}
err_insert_xrcd:
idr_remove_uobj(&ib_uverbs_xrcd_idr, &obj->uobject);
err_idr:
ib_dealloc_xrcd(xrcd);
err:
put_uobj_write(&obj->uobject);
err_tree_mutex_unlock:
if (f)
fput(f);
mutex_unlock(&file->device->xrcd_tree_mutex);
return ret;
}
ssize_t ib_uverbs_close_xrcd(struct ib_uverbs_file *file,
const char __user *buf, int in_len,
int out_len)
{
struct ib_uverbs_close_xrcd cmd;
struct ib_uobject *uobj;
struct ib_xrcd *xrcd = NULL;
struct inode *inode = NULL;
struct ib_uxrcd_object *obj;
int live;
int ret = 0;
if (copy_from_user(&cmd, buf, sizeof cmd))
return -EFAULT;
mutex_lock(&file->device->xrcd_tree_mutex);
uobj = idr_write_uobj(&ib_uverbs_xrcd_idr, cmd.xrcd_handle, file->ucontext);
if (!uobj) {
ret = -EINVAL;
goto out;
}
xrcd = uobj->object;
inode = xrcd->inode;
obj = container_of(uobj, struct ib_uxrcd_object, uobject);
if (atomic_read(&obj->refcnt)) {
put_uobj_write(uobj);
ret = -EBUSY;
goto out;
}
if (!inode || atomic_dec_and_test(&xrcd->usecnt)) {
ret = ib_dealloc_xrcd(uobj->object);
if (!ret)
uobj->live = 0;
}
live = uobj->live;
if (inode && ret)
atomic_inc(&xrcd->usecnt);
put_uobj_write(uobj);
if (ret)
goto out;
if (inode && !live)
xrcd_table_delete(file->device, inode);
idr_remove_uobj(&ib_uverbs_xrcd_idr, uobj);
mutex_lock(&file->mutex);
list_del(&uobj->list);
mutex_unlock(&file->mutex);
put_uobj(uobj);
ret = in_len;
out:
mutex_unlock(&file->device->xrcd_tree_mutex);
return ret;
}
void ib_uverbs_dealloc_xrcd(struct ib_uverbs_device *dev,
struct ib_xrcd *xrcd)
{
struct inode *inode;
inode = xrcd->inode;
if (inode && !atomic_dec_and_test(&xrcd->usecnt))
return;
ib_dealloc_xrcd(xrcd);
if (inode)
xrcd_table_delete(dev, inode);
}
ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file,
const char __user *buf, int in_len,
int out_len)
@ -1052,9 +1370,12 @@ ssize_t ib_uverbs_create_qp(struct ib_uverbs_file *file,
struct ib_uverbs_create_qp_resp resp;
struct ib_udata udata;
struct ib_uqp_object *obj;
struct ib_pd *pd;
struct ib_cq *scq, *rcq;
struct ib_srq *srq;
struct ib_device *device;
struct ib_pd *pd = NULL;
struct ib_xrcd *xrcd = NULL;
struct ib_uobject *uninitialized_var(xrcd_uobj);
struct ib_cq *scq = NULL, *rcq = NULL;
struct ib_srq *srq = NULL;
struct ib_qp *qp;
struct ib_qp_init_attr attr;
int ret;
@ -1076,15 +1397,39 @@ ssize_t ib_uverbs_create_qp(struct ib_uverbs_file *file,
init_uobj(&obj->uevent.uobject, cmd.user_handle, file->ucontext, &qp_lock_key);
down_write(&obj->uevent.uobject.mutex);
srq = cmd.is_srq ? idr_read_srq(cmd.srq_handle, file->ucontext) : NULL;
pd = idr_read_pd(cmd.pd_handle, file->ucontext);
scq = idr_read_cq(cmd.send_cq_handle, file->ucontext, 0);
rcq = cmd.recv_cq_handle == cmd.send_cq_handle ?
scq : idr_read_cq(cmd.recv_cq_handle, file->ucontext, 1);
if (cmd.qp_type == IB_QPT_XRC_TGT) {
xrcd = idr_read_xrcd(cmd.pd_handle, file->ucontext, &xrcd_uobj);
if (!xrcd) {
ret = -EINVAL;
goto err_put;
}
device = xrcd->device;
} else {
pd = idr_read_pd(cmd.pd_handle, file->ucontext);
scq = idr_read_cq(cmd.send_cq_handle, file->ucontext, 0);
if (!pd || !scq) {
ret = -EINVAL;
goto err_put;
}
if (!pd || !scq || !rcq || (cmd.is_srq && !srq)) {
ret = -EINVAL;
goto err_put;
if (cmd.qp_type == IB_QPT_XRC_INI) {
cmd.max_recv_wr = cmd.max_recv_sge = 0;
} else {
if (cmd.is_srq) {
srq = idr_read_srq(cmd.srq_handle, file->ucontext);
if (!srq || srq->srq_type != IB_SRQT_BASIC) {
ret = -EINVAL;
goto err_put;
}
}
rcq = (cmd.recv_cq_handle == cmd.send_cq_handle) ?
scq : idr_read_cq(cmd.recv_cq_handle, file->ucontext, 1);
if (!rcq) {
ret = -EINVAL;
goto err_put;
}
}
device = pd->device;
}
attr.event_handler = ib_uverbs_qp_event_handler;
@ -1092,6 +1437,7 @@ ssize_t ib_uverbs_create_qp(struct ib_uverbs_file *file,
attr.send_cq = scq;
attr.recv_cq = rcq;
attr.srq = srq;
attr.xrcd = xrcd;
attr.sq_sig_type = cmd.sq_sig_all ? IB_SIGNAL_ALL_WR : IB_SIGNAL_REQ_WR;
attr.qp_type = cmd.qp_type;
attr.create_flags = 0;
@ -1106,26 +1452,34 @@ ssize_t ib_uverbs_create_qp(struct ib_uverbs_file *file,
INIT_LIST_HEAD(&obj->uevent.event_list);
INIT_LIST_HEAD(&obj->mcast_list);
qp = pd->device->create_qp(pd, &attr, &udata);
if (cmd.qp_type == IB_QPT_XRC_TGT)
qp = ib_create_qp(pd, &attr);
else
qp = device->create_qp(pd, &attr, &udata);
if (IS_ERR(qp)) {
ret = PTR_ERR(qp);
goto err_put;
}
qp->device = pd->device;
qp->pd = pd;
qp->send_cq = attr.send_cq;
qp->recv_cq = attr.recv_cq;
qp->srq = attr.srq;
qp->uobject = &obj->uevent.uobject;
qp->event_handler = attr.event_handler;
qp->qp_context = attr.qp_context;
qp->qp_type = attr.qp_type;
atomic_inc(&pd->usecnt);
atomic_inc(&attr.send_cq->usecnt);
atomic_inc(&attr.recv_cq->usecnt);
if (attr.srq)
atomic_inc(&attr.srq->usecnt);
if (cmd.qp_type != IB_QPT_XRC_TGT) {
qp->real_qp = qp;
qp->device = device;
qp->pd = pd;
qp->send_cq = attr.send_cq;
qp->recv_cq = attr.recv_cq;
qp->srq = attr.srq;
qp->event_handler = attr.event_handler;
qp->qp_context = attr.qp_context;
qp->qp_type = attr.qp_type;
atomic_inc(&pd->usecnt);
atomic_inc(&attr.send_cq->usecnt);
if (attr.recv_cq)
atomic_inc(&attr.recv_cq->usecnt);
if (attr.srq)
atomic_inc(&attr.srq->usecnt);
}
qp->uobject = &obj->uevent.uobject;
obj->uevent.uobject.object = qp;
ret = idr_add_uobj(&ib_uverbs_qp_idr, &obj->uevent.uobject);
@ -1147,9 +1501,13 @@ ssize_t ib_uverbs_create_qp(struct ib_uverbs_file *file,
goto err_copy;
}
put_pd_read(pd);
put_cq_read(scq);
if (rcq != scq)
if (xrcd)
put_xrcd_read(xrcd_uobj);
if (pd)
put_pd_read(pd);
if (scq)
put_cq_read(scq);
if (rcq && rcq != scq)
put_cq_read(rcq);
if (srq)
put_srq_read(srq);
@ -1171,6 +1529,8 @@ err_destroy:
ib_destroy_qp(qp);
err_put:
if (xrcd)
put_xrcd_read(xrcd_uobj);
if (pd)
put_pd_read(pd);
if (scq)
@ -1184,6 +1544,98 @@ err_put:
return ret;
}
ssize_t ib_uverbs_open_qp(struct ib_uverbs_file *file,
const char __user *buf, int in_len, int out_len)
{
struct ib_uverbs_open_qp cmd;
struct ib_uverbs_create_qp_resp resp;
struct ib_udata udata;
struct ib_uqp_object *obj;
struct ib_xrcd *xrcd;
struct ib_uobject *uninitialized_var(xrcd_uobj);
struct ib_qp *qp;
struct ib_qp_open_attr attr;
int ret;
if (out_len < sizeof resp)
return -ENOSPC;
if (copy_from_user(&cmd, buf, sizeof cmd))
return -EFAULT;
INIT_UDATA(&udata, buf + sizeof cmd,
(unsigned long) cmd.response + sizeof resp,
in_len - sizeof cmd, out_len - sizeof resp);
obj = kmalloc(sizeof *obj, GFP_KERNEL);
if (!obj)
return -ENOMEM;
init_uobj(&obj->uevent.uobject, cmd.user_handle, file->ucontext, &qp_lock_key);
down_write(&obj->uevent.uobject.mutex);
xrcd = idr_read_xrcd(cmd.pd_handle, file->ucontext, &xrcd_uobj);
if (!xrcd) {
ret = -EINVAL;
goto err_put;
}
attr.event_handler = ib_uverbs_qp_event_handler;
attr.qp_context = file;
attr.qp_num = cmd.qpn;
attr.qp_type = cmd.qp_type;
obj->uevent.events_reported = 0;
INIT_LIST_HEAD(&obj->uevent.event_list);
INIT_LIST_HEAD(&obj->mcast_list);
qp = ib_open_qp(xrcd, &attr);
if (IS_ERR(qp)) {
ret = PTR_ERR(qp);
goto err_put;
}
qp->uobject = &obj->uevent.uobject;
obj->uevent.uobject.object = qp;
ret = idr_add_uobj(&ib_uverbs_qp_idr, &obj->uevent.uobject);
if (ret)
goto err_destroy;
memset(&resp, 0, sizeof resp);
resp.qpn = qp->qp_num;
resp.qp_handle = obj->uevent.uobject.id;
if (copy_to_user((void __user *) (unsigned long) cmd.response,
&resp, sizeof resp)) {
ret = -EFAULT;
goto err_remove;
}
put_xrcd_read(xrcd_uobj);
mutex_lock(&file->mutex);
list_add_tail(&obj->uevent.uobject.list, &file->ucontext->qp_list);
mutex_unlock(&file->mutex);
obj->uevent.uobject.live = 1;
up_write(&obj->uevent.uobject.mutex);
return in_len;
err_remove:
idr_remove_uobj(&ib_uverbs_qp_idr, &obj->uevent.uobject);
err_destroy:
ib_destroy_qp(qp);
err_put:
put_xrcd_read(xrcd_uobj);
put_uobj_write(&obj->uevent.uobject);
return ret;
}
ssize_t ib_uverbs_query_qp(struct ib_uverbs_file *file,
const char __user *buf, int in_len,
int out_len)
@ -1284,6 +1736,20 @@ out:
return ret ? ret : in_len;
}
/* Remove ignored fields set in the attribute mask */
static int modify_qp_mask(enum ib_qp_type qp_type, int mask)
{
switch (qp_type) {
case IB_QPT_XRC_INI:
return mask & ~(IB_QP_MAX_DEST_RD_ATOMIC | IB_QP_MIN_RNR_TIMER);
case IB_QPT_XRC_TGT:
return mask & ~(IB_QP_MAX_QP_RD_ATOMIC | IB_QP_RETRY_CNT |
IB_QP_RNR_RETRY);
default:
return mask;
}
}
ssize_t ib_uverbs_modify_qp(struct ib_uverbs_file *file,
const char __user *buf, int in_len,
int out_len)
@ -1356,7 +1822,12 @@ ssize_t ib_uverbs_modify_qp(struct ib_uverbs_file *file,
attr->alt_ah_attr.ah_flags = cmd.alt_dest.is_global ? IB_AH_GRH : 0;
attr->alt_ah_attr.port_num = cmd.alt_dest.port_num;
ret = qp->device->modify_qp(qp, attr, cmd.attr_mask, &udata);
if (qp->real_qp == qp) {
ret = qp->device->modify_qp(qp, attr,
modify_qp_mask(qp->qp_type, cmd.attr_mask), &udata);
} else {
ret = ib_modify_qp(qp, attr, modify_qp_mask(qp->qp_type, cmd.attr_mask));
}
put_qp_read(qp);
@ -1553,7 +2024,7 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file,
}
resp.bad_wr = 0;
ret = qp->device->post_send(qp, wr, &bad_wr);
ret = qp->device->post_send(qp->real_qp, wr, &bad_wr);
if (ret)
for (next = wr; next; next = next->next) {
++resp.bad_wr;
@ -1691,7 +2162,7 @@ ssize_t ib_uverbs_post_recv(struct ib_uverbs_file *file,
goto out;
resp.bad_wr = 0;
ret = qp->device->post_recv(qp, wr, &bad_wr);
ret = qp->device->post_recv(qp->real_qp, wr, &bad_wr);
put_qp_read(qp);
@ -1975,17 +2446,180 @@ out_put:
return ret ? ret : in_len;
}
int __uverbs_create_xsrq(struct ib_uverbs_file *file,
struct ib_uverbs_create_xsrq *cmd,
struct ib_udata *udata)
{
struct ib_uverbs_create_srq_resp resp;
struct ib_usrq_object *obj;
struct ib_pd *pd;
struct ib_srq *srq;
struct ib_uobject *uninitialized_var(xrcd_uobj);
struct ib_srq_init_attr attr;
int ret;
obj = kmalloc(sizeof *obj, GFP_KERNEL);
if (!obj)
return -ENOMEM;
init_uobj(&obj->uevent.uobject, cmd->user_handle, file->ucontext, &srq_lock_key);
down_write(&obj->uevent.uobject.mutex);
pd = idr_read_pd(cmd->pd_handle, file->ucontext);
if (!pd) {
ret = -EINVAL;
goto err;
}
if (cmd->srq_type == IB_SRQT_XRC) {
attr.ext.xrc.cq = idr_read_cq(cmd->cq_handle, file->ucontext, 0);
if (!attr.ext.xrc.cq) {
ret = -EINVAL;
goto err_put_pd;
}
attr.ext.xrc.xrcd = idr_read_xrcd(cmd->xrcd_handle, file->ucontext, &xrcd_uobj);
if (!attr.ext.xrc.xrcd) {
ret = -EINVAL;
goto err_put_cq;
}
obj->uxrcd = container_of(xrcd_uobj, struct ib_uxrcd_object, uobject);
atomic_inc(&obj->uxrcd->refcnt);
}
attr.event_handler = ib_uverbs_srq_event_handler;
attr.srq_context = file;
attr.srq_type = cmd->srq_type;
attr.attr.max_wr = cmd->max_wr;
attr.attr.max_sge = cmd->max_sge;
attr.attr.srq_limit = cmd->srq_limit;
obj->uevent.events_reported = 0;
INIT_LIST_HEAD(&obj->uevent.event_list);
srq = pd->device->create_srq(pd, &attr, udata);
if (IS_ERR(srq)) {
ret = PTR_ERR(srq);
goto err_put;
}
srq->device = pd->device;
srq->pd = pd;
srq->srq_type = cmd->srq_type;
srq->uobject = &obj->uevent.uobject;
srq->event_handler = attr.event_handler;
srq->srq_context = attr.srq_context;
if (cmd->srq_type == IB_SRQT_XRC) {
srq->ext.xrc.cq = attr.ext.xrc.cq;
srq->ext.xrc.xrcd = attr.ext.xrc.xrcd;
atomic_inc(&attr.ext.xrc.cq->usecnt);
atomic_inc(&attr.ext.xrc.xrcd->usecnt);
}
atomic_inc(&pd->usecnt);
atomic_set(&srq->usecnt, 0);
obj->uevent.uobject.object = srq;
ret = idr_add_uobj(&ib_uverbs_srq_idr, &obj->uevent.uobject);
if (ret)
goto err_destroy;
memset(&resp, 0, sizeof resp);
resp.srq_handle = obj->uevent.uobject.id;
resp.max_wr = attr.attr.max_wr;
resp.max_sge = attr.attr.max_sge;
if (cmd->srq_type == IB_SRQT_XRC)
resp.srqn = srq->ext.xrc.srq_num;
if (copy_to_user((void __user *) (unsigned long) cmd->response,
&resp, sizeof resp)) {
ret = -EFAULT;
goto err_copy;
}
if (cmd->srq_type == IB_SRQT_XRC) {
put_uobj_read(xrcd_uobj);
put_cq_read(attr.ext.xrc.cq);
}
put_pd_read(pd);
mutex_lock(&file->mutex);
list_add_tail(&obj->uevent.uobject.list, &file->ucontext->srq_list);
mutex_unlock(&file->mutex);
obj->uevent.uobject.live = 1;
up_write(&obj->uevent.uobject.mutex);
return 0;
err_copy:
idr_remove_uobj(&ib_uverbs_srq_idr, &obj->uevent.uobject);
err_destroy:
ib_destroy_srq(srq);
err_put:
if (cmd->srq_type == IB_SRQT_XRC) {
atomic_dec(&obj->uxrcd->refcnt);
put_uobj_read(xrcd_uobj);
}
err_put_cq:
if (cmd->srq_type == IB_SRQT_XRC)
put_cq_read(attr.ext.xrc.cq);
err_put_pd:
put_pd_read(pd);
err:
put_uobj_write(&obj->uevent.uobject);
return ret;
}
ssize_t ib_uverbs_create_srq(struct ib_uverbs_file *file,
const char __user *buf, int in_len,
int out_len)
{
struct ib_uverbs_create_srq cmd;
struct ib_uverbs_create_xsrq xcmd;
struct ib_uverbs_create_srq_resp resp;
struct ib_udata udata;
int ret;
if (out_len < sizeof resp)
return -ENOSPC;
if (copy_from_user(&cmd, buf, sizeof cmd))
return -EFAULT;
xcmd.response = cmd.response;
xcmd.user_handle = cmd.user_handle;
xcmd.srq_type = IB_SRQT_BASIC;
xcmd.pd_handle = cmd.pd_handle;
xcmd.max_wr = cmd.max_wr;
xcmd.max_sge = cmd.max_sge;
xcmd.srq_limit = cmd.srq_limit;
INIT_UDATA(&udata, buf + sizeof cmd,
(unsigned long) cmd.response + sizeof resp,
in_len - sizeof cmd, out_len - sizeof resp);
ret = __uverbs_create_xsrq(file, &xcmd, &udata);
if (ret)
return ret;
return in_len;
}
ssize_t ib_uverbs_create_xsrq(struct ib_uverbs_file *file,
const char __user *buf, int in_len, int out_len)
{
struct ib_uverbs_create_xsrq cmd;
struct ib_uverbs_create_srq_resp resp;
struct ib_udata udata;
struct ib_uevent_object *obj;
struct ib_pd *pd;
struct ib_srq *srq;
struct ib_srq_init_attr attr;
int ret;
if (out_len < sizeof resp)
@ -1998,82 +2632,11 @@ ssize_t ib_uverbs_create_srq(struct ib_uverbs_file *file,
(unsigned long) cmd.response + sizeof resp,
in_len - sizeof cmd, out_len - sizeof resp);
obj = kmalloc(sizeof *obj, GFP_KERNEL);
if (!obj)
return -ENOMEM;
init_uobj(&obj->uobject, cmd.user_handle, file->ucontext, &srq_lock_key);
down_write(&obj->uobject.mutex);
pd = idr_read_pd(cmd.pd_handle, file->ucontext);
if (!pd) {
ret = -EINVAL;
goto err;
}
attr.event_handler = ib_uverbs_srq_event_handler;
attr.srq_context = file;
attr.attr.max_wr = cmd.max_wr;
attr.attr.max_sge = cmd.max_sge;
attr.attr.srq_limit = cmd.srq_limit;
obj->events_reported = 0;
INIT_LIST_HEAD(&obj->event_list);
srq = pd->device->create_srq(pd, &attr, &udata);
if (IS_ERR(srq)) {
ret = PTR_ERR(srq);
goto err_put;
}
srq->device = pd->device;
srq->pd = pd;
srq->uobject = &obj->uobject;
srq->event_handler = attr.event_handler;
srq->srq_context = attr.srq_context;
atomic_inc(&pd->usecnt);
atomic_set(&srq->usecnt, 0);
obj->uobject.object = srq;
ret = idr_add_uobj(&ib_uverbs_srq_idr, &obj->uobject);
ret = __uverbs_create_xsrq(file, &cmd, &udata);
if (ret)
goto err_destroy;
memset(&resp, 0, sizeof resp);
resp.srq_handle = obj->uobject.id;
resp.max_wr = attr.attr.max_wr;
resp.max_sge = attr.attr.max_sge;
if (copy_to_user((void __user *) (unsigned long) cmd.response,
&resp, sizeof resp)) {
ret = -EFAULT;
goto err_copy;
}
put_pd_read(pd);
mutex_lock(&file->mutex);
list_add_tail(&obj->uobject.list, &file->ucontext->srq_list);
mutex_unlock(&file->mutex);
obj->uobject.live = 1;
up_write(&obj->uobject.mutex);
return ret;
return in_len;
err_copy:
idr_remove_uobj(&ib_uverbs_srq_idr, &obj->uobject);
err_destroy:
ib_destroy_srq(srq);
err_put:
put_pd_read(pd);
err:
put_uobj_write(&obj->uobject);
return ret;
}
ssize_t ib_uverbs_modify_srq(struct ib_uverbs_file *file,

30
drivers/infiniband/core/uverbs_main.c
View File

@ -72,6 +72,7 @@ DEFINE_IDR(ib_uverbs_ah_idr);
DEFINE_IDR(ib_uverbs_cq_idr);
DEFINE_IDR(ib_uverbs_qp_idr);
DEFINE_IDR(ib_uverbs_srq_idr);
DEFINE_IDR(ib_uverbs_xrcd_idr);
static DEFINE_SPINLOCK(map_lock);
static DECLARE_BITMAP(dev_map, IB_UVERBS_MAX_DEVICES);
@ -107,6 +108,10 @@ static ssize_t (*uverbs_cmd_table[])(struct ib_uverbs_file *file,
[IB_USER_VERBS_CMD_MODIFY_SRQ] = ib_uverbs_modify_srq,
[IB_USER_VERBS_CMD_QUERY_SRQ] = ib_uverbs_query_srq,
[IB_USER_VERBS_CMD_DESTROY_SRQ] = ib_uverbs_destroy_srq,
[IB_USER_VERBS_CMD_OPEN_XRCD] = ib_uverbs_open_xrcd,
[IB_USER_VERBS_CMD_CLOSE_XRCD] = ib_uverbs_close_xrcd,
[IB_USER_VERBS_CMD_CREATE_XSRQ] = ib_uverbs_create_xsrq,
[IB_USER_VERBS_CMD_OPEN_QP] = ib_uverbs_open_qp
};
static void ib_uverbs_add_one(struct ib_device *device);
@ -202,8 +207,12 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file,
container_of(uobj, struct ib_uqp_object, uevent.uobject);
idr_remove_uobj(&ib_uverbs_qp_idr, uobj);
ib_uverbs_detach_umcast(qp, uqp);
ib_destroy_qp(qp);
if (qp != qp->real_qp) {
ib_close_qp(qp);
} else {
ib_uverbs_detach_umcast(qp, uqp);
ib_destroy_qp(qp);
}
ib_uverbs_release_uevent(file, &uqp->uevent);
kfree(uqp);
}
@ -241,6 +250,18 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file,
kfree(uobj);
}
mutex_lock(&file->device->xrcd_tree_mutex);
list_for_each_entry_safe(uobj, tmp, &context->xrcd_list, list) {
struct ib_xrcd *xrcd = uobj->object;
struct ib_uxrcd_object *uxrcd =
container_of(uobj, struct ib_uxrcd_object, uobject);
idr_remove_uobj(&ib_uverbs_xrcd_idr, uobj);
ib_uverbs_dealloc_xrcd(file->device, xrcd);
kfree(uxrcd);
}
mutex_unlock(&file->device->xrcd_tree_mutex);
list_for_each_entry_safe(uobj, tmp, &context->pd_list, list) {
struct ib_pd *pd = uobj->object;
@ -557,8 +578,7 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
if (hdr.in_words * 4 != count)
return -EINVAL;
if (hdr.command < 0 ||
hdr.command >= ARRAY_SIZE(uverbs_cmd_table) ||
if (hdr.command >= ARRAY_SIZE(uverbs_cmd_table) ||
!uverbs_cmd_table[hdr.command])
return -EINVAL;
@ -741,6 +761,8 @@ static void ib_uverbs_add_one(struct ib_device *device)
kref_init(&uverbs_dev->ref);
init_completion(&uverbs_dev->comp);
uverbs_dev->xrcd_tree = RB_ROOT;
mutex_init(&uverbs_dev->xrcd_tree_mutex);
spin_lock(&map_lock);
devnum = find_first_zero_bit(dev_map, IB_UVERBS_MAX_DEVICES);

376
drivers/infiniband/core/verbs.c
View File

@ -39,6 +39,7 @@
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <rdma/ib_verbs.h>
#include <rdma/ib_cache.h>
@ -77,6 +78,31 @@ enum ib_rate mult_to_ib_rate(int mult)
}
EXPORT_SYMBOL(mult_to_ib_rate);
int ib_rate_to_mbps(enum ib_rate rate)
{
switch (rate) {
case IB_RATE_2_5_GBPS: return 2500;
case IB_RATE_5_GBPS: return 5000;
case IB_RATE_10_GBPS: return 10000;
case IB_RATE_20_GBPS: return 20000;
case IB_RATE_30_GBPS: return 30000;
case IB_RATE_40_GBPS: return 40000;
case IB_RATE_60_GBPS: return 60000;
case IB_RATE_80_GBPS: return 80000;
case IB_RATE_120_GBPS: return 120000;
case IB_RATE_14_GBPS: return 14062;
case IB_RATE_56_GBPS: return 56250;
case IB_RATE_112_GBPS: return 112500;
case IB_RATE_168_GBPS: return 168750;
case IB_RATE_25_GBPS: return 25781;
case IB_RATE_100_GBPS: return 103125;
case IB_RATE_200_GBPS: return 206250;
case IB_RATE_300_GBPS: return 309375;
default: return -1;
}
}
EXPORT_SYMBOL(ib_rate_to_mbps);
enum rdma_transport_type
rdma_node_get_transport(enum rdma_node_type node_type)
{
@ -250,6 +276,13 @@ struct ib_srq *ib_create_srq(struct ib_pd *pd,
srq->uobject = NULL;
srq->event_handler = srq_init_attr->event_handler;
srq->srq_context = srq_init_attr->srq_context;
srq->srq_type = srq_init_attr->srq_type;
if (srq->srq_type == IB_SRQT_XRC) {
srq->ext.xrc.xrcd = srq_init_attr->ext.xrc.xrcd;
srq->ext.xrc.cq = srq_init_attr->ext.xrc.cq;
atomic_inc(&srq->ext.xrc.xrcd->usecnt);
atomic_inc(&srq->ext.xrc.cq->usecnt);
}
atomic_inc(&pd->usecnt);
atomic_set(&srq->usecnt, 0);
}
@ -279,16 +312,29 @@ EXPORT_SYMBOL(ib_query_srq);
int ib_destroy_srq(struct ib_srq *srq)
{
struct ib_pd *pd;
enum ib_srq_type srq_type;
struct ib_xrcd *uninitialized_var(xrcd);
struct ib_cq *uninitialized_var(cq);
int ret;
if (atomic_read(&srq->usecnt))
return -EBUSY;
pd = srq->pd;
srq_type = srq->srq_type;
if (srq_type == IB_SRQT_XRC) {
xrcd = srq->ext.xrc.xrcd;
cq = srq->ext.xrc.cq;
}
ret = srq->device->destroy_srq(srq);
if (!ret)
if (!ret) {
atomic_dec(&pd->usecnt);
if (srq_type == IB_SRQT_XRC) {
atomic_dec(&xrcd->usecnt);
atomic_dec(&cq->usecnt);
}
}
return ret;
}
@ -296,28 +342,123 @@ EXPORT_SYMBOL(ib_destroy_srq);
/* Queue pairs */
static void __ib_shared_qp_event_handler(struct ib_event *event, void *context)
{
struct ib_qp *qp = context;
list_for_each_entry(event->element.qp, &qp->open_list, open_list)
event->element.qp->event_handler(event, event->element.qp->qp_context);
}
static void __ib_insert_xrcd_qp(struct ib_xrcd *xrcd, struct ib_qp *qp)
{
mutex_lock(&xrcd->tgt_qp_mutex);
list_add(&qp->xrcd_list, &xrcd->tgt_qp_list);
mutex_unlock(&xrcd->tgt_qp_mutex);
}
static struct ib_qp *__ib_open_qp(struct ib_qp *real_qp,
void (*event_handler)(struct ib_event *, void *),
void *qp_context)
{
struct ib_qp *qp;
unsigned long flags;
qp = kzalloc(sizeof *qp, GFP_KERNEL);
if (!qp)
return ERR_PTR(-ENOMEM);
qp->real_qp = real_qp;
atomic_inc(&real_qp->usecnt);
qp->device = real_qp->device;
qp->event_handler = event_handler;
qp->qp_context = qp_context;
qp->qp_num = real_qp->qp_num;
qp->qp_type = real_qp->qp_type;
spin_lock_irqsave(&real_qp->device->event_handler_lock, flags);
list_add(&qp->open_list, &real_qp->open_list);
spin_unlock_irqrestore(&real_qp->device->event_handler_lock, flags);
return qp;
}
struct ib_qp *ib_open_qp(struct ib_xrcd *xrcd,
struct ib_qp_open_attr *qp_open_attr)
{
struct ib_qp *qp, *real_qp;
if (qp_open_attr->qp_type != IB_QPT_XRC_TGT)
return ERR_PTR(-EINVAL);
qp = ERR_PTR(-EINVAL);
mutex_lock(&xrcd->tgt_qp_mutex);
list_for_each_entry(real_qp, &xrcd->tgt_qp_list, xrcd_list) {
if (real_qp->qp_num == qp_open_attr->qp_num) {
qp = __ib_open_qp(real_qp, qp_open_attr->event_handler,
qp_open_attr->qp_context);
break;
}
}
mutex_unlock(&xrcd->tgt_qp_mutex);
return qp;
}
EXPORT_SYMBOL(ib_open_qp);
struct ib_qp *ib_create_qp(struct ib_pd *pd,
struct ib_qp_init_attr *qp_init_attr)
{
struct ib_qp *qp;
struct ib_qp *qp, *real_qp;
struct ib_device *device;
qp = pd->device->create_qp(pd, qp_init_attr, NULL);
device = pd ? pd->device : qp_init_attr->xrcd->device;
qp = device->create_qp(pd, qp_init_attr, NULL);
if (!IS_ERR(qp)) {
qp->device = pd->device;
qp->pd = pd;
qp->send_cq = qp_init_attr->send_cq;
qp->recv_cq = qp_init_attr->recv_cq;
qp->srq = qp_init_attr->srq;
qp->uobject = NULL;
qp->event_handler = qp_init_attr->event_handler;
qp->qp_context = qp_init_attr->qp_context;
qp->qp_type = qp_init_attr->qp_type;
atomic_inc(&pd->usecnt);
atomic_inc(&qp_init_attr->send_cq->usecnt);
atomic_inc(&qp_init_attr->recv_cq->usecnt);
if (qp_init_attr->srq)
atomic_inc(&qp_init_attr->srq->usecnt);
qp->device = device;
qp->real_qp = qp;
qp->uobject = NULL;
qp->qp_type = qp_init_attr->qp_type;
if (qp_init_attr->qp_type == IB_QPT_XRC_TGT) {
qp->event_handler = __ib_shared_qp_event_handler;
qp->qp_context = qp;
qp->pd = NULL;
qp->send_cq = qp->recv_cq = NULL;
qp->srq = NULL;
qp->xrcd = qp_init_attr->xrcd;
atomic_inc(&qp_init_attr->xrcd->usecnt);
INIT_LIST_HEAD(&qp->open_list);
atomic_set(&qp->usecnt, 0);
real_qp = qp;
qp = __ib_open_qp(real_qp, qp_init_attr->event_handler,
qp_init_attr->qp_context);
if (!IS_ERR(qp))
__ib_insert_xrcd_qp(qp_init_attr->xrcd, real_qp);
else
real_qp->device->destroy_qp(real_qp);
} else {
qp->event_handler = qp_init_attr->event_handler;
qp->qp_context = qp_init_attr->qp_context;
if (qp_init_attr->qp_type == IB_QPT_XRC_INI) {
qp->recv_cq = NULL;
qp->srq = NULL;
} else {
qp->recv_cq = qp_init_attr->recv_cq;
atomic_inc(&qp_init_attr->recv_cq->usecnt);
qp->srq = qp_init_attr->srq;
if (qp->srq)
atomic_inc(&qp_init_attr->srq->usecnt);
}
qp->pd = pd;
qp->send_cq = qp_init_attr->send_cq;
qp->xrcd = NULL;
atomic_inc(&pd->usecnt);
atomic_inc(&qp_init_attr->send_cq->usecnt);
}
}
return qp;
@ -326,8 +467,8 @@ EXPORT_SYMBOL(ib_create_qp);
static const struct {
int valid;
enum ib_qp_attr_mask req_param[IB_QPT_RAW_ETHERTYPE + 1];
enum ib_qp_attr_mask opt_param[IB_QPT_RAW_ETHERTYPE + 1];
enum ib_qp_attr_mask req_param[IB_QPT_MAX];
enum ib_qp_attr_mask opt_param[IB_QPT_MAX];
} qp_state_table[IB_QPS_ERR + 1][IB_QPS_ERR + 1] = {
[IB_QPS_RESET] = {
[IB_QPS_RESET] = { .valid = 1 },
@ -343,6 +484,12 @@ static const struct {
[IB_QPT_RC] = (IB_QP_PKEY_INDEX |
IB_QP_PORT |
IB_QP_ACCESS_FLAGS),
[IB_QPT_XRC_INI] = (IB_QP_PKEY_INDEX |
IB_QP_PORT |
IB_QP_ACCESS_FLAGS),
[IB_QPT_XRC_TGT] = (IB_QP_PKEY_INDEX |
IB_QP_PORT |
IB_QP_ACCESS_FLAGS),
[IB_QPT_SMI] = (IB_QP_PKEY_INDEX |
IB_QP_QKEY),
[IB_QPT_GSI] = (IB_QP_PKEY_INDEX |
@ -365,6 +512,12 @@ static const struct {
[IB_QPT_RC] = (IB_QP_PKEY_INDEX |
IB_QP_PORT |
IB_QP_ACCESS_FLAGS),
[IB_QPT_XRC_INI] = (IB_QP_PKEY_INDEX |
IB_QP_PORT |
IB_QP_ACCESS_FLAGS),
[IB_QPT_XRC_TGT] = (IB_QP_PKEY_INDEX |
IB_QP_PORT |
IB_QP_ACCESS_FLAGS),
[IB_QPT_SMI] = (IB_QP_PKEY_INDEX |
IB_QP_QKEY),
[IB_QPT_GSI] = (IB_QP_PKEY_INDEX |
@ -384,6 +537,16 @@ static const struct {
IB_QP_RQ_PSN |
IB_QP_MAX_DEST_RD_ATOMIC |
IB_QP_MIN_RNR_TIMER),
[IB_QPT_XRC_INI] = (IB_QP_AV |
IB_QP_PATH_MTU |
IB_QP_DEST_QPN |
IB_QP_RQ_PSN),
[IB_QPT_XRC_TGT] = (IB_QP_AV |
IB_QP_PATH_MTU |
IB_QP_DEST_QPN |
IB_QP_RQ_PSN |
IB_QP_MAX_DEST_RD_ATOMIC |
IB_QP_MIN_RNR_TIMER),
},
.opt_param = {
[IB_QPT_UD] = (IB_QP_PKEY_INDEX |
@ -394,6 +557,12 @@ static const struct {
[IB_QPT_RC] = (IB_QP_ALT_PATH |
IB_QP_ACCESS_FLAGS |
IB_QP_PKEY_INDEX),
[IB_QPT_XRC_INI] = (IB_QP_ALT_PATH |
IB_QP_ACCESS_FLAGS |
IB_QP_PKEY_INDEX),
[IB_QPT_XRC_TGT] = (IB_QP_ALT_PATH |
IB_QP_ACCESS_FLAGS |
IB_QP_PKEY_INDEX),
[IB_QPT_SMI] = (IB_QP_PKEY_INDEX |
IB_QP_QKEY),
[IB_QPT_GSI] = (IB_QP_PKEY_INDEX |
@ -414,6 +583,13 @@ static const struct {
IB_QP_RNR_RETRY |
IB_QP_SQ_PSN |
IB_QP_MAX_QP_RD_ATOMIC),
[IB_QPT_XRC_INI] = (IB_QP_TIMEOUT |
IB_QP_RETRY_CNT |
IB_QP_RNR_RETRY |
IB_QP_SQ_PSN |
IB_QP_MAX_QP_RD_ATOMIC),
[IB_QPT_XRC_TGT] = (IB_QP_TIMEOUT |
IB_QP_SQ_PSN),
[IB_QPT_SMI] = IB_QP_SQ_PSN,
[IB_QPT_GSI] = IB_QP_SQ_PSN,
},
@ -429,6 +605,15 @@ static const struct {
IB_QP_ACCESS_FLAGS |
IB_QP_MIN_RNR_TIMER |
IB_QP_PATH_MIG_STATE),
[IB_QPT_XRC_INI] = (IB_QP_CUR_STATE |
IB_QP_ALT_PATH |
IB_QP_ACCESS_FLAGS |
IB_QP_PATH_MIG_STATE),
[IB_QPT_XRC_TGT] = (IB_QP_CUR_STATE |
IB_QP_ALT_PATH |
IB_QP_ACCESS_FLAGS |
IB_QP_MIN_RNR_TIMER |
IB_QP_PATH_MIG_STATE),
[IB_QPT_SMI] = (IB_QP_CUR_STATE |
IB_QP_QKEY),
[IB_QPT_GSI] = (IB_QP_CUR_STATE |
@ -453,6 +638,15 @@ static const struct {
IB_QP_ALT_PATH |
IB_QP_PATH_MIG_STATE |
IB_QP_MIN_RNR_TIMER),
[IB_QPT_XRC_INI] = (IB_QP_CUR_STATE |
IB_QP_ACCESS_FLAGS |
IB_QP_ALT_PATH |
IB_QP_PATH_MIG_STATE),
[IB_QPT_XRC_TGT] = (IB_QP_CUR_STATE |
IB_QP_ACCESS_FLAGS |
IB_QP_ALT_PATH |
IB_QP_PATH_MIG_STATE |
IB_QP_MIN_RNR_TIMER),
[IB_QPT_SMI] = (IB_QP_CUR_STATE |
IB_QP_QKEY),
[IB_QPT_GSI] = (IB_QP_CUR_STATE |
@ -465,6 +659,8 @@ static const struct {
[IB_QPT_UD] = IB_QP_EN_SQD_ASYNC_NOTIFY,
[IB_QPT_UC] = IB_QP_EN_SQD_ASYNC_NOTIFY,
[IB_QPT_RC] = IB_QP_EN_SQD_ASYNC_NOTIFY,
[IB_QPT_XRC_INI] = IB_QP_EN_SQD_ASYNC_NOTIFY,
[IB_QPT_XRC_TGT] = IB_QP_EN_SQD_ASYNC_NOTIFY, /* ??? */
[IB_QPT_SMI] = IB_QP_EN_SQD_ASYNC_NOTIFY,
[IB_QPT_GSI] = IB_QP_EN_SQD_ASYNC_NOTIFY
}
@ -487,6 +683,15 @@ static const struct {
IB_QP_ACCESS_FLAGS |
IB_QP_MIN_RNR_TIMER |
IB_QP_PATH_MIG_STATE),
[IB_QPT_XRC_INI] = (IB_QP_CUR_STATE |
IB_QP_ALT_PATH |
IB_QP_ACCESS_FLAGS |
IB_QP_PATH_MIG_STATE),
[IB_QPT_XRC_TGT] = (IB_QP_CUR_STATE |
IB_QP_ALT_PATH |
IB_QP_ACCESS_FLAGS |
IB_QP_MIN_RNR_TIMER |
IB_QP_PATH_MIG_STATE),
[IB_QPT_SMI] = (IB_QP_CUR_STATE |
IB_QP_QKEY),
[IB_QPT_GSI] = (IB_QP_CUR_STATE |
@ -515,6 +720,25 @@ static const struct {
IB_QP_PKEY_INDEX |
IB_QP_MIN_RNR_TIMER |
IB_QP_PATH_MIG_STATE),
[IB_QPT_XRC_INI] = (IB_QP_PORT |
IB_QP_AV |
IB_QP_TIMEOUT |
IB_QP_RETRY_CNT |
IB_QP_RNR_RETRY |
IB_QP_MAX_QP_RD_ATOMIC |
IB_QP_ALT_PATH |
IB_QP_ACCESS_FLAGS |
IB_QP_PKEY_INDEX |
IB_QP_PATH_MIG_STATE),
[IB_QPT_XRC_TGT] = (IB_QP_PORT |
IB_QP_AV |
IB_QP_TIMEOUT |
IB_QP_MAX_DEST_RD_ATOMIC |
IB_QP_ALT_PATH |
IB_QP_ACCESS_FLAGS |
IB_QP_PKEY_INDEX |
IB_QP_MIN_RNR_TIMER |
IB_QP_PATH_MIG_STATE),
[IB_QPT_SMI] = (IB_QP_PKEY_INDEX |
IB_QP_QKEY),
[IB_QPT_GSI] = (IB_QP_PKEY_INDEX |
@ -579,7 +803,7 @@ int ib_modify_qp(struct ib_qp *qp,
struct ib_qp_attr *qp_attr,
int qp_attr_mask)
{
return qp->device->modify_qp(qp, qp_attr, qp_attr_mask, NULL);
return qp->device->modify_qp(qp->real_qp, qp_attr, qp_attr_mask, NULL);
}
EXPORT_SYMBOL(ib_modify_qp);
@ -589,11 +813,59 @@ int ib_query_qp(struct ib_qp *qp,
struct ib_qp_init_attr *qp_init_attr)
{
return qp->device->query_qp ?
qp->device->query_qp(qp, qp_attr, qp_attr_mask, qp_init_attr) :
qp->device->query_qp(qp->real_qp, qp_attr, qp_attr_mask, qp_init_attr) :
-ENOSYS;
}
EXPORT_SYMBOL(ib_query_qp);
int ib_close_qp(struct ib_qp *qp)
{
struct ib_qp *real_qp;
unsigned long flags;
real_qp = qp->real_qp;
if (real_qp == qp)
return -EINVAL;
spin_lock_irqsave(&real_qp->device->event_handler_lock, flags);
list_del(&qp->open_list);
spin_unlock_irqrestore(&real_qp->device->event_handler_lock, flags);
atomic_dec(&real_qp->usecnt);
kfree(qp);
return 0;
}
EXPORT_SYMBOL(ib_close_qp);
static int __ib_destroy_shared_qp(struct ib_qp *qp)
{
struct ib_xrcd *xrcd;
struct ib_qp *real_qp;
int ret;
real_qp = qp->real_qp;
xrcd = real_qp->xrcd;
mutex_lock(&xrcd->tgt_qp_mutex);
ib_close_qp(qp);
if (atomic_read(&real_qp->usecnt) == 0)
list_del(&real_qp->xrcd_list);
else
real_qp = NULL;
mutex_unlock(&xrcd->tgt_qp_mutex);
if (real_qp) {
ret = ib_destroy_qp(real_qp);
if (!ret)
atomic_dec(&xrcd->usecnt);
else
__ib_insert_xrcd_qp(xrcd, real_qp);
}
return 0;
}
int ib_destroy_qp(struct ib_qp *qp)
{
struct ib_pd *pd;
@ -601,16 +873,25 @@ int ib_destroy_qp(struct ib_qp *qp)
struct ib_srq *srq;
int ret;
pd = qp->pd;
scq = qp->send_cq;
rcq = qp->recv_cq;
srq = qp->srq;
if (atomic_read(&qp->usecnt))
return -EBUSY;
if (qp->real_qp != qp)
return __ib_destroy_shared_qp(qp);
pd = qp->pd;
scq = qp->send_cq;
rcq = qp->recv_cq;
srq = qp->srq;
ret = qp->device->destroy_qp(qp);
if (!ret) {
atomic_dec(&pd->usecnt);
atomic_dec(&scq->usecnt);
atomic_dec(&rcq->usecnt);
if (pd)
atomic_dec(&pd->usecnt);
if (scq)
atomic_dec(&scq->usecnt);
if (rcq)
atomic_dec(&rcq->usecnt);
if (srq)
atomic_dec(&srq->usecnt);
}
@ -920,3 +1201,42 @@ int ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid)
return qp->device->detach_mcast(qp, gid, lid);
}
EXPORT_SYMBOL(ib_detach_mcast);
struct ib_xrcd *ib_alloc_xrcd(struct ib_device *device)
{
struct ib_xrcd *xrcd;
if (!device->alloc_xrcd)
return ERR_PTR(-ENOSYS);
xrcd = device->alloc_xrcd(device, NULL, NULL);
if (!IS_ERR(xrcd)) {
xrcd->device = device;
xrcd->inode = NULL;
atomic_set(&xrcd->usecnt, 0);
mutex_init(&xrcd->tgt_qp_mutex);
INIT_LIST_HEAD(&xrcd->tgt_qp_list);
}
return xrcd;
}
EXPORT_SYMBOL(ib_alloc_xrcd);
int ib_dealloc_xrcd(struct ib_xrcd *xrcd)
{
struct ib_qp *qp;
int ret;
if (atomic_read(&xrcd->usecnt))
return -EBUSY;
while (!list_empty(&xrcd->tgt_qp_list)) {
qp = list_entry(xrcd->tgt_qp_list.next, struct ib_qp, xrcd_list);
ret = ib_destroy_qp(qp);
if (ret)
return ret;
}
return xrcd->device->dealloc_xrcd(xrcd);
}
EXPORT_SYMBOL(ib_dealloc_xrcd);

5
drivers/infiniband/hw/amso1100/c2_ae.c
View File

@ -288,6 +288,11 @@ void c2_ae_event(struct c2_dev *c2dev, u32 mq_index)
cm_event.private_data_len =
be32_to_cpu(req->private_data_length);
cm_event.private_data = req->private_data;
/*
* Until ird/ord negotiation via MPAv2 support is added, send
* max supported values
*/
cm_event.ird = cm_event.ord = 128;
if (cm_id->event_handler)
cm_id->event_handler(cm_id, &cm_event);

5
drivers/infiniband/hw/amso1100/c2_intr.c
View File

@ -183,6 +183,11 @@ static void handle_vq(struct c2_dev *c2dev, u32 mq_index)
case IW_CM_EVENT_ESTABLISHED:
c2_set_qp_state(req->qp,
C2_QP_STATE_RTS);
/*
* Until ird/ord negotiation via MPAv2 support is added, send
* max supported values
*/
cm_event.ird = cm_event.ord = 128;
case IW_CM_EVENT_CLOSE:
/*

10
drivers/infiniband/hw/cxgb3/iwch_cm.c
View File

@ -753,6 +753,11 @@ static void connect_request_upcall(struct iwch_ep *ep)
event.private_data_len = ep->plen;
event.private_data = ep->mpa_pkt + sizeof(struct mpa_message);
event.provider_data = ep;
/*
* Until ird/ord negotiation via MPAv2 support is added, send max
* supported values
*/
event.ird = event.ord = 8;
if (state_read(&ep->parent_ep->com) != DEAD) {
get_ep(&ep->com);
ep->parent_ep->com.cm_id->event_handler(
@ -770,6 +775,11 @@ static void established_upcall(struct iwch_ep *ep)
PDBG("%s ep %p\n", __func__, ep);
memset(&event, 0, sizeof(event));
event.event = IW_CM_EVENT_ESTABLISHED;
/*
* Until ird/ord negotiation via MPAv2 support is added, send max
* supported values
*/
event.ird = event.ord = 8;
if (ep->com.cm_id) {
PDBG("%s ep %p tid %d\n", __func__, ep, ep->hwtid);
ep->com.cm_id->event_handler(ep->com.cm_id, &event);

6
drivers/infiniband/hw/cxgb3/iwch_ev.c
View File

@ -46,6 +46,7 @@ static void post_qp_event(struct iwch_dev *rnicp, struct iwch_cq *chp,
struct ib_event event;
struct iwch_qp_attributes attrs;
struct iwch_qp *qhp;
unsigned long flag;
spin_lock(&rnicp->lock);
qhp = get_qhp(rnicp, CQE_QPID(rsp_msg->cqe));
@ -94,7 +95,9 @@ static void post_qp_event(struct iwch_dev *rnicp, struct iwch_cq *chp,
if (qhp->ibqp.event_handler)
(*qhp->ibqp.event_handler)(&event, qhp->ibqp.qp_context);
spin_lock_irqsave(&chp->comp_handler_lock, flag);
(*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context);
spin_unlock_irqrestore(&chp->comp_handler_lock, flag);
if (atomic_dec_and_test(&qhp->refcnt))
wake_up(&qhp->wait);
@ -107,6 +110,7 @@ void iwch_ev_dispatch(struct cxio_rdev *rdev_p, struct sk_buff *skb)
struct iwch_cq *chp;
struct iwch_qp *qhp;
u32 cqid = RSPQ_CQID(rsp_msg);
unsigned long flag;
rnicp = (struct iwch_dev *) rdev_p->ulp;
spin_lock(&rnicp->lock);
@ -170,7 +174,9 @@ void iwch_ev_dispatch(struct cxio_rdev *rdev_p, struct sk_buff *skb)
*/
if (qhp->ep && SQ_TYPE(rsp_msg->cqe))
dst_confirm(qhp->ep->dst);
spin_lock_irqsave(&chp->comp_handler_lock, flag);
(*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context);
spin_unlock_irqrestore(&chp->comp_handler_lock, flag);
break;
case TPT_ERR_STAG:

1
drivers/infiniband/hw/cxgb3/iwch_provider.c
View File

@ -190,6 +190,7 @@ static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, int entries, int ve
chp->rhp = rhp;
chp->ibcq.cqe = 1 << chp->cq.size_log2;
spin_lock_init(&chp->lock);
spin_lock_init(&chp->comp_handler_lock);
atomic_set(&chp->refcnt, 1);
init_waitqueue_head(&chp->wait);
if (insert_handle(rhp, &rhp->cqidr, chp, chp->cq.cqid)) {

1
drivers/infiniband/hw/cxgb3/iwch_provider.h
View File

@ -103,6 +103,7 @@ struct iwch_cq {
struct iwch_dev *rhp;
struct t3_cq cq;
spinlock_t lock;
spinlock_t comp_handler_lock;
atomic_t refcnt;
wait_queue_head_t wait;
u32 __user *user_rptr_addr;

14
drivers/infiniband/hw/cxgb3/iwch_qp.c
View File

@ -822,8 +822,11 @@ static void __flush_qp(struct iwch_qp *qhp, struct iwch_cq *rchp,
flushed = cxio_flush_rq(&qhp->wq, &rchp->cq, count);
spin_unlock(&qhp->lock);
spin_unlock_irqrestore(&rchp->lock, *flag);
if (flushed)
if (flushed) {
spin_lock_irqsave(&rchp->comp_handler_lock, *flag);
(*rchp->ibcq.comp_handler)(&rchp->ibcq, rchp->ibcq.cq_context);
spin_unlock_irqrestore(&rchp->comp_handler_lock, *flag);
}
/* locking hierarchy: cq lock first, then qp lock. */
spin_lock_irqsave(&schp->lock, *flag);
@ -833,8 +836,11 @@ static void __flush_qp(struct iwch_qp *qhp, struct iwch_cq *rchp,
flushed = cxio_flush_sq(&qhp->wq, &schp->cq, count);
spin_unlock(&qhp->lock);
spin_unlock_irqrestore(&schp->lock, *flag);
if (flushed)
if (flushed) {
spin_lock_irqsave(&schp->comp_handler_lock, *flag);
(*schp->ibcq.comp_handler)(&schp->ibcq, schp->ibcq.cq_context);
spin_unlock_irqrestore(&schp->comp_handler_lock, *flag);
}
/* deref */
if (atomic_dec_and_test(&qhp->refcnt))
@ -853,11 +859,15 @@ static void flush_qp(struct iwch_qp *qhp, unsigned long *flag)
if (qhp->ibqp.uobject) {
cxio_set_wq_in_error(&qhp->wq);
cxio_set_cq_in_error(&rchp->cq);
spin_lock_irqsave(&rchp->comp_handler_lock, *flag);
(*rchp->ibcq.comp_handler)(&rchp->ibcq, rchp->ibcq.cq_context);
spin_unlock_irqrestore(&rchp->comp_handler_lock, *flag);
if (schp != rchp) {
cxio_set_cq_in_error(&schp->cq);
spin_lock_irqsave(&schp->comp_handler_lock, *flag);
(*schp->ibcq.comp_handler)(&schp->ibcq,
schp->ibcq.cq_context);
spin_unlock_irqrestore(&schp->comp_handler_lock, *flag);
}
return;
}

469
drivers/infiniband/hw/cxgb4/cm.c
View File

@ -103,7 +103,8 @@ MODULE_PARM_DESC(ep_timeout_secs, "CM Endpoint operation timeout "
static int mpa_rev = 1;
module_param(mpa_rev, int, 0644);
MODULE_PARM_DESC(mpa_rev, "MPA Revision, 0 supports amso1100, "
"1 is spec compliant. (default=1)");
"1 is RFC0544 spec compliant, 2 is IETF MPA Peer Connect Draft"
" compliant (default=1)");
static int markers_enabled;
module_param(markers_enabled, int, 0644);
@ -497,17 +498,21 @@ static int send_connect(struct c4iw_ep *ep)
return c4iw_l2t_send(&ep->com.dev->rdev, skb, ep->l2t);
}
static void send_mpa_req(struct c4iw_ep *ep, struct sk_buff *skb)
static void send_mpa_req(struct c4iw_ep *ep, struct sk_buff *skb,
u8 mpa_rev_to_use)
{
int mpalen, wrlen;
struct fw_ofld_tx_data_wr *req;
struct mpa_message *mpa;
struct mpa_v2_conn_params mpa_v2_params;
PDBG("%s ep %p tid %u pd_len %d\n", __func__, ep, ep->hwtid, ep->plen);
BUG_ON(skb_cloned(skb));
mpalen = sizeof(*mpa) + ep->plen;
if (mpa_rev_to_use == 2)
mpalen += sizeof(struct mpa_v2_conn_params);
wrlen = roundup(mpalen + sizeof *req, 16);
skb = get_skb(skb, wrlen, GFP_KERNEL);
if (!skb) {
@ -533,12 +538,39 @@ static void send_mpa_req(struct c4iw_ep *ep, struct sk_buff *skb)
mpa = (struct mpa_message *)(req + 1);
memcpy(mpa->key, MPA_KEY_REQ, sizeof(mpa->key));
mpa->flags = (crc_enabled ? MPA_CRC : 0) |
(markers_enabled ? MPA_MARKERS : 0);
(markers_enabled ? MPA_MARKERS : 0) |
(mpa_rev_to_use == 2 ? MPA_ENHANCED_RDMA_CONN : 0);
mpa->private_data_size = htons(ep->plen);
mpa->revision = mpa_rev;
mpa->revision = mpa_rev_to_use;
if (mpa_rev_to_use == 1)
ep->tried_with_mpa_v1 = 1;
if (ep->plen)
memcpy(mpa->private_data, ep->mpa_pkt + sizeof(*mpa), ep->plen);
if (mpa_rev_to_use == 2) {
mpa->private_data_size +=
htons(sizeof(struct mpa_v2_conn_params));
mpa_v2_params.ird = htons((u16)ep->ird);
mpa_v2_params.ord = htons((u16)ep->ord);
if (peer2peer) {
mpa_v2_params.ird |= htons(MPA_V2_PEER2PEER_MODEL);
if (p2p_type == FW_RI_INIT_P2PTYPE_RDMA_WRITE)
mpa_v2_params.ord |=
htons(MPA_V2_RDMA_WRITE_RTR);
else if (p2p_type == FW_RI_INIT_P2PTYPE_READ_REQ)
mpa_v2_params.ord |=
htons(MPA_V2_RDMA_READ_RTR);
}
memcpy(mpa->private_data, &mpa_v2_params,
sizeof(struct mpa_v2_conn_params));
if (ep->plen)
memcpy(mpa->private_data +
sizeof(struct mpa_v2_conn_params),
ep->mpa_pkt + sizeof(*mpa), ep->plen);
} else
if (ep->plen)
memcpy(mpa->private_data,
ep->mpa_pkt + sizeof(*mpa), ep->plen);
/*
* Reference the mpa skb. This ensures the data area
@ -562,10 +594,13 @@ static int send_mpa_reject(struct c4iw_ep *ep, const void *pdata, u8 plen)
struct fw_ofld_tx_data_wr *req;
struct mpa_message *mpa;
struct sk_buff *skb;
struct mpa_v2_conn_params mpa_v2_params;
PDBG("%s ep %p tid %u pd_len %d\n", __func__, ep, ep->hwtid, ep->plen);
mpalen = sizeof(*mpa) + plen;
if (ep->mpa_attr.version == 2 && ep->mpa_attr.enhanced_rdma_conn)
mpalen += sizeof(struct mpa_v2_conn_params);
wrlen = roundup(mpalen + sizeof *req, 16);
skb = get_skb(NULL, wrlen, GFP_KERNEL);
@ -595,8 +630,29 @@ static int send_mpa_reject(struct c4iw_ep *ep, const void *pdata, u8 plen)
mpa->flags = MPA_REJECT;
mpa->revision = mpa_rev;
mpa->private_data_size = htons(plen);
if (plen)
memcpy(mpa->private_data, pdata, plen);
if (ep->mpa_attr.version == 2 && ep->mpa_attr.enhanced_rdma_conn) {
mpa->flags |= MPA_ENHANCED_RDMA_CONN;
mpa->private_data_size +=
htons(sizeof(struct mpa_v2_conn_params));
mpa_v2_params.ird = htons(((u16)ep->ird) |
(peer2peer ? MPA_V2_PEER2PEER_MODEL :
0));
mpa_v2_params.ord = htons(((u16)ep->ord) | (peer2peer ?
(p2p_type ==
FW_RI_INIT_P2PTYPE_RDMA_WRITE ?
MPA_V2_RDMA_WRITE_RTR : p2p_type ==
FW_RI_INIT_P2PTYPE_READ_REQ ?
MPA_V2_RDMA_READ_RTR : 0) : 0));
memcpy(mpa->private_data, &mpa_v2_params,
sizeof(struct mpa_v2_conn_params));
if (ep->plen)
memcpy(mpa->private_data +
sizeof(struct mpa_v2_conn_params), pdata, plen);
} else
if (plen)
memcpy(mpa->private_data, pdata, plen);
/*
* Reference the mpa skb again. This ensures the data area
@ -617,10 +673,13 @@ static int send_mpa_reply(struct c4iw_ep *ep, const void *pdata, u8 plen)
struct fw_ofld_tx_data_wr *req;
struct mpa_message *mpa;
struct sk_buff *skb;
struct mpa_v2_conn_params mpa_v2_params;
PDBG("%s ep %p tid %u pd_len %d\n", __func__, ep, ep->hwtid, ep->plen);
mpalen = sizeof(*mpa) + plen;
if (ep->mpa_attr.version == 2 && ep->mpa_attr.enhanced_rdma_conn)
mpalen += sizeof(struct mpa_v2_conn_params);
wrlen = roundup(mpalen + sizeof *req, 16);
skb = get_skb(NULL, wrlen, GFP_KERNEL);
@ -649,10 +708,36 @@ static int send_mpa_reply(struct c4iw_ep *ep, const void *pdata, u8 plen)
memcpy(mpa->key, MPA_KEY_REP, sizeof(mpa->key));
mpa->flags = (ep->mpa_attr.crc_enabled ? MPA_CRC : 0) |
(markers_enabled ? MPA_MARKERS : 0);
mpa->revision = mpa_rev;
mpa->revision = ep->mpa_attr.version;
mpa->private_data_size = htons(plen);
if (plen)
memcpy(mpa->private_data, pdata, plen);
if (ep->mpa_attr.version == 2 && ep->mpa_attr.enhanced_rdma_conn) {
mpa->flags |= MPA_ENHANCED_RDMA_CONN;
mpa->private_data_size +=
htons(sizeof(struct mpa_v2_conn_params));
mpa_v2_params.ird = htons((u16)ep->ird);
mpa_v2_params.ord = htons((u16)ep->ord);
if (peer2peer && (ep->mpa_attr.p2p_type !=
FW_RI_INIT_P2PTYPE_DISABLED)) {
mpa_v2_params.ird |= htons(MPA_V2_PEER2PEER_MODEL);
if (p2p_type == FW_RI_INIT_P2PTYPE_RDMA_WRITE)
mpa_v2_params.ord |=
htons(MPA_V2_RDMA_WRITE_RTR);
else if (p2p_type == FW_RI_INIT_P2PTYPE_READ_REQ)
mpa_v2_params.ord |=
htons(MPA_V2_RDMA_READ_RTR);
}
memcpy(mpa->private_data, &mpa_v2_params,
sizeof(struct mpa_v2_conn_params));
if (ep->plen)
memcpy(mpa->private_data +
sizeof(struct mpa_v2_conn_params), pdata, plen);
} else
if (plen)
memcpy(mpa->private_data, pdata, plen);
/*
* Reference the mpa skb. This ensures the data area
@ -695,7 +780,10 @@ static int act_establish(struct c4iw_dev *dev, struct sk_buff *skb)
/* start MPA negotiation */
send_flowc(ep, NULL);
send_mpa_req(ep, skb);
if (ep->retry_with_mpa_v1)
send_mpa_req(ep, skb, 1);
else
send_mpa_req(ep, skb, mpa_rev);
return 0;
}
@ -769,8 +857,19 @@ static void connect_reply_upcall(struct c4iw_ep *ep, int status)
event.remote_addr = ep->com.remote_addr;
if ((status == 0) || (status == -ECONNREFUSED)) {
event.private_data_len = ep->plen;
event.private_data = ep->mpa_pkt + sizeof(struct mpa_message);
if (!ep->tried_with_mpa_v1) {
/* this means MPA_v2 is used */
event.private_data_len = ep->plen -
sizeof(struct mpa_v2_conn_params);
event.private_data = ep->mpa_pkt +
sizeof(struct mpa_message) +
sizeof(struct mpa_v2_conn_params);
} else {
/* this means MPA_v1 is used */
event.private_data_len = ep->plen;
event.private_data = ep->mpa_pkt +
sizeof(struct mpa_message);
}
}
PDBG("%s ep %p tid %u status %d\n", __func__, ep,
@ -793,9 +892,22 @@ static void connect_request_upcall(struct c4iw_ep *ep)
event.event = IW_CM_EVENT_CONNECT_REQUEST;
event.local_addr = ep->com.local_addr;
event.remote_addr = ep->com.remote_addr;
event.private_data_len = ep->plen;
event.private_data = ep->mpa_pkt + sizeof(struct mpa_message);
event.provider_data = ep;
if (!ep->tried_with_mpa_v1) {
/* this means MPA_v2 is used */
event.ord = ep->ord;
event.ird = ep->ird;
event.private_data_len = ep->plen -
sizeof(struct mpa_v2_conn_params);
event.private_data = ep->mpa_pkt + sizeof(struct mpa_message) +
sizeof(struct mpa_v2_conn_params);
} else {
/* this means MPA_v1 is used. Send max supported */
event.ord = c4iw_max_read_depth;
event.ird = c4iw_max_read_depth;
event.private_data_len = ep->plen;
event.private_data = ep->mpa_pkt + sizeof(struct mpa_message);
}
if (state_read(&ep->parent_ep->com) != DEAD) {
c4iw_get_ep(&ep->com);
ep->parent_ep->com.cm_id->event_handler(
@ -813,6 +925,8 @@ static void established_upcall(struct c4iw_ep *ep)
PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid);
memset(&event, 0, sizeof(event));
event.event = IW_CM_EVENT_ESTABLISHED;
event.ird = ep->ird;
event.ord = ep->ord;
if (ep->com.cm_id) {
PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid);
ep->com.cm_id->event_handler(ep->com.cm_id, &event);
@ -848,7 +962,10 @@ static int update_rx_credits(struct c4iw_ep *ep, u32 credits)
static void process_mpa_reply(struct c4iw_ep *ep, struct sk_buff *skb)
{
struct mpa_message *mpa;
struct mpa_v2_conn_params *mpa_v2_params;
u16 plen;
u16 resp_ird, resp_ord;
u8 rtr_mismatch = 0, insuff_ird = 0;
struct c4iw_qp_attributes attrs;
enum c4iw_qp_attr_mask mask;
int err;
@ -888,7 +1005,9 @@ static void process_mpa_reply(struct c4iw_ep *ep, struct sk_buff *skb)
mpa = (struct mpa_message *) ep->mpa_pkt;
/* Validate MPA header. */
if (mpa->revision != mpa_rev) {
if (mpa->revision > mpa_rev) {
printk(KERN_ERR MOD "%s MPA version mismatch. Local = %d,"
" Received = %d\n", __func__, mpa_rev, mpa->revision);
err = -EPROTO;
goto err;
}
@ -938,13 +1057,66 @@ static void process_mpa_reply(struct c4iw_ep *ep, struct sk_buff *skb)
ep->mpa_attr.crc_enabled = (mpa->flags & MPA_CRC) | crc_enabled ? 1 : 0;
ep->mpa_attr.recv_marker_enabled = markers_enabled;
ep->mpa_attr.xmit_marker_enabled = mpa->flags & MPA_MARKERS ? 1 : 0;
ep->mpa_attr.version = mpa_rev;
ep->mpa_attr.p2p_type = peer2peer ? p2p_type :
FW_RI_INIT_P2PTYPE_DISABLED;
ep->mpa_attr.version = mpa->revision;
ep->mpa_attr.p2p_type = FW_RI_INIT_P2PTYPE_DISABLED;
if (mpa->revision == 2) {
ep->mpa_attr.enhanced_rdma_conn =
mpa->flags & MPA_ENHANCED_RDMA_CONN ? 1 : 0;
if (ep->mpa_attr.enhanced_rdma_conn) {
mpa_v2_params = (struct mpa_v2_conn_params *)
(ep->mpa_pkt + sizeof(*mpa));
resp_ird = ntohs(mpa_v2_params->ird) &
MPA_V2_IRD_ORD_MASK;
resp_ord = ntohs(mpa_v2_params->ord) &
MPA_V2_IRD_ORD_MASK;
/*
* This is a double-check. Ideally, below checks are
* not required since ird/ord stuff has been taken
* care of in c4iw_accept_cr
*/
if ((ep->ird < resp_ord) || (ep->ord > resp_ird)) {
err = -ENOMEM;
ep->ird = resp_ord;
ep->ord = resp_ird;
insuff_ird = 1;
}
if (ntohs(mpa_v2_params->ird) &
MPA_V2_PEER2PEER_MODEL) {
if (ntohs(mpa_v2_params->ord) &
MPA_V2_RDMA_WRITE_RTR)
ep->mpa_attr.p2p_type =
FW_RI_INIT_P2PTYPE_RDMA_WRITE;
else if (ntohs(mpa_v2_params->ord) &
MPA_V2_RDMA_READ_RTR)
ep->mpa_attr.p2p_type =
FW_RI_INIT_P2PTYPE_READ_REQ;
}
}
} else if (mpa->revision == 1)
if (peer2peer)
ep->mpa_attr.p2p_type = p2p_type;
PDBG("%s - crc_enabled=%d, recv_marker_enabled=%d, "
"xmit_marker_enabled=%d, version=%d\n", __func__,
ep->mpa_attr.crc_enabled, ep->mpa_attr.recv_marker_enabled,
ep->mpa_attr.xmit_marker_enabled, ep->mpa_attr.version);
"xmit_marker_enabled=%d, version=%d p2p_type=%d local-p2p_type = "
"%d\n", __func__, ep->mpa_attr.crc_enabled,
ep->mpa_attr.recv_marker_enabled,
ep->mpa_attr.xmit_marker_enabled, ep->mpa_attr.version,
ep->mpa_attr.p2p_type, p2p_type);
/*
* If responder's RTR does not match with that of initiator, assign
* FW_RI_INIT_P2PTYPE_DISABLED in mpa attributes so that RTR is not
* generated when moving QP to RTS state.
* A TERM message will be sent after QP has moved to RTS state
*/
if ((ep->mpa_attr.version == 2) &&
(ep->mpa_attr.p2p_type != p2p_type)) {
ep->mpa_attr.p2p_type = FW_RI_INIT_P2PTYPE_DISABLED;
rtr_mismatch = 1;
}
attrs.mpa_attr = ep->mpa_attr;
attrs.max_ird = ep->ird;
@ -961,6 +1133,39 @@ static void process_mpa_reply(struct c4iw_ep *ep, struct sk_buff *skb)
ep->com.qp, mask, &attrs, 1);
if (err)
goto err;
/*
* If responder's RTR requirement did not match with what initiator
* supports, generate TERM message
*/
if (rtr_mismatch) {
printk(KERN_ERR "%s: RTR mismatch, sending TERM\n", __func__);
attrs.layer_etype = LAYER_MPA | DDP_LLP;
attrs.ecode = MPA_NOMATCH_RTR;
attrs.next_state = C4IW_QP_STATE_TERMINATE;
err = c4iw_modify_qp(ep->com.qp->rhp, ep->com.qp,
C4IW_QP_ATTR_NEXT_STATE, &attrs, 0);
err = -ENOMEM;
goto out;
}
/*
* Generate TERM if initiator IRD is not sufficient for responder
* provided ORD. Currently, we do the same behaviour even when
* responder provided IRD is also not sufficient as regards to
* initiator ORD.
*/
if (insuff_ird) {
printk(KERN_ERR "%s: Insufficient IRD, sending TERM\n",
__func__);
attrs.layer_etype = LAYER_MPA | DDP_LLP;
attrs.ecode = MPA_INSUFF_IRD;
attrs.next_state = C4IW_QP_STATE_TERMINATE;
err = c4iw_modify_qp(ep->com.qp->rhp, ep->com.qp,
C4IW_QP_ATTR_NEXT_STATE, &attrs, 0);
err = -ENOMEM;
goto out;
}
goto out;
err:
state_set(&ep->com, ABORTING);
@ -973,6 +1178,7 @@ out:
static void process_mpa_request(struct c4iw_ep *ep, struct sk_buff *skb)
{
struct mpa_message *mpa;
struct mpa_v2_conn_params *mpa_v2_params;
u16 plen;
PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid);
@ -1013,7 +1219,9 @@ static void process_mpa_request(struct c4iw_ep *ep, struct sk_buff *skb)
/*
* Validate MPA Header.
*/
if (mpa->revision != mpa_rev) {
if (mpa->revision > mpa_rev) {
printk(KERN_ERR MOD "%s MPA version mismatch. Local = %d,"
" Received = %d\n", __func__, mpa_rev, mpa->revision);
abort_connection(ep, skb, GFP_KERNEL);
return;
}
@ -1056,9 +1264,37 @@ static void process_mpa_request(struct c4iw_ep *ep, struct sk_buff *skb)
ep->mpa_attr.crc_enabled = (mpa->flags & MPA_CRC) | crc_enabled ? 1 : 0;
ep->mpa_attr.recv_marker_enabled = markers_enabled;
ep->mpa_attr.xmit_marker_enabled = mpa->flags & MPA_MARKERS ? 1 : 0;
ep->mpa_attr.version = mpa_rev;
ep->mpa_attr.p2p_type = peer2peer ? p2p_type :
FW_RI_INIT_P2PTYPE_DISABLED;
ep->mpa_attr.version = mpa->revision;
if (mpa->revision == 1)
ep->tried_with_mpa_v1 = 1;
ep->mpa_attr.p2p_type = FW_RI_INIT_P2PTYPE_DISABLED;
if (mpa->revision == 2) {
ep->mpa_attr.enhanced_rdma_conn =
mpa->flags & MPA_ENHANCED_RDMA_CONN ? 1 : 0;
if (ep->mpa_attr.enhanced_rdma_conn) {
mpa_v2_params = (struct mpa_v2_conn_params *)
(ep->mpa_pkt + sizeof(*mpa));
ep->ird = ntohs(mpa_v2_params->ird) &
MPA_V2_IRD_ORD_MASK;
ep->ord = ntohs(mpa_v2_params->ord) &
MPA_V2_IRD_ORD_MASK;
if (ntohs(mpa_v2_params->ird) & MPA_V2_PEER2PEER_MODEL)
if (peer2peer) {
if (ntohs(mpa_v2_params->ord) &
MPA_V2_RDMA_WRITE_RTR)
ep->mpa_attr.p2p_type =
FW_RI_INIT_P2PTYPE_RDMA_WRITE;
else if (ntohs(mpa_v2_params->ord) &
MPA_V2_RDMA_READ_RTR)
ep->mpa_attr.p2p_type =
FW_RI_INIT_P2PTYPE_READ_REQ;
}
}
} else if (mpa->revision == 1)
if (peer2peer)
ep->mpa_attr.p2p_type = p2p_type;
PDBG("%s - crc_enabled=%d, recv_marker_enabled=%d, "
"xmit_marker_enabled=%d, version=%d p2p_type=%d\n", __func__,
ep->mpa_attr.crc_enabled, ep->mpa_attr.recv_marker_enabled,
@ -1550,6 +1786,112 @@ static int is_neg_adv_abort(unsigned int status)
status == CPL_ERR_PERSIST_NEG_ADVICE;
}
static int c4iw_reconnect(struct c4iw_ep *ep)
{
int err = 0;
struct rtable *rt;
struct net_device *pdev;
struct neighbour *neigh;
int step;
PDBG("%s qp %p cm_id %p\n", __func__, ep->com.qp, ep->com.cm_id);
init_timer(&ep->timer);
/*
* Allocate an active TID to initiate a TCP connection.
*/
ep->atid = cxgb4_alloc_atid(ep->com.dev->rdev.lldi.tids, ep);
if (ep->atid == -1) {
printk(KERN_ERR MOD "%s - cannot alloc atid.\n", __func__);
err = -ENOMEM;
goto fail2;
}
/* find a route */
rt = find_route(ep->com.dev,
ep->com.cm_id->local_addr.sin_addr.s_addr,
ep->com.cm_id->remote_addr.sin_addr.s_addr,
ep->com.cm_id->local_addr.sin_port,
ep->com.cm_id->remote_addr.sin_port, 0);
if (!rt) {
printk(KERN_ERR MOD "%s - cannot find route.\n", __func__);
err = -EHOSTUNREACH;
goto fail3;
}
ep->dst = &rt->dst;
neigh = dst_get_neighbour(ep->dst);
/* get a l2t entry */
if (neigh->dev->flags & IFF_LOOPBACK) {
PDBG("%s LOOPBACK\n", __func__);
pdev = ip_dev_find(&init_net,
ep->com.cm_id->remote_addr.sin_addr.s_addr);
ep->l2t = cxgb4_l2t_get(ep->com.dev->rdev.lldi.l2t,
neigh, pdev, 0);
ep->mtu = pdev->mtu;
ep->tx_chan = cxgb4_port_chan(pdev);
ep->smac_idx = (cxgb4_port_viid(pdev) & 0x7F) << 1;
step = ep->com.dev->rdev.lldi.ntxq /
ep->com.dev->rdev.lldi.nchan;
ep->txq_idx = cxgb4_port_idx(pdev) * step;
step = ep->com.dev->rdev.lldi.nrxq /
ep->com.dev->rdev.lldi.nchan;
ep->ctrlq_idx = cxgb4_port_idx(pdev);
ep->rss_qid = ep->com.dev->rdev.lldi.rxq_ids[
cxgb4_port_idx(pdev) * step];
dev_put(pdev);
} else {
ep->l2t = cxgb4_l2t_get(ep->com.dev->rdev.lldi.l2t,
neigh, neigh->dev, 0);
ep->mtu = dst_mtu(ep->dst);
ep->tx_chan = cxgb4_port_chan(neigh->dev);
ep->smac_idx = (cxgb4_port_viid(neigh->dev) & 0x7F) << 1;
step = ep->com.dev->rdev.lldi.ntxq /
ep->com.dev->rdev.lldi.nchan;
ep->txq_idx = cxgb4_port_idx(neigh->dev) * step;
ep->ctrlq_idx = cxgb4_port_idx(neigh->dev);
step = ep->com.dev->rdev.lldi.nrxq /
ep->com.dev->rdev.lldi.nchan;
ep->rss_qid = ep->com.dev->rdev.lldi.rxq_ids[
cxgb4_port_idx(neigh->dev) * step];
}
if (!ep->l2t) {
printk(KERN_ERR MOD "%s - cannot alloc l2e.\n", __func__);
err = -ENOMEM;
goto fail4;
}
PDBG("%s txq_idx %u tx_chan %u smac_idx %u rss_qid %u l2t_idx %u\n",
__func__, ep->txq_idx, ep->tx_chan, ep->smac_idx, ep->rss_qid,
ep->l2t->idx);
state_set(&ep->com, CONNECTING);
ep->tos = 0;
/* send connect request to rnic */
err = send_connect(ep);
if (!err)
goto out;
cxgb4_l2t_release(ep->l2t);
fail4:
dst_release(ep->dst);
fail3:
cxgb4_free_atid(ep->com.dev->rdev.lldi.tids, ep->atid);
fail2:
/*
* remember to send notification to upper layer.
* We are in here so the upper layer is not aware that this is
* re-connect attempt and so, upper layer is still waiting for
* response of 1st connect request.
*/
connect_reply_upcall(ep, -ECONNRESET);
c4iw_put_ep(&ep->com);
out:
return err;
}
static int peer_abort(struct c4iw_dev *dev, struct sk_buff *skb)
{
struct cpl_abort_req_rss *req = cplhdr(skb);
@ -1573,8 +1915,11 @@ static int peer_abort(struct c4iw_dev *dev, struct sk_buff *skb)
/*
* Wake up any threads in rdma_init() or rdma_fini().
* However, this is not needed if com state is just
* MPA_REQ_SENT
*/
c4iw_wake_up(&ep->com.wr_wait, -ECONNRESET);
if (ep->com.state != MPA_REQ_SENT)
c4iw_wake_up(&ep->com.wr_wait, -ECONNRESET);
mutex_lock(&ep->com.mutex);
switch (ep->com.state) {
@ -1585,7 +1930,21 @@ static int peer_abort(struct c4iw_dev *dev, struct sk_buff *skb)
break;
case MPA_REQ_SENT:
stop_ep_timer(ep);
connect_reply_upcall(ep, -ECONNRESET);
if (mpa_rev == 2 && ep->tried_with_mpa_v1)
connect_reply_upcall(ep, -ECONNRESET);
else {
/*
* we just don't send notification upwards because we
* want to retry with mpa_v1 without upper layers even
* knowing it.
*
* do some housekeeping so as to re-initiate the
* connection
*/
PDBG("%s: mpa_rev=%d. Retrying with mpav1\n", __func__,
mpa_rev);
ep->retry_with_mpa_v1 = 1;
}
break;
case MPA_REP_SENT:
break;
@ -1621,7 +1980,9 @@ static int peer_abort(struct c4iw_dev *dev, struct sk_buff *skb)
dst_confirm(ep->dst);
if (ep->com.state != ABORTING) {
__state_set(&ep->com, DEAD);
release = 1;
/* we don't release if we want to retry with mpa_v1 */
if (!ep->retry_with_mpa_v1)
release = 1;
}
mutex_unlock(&ep->com.mutex);
@ -1641,6 +2002,15 @@ static int peer_abort(struct c4iw_dev *dev, struct sk_buff *skb)
out:
if (release)
release_ep_resources(ep);
/* retry with mpa-v1 */
if (ep && ep->retry_with_mpa_v1) {
cxgb4_remove_tid(ep->com.dev->rdev.lldi.tids, 0, ep->hwtid);
dst_release(ep->dst);
cxgb4_l2t_release(ep->l2t);
c4iw_reconnect(ep);
}
return 0;
}
@ -1792,18 +2162,40 @@ int c4iw_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
goto err;
}
cm_id->add_ref(cm_id);
ep->com.cm_id = cm_id;
ep->com.qp = qp;
if (ep->mpa_attr.version == 2 && ep->mpa_attr.enhanced_rdma_conn) {
if (conn_param->ord > ep->ird) {
ep->ird = conn_param->ird;
ep->ord = conn_param->ord;
send_mpa_reject(ep, conn_param->private_data,
conn_param->private_data_len);
abort_connection(ep, NULL, GFP_KERNEL);
err = -ENOMEM;
goto err;
}
if (conn_param->ird > ep->ord) {
if (!ep->ord)
conn_param->ird = 1;
else {
abort_connection(ep, NULL, GFP_KERNEL);
err = -ENOMEM;
goto err;
}
}
}
ep->ird = conn_param->ird;
ep->ord = conn_param->ord;
if (peer2peer && ep->ird == 0)
ep->ird = 1;
if (ep->mpa_attr.version != 2)
if (peer2peer && ep->ird == 0)
ep->ird = 1;
PDBG("%s %d ird %d ord %d\n", __func__, __LINE__, ep->ird, ep->ord);
cm_id->add_ref(cm_id);
ep->com.cm_id = cm_id;
ep->com.qp = qp;
/* bind QP to EP and move to RTS */
attrs.mpa_attr = ep->mpa_attr;
attrs.max_ird = ep->ird;
@ -1944,6 +2336,8 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
ep->com.dev->rdev.lldi.nchan;
ep->rss_qid = ep->com.dev->rdev.lldi.rxq_ids[
cxgb4_port_idx(neigh->dev) * step];
ep->retry_with_mpa_v1 = 0;
ep->tried_with_mpa_v1 = 0;
}
if (!ep->l2t) {
printk(KERN_ERR MOD "%s - cannot alloc l2e.\n", __func__);
@ -2323,8 +2717,11 @@ static int peer_abort_intr(struct c4iw_dev *dev, struct sk_buff *skb)
/*
* Wake up any threads in rdma_init() or rdma_fini().
* However, this is not needed if com state is just
* MPA_REQ_SENT
*/
c4iw_wake_up(&ep->com.wr_wait, -ECONNRESET);
if (ep->com.state != MPA_REQ_SENT)
c4iw_wake_up(&ep->com.wr_wait, -ECONNRESET);
sched(dev, skb);
return 0;
}

3
drivers/infiniband/hw/cxgb4/cq.c
View File

@ -185,7 +185,7 @@ static void insert_recv_cqe(struct t4_wq *wq, struct t4_cq *cq)
V_CQE_OPCODE(FW_RI_SEND) |
V_CQE_TYPE(0) |
V_CQE_SWCQE(1) |
V_CQE_QPID(wq->rq.qid));
V_CQE_QPID(wq->sq.qid));
cqe.bits_type_ts = cpu_to_be64(V_CQE_GENBIT((u64)cq->gen));
cq->sw_queue[cq->sw_pidx] = cqe;
t4_swcq_produce(cq);
@ -818,6 +818,7 @@ struct ib_cq *c4iw_create_cq(struct ib_device *ibdev, int entries,
chp->cq.size--; /* status page */
chp->ibcq.cqe = entries - 2;
spin_lock_init(&chp->lock);
spin_lock_init(&chp->comp_handler_lock);
atomic_set(&chp->refcnt, 1);
init_waitqueue_head(&chp->wait);
ret = insert_handle(rhp, &rhp->cqidr, chp, chp->cq.cqid);

41
drivers/infiniband/hw/cxgb4/device.c
View File

@ -376,10 +376,8 @@ struct uld_ctx {
struct c4iw_dev *dev;
};
static void c4iw_remove(struct uld_ctx *ctx)
static void c4iw_dealloc(struct uld_ctx *ctx)
{
PDBG("%s c4iw_dev %p\n", __func__, ctx->dev);
c4iw_unregister_device(ctx->dev);
c4iw_rdev_close(&ctx->dev->rdev);
idr_destroy(&ctx->dev->cqidr);
idr_destroy(&ctx->dev->qpidr);
@ -389,11 +387,30 @@ static void c4iw_remove(struct uld_ctx *ctx)
ctx->dev = NULL;
}
static void c4iw_remove(struct uld_ctx *ctx)
{
PDBG("%s c4iw_dev %p\n", __func__, ctx->dev);
c4iw_unregister_device(ctx->dev);
c4iw_dealloc(ctx);
}
static int rdma_supported(const struct cxgb4_lld_info *infop)
{
return infop->vr->stag.size > 0 && infop->vr->pbl.size > 0 &&
infop->vr->rq.size > 0 && infop->vr->qp.size > 0 &&
infop->vr->cq.size > 0 && infop->vr->ocq.size > 0;
}
static struct c4iw_dev *c4iw_alloc(const struct cxgb4_lld_info *infop)
{
struct c4iw_dev *devp;
int ret;
if (!rdma_supported(infop)) {
printk(KERN_INFO MOD "%s: RDMA not supported on this device.\n",
pci_name(infop->pdev));
return ERR_PTR(-ENOSYS);
}
devp = (struct c4iw_dev *)ib_alloc_device(sizeof(*devp));
if (!devp) {
printk(KERN_ERR MOD "Cannot allocate ib device\n");
@ -414,7 +431,6 @@ static struct c4iw_dev *c4iw_alloc(const struct cxgb4_lld_info *infop)
ret = c4iw_rdev_open(&devp->rdev);
if (ret) {
mutex_unlock(&dev_mutex);
printk(KERN_ERR MOD "Unable to open CXIO rdev err %d\n", ret);
ib_dealloc_device(&devp->ibdev);
return ERR_PTR(ret);
@ -519,15 +535,24 @@ static int c4iw_uld_state_change(void *handle, enum cxgb4_state new_state)
case CXGB4_STATE_UP:
printk(KERN_INFO MOD "%s: Up\n", pci_name(ctx->lldi.pdev));
if (!ctx->dev) {
int ret = 0;
int ret;
ctx->dev = c4iw_alloc(&ctx->lldi);
if (!IS_ERR(ctx->dev))
ret = c4iw_register_device(ctx->dev);
if (IS_ERR(ctx->dev) || ret)
if (IS_ERR(ctx->dev)) {
printk(KERN_ERR MOD
"%s: initialization failed: %ld\n",
pci_name(ctx->lldi.pdev),
PTR_ERR(ctx->dev));
ctx->dev = NULL;
break;
}
ret = c4iw_register_device(ctx->dev);
if (ret) {
printk(KERN_ERR MOD
"%s: RDMA registration failed: %d\n",
pci_name(ctx->lldi.pdev), ret);
c4iw_dealloc(ctx);
}
}
break;
case CXGB4_STATE_DOWN:

10
drivers/infiniband/hw/cxgb4/ev.c
View File

@ -42,6 +42,7 @@ static void post_qp_event(struct c4iw_dev *dev, struct c4iw_cq *chp,
{
struct ib_event event;
struct c4iw_qp_attributes attrs;
unsigned long flag;
if ((qhp->attr.state == C4IW_QP_STATE_ERROR) ||
(qhp->attr.state == C4IW_QP_STATE_TERMINATE)) {
@ -72,7 +73,9 @@ static void post_qp_event(struct c4iw_dev *dev, struct c4iw_cq *chp,
if (qhp->ibqp.event_handler)
(*qhp->ibqp.event_handler)(&event, qhp->ibqp.qp_context);
spin_lock_irqsave(&chp->comp_handler_lock, flag);
(*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context);
spin_unlock_irqrestore(&chp->comp_handler_lock, flag);
}
void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe)
@ -183,11 +186,14 @@ out:
int c4iw_ev_handler(struct c4iw_dev *dev, u32 qid)
{
struct c4iw_cq *chp;
unsigned long flag;
chp = get_chp(dev, qid);
if (chp)
if (chp) {
spin_lock_irqsave(&chp->comp_handler_lock, flag);
(*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context);
else
spin_unlock_irqrestore(&chp->comp_handler_lock, flag);
} else
PDBG("%s unknown cqid 0x%x\n", __func__, qid);
return 0;
}

23
drivers/infiniband/hw/cxgb4/iw_cxgb4.h
View File

@ -309,6 +309,7 @@ struct c4iw_cq {
struct c4iw_dev *rhp;
struct t4_cq cq;
spinlock_t lock;
spinlock_t comp_handler_lock;
atomic_t refcnt;
wait_queue_head_t wait;
};
@ -323,6 +324,7 @@ struct c4iw_mpa_attributes {
u8 recv_marker_enabled;
u8 xmit_marker_enabled;
u8 crc_enabled;
u8 enhanced_rdma_conn;
u8 version;
u8 p2p_type;
};
@ -349,6 +351,8 @@ struct c4iw_qp_attributes {
u8 is_terminate_local;
struct c4iw_mpa_attributes mpa_attr;
struct c4iw_ep *llp_stream_handle;
u8 layer_etype;
u8 ecode;
};
struct c4iw_qp {
@ -501,11 +505,18 @@ enum c4iw_mmid_state {
#define MPA_KEY_REP "MPA ID Rep Frame"
#define MPA_MAX_PRIVATE_DATA 256
#define MPA_ENHANCED_RDMA_CONN 0x10
#define MPA_REJECT 0x20
#define MPA_CRC 0x40
#define MPA_MARKERS 0x80
#define MPA_FLAGS_MASK 0xE0
#define MPA_V2_PEER2PEER_MODEL 0x8000
#define MPA_V2_ZERO_LEN_FPDU_RTR 0x4000
#define MPA_V2_RDMA_WRITE_RTR 0x8000
#define MPA_V2_RDMA_READ_RTR 0x4000
#define MPA_V2_IRD_ORD_MASK 0x3FFF
#define c4iw_put_ep(ep) { \
PDBG("put_ep (via %s:%u) ep %p refcnt %d\n", __func__, __LINE__, \
ep, atomic_read(&((ep)->kref.refcount))); \
@ -528,6 +539,11 @@ struct mpa_message {
u8 private_data[0];
};
struct mpa_v2_conn_params {
__be16 ird;
__be16 ord;
};
struct terminate_message {
u8 layer_etype;
u8 ecode;
@ -580,7 +596,10 @@ enum c4iw_ddp_ecodes {
enum c4iw_mpa_ecodes {
MPA_CRC_ERR = 0x02,
MPA_MARKER_ERR = 0x03
MPA_MARKER_ERR = 0x03,
MPA_LOCAL_CATA = 0x05,
MPA_INSUFF_IRD = 0x06,
MPA_NOMATCH_RTR = 0x07,
};
enum c4iw_ep_state {
@ -651,6 +670,8 @@ struct c4iw_ep {
u16 txq_idx;
u16 ctrlq_idx;
u8 tos;
u8 retry_with_mpa_v1;
u8 tried_with_mpa_v1;
};
static inline struct c4iw_ep *to_ep(struct iw_cm_id *cm_id)

39
drivers/infiniband/hw/cxgb4/qp.c
View File

@ -917,7 +917,11 @@ static void post_terminate(struct c4iw_qp *qhp, struct t4_cqe *err_cqe,
wqe->u.terminate.type = FW_RI_TYPE_TERMINATE;
wqe->u.terminate.immdlen = cpu_to_be32(sizeof *term);
term = (struct terminate_message *)wqe->u.terminate.termmsg;
build_term_codes(err_cqe, &term->layer_etype, &term->ecode);
if (qhp->attr.layer_etype == (LAYER_MPA|DDP_LLP)) {
term->layer_etype = qhp->attr.layer_etype;
term->ecode = qhp->attr.ecode;
} else
build_term_codes(err_cqe, &term->layer_etype, &term->ecode);
c4iw_ofld_send(&qhp->rhp->rdev, skb);
}
@ -941,8 +945,11 @@ static void __flush_qp(struct c4iw_qp *qhp, struct c4iw_cq *rchp,
flushed = c4iw_flush_rq(&qhp->wq, &rchp->cq, count);
spin_unlock(&qhp->lock);
spin_unlock_irqrestore(&rchp->lock, flag);
if (flushed)
if (flushed) {
spin_lock_irqsave(&rchp->comp_handler_lock, flag);
(*rchp->ibcq.comp_handler)(&rchp->ibcq, rchp->ibcq.cq_context);
spin_unlock_irqrestore(&rchp->comp_handler_lock, flag);
}
/* locking hierarchy: cq lock first, then qp lock. */
spin_lock_irqsave(&schp->lock, flag);
@ -952,13 +959,17 @@ static void __flush_qp(struct c4iw_qp *qhp, struct c4iw_cq *rchp,
flushed = c4iw_flush_sq(&qhp->wq, &schp->cq, count);
spin_unlock(&qhp->lock);
spin_unlock_irqrestore(&schp->lock, flag);
if (flushed)
if (flushed) {
spin_lock_irqsave(&schp->comp_handler_lock, flag);
(*schp->ibcq.comp_handler)(&schp->ibcq, schp->ibcq.cq_context);
spin_unlock_irqrestore(&schp->comp_handler_lock, flag);
}
}
static void flush_qp(struct c4iw_qp *qhp)
{
struct c4iw_cq *rchp, *schp;
unsigned long flag;
rchp = get_chp(qhp->rhp, qhp->attr.rcq);
schp = get_chp(qhp->rhp, qhp->attr.scq);
@ -966,8 +977,16 @@ static void flush_qp(struct c4iw_qp *qhp)
if (qhp->ibqp.uobject) {
t4_set_wq_in_error(&qhp->wq);
t4_set_cq_in_error(&rchp->cq);
if (schp != rchp)
spin_lock_irqsave(&rchp->comp_handler_lock, flag);
(*rchp->ibcq.comp_handler)(&rchp->ibcq, rchp->ibcq.cq_context);
spin_unlock_irqrestore(&rchp->comp_handler_lock, flag);
if (schp != rchp) {
t4_set_cq_in_error(&schp->cq);
spin_lock_irqsave(&schp->comp_handler_lock, flag);
(*schp->ibcq.comp_handler)(&schp->ibcq,
schp->ibcq.cq_context);
spin_unlock_irqrestore(&schp->comp_handler_lock, flag);
}
return;
}
__flush_qp(qhp, rchp, schp);
@ -1012,6 +1031,7 @@ out:
static void build_rtr_msg(u8 p2p_type, struct fw_ri_init *init)
{
PDBG("%s p2p_type = %d\n", __func__, p2p_type);
memset(&init->u, 0, sizeof init->u);
switch (p2p_type) {
case FW_RI_INIT_P2PTYPE_RDMA_WRITE:
@ -1206,12 +1226,16 @@ int c4iw_modify_qp(struct c4iw_dev *rhp, struct c4iw_qp *qhp,
disconnect = 1;
c4iw_get_ep(&qhp->ep->com);
}
if (qhp->ibqp.uobject)
t4_set_wq_in_error(&qhp->wq);
ret = rdma_fini(rhp, qhp, ep);
if (ret)
goto err;
break;
case C4IW_QP_STATE_TERMINATE:
set_state(qhp, C4IW_QP_STATE_TERMINATE);
qhp->attr.layer_etype = attrs->layer_etype;
qhp->attr.ecode = attrs->ecode;
if (qhp->ibqp.uobject)
t4_set_wq_in_error(&qhp->wq);
ep = qhp->ep;
@ -1222,6 +1246,8 @@ int c4iw_modify_qp(struct c4iw_dev *rhp, struct c4iw_qp *qhp,
break;
case C4IW_QP_STATE_ERROR:
set_state(qhp, C4IW_QP_STATE_ERROR);
if (qhp->ibqp.uobject)
t4_set_wq_in_error(&qhp->wq);
if (!internal) {
abort = 1;
disconnect = 1;
@ -1334,7 +1360,10 @@ int c4iw_destroy_qp(struct ib_qp *ib_qp)
rhp = qhp->rhp;
attrs.next_state = C4IW_QP_STATE_ERROR;
c4iw_modify_qp(rhp, qhp, C4IW_QP_ATTR_NEXT_STATE, &attrs, 0);
if (qhp->attr.state == C4IW_QP_STATE_TERMINATE)
c4iw_modify_qp(rhp, qhp, C4IW_QP_ATTR_NEXT_STATE, &attrs, 1);
else
c4iw_modify_qp(rhp, qhp, C4IW_QP_ATTR_NEXT_STATE, &attrs, 0);
wait_event(qhp->wait, !qhp->ep);
remove_handle(rhp, &rhp->qpidr, qhp->wq.sq.qid);

4
drivers/infiniband/hw/ehca/ehca_eq.c
View File

@ -125,7 +125,7 @@ int ehca_create_eq(struct ehca_shca *shca,
tasklet_init(&eq->interrupt_task, ehca_tasklet_eq, (long)shca);
ret = ibmebus_request_irq(eq->ist, ehca_interrupt_eq,
IRQF_DISABLED, "ehca_eq",
0, "ehca_eq",
(void *)shca);
if (ret < 0)
ehca_err(ib_dev, "Can't map interrupt handler.");
@ -133,7 +133,7 @@ int ehca_create_eq(struct ehca_shca *shca,
tasklet_init(&eq->interrupt_task, ehca_tasklet_neq, (long)shca);
ret = ibmebus_request_irq(eq->ist, ehca_interrupt_neq,
IRQF_DISABLED, "ehca_neq",
0, "ehca_neq",
(void *)shca);
if (ret < 0)
ehca_err(ib_dev, "Can't map interrupt handler.");

3
drivers/infiniband/hw/ehca/ehca_qp.c
View File

@ -977,6 +977,9 @@ struct ib_srq *ehca_create_srq(struct ib_pd *pd,
struct hcp_modify_qp_control_block *mqpcb;
u64 hret, update_mask;
if (srq_init_attr->srq_type != IB_SRQT_BASIC)
return ERR_PTR(-ENOSYS);
/* For common attributes, internal_create_qp() takes its info
* out of qp_init_attr, so copy all common attrs there.
*/

1
drivers/infiniband/hw/ipath/ipath_init_chip.c
View File

@ -34,6 +34,7 @@
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/slab.h>
#include <linux/stat.h>
#include <linux/vmalloc.h>
#include "ipath_kernel.h"

5
drivers/infiniband/hw/ipath/ipath_srq.c
View File

@ -107,6 +107,11 @@ struct ib_srq *ipath_create_srq(struct ib_pd *ibpd,
u32 sz;
struct ib_srq *ret;
if (srq_init_attr->srq_type != IB_SRQT_BASIC) {
ret = ERR_PTR(-ENOSYS);
goto done;
}
if (srq_init_attr->attr.max_wr == 0) {
ret = ERR_PTR(-EINVAL);
goto done;

106
drivers/infiniband/hw/mlx4/main.c
View File

@ -128,6 +128,8 @@ static int mlx4_ib_query_device(struct ib_device *ibdev,
(dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) &&
(dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR))
props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC)
props->device_cap_flags |= IB_DEVICE_XRC;
props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) &
0xffffff;
@ -181,8 +183,12 @@ mlx4_ib_port_link_layer(struct ib_device *device, u8 port_num)
static int ib_link_query_port(struct ib_device *ibdev, u8 port,
struct ib_port_attr *props,
struct ib_smp *in_mad,
struct ib_smp *out_mad)
{
int ext_active_speed;
int err;
props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16));
props->lmc = out_mad->data[34] & 0x7;
props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18));
@ -203,6 +209,39 @@ static int ib_link_query_port(struct ib_device *ibdev, u8 port,
props->max_vl_num = out_mad->data[37] >> 4;
props->init_type_reply = out_mad->data[41] >> 4;
/* Check if extended speeds (EDR/FDR/...) are supported */
if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) {
ext_active_speed = out_mad->data[62] >> 4;
switch (ext_active_speed) {
case 1:
props->active_speed = 16; /* FDR */
break;
case 2:
props->active_speed = 32; /* EDR */
break;
}
}
/* If reported active speed is QDR, check if is FDR-10 */
if (props->active_speed == 4) {
if (to_mdev(ibdev)->dev->caps.ext_port_cap[port] &
MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO) {
init_query_mad(in_mad);
in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO;
in_mad->attr_mod = cpu_to_be32(port);
err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port,
NULL, NULL, in_mad, out_mad);
if (err)
return err;
/* Checking LinkSpeedActive for FDR-10 */
if (out_mad->data[15] & 0x1)
props->active_speed = 8;
}
}
return 0;
}
@ -227,7 +266,7 @@ static int eth_link_query_port(struct ib_device *ibdev, u8 port,
props->pkey_tbl_len = 1;
props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46));
props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48));
props->max_mtu = IB_MTU_2048;
props->max_mtu = IB_MTU_4096;
props->subnet_timeout = 0;
props->max_vl_num = out_mad->data[37] >> 4;
props->init_type_reply = 0;
@ -274,7 +313,7 @@ static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
goto out;
err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ?
ib_link_query_port(ibdev, port, props, out_mad) :
ib_link_query_port(ibdev, port, props, in_mad, out_mad) :
eth_link_query_port(ibdev, port, props, out_mad);
out:
@ -566,6 +605,57 @@ static int mlx4_ib_dealloc_pd(struct ib_pd *pd)
return 0;
}
static struct ib_xrcd *mlx4_ib_alloc_xrcd(struct ib_device *ibdev,
struct ib_ucontext *context,
struct ib_udata *udata)
{
struct mlx4_ib_xrcd *xrcd;
int err;
if (!(to_mdev(ibdev)->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC))
return ERR_PTR(-ENOSYS);
xrcd = kmalloc(sizeof *xrcd, GFP_KERNEL);
if (!xrcd)
return ERR_PTR(-ENOMEM);
err = mlx4_xrcd_alloc(to_mdev(ibdev)->dev, &xrcd->xrcdn);
if (err)
goto err1;
xrcd->pd = ib_alloc_pd(ibdev);
if (IS_ERR(xrcd->pd)) {
err = PTR_ERR(xrcd->pd);
goto err2;
}
xrcd->cq = ib_create_cq(ibdev, NULL, NULL, xrcd, 1, 0);
if (IS_ERR(xrcd->cq)) {
err = PTR_ERR(xrcd->cq);
goto err3;
}
return &xrcd->ibxrcd;
err3:
ib_dealloc_pd(xrcd->pd);
err2:
mlx4_xrcd_free(to_mdev(ibdev)->dev, xrcd->xrcdn);
err1:
kfree(xrcd);
return ERR_PTR(err);
}
static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd)
{
ib_destroy_cq(to_mxrcd(xrcd)->cq);
ib_dealloc_pd(to_mxrcd(xrcd)->pd);
mlx4_xrcd_free(to_mdev(xrcd->device)->dev, to_mxrcd(xrcd)->xrcdn);
kfree(xrcd);
return 0;
}
static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid)
{
struct mlx4_ib_qp *mqp = to_mqp(ibqp);
@ -1044,7 +1134,9 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
(1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
(1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
(1ull << IB_USER_VERBS_CMD_QUERY_SRQ) |
(1ull << IB_USER_VERBS_CMD_DESTROY_SRQ);
(1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) |
(1ull << IB_USER_VERBS_CMD_CREATE_XSRQ) |
(1ull << IB_USER_VERBS_CMD_OPEN_QP);
ibdev->ib_dev.query_device = mlx4_ib_query_device;
ibdev->ib_dev.query_port = mlx4_ib_query_port;
@ -1093,6 +1185,14 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr;
ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc;
if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) {
ibdev->ib_dev.alloc_xrcd = mlx4_ib_alloc_xrcd;
ibdev->ib_dev.dealloc_xrcd = mlx4_ib_dealloc_xrcd;
ibdev->ib_dev.uverbs_cmd_mask |=
(1ull << IB_USER_VERBS_CMD_OPEN_XRCD) |
(1ull << IB_USER_VERBS_CMD_CLOSE_XRCD);
}
spin_lock_init(&iboe->lock);
if (init_node_data(ibdev))

13
drivers/infiniband/hw/mlx4/mlx4_ib.h
View File

@ -56,6 +56,13 @@ struct mlx4_ib_pd {
u32 pdn;
};
struct mlx4_ib_xrcd {
struct ib_xrcd ibxrcd;
u32 xrcdn;
struct ib_pd *pd;
struct ib_cq *cq;
};
struct mlx4_ib_cq_buf {
struct mlx4_buf buf;
struct mlx4_mtt mtt;
@ -138,6 +145,7 @@ struct mlx4_ib_qp {
struct mlx4_mtt mtt;
int buf_size;
struct mutex mutex;
u16 xrcdn;
u32 flags;
u8 port;
u8 alt_port;
@ -211,6 +219,11 @@ static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
return container_of(ibpd, struct mlx4_ib_pd, ibpd);
}
static inline struct mlx4_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd)
{
return container_of(ibxrcd, struct mlx4_ib_xrcd, ibxrcd);
}
static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
{
return container_of(ibcq, struct mlx4_ib_cq, ibcq);

131
drivers/infiniband/hw/mlx4/qp.c
View File

@ -302,15 +302,14 @@ static int send_wqe_overhead(enum ib_qp_type type, u32 flags)
}
static int set_rq_size(struct mlx4_ib_dev *dev, struct ib_qp_cap *cap,
int is_user, int has_srq, struct mlx4_ib_qp *qp)
int is_user, int has_rq, struct mlx4_ib_qp *qp)
{
/* Sanity check RQ size before proceeding */
if (cap->max_recv_wr > dev->dev->caps.max_wqes ||
cap->max_recv_sge > dev->dev->caps.max_rq_sg)
return -EINVAL;
if (has_srq) {
/* QPs attached to an SRQ should have no RQ */
if (!has_rq) {
if (cap->max_recv_wr)
return -EINVAL;
@ -463,6 +462,14 @@ static int set_user_sq_size(struct mlx4_ib_dev *dev,
return 0;
}
static int qp_has_rq(struct ib_qp_init_attr *attr)
{
if (attr->qp_type == IB_QPT_XRC_INI || attr->qp_type == IB_QPT_XRC_TGT)
return 0;
return !attr->srq;
}
static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
struct ib_qp_init_attr *init_attr,
struct ib_udata *udata, int sqpn, struct mlx4_ib_qp *qp)
@ -479,7 +486,7 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR)
qp->sq_signal_bits = cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE);
err = set_rq_size(dev, &init_attr->cap, !!pd->uobject, !!init_attr->srq, qp);
err = set_rq_size(dev, &init_attr->cap, !!pd->uobject, qp_has_rq(init_attr), qp);
if (err)
goto err;
@ -513,7 +520,7 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
if (err)
goto err_mtt;
if (!init_attr->srq) {
if (qp_has_rq(init_attr)) {
err = mlx4_ib_db_map_user(to_mucontext(pd->uobject->context),
ucmd.db_addr, &qp->db);
if (err)
@ -532,7 +539,7 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
if (err)
goto err;
if (!init_attr->srq) {
if (qp_has_rq(init_attr)) {
err = mlx4_db_alloc(dev->dev, &qp->db, 0);
if (err)
goto err;
@ -575,6 +582,9 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
if (err)
goto err_qpn;
if (init_attr->qp_type == IB_QPT_XRC_TGT)
qp->mqp.qpn |= (1 << 23);
/*
* Hardware wants QPN written in big-endian order (after
* shifting) for send doorbell. Precompute this value to save
@ -592,9 +602,8 @@ err_qpn:
err_wrid:
if (pd->uobject) {
if (!init_attr->srq)
mlx4_ib_db_unmap_user(to_mucontext(pd->uobject->context),
&qp->db);
if (qp_has_rq(init_attr))
mlx4_ib_db_unmap_user(to_mucontext(pd->uobject->context), &qp->db);
} else {
kfree(qp->sq.wrid);
kfree(qp->rq.wrid);
@ -610,7 +619,7 @@ err_buf:
mlx4_buf_free(dev->dev, qp->buf_size, &qp->buf);
err_db:
if (!pd->uobject && !init_attr->srq)
if (!pd->uobject && qp_has_rq(init_attr))
mlx4_db_free(dev->dev, &qp->db);
err:
@ -671,6 +680,33 @@ static void del_gid_entries(struct mlx4_ib_qp *qp)
}
}
static struct mlx4_ib_pd *get_pd(struct mlx4_ib_qp *qp)
{
if (qp->ibqp.qp_type == IB_QPT_XRC_TGT)
return to_mpd(to_mxrcd(qp->ibqp.xrcd)->pd);
else
return to_mpd(qp->ibqp.pd);
}
static void get_cqs(struct mlx4_ib_qp *qp,
struct mlx4_ib_cq **send_cq, struct mlx4_ib_cq **recv_cq)
{
switch (qp->ibqp.qp_type) {
case IB_QPT_XRC_TGT:
*send_cq = to_mcq(to_mxrcd(qp->ibqp.xrcd)->cq);
*recv_cq = *send_cq;
break;
case IB_QPT_XRC_INI:
*send_cq = to_mcq(qp->ibqp.send_cq);
*recv_cq = *send_cq;
break;
default:
*send_cq = to_mcq(qp->ibqp.send_cq);
*recv_cq = to_mcq(qp->ibqp.recv_cq);
break;
}
}
static void destroy_qp_common(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp,
int is_user)
{
@ -682,8 +718,7 @@ static void destroy_qp_common(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp,
printk(KERN_WARNING "mlx4_ib: modify QP %06x to RESET failed.\n",
qp->mqp.qpn);
send_cq = to_mcq(qp->ibqp.send_cq);
recv_cq = to_mcq(qp->ibqp.recv_cq);
get_cqs(qp, &send_cq, &recv_cq);
mlx4_ib_lock_cqs(send_cq, recv_cq);
@ -706,7 +741,7 @@ static void destroy_qp_common(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp,
mlx4_mtt_cleanup(dev->dev, &qp->mtt);
if (is_user) {
if (!qp->ibqp.srq)
if (qp->rq.wqe_cnt)
mlx4_ib_db_unmap_user(to_mucontext(qp->ibqp.uobject->context),
&qp->db);
ib_umem_release(qp->umem);
@ -714,7 +749,7 @@ static void destroy_qp_common(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp,
kfree(qp->sq.wrid);
kfree(qp->rq.wrid);
mlx4_buf_free(dev->dev, qp->buf_size, &qp->buf);
if (!qp->ibqp.srq)
if (qp->rq.wqe_cnt)
mlx4_db_free(dev->dev, &qp->db);
}
@ -725,10 +760,10 @@ struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
struct ib_qp_init_attr *init_attr,
struct ib_udata *udata)
{
struct mlx4_ib_dev *dev = to_mdev(pd->device);
struct mlx4_ib_sqp *sqp;
struct mlx4_ib_qp *qp;
int err;
u16 xrcdn = 0;
/*
* We only support LSO and multicast loopback blocking, and
@ -739,10 +774,20 @@ struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
return ERR_PTR(-EINVAL);
if (init_attr->create_flags &&
(pd->uobject || init_attr->qp_type != IB_QPT_UD))
(udata || init_attr->qp_type != IB_QPT_UD))
return ERR_PTR(-EINVAL);
switch (init_attr->qp_type) {
case IB_QPT_XRC_TGT:
pd = to_mxrcd(init_attr->xrcd)->pd;
xrcdn = to_mxrcd(init_attr->xrcd)->xrcdn;
init_attr->send_cq = to_mxrcd(init_attr->xrcd)->cq;
/* fall through */
case IB_QPT_XRC_INI:
if (!(to_mdev(pd->device)->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC))
return ERR_PTR(-ENOSYS);
init_attr->recv_cq = init_attr->send_cq;
/* fall through */
case IB_QPT_RC:
case IB_QPT_UC:
case IB_QPT_UD:
@ -751,13 +796,14 @@ struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
if (!qp)
return ERR_PTR(-ENOMEM);
err = create_qp_common(dev, pd, init_attr, udata, 0, qp);
err = create_qp_common(to_mdev(pd->device), pd, init_attr, udata, 0, qp);
if (err) {
kfree(qp);
return ERR_PTR(err);
}
qp->ibqp.qp_num = qp->mqp.qpn;
qp->xrcdn = xrcdn;
break;
}
@ -765,7 +811,7 @@ struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
case IB_QPT_GSI:
{
/* Userspace is not allowed to create special QPs: */
if (pd->uobject)
if (udata)
return ERR_PTR(-EINVAL);
sqp = kzalloc(sizeof *sqp, GFP_KERNEL);
@ -774,8 +820,8 @@ struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
qp = &sqp->qp;
err = create_qp_common(dev, pd, init_attr, udata,
dev->dev->caps.sqp_start +
err = create_qp_common(to_mdev(pd->device), pd, init_attr, udata,
to_mdev(pd->device)->dev->caps.sqp_start +
(init_attr->qp_type == IB_QPT_SMI ? 0 : 2) +
init_attr->port_num - 1,
qp);
@ -801,11 +847,13 @@ int mlx4_ib_destroy_qp(struct ib_qp *qp)
{
struct mlx4_ib_dev *dev = to_mdev(qp->device);
struct mlx4_ib_qp *mqp = to_mqp(qp);
struct mlx4_ib_pd *pd;
if (is_qp0(dev, mqp))
mlx4_CLOSE_PORT(dev->dev, mqp->port);
destroy_qp_common(dev, mqp, !!qp->pd->uobject);
pd = get_pd(mqp);
destroy_qp_common(dev, mqp, !!pd->ibpd.uobject);
if (is_sqp(dev, mqp))
kfree(to_msqp(mqp));
@ -821,6 +869,8 @@ static int to_mlx4_st(enum ib_qp_type type)
case IB_QPT_RC: return MLX4_QP_ST_RC;
case IB_QPT_UC: return MLX4_QP_ST_UC;
case IB_QPT_UD: return MLX4_QP_ST_UD;
case IB_QPT_XRC_INI:
case IB_QPT_XRC_TGT: return MLX4_QP_ST_XRC;
case IB_QPT_SMI:
case IB_QPT_GSI: return MLX4_QP_ST_MLX;
default: return -1;
@ -959,6 +1009,8 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
{
struct mlx4_ib_dev *dev = to_mdev(ibqp->device);
struct mlx4_ib_qp *qp = to_mqp(ibqp);
struct mlx4_ib_pd *pd;
struct mlx4_ib_cq *send_cq, *recv_cq;
struct mlx4_qp_context *context;
enum mlx4_qp_optpar optpar = 0;
int sqd_event;
@ -1014,8 +1066,10 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
context->sq_size_stride = ilog2(qp->sq.wqe_cnt) << 3;
context->sq_size_stride |= qp->sq.wqe_shift - 4;
if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT)
if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) {
context->sq_size_stride |= !!qp->sq_no_prefetch << 7;
context->xrcd = cpu_to_be32((u32) qp->xrcdn);
}
if (qp->ibqp.uobject)
context->usr_page = cpu_to_be32(to_mucontext(ibqp->uobject->context)->uar.index);
@ -1079,8 +1133,12 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
optpar |= MLX4_QP_OPTPAR_ALT_ADDR_PATH;
}
context->pd = cpu_to_be32(to_mpd(ibqp->pd)->pdn);
context->params1 = cpu_to_be32(MLX4_IB_ACK_REQ_FREQ << 28);
pd = get_pd(qp);
get_cqs(qp, &send_cq, &recv_cq);
context->pd = cpu_to_be32(pd->pdn);
context->cqn_send = cpu_to_be32(send_cq->mcq.cqn);
context->cqn_recv = cpu_to_be32(recv_cq->mcq.cqn);
context->params1 = cpu_to_be32(MLX4_IB_ACK_REQ_FREQ << 28);
/* Set "fast registration enabled" for all kernel QPs */
if (!qp->ibqp.uobject)
@ -1106,8 +1164,6 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
if (attr_mask & IB_QP_SQ_PSN)
context->next_send_psn = cpu_to_be32(attr->sq_psn);
context->cqn_send = cpu_to_be32(to_mcq(ibqp->send_cq)->mcq.cqn);
if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) {
if (attr->max_dest_rd_atomic)
context->params2 |=
@ -1130,8 +1186,6 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
if (attr_mask & IB_QP_RQ_PSN)
context->rnr_nextrecvpsn |= cpu_to_be32(attr->rq_psn);
context->cqn_recv = cpu_to_be32(to_mcq(ibqp->recv_cq)->mcq.cqn);
if (attr_mask & IB_QP_QKEY) {
context->qkey = cpu_to_be32(attr->qkey);
optpar |= MLX4_QP_OPTPAR_Q_KEY;
@ -1140,7 +1194,7 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
if (ibqp->srq)
context->srqn = cpu_to_be32(1 << 24 | to_msrq(ibqp->srq)->msrq.srqn);
if (!ibqp->srq && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT)
if (qp->rq.wqe_cnt && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT)
context->db_rec_addr = cpu_to_be64(qp->db.dma);
if (cur_state == IB_QPS_INIT &&
@ -1225,17 +1279,17 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
* entries and reinitialize the QP.
*/
if (new_state == IB_QPS_RESET && !ibqp->uobject) {
mlx4_ib_cq_clean(to_mcq(ibqp->recv_cq), qp->mqp.qpn,
mlx4_ib_cq_clean(recv_cq, qp->mqp.qpn,
ibqp->srq ? to_msrq(ibqp->srq): NULL);
if (ibqp->send_cq != ibqp->recv_cq)
mlx4_ib_cq_clean(to_mcq(ibqp->send_cq), qp->mqp.qpn, NULL);
if (send_cq != recv_cq)
mlx4_ib_cq_clean(send_cq, qp->mqp.qpn, NULL);
qp->rq.head = 0;
qp->rq.tail = 0;
qp->sq.head = 0;
qp->sq.tail = 0;
qp->sq_next_wqe = 0;
if (!ibqp->srq)
if (qp->rq.wqe_cnt)
*qp->db.db = 0;
}
@ -1547,14 +1601,13 @@ static void set_masked_atomic_seg(struct mlx4_wqe_masked_atomic_seg *aseg,
}
static void set_datagram_seg(struct mlx4_wqe_datagram_seg *dseg,
struct ib_send_wr *wr, __be16 *vlan)
struct ib_send_wr *wr)
{
memcpy(dseg->av, &to_mah(wr->wr.ud.ah)->av, sizeof (struct mlx4_av));
dseg->dqpn = cpu_to_be32(wr->wr.ud.remote_qpn);
dseg->qkey = cpu_to_be32(wr->wr.ud.remote_qkey);
dseg->vlan = to_mah(wr->wr.ud.ah)->av.eth.vlan;
memcpy(dseg->mac, to_mah(wr->wr.ud.ah)->av.eth.mac, 6);
*vlan = dseg->vlan;
}
static void set_mlx_icrc_seg(void *dseg)
@ -1657,7 +1710,6 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
__be32 uninitialized_var(lso_hdr_sz);
__be32 blh;
int i;
__be16 vlan = cpu_to_be16(0xffff);
spin_lock_irqsave(&qp->sq.lock, flags);
@ -1761,7 +1813,7 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
break;
case IB_QPT_UD:
set_datagram_seg(wqe, wr, &vlan);
set_datagram_seg(wqe, wr);
wqe += sizeof (struct mlx4_wqe_datagram_seg);
size += sizeof (struct mlx4_wqe_datagram_seg) / 16;
@ -1824,11 +1876,6 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
ctrl->fence_size = (wr->send_flags & IB_SEND_FENCE ?
MLX4_WQE_CTRL_FENCE : 0) | size;
if (be16_to_cpu(vlan) < 0x1000) {
ctrl->ins_vlan = 1 << 6;
ctrl->vlan_tag = vlan;
}
/*
* Make sure descriptor is fully written before
* setting ownership bit (because HW can start

10
drivers/infiniband/hw/mlx4/srq.c
View File

@ -76,6 +76,8 @@ struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
struct mlx4_ib_srq *srq;
struct mlx4_wqe_srq_next_seg *next;
struct mlx4_wqe_data_seg *scatter;
u32 cqn;
u16 xrcdn;
int desc_size;
int buf_size;
int err;
@ -174,12 +176,18 @@ struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
}
}
err = mlx4_srq_alloc(dev->dev, to_mpd(pd)->pdn, &srq->mtt,
cqn = (init_attr->srq_type == IB_SRQT_XRC) ?
to_mcq(init_attr->ext.xrc.cq)->mcq.cqn : 0;
xrcdn = (init_attr->srq_type == IB_SRQT_XRC) ?
to_mxrcd(init_attr->ext.xrc.xrcd)->xrcdn :
(u16) dev->dev->caps.reserved_xrcds;
err = mlx4_srq_alloc(dev->dev, to_mpd(pd)->pdn, cqn, xrcdn, &srq->mtt,
srq->db.dma, &srq->msrq);
if (err)
goto err_wrid;
srq->msrq.event = mlx4_ib_srq_event;
srq->ibsrq.ext.xrc.srq_num = srq->msrq.srqn;
if (pd->uobject)
if (ib_copy_to_udata(udata, &srq->msrq.srqn, sizeof (__u32))) {

3
drivers/infiniband/hw/mthca/mthca_provider.c
View File

@ -438,6 +438,9 @@ static struct ib_srq *mthca_create_srq(struct ib_pd *pd,
struct mthca_srq *srq;
int err;
if (init_attr->srq_type != IB_SRQT_BASIC)
return ERR_PTR(-ENOSYS);
srq = kmalloc(sizeof *srq, GFP_KERNEL);
if (!srq)
return ERR_PTR(-ENOMEM);

2
drivers/infiniband/hw/nes/Makefile
View File

@ -1,3 +1,3 @@
obj-$(CONFIG_INFINIBAND_NES) += iw_nes.o
iw_nes-objs := nes.o nes_hw.o nes_nic.o nes_utils.o nes_verbs.o nes_cm.o
iw_nes-objs := nes.o nes_hw.o nes_nic.o nes_utils.o nes_verbs.o nes_cm.o nes_mgt.o

8
drivers/infiniband/hw/nes/nes.c
View File

@ -84,7 +84,7 @@ module_param(send_first, int, 0644);
MODULE_PARM_DESC(send_first, "Send RDMA Message First on Active Connection");
unsigned int nes_drv_opt = 0;
unsigned int nes_drv_opt = NES_DRV_OPT_DISABLE_INT_MOD | NES_DRV_OPT_ENABLE_PAU;
module_param(nes_drv_opt, int, 0644);
MODULE_PARM_DESC(nes_drv_opt, "Driver option parameters");
@ -130,9 +130,6 @@ static struct notifier_block nes_net_notifier = {
.notifier_call = nes_net_event
};
/**
* nes_inetaddr_event
*/
@ -321,6 +318,9 @@ void nes_rem_ref(struct ib_qp *ibqp)
}
if (atomic_dec_and_test(&nesqp->refcount)) {
if (nesqp->pau_mode)
nes_destroy_pau_qp(nesdev, nesqp);
/* Destroy the QP */
cqp_request = nes_get_cqp_request(nesdev);
if (cqp_request == NULL) {

17
drivers/infiniband/hw/nes/nes.h
View File

@ -102,6 +102,7 @@
#define NES_DRV_OPT_NO_INLINE_DATA 0x00000080
#define NES_DRV_OPT_DISABLE_INT_MOD 0x00000100
#define NES_DRV_OPT_DISABLE_VIRT_WQ 0x00000200
#define NES_DRV_OPT_ENABLE_PAU 0x00000400
#define NES_AEQ_EVENT_TIMEOUT 2500
#define NES_DISCONNECT_EVENT_TIMEOUT 2000
@ -128,6 +129,7 @@
#define NES_DBG_IW_RX 0x00020000
#define NES_DBG_IW_TX 0x00040000
#define NES_DBG_SHUTDOWN 0x00080000
#define NES_DBG_PAU 0x00100000
#define NES_DBG_RSVD1 0x10000000
#define NES_DBG_RSVD2 0x20000000
#define NES_DBG_RSVD3 0x40000000
@ -162,6 +164,7 @@ do { \
#include "nes_context.h"
#include "nes_user.h"
#include "nes_cm.h"
#include "nes_mgt.h"
extern int max_mtu;
#define max_frame_len (max_mtu+ETH_HLEN)
@ -202,6 +205,8 @@ extern atomic_t cm_nodes_created;
extern atomic_t cm_nodes_destroyed;
extern atomic_t cm_accel_dropped_pkts;
extern atomic_t cm_resets_recvd;
extern atomic_t pau_qps_created;
extern atomic_t pau_qps_destroyed;
extern u32 int_mod_timer_init;
extern u32 int_mod_cq_depth_256;
@ -273,6 +278,14 @@ struct nes_device {
u8 link_recheck;
};
/* Receive skb private area - must fit in skb->cb area */
struct nes_rskb_cb {
u64 busaddr;
u32 maplen;
u32 seqnum;
u8 *data_start;
struct nes_qp *nesqp;
};
static inline __le32 get_crc_value(struct nes_v4_quad *nes_quad)
{
@ -305,8 +318,8 @@ set_wqe_32bit_value(__le32 *wqe_words, u32 index, u32 value)
static inline void
nes_fill_init_cqp_wqe(struct nes_hw_cqp_wqe *cqp_wqe, struct nes_device *nesdev)
{
set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_COMP_CTX_LOW_IDX,
(u64)((unsigned long) &nesdev->cqp));
cqp_wqe->wqe_words[NES_CQP_WQE_COMP_CTX_LOW_IDX] = 0;
cqp_wqe->wqe_words[NES_CQP_WQE_COMP_CTX_HIGH_IDX] = 0;
cqp_wqe->wqe_words[NES_CQP_WQE_COMP_SCRATCH_LOW_IDX] = 0;
cqp_wqe->wqe_words[NES_CQP_WQE_COMP_SCRATCH_HIGH_IDX] = 0;
cqp_wqe->wqe_words[NES_CQP_STAG_WQE_PBL_BLK_COUNT_IDX] = 0;

1121
drivers/infiniband/hw/nes/nes_cm.c
View File

File diff suppressed because it is too large Load Diff

75
drivers/infiniband/hw/nes/nes_cm.h
View File

@ -48,7 +48,16 @@
#define IETF_MPA_KEY_SIZE 16
#define IETF_MPA_VERSION 1
#define IETF_MAX_PRIV_DATA_LEN 512
#define IETF_MPA_FRAME_SIZE 20
#define IETF_MPA_FRAME_SIZE 20
#define IETF_RTR_MSG_SIZE 4
#define IETF_MPA_V2_FLAG 0x10
/* IETF RTR MSG Fields */
#define IETF_PEER_TO_PEER 0x8000
#define IETF_FLPDU_ZERO_LEN 0x4000
#define IETF_RDMA0_WRITE 0x8000
#define IETF_RDMA0_READ 0x4000
#define IETF_NO_IRD_ORD 0x3FFF
enum ietf_mpa_flags {
IETF_MPA_FLAGS_MARKERS = 0x80, /* receive Markers */
@ -56,7 +65,7 @@ enum ietf_mpa_flags {
IETF_MPA_FLAGS_REJECT = 0x20, /* Reject */
};
struct ietf_mpa_frame {
struct ietf_mpa_v1 {
u8 key[IETF_MPA_KEY_SIZE];
u8 flags;
u8 rev;
@ -66,6 +75,20 @@ struct ietf_mpa_frame {
#define ietf_mpa_req_resp_frame ietf_mpa_frame
struct ietf_rtr_msg {
__be16 ctrl_ird;
__be16 ctrl_ord;
};
struct ietf_mpa_v2 {
u8 key[IETF_MPA_KEY_SIZE];
u8 flags;
u8 rev;
__be16 priv_data_len;
struct ietf_rtr_msg rtr_msg;
u8 priv_data[0];
};
struct nes_v4_quad {
u32 rsvd0;
__le32 DstIpAdrIndex; /* Only most significant 5 bits are valid */
@ -171,8 +194,7 @@ struct nes_timer_entry {
#define NES_CM_DEF_SEQ2 0x18ed5740
#define NES_CM_DEF_LOCAL_ID2 0xb807
#define MAX_CM_BUFFER (IETF_MPA_FRAME_SIZE + IETF_MAX_PRIV_DATA_LEN)
#define MAX_CM_BUFFER (IETF_MPA_FRAME_SIZE + IETF_RTR_MSG_SIZE + IETF_MAX_PRIV_DATA_LEN)
typedef u32 nes_addr_t;
@ -204,6 +226,21 @@ enum nes_cm_node_state {
NES_CM_STATE_CLOSED
};
enum mpa_frame_version {
IETF_MPA_V1 = 1,
IETF_MPA_V2 = 2
};
enum mpa_frame_key {
MPA_KEY_REQUEST,
MPA_KEY_REPLY
};
enum send_rdma0 {
SEND_RDMA_READ_ZERO = 1,
SEND_RDMA_WRITE_ZERO = 2
};
enum nes_tcpip_pkt_type {
NES_PKT_TYPE_UNKNOWN,
NES_PKT_TYPE_SYN,
@ -245,9 +282,9 @@ struct nes_cm_tcp_context {
enum nes_cm_listener_state {
NES_CM_LISTENER_PASSIVE_STATE=1,
NES_CM_LISTENER_ACTIVE_STATE=2,
NES_CM_LISTENER_EITHER_STATE=3
NES_CM_LISTENER_PASSIVE_STATE = 1,
NES_CM_LISTENER_ACTIVE_STATE = 2,
NES_CM_LISTENER_EITHER_STATE = 3
};
struct nes_cm_listener {
@ -283,16 +320,20 @@ struct nes_cm_node {
struct nes_cm_node *loopbackpartner;
struct nes_timer_entry *send_entry;
struct nes_timer_entry *send_entry;
struct nes_timer_entry *recv_entry;
spinlock_t retrans_list_lock;
struct nes_timer_entry *recv_entry;
enum send_rdma0 send_rdma0_op;
int send_write0;
union {
struct ietf_mpa_frame mpa_frame;
u8 mpa_frame_buf[MAX_CM_BUFFER];
struct ietf_mpa_v1 mpa_frame;
struct ietf_mpa_v2 mpa_v2_frame;
u8 mpa_frame_buf[MAX_CM_BUFFER];
};
enum mpa_frame_version mpa_frame_rev;
u16 ird_size;
u16 ord_size;
u16 mpa_frame_size;
struct iw_cm_id *cm_id;
struct list_head list;
@ -399,10 +440,8 @@ struct nes_cm_ops {
struct nes_vnic *, u16, void *,
struct nes_cm_info *);
int (*close)(struct nes_cm_core *, struct nes_cm_node *);
int (*accept)(struct nes_cm_core *, struct ietf_mpa_frame *,
struct nes_cm_node *);
int (*reject)(struct nes_cm_core *, struct ietf_mpa_frame *,
struct nes_cm_node *);
int (*accept)(struct nes_cm_core *, struct nes_cm_node *);
int (*reject)(struct nes_cm_core *, struct nes_cm_node *);
int (*recv_pkt)(struct nes_cm_core *, struct nes_vnic *,
struct sk_buff *);
int (*destroy_cm_core)(struct nes_cm_core *);
@ -422,5 +461,7 @@ int nes_destroy_listen(struct iw_cm_id *);
int nes_cm_recv(struct sk_buff *, struct net_device *);
int nes_cm_start(void);
int nes_cm_stop(void);
int nes_add_ref_cm_node(struct nes_cm_node *cm_node);
int nes_rem_ref_cm_node(struct nes_cm_node *cm_node);
#endif /* NES_CM_H */

99
drivers/infiniband/hw/nes/nes_hw.c
View File

@ -110,6 +110,14 @@ static unsigned char *nes_tcp_state_str[] = {
};
#endif
static inline void print_ip(struct nes_cm_node *cm_node)
{
unsigned char *rem_addr;
if (cm_node) {
rem_addr = (unsigned char *)&cm_node->rem_addr;
printk(KERN_ERR PFX "Remote IP addr: %pI4\n", rem_addr);
}
}
/**
* nes_nic_init_timer_defaults
@ -1555,6 +1563,7 @@ static void nes_replenish_nic_rq(struct nes_vnic *nesvnic)
struct nes_hw_nic_rq_wqe *nic_rqe;
struct nes_hw_nic *nesnic;
struct nes_device *nesdev;
struct nes_rskb_cb *cb;
u32 rx_wqes_posted = 0;
nesnic = &nesvnic->nic;
@ -1580,6 +1589,9 @@ static void nes_replenish_nic_rq(struct nes_vnic *nesvnic)
bus_address = pci_map_single(nesdev->pcidev,
skb->data, nesvnic->max_frame_size, PCI_DMA_FROMDEVICE);
cb = (struct nes_rskb_cb *)&skb->cb[0];
cb->busaddr = bus_address;
cb->maplen = nesvnic->max_frame_size;
nic_rqe = &nesnic->rq_vbase[nesvnic->nic.rq_head];
nic_rqe->wqe_words[NES_NIC_RQ_WQE_LENGTH_1_0_IDX] =
@ -1669,6 +1681,7 @@ int nes_init_nic_qp(struct nes_device *nesdev, struct net_device *netdev)
u32 cqp_head;
u32 counter;
u32 wqe_count;
struct nes_rskb_cb *cb;
u8 jumbomode=0;
/* Allocate fragment, SQ, RQ, and CQ; Reuse CEQ based on the PCI function */
@ -1845,6 +1858,9 @@ int nes_init_nic_qp(struct nes_device *nesdev, struct net_device *netdev)
pmem = pci_map_single(nesdev->pcidev, skb->data,
nesvnic->max_frame_size, PCI_DMA_FROMDEVICE);
cb = (struct nes_rskb_cb *)&skb->cb[0];
cb->busaddr = pmem;
cb->maplen = nesvnic->max_frame_size;
nic_rqe = &nesvnic->nic.rq_vbase[counter];
nic_rqe->wqe_words[NES_NIC_RQ_WQE_LENGTH_1_0_IDX] = cpu_to_le32(nesvnic->max_frame_size);
@ -1873,6 +1889,13 @@ int nes_init_nic_qp(struct nes_device *nesdev, struct net_device *netdev)
jumbomode = 1;
nes_nic_init_timer_defaults(nesdev, jumbomode);
}
if ((nesdev->nesadapter->allow_unaligned_fpdus) &&
(nes_init_mgt_qp(nesdev, netdev, nesvnic))) {
nes_debug(NES_DBG_INIT, "%s: Out of memory for pau nic\n", netdev->name);
nes_destroy_nic_qp(nesvnic);
return -ENOMEM;
}
nesvnic->lro_mgr.max_aggr = nes_lro_max_aggr;
nesvnic->lro_mgr.max_desc = NES_MAX_LRO_DESCRIPTORS;
nesvnic->lro_mgr.lro_arr = nesvnic->lro_desc;
@ -1895,28 +1918,29 @@ void nes_destroy_nic_qp(struct nes_vnic *nesvnic)
struct nes_device *nesdev = nesvnic->nesdev;
struct nes_hw_cqp_wqe *cqp_wqe;
struct nes_hw_nic_sq_wqe *nic_sqe;
struct nes_hw_nic_rq_wqe *nic_rqe;
__le16 *wqe_fragment_length;
u16 wqe_fragment_index;
u64 wqe_frag;
u32 cqp_head;
u32 wqm_cfg0;
unsigned long flags;
struct sk_buff *rx_skb;
struct nes_rskb_cb *cb;
int ret;
if (nesdev->nesadapter->allow_unaligned_fpdus)
nes_destroy_mgt(nesvnic);
/* clear wqe stall before destroying NIC QP */
wqm_cfg0 = nes_read_indexed(nesdev, NES_IDX_WQM_CONFIG0);
nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG0, wqm_cfg0 & 0xFFFF7FFF);
/* Free remaining NIC receive buffers */
while (nesvnic->nic.rq_head != nesvnic->nic.rq_tail) {
nic_rqe = &nesvnic->nic.rq_vbase[nesvnic->nic.rq_tail];
wqe_frag = (u64)le32_to_cpu(
nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_LOW_IDX]);
wqe_frag |= ((u64)le32_to_cpu(
nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_HIGH_IDX]))<<32;
pci_unmap_single(nesdev->pcidev, (dma_addr_t)wqe_frag,
nesvnic->max_frame_size, PCI_DMA_FROMDEVICE);
rx_skb = nesvnic->nic.rx_skb[nesvnic->nic.rq_tail];
cb = (struct nes_rskb_cb *)&rx_skb->cb[0];
pci_unmap_single(nesdev->pcidev, cb->busaddr, cb->maplen,
PCI_DMA_FROMDEVICE);
dev_kfree_skb(nesvnic->nic.rx_skb[nesvnic->nic.rq_tail++]);
nesvnic->nic.rq_tail &= (nesvnic->nic.rq_size - 1);
}
@ -2775,6 +2799,7 @@ void nes_nic_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *cq)
struct nes_hw_nic_sq_wqe *nic_sqe;
struct sk_buff *skb;
struct sk_buff *rx_skb;
struct nes_rskb_cb *cb;
__le16 *wqe_fragment_length;
u32 head;
u32 cq_size;
@ -2859,6 +2884,8 @@ void nes_nic_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *cq)
bus_address += ((u64)le32_to_cpu(nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_HIGH_IDX])) << 32;
pci_unmap_single(nesdev->pcidev, bus_address,
nesvnic->max_frame_size, PCI_DMA_FROMDEVICE);
cb = (struct nes_rskb_cb *)&rx_skb->cb[0];
cb->busaddr = 0;
/* rx_skb->tail = rx_skb->data + rx_pkt_size; */
/* rx_skb->len = rx_pkt_size; */
rx_skb->len = 0; /* TODO: see if this is necessary */
@ -2983,6 +3010,7 @@ skip_rx_indicate0:
}
/**
* nes_cqp_ce_handler
*/
@ -2997,6 +3025,8 @@ static void nes_cqp_ce_handler(struct nes_device *nesdev, struct nes_hw_cq *cq)
u32 cq_size;
u32 cqe_count=0;
u32 error_code;
u32 opcode;
u32 ctx_index;
/* u32 counter; */
head = cq->cq_head;
@ -3007,12 +3037,9 @@ static void nes_cqp_ce_handler(struct nes_device *nesdev, struct nes_hw_cq *cq)
/* nes_debug(NES_DBG_CQP, "head=%u cqe_words=%08X\n", head,
le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX])); */
if (le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX]) & NES_CQE_VALID) {
u64temp = (((u64)(le32_to_cpu(cq->cq_vbase[head].
cqe_words[NES_CQE_COMP_COMP_CTX_HIGH_IDX]))) << 32) |
((u64)(le32_to_cpu(cq->cq_vbase[head].
cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX])));
cqp = *((struct nes_hw_cqp **)&u64temp);
opcode = le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX]);
if (opcode & NES_CQE_VALID) {
cqp = &nesdev->cqp;
error_code = le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_CQE_ERROR_CODE_IDX]);
if (error_code) {
@ -3021,15 +3048,14 @@ static void nes_cqp_ce_handler(struct nes_device *nesdev, struct nes_hw_cq *cq)
le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX])&0x3f,
(u16)(error_code >> 16),
(u16)error_code);
nes_debug(NES_DBG_CQP, "cqp: qp_id=%u, sq_head=%u, sq_tail=%u\n",
cqp->qp_id, cqp->sq_head, cqp->sq_tail);
}
u64temp = (((u64)(le32_to_cpu(nesdev->cqp.sq_vbase[cqp->sq_tail].
wqe_words[NES_CQP_WQE_COMP_SCRATCH_HIGH_IDX]))) << 32) |
((u64)(le32_to_cpu(nesdev->cqp.sq_vbase[cqp->sq_tail].
wqe_words[NES_CQP_WQE_COMP_SCRATCH_LOW_IDX])));
cqp_request = *((struct nes_cqp_request **)&u64temp);
u64temp = (((u64)(le32_to_cpu(cq->cq_vbase[head].
cqe_words[NES_CQE_COMP_COMP_CTX_HIGH_IDX]))) << 32) |
((u64)(le32_to_cpu(cq->cq_vbase[head].
cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX])));
cqp_request = (struct nes_cqp_request *)(unsigned long)u64temp;
if (cqp_request) {
if (cqp_request->waiting) {
/* nes_debug(NES_DBG_CQP, "%s: Waking up requestor\n"); */
@ -3075,9 +3101,15 @@ static void nes_cqp_ce_handler(struct nes_device *nesdev, struct nes_hw_cq *cq)
cqp_wqe = &nesdev->cqp.sq_vbase[head];
memcpy(cqp_wqe, &cqp_request->cqp_wqe, sizeof(*cqp_wqe));
barrier();
cqp_wqe->wqe_words[NES_CQP_WQE_COMP_SCRATCH_LOW_IDX] =
opcode = cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX];
if ((opcode & NES_CQP_OPCODE_MASK) == NES_CQP_DOWNLOAD_SEGMENT)
ctx_index = NES_CQP_WQE_DL_COMP_CTX_LOW_IDX;
else
ctx_index = NES_CQP_WQE_COMP_CTX_LOW_IDX;
cqp_wqe->wqe_words[ctx_index] =
cpu_to_le32((u32)((unsigned long)cqp_request));
cqp_wqe->wqe_words[NES_CQP_WQE_COMP_SCRATCH_HIGH_IDX] =
cqp_wqe->wqe_words[ctx_index + 1] =
cpu_to_le32((u32)(upper_32_bits((unsigned long)cqp_request)));
nes_debug(NES_DBG_CQP, "CQP request %p (opcode 0x%02X) put on CQPs SQ wqe%u.\n",
cqp_request, le32_to_cpu(cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX])&0x3f, head);
@ -3093,7 +3125,6 @@ static void nes_cqp_ce_handler(struct nes_device *nesdev, struct nes_hw_cq *cq)
nes_read32(nesdev->regs+NES_CQE_ALLOC);
}
static u8 *locate_mpa(u8 *pkt, u32 aeq_info)
{
if (aeq_info & NES_AEQE_Q2_DATA_ETHERNET) {
@ -3553,9 +3584,9 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
aeqe_cq_id = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]);
if (aeq_info & NES_AEQE_QP) {
if ((!nes_is_resource_allocated(nesadapter, nesadapter->allocated_qps,
aeqe_cq_id)) ||
(atomic_read(&nesqp->close_timer_started)))
if (!nes_is_resource_allocated(nesadapter,
nesadapter->allocated_qps,
aeqe_cq_id))
return;
}
@ -3566,8 +3597,7 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
if (atomic_inc_return(&nesqp->close_timer_started) == 1) {
if ((tcp_state == NES_AEQE_TCP_STATE_CLOSE_WAIT) &&
(nesqp->ibqp_state == IB_QPS_RTS) &&
((nesadapter->eeprom_version >> 16) != NES_A0)) {
(nesqp->ibqp_state == IB_QPS_RTS)) {
spin_lock_irqsave(&nesqp->lock, flags);
nesqp->hw_iwarp_state = iwarp_state;
nesqp->hw_tcp_state = tcp_state;
@ -3594,9 +3624,10 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
return;
}
spin_lock_irqsave(&nesqp->lock, flags);
nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_CLOSING;
nesqp->hw_iwarp_state = iwarp_state;
nesqp->hw_tcp_state = tcp_state;
nesqp->last_aeq = async_event_id;
spin_unlock_irqrestore(&nesqp->lock, flags);
nes_hw_modify_qp(nesdev, nesqp, NES_CQP_QP_IWARP_STATE_CLOSING, 0, 0);
nes_cm_disconn(nesqp);
break;
@ -3694,7 +3725,9 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
case NES_AEQE_AEID_ROE_INVALID_RDMA_WRITE_OR_READ_RESP:
printk(KERN_ERR PFX "QP[%u] async_event_id=0x%04X IB_EVENT_QP_FATAL\n",
nesqp->hwqp.qp_id, async_event_id);
nes_terminate_connection(nesdev, nesqp, aeqe, IB_EVENT_QP_FATAL);
print_ip(nesqp->cm_node);
if (!atomic_read(&nesqp->close_timer_started))
nes_terminate_connection(nesdev, nesqp, aeqe, IB_EVENT_QP_FATAL);
break;
case NES_AEQE_AEID_CQ_OPERATION_ERROR:

35
drivers/infiniband/hw/nes/nes_hw.h
View File

@ -47,6 +47,11 @@
#define NES_MULTICAST_PF_MAX 8
#define NES_A0 3
#define NES_ENABLE_PAU 0x07000001
#define NES_DISABLE_PAU 0x07000000
#define NES_PAU_COUNTER 10
#define NES_CQP_OPCODE_MASK 0x3f
enum pci_regs {
NES_INT_STAT = 0x0000,
NES_INT_MASK = 0x0004,
@ -73,8 +78,10 @@ enum indexed_regs {
NES_IDX_QP_CONTROL = 0x0040,
NES_IDX_FLM_CONTROL = 0x0080,
NES_IDX_INT_CPU_STATUS = 0x00a0,
NES_IDX_GPR_TRIGGER = 0x00bc,
NES_IDX_GPIO_CONTROL = 0x00f0,
NES_IDX_GPIO_DATA = 0x00f4,
NES_IDX_GPR2 = 0x010c,
NES_IDX_TCP_CONFIG0 = 0x01e4,
NES_IDX_TCP_TIMER_CONFIG = 0x01ec,
NES_IDX_TCP_NOW = 0x01f0,
@ -202,6 +209,7 @@ enum nes_cqp_opcodes {
NES_CQP_REGISTER_SHARED_STAG = 0x0c,
NES_CQP_DEALLOCATE_STAG = 0x0d,
NES_CQP_MANAGE_ARP_CACHE = 0x0f,
NES_CQP_DOWNLOAD_SEGMENT = 0x10,
NES_CQP_SUSPEND_QPS = 0x11,
NES_CQP_UPLOAD_CONTEXT = 0x13,
NES_CQP_CREATE_CEQ = 0x16,
@ -210,7 +218,8 @@ enum nes_cqp_opcodes {
NES_CQP_DESTROY_AEQ = 0x1b,
NES_CQP_LMI_ACCESS = 0x20,
NES_CQP_FLUSH_WQES = 0x22,
NES_CQP_MANAGE_APBVT = 0x23
NES_CQP_MANAGE_APBVT = 0x23,
NES_CQP_MANAGE_QUAD_HASH = 0x25
};
enum nes_cqp_wqe_word_idx {
@ -222,6 +231,14 @@ enum nes_cqp_wqe_word_idx {
NES_CQP_WQE_COMP_SCRATCH_HIGH_IDX = 5,
};
enum nes_cqp_wqe_word_download_idx { /* format differs from other cqp ops */
NES_CQP_WQE_DL_OPCODE_IDX = 0,
NES_CQP_WQE_DL_COMP_CTX_LOW_IDX = 1,
NES_CQP_WQE_DL_COMP_CTX_HIGH_IDX = 2,
NES_CQP_WQE_DL_LENGTH_0_TOTAL_IDX = 3
/* For index values 4-15 use NES_NIC_SQ_WQE_ values */
};
enum nes_cqp_cq_wqeword_idx {
NES_CQP_CQ_WQE_PBL_LOW_IDX = 6,
NES_CQP_CQ_WQE_PBL_HIGH_IDX = 7,
@ -242,6 +259,7 @@ enum nes_cqp_stag_wqeword_idx {
NES_CQP_STAG_WQE_PBL_LEN_IDX = 14
};
#define NES_CQP_OP_LOGICAL_PORT_SHIFT 26
#define NES_CQP_OP_IWARP_STATE_SHIFT 28
#define NES_CQP_OP_TERMLEN_SHIFT 28
@ -599,6 +617,7 @@ enum nes_nic_sq_wqe_bits {
enum nes_nic_cqe_word_idx {
NES_NIC_CQE_ACCQP_ID_IDX = 0,
NES_NIC_CQE_HASH_RCVNXT = 1,
NES_NIC_CQE_TAG_PKT_TYPE_IDX = 2,
NES_NIC_CQE_MISC_IDX = 3,
};
@ -1005,6 +1024,11 @@ struct nes_arp_entry {
#define NES_NIC_CQ_DOWNWARD_TREND 16
#define NES_PFT_SIZE 48
#define NES_MGT_WQ_COUNT 32
#define NES_MGT_CTX_SIZE ((NES_NIC_CTX_RQ_SIZE_32) | (NES_NIC_CTX_SQ_SIZE_32))
#define NES_MGT_QP_OFFSET 36
#define NES_MGT_QP_COUNT 4
struct nes_hw_tune_timer {
/* u16 cq_count; */
u16 threshold_low;
@ -1118,6 +1142,7 @@ struct nes_adapter {
u32 et_rate_sample_interval;
u32 timer_int_limit;
u32 wqm_quanta;
u8 allow_unaligned_fpdus;
/* Adapter base MAC address */
u32 mac_addr_low;
@ -1251,6 +1276,14 @@ struct nes_vnic {
enum ib_event_type delayed_event;
enum ib_event_type last_dispatched_event;
spinlock_t port_ibevent_lock;
u32 mgt_mem_size;
void *mgt_vbase;
dma_addr_t mgt_pbase;
struct nes_vnic_mgt *mgtvnic[NES_MGT_QP_COUNT];
struct task_struct *mgt_thread;
wait_queue_head_t mgt_wait_queue;
struct sk_buff_head mgt_skb_list;
};
struct nes_ib_device {

1162
drivers/infiniband/hw/nes/nes_mgt.c Normal file
View File

File diff suppressed because it is too large Load Diff

97
drivers/infiniband/hw/nes/nes_mgt.h Normal file
View File

@ -0,0 +1,97 @@
/*
* Copyright (c) 2010 Intel-NE, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __NES_MGT_H
#define __NES_MGT_H
#define MPA_FRAMING 6 /* length is 2 bytes, crc is 4 bytes */
int nes_init_mgt_qp(struct nes_device *nesdev, struct net_device *netdev, struct nes_vnic *nesvnic);
void nes_queue_mgt_skbs(struct sk_buff *skb, struct nes_vnic *nesvnic, struct nes_qp *nesqp);
void nes_destroy_mgt(struct nes_vnic *nesvnic);
void nes_destroy_pau_qp(struct nes_device *nesdev, struct nes_qp *nesqp);
struct nes_hw_mgt {
struct nes_hw_nic_rq_wqe *rq_vbase; /* virtual address of rq */
dma_addr_t rq_pbase; /* PCI memory for host rings */
struct sk_buff *rx_skb[NES_NIC_WQ_SIZE];
u16 qp_id;
u16 sq_head;
u16 rq_head;
u16 rq_tail;
u16 rq_size;
u8 replenishing_rq;
u8 reserved;
spinlock_t rq_lock;
};
struct nes_vnic_mgt {
struct nes_vnic *nesvnic;
struct nes_hw_mgt mgt;
struct nes_hw_nic_cq mgt_cq;
atomic_t rx_skbs_needed;
struct timer_list rq_wqes_timer;
atomic_t rx_skb_timer_running;
};
#define MAX_FPDU_FRAGS 4
struct pau_fpdu_frag {
struct sk_buff *skb;
u64 physaddr;
u32 frag_len;
bool cmplt;
};
struct pau_fpdu_info {
struct nes_qp *nesqp;
struct nes_cqp_request *cqp_request;
void *hdr_vbase;
dma_addr_t hdr_pbase;
int hdr_len;
u16 data_len;
u16 frag_cnt;
struct pau_fpdu_frag frags[MAX_FPDU_FRAGS];
};
enum pau_qh_state {
PAU_DEL_QH,
PAU_ADD_LB_QH,
PAU_READY
};
struct pau_qh_chg {
struct nes_device *nesdev;
struct nes_vnic *nesvnic;
struct nes_qp *nesqp;
};
#endif /* __NES_MGT_H */

4
drivers/infiniband/hw/nes/nes_nic.c
View File

@ -1090,6 +1090,8 @@ static const char nes_ethtool_stringset[][ETH_GSTRING_LEN] = {
"LRO aggregated",
"LRO flushed",
"LRO no_desc",
"PAU CreateQPs",
"PAU DestroyQPs",
};
#define NES_ETHTOOL_STAT_COUNT ARRAY_SIZE(nes_ethtool_stringset)
@ -1305,6 +1307,8 @@ static void nes_netdev_get_ethtool_stats(struct net_device *netdev,
target_stat_values[++index] = nesvnic->lro_mgr.stats.aggregated;
target_stat_values[++index] = nesvnic->lro_mgr.stats.flushed;
target_stat_values[++index] = nesvnic->lro_mgr.stats.no_desc;
target_stat_values[++index] = atomic_read(&pau_qps_created);
target_stat_values[++index] = atomic_read(&pau_qps_destroyed);
}
/**

53
drivers/infiniband/hw/nes/nes_utils.c
View File

@ -51,13 +51,34 @@
#include "nes.h"
static u16 nes_read16_eeprom(void __iomem *addr, u16 offset);
u32 mh_detected;
u32 mh_pauses_sent;
u32 nes_set_pau(struct nes_device *nesdev)
{
u32 ret = 0;
u32 counter;
nes_write_indexed(nesdev, NES_IDX_GPR2, NES_ENABLE_PAU);
nes_write_indexed(nesdev, NES_IDX_GPR_TRIGGER, 1);
for (counter = 0; counter < NES_PAU_COUNTER; counter++) {
udelay(30);
if (!nes_read_indexed(nesdev, NES_IDX_GPR2)) {
printk(KERN_INFO PFX "PAU is supported.\n");
break;
}
nes_write_indexed(nesdev, NES_IDX_GPR_TRIGGER, 1);
}
if (counter == NES_PAU_COUNTER) {
printk(KERN_INFO PFX "PAU is not supported.\n");
return -EPERM;
}
return ret;
}
/**
* nes_read_eeprom_values -
*/
@ -187,6 +208,11 @@ int nes_read_eeprom_values(struct nes_device *nesdev, struct nes_adapter *nesada
if (((major_ver == 3) && (minor_ver >= 16)) || (major_ver > 3))
nesadapter->send_term_ok = 1;
if (nes_drv_opt & NES_DRV_OPT_ENABLE_PAU) {
if (!nes_set_pau(nesdev))
nesadapter->allow_unaligned_fpdus = 1;
}
nesadapter->firmware_version = (((u32)(u8)(eeprom_data>>8)) << 16) +
(u32)((u8)eeprom_data);
@ -594,6 +620,7 @@ void nes_put_cqp_request(struct nes_device *nesdev,
nes_free_cqp_request(nesdev, cqp_request);
}
/**
* nes_post_cqp_request
*/
@ -604,6 +631,8 @@ void nes_post_cqp_request(struct nes_device *nesdev,
unsigned long flags;
u32 cqp_head;
u64 u64temp;
u32 opcode;
int ctx_index = NES_CQP_WQE_COMP_CTX_LOW_IDX;
spin_lock_irqsave(&nesdev->cqp.lock, flags);
@ -614,17 +643,20 @@ void nes_post_cqp_request(struct nes_device *nesdev,
nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
memcpy(cqp_wqe, &cqp_request->cqp_wqe, sizeof(*cqp_wqe));
opcode = le32_to_cpu(cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX]);
if ((opcode & NES_CQP_OPCODE_MASK) == NES_CQP_DOWNLOAD_SEGMENT)
ctx_index = NES_CQP_WQE_DL_COMP_CTX_LOW_IDX;
barrier();
u64temp = (unsigned long)cqp_request;
set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_COMP_SCRATCH_LOW_IDX,
u64temp);
set_wqe_64bit_value(cqp_wqe->wqe_words, ctx_index, u64temp);
nes_debug(NES_DBG_CQP, "CQP request (opcode 0x%02X), line 1 = 0x%08X put on CQPs SQ,"
" request = %p, cqp_head = %u, cqp_tail = %u, cqp_size = %u,"
" waiting = %d, refcount = %d.\n",
le32_to_cpu(cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX])&0x3f,
le32_to_cpu(cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX]), cqp_request,
nesdev->cqp.sq_head, nesdev->cqp.sq_tail, nesdev->cqp.sq_size,
cqp_request->waiting, atomic_read(&cqp_request->refcount));
" request = %p, cqp_head = %u, cqp_tail = %u, cqp_size = %u,"
" waiting = %d, refcount = %d.\n",
opcode & NES_CQP_OPCODE_MASK,
le32_to_cpu(cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX]), cqp_request,
nesdev->cqp.sq_head, nesdev->cqp.sq_tail, nesdev->cqp.sq_size,
cqp_request->waiting, atomic_read(&cqp_request->refcount));
barrier();
/* Ring doorbell (1 WQEs) */
@ -645,7 +677,6 @@ void nes_post_cqp_request(struct nes_device *nesdev,
return;
}
/**
* nes_arp_table
*/

8
drivers/infiniband/hw/nes/nes_verbs.c
View File

@ -1458,7 +1458,7 @@ static int nes_destroy_qp(struct ib_qp *ibqp)
struct ib_qp_attr attr;
struct iw_cm_id *cm_id;
struct iw_cm_event cm_event;
int ret;
int ret = 0;
atomic_inc(&sw_qps_destroyed);
nesqp->destroyed = 1;
@ -1511,7 +1511,6 @@ static int nes_destroy_qp(struct ib_qp *ibqp)
if ((nesqp->nesrcq) && (nesqp->nesrcq != nesqp->nesscq))
nes_clean_cq(nesqp, nesqp->nesrcq);
}
nes_rem_ref(&nesqp->ibqp);
return 0;
}
@ -2338,8 +2337,10 @@ static struct ib_mr *nes_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
skip_pages = ((u32)region->offset) >> 12;
if (ib_copy_from_udata(&req, udata, sizeof(req)))
if (ib_copy_from_udata(&req, udata, sizeof(req))) {
ib_umem_release(region);
return ERR_PTR(-EFAULT);
}
nes_debug(NES_DBG_MR, "Memory Registration type = %08X.\n", req.reg_type);
switch (req.reg_type) {
@ -2631,6 +2632,7 @@ static struct ib_mr *nes_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
return &nesmr->ibmr;
}
ib_umem_release(region);
return ERR_PTR(-ENOSYS);
}

12
drivers/infiniband/hw/nes/nes_verbs.h
View File

@ -139,7 +139,8 @@ struct nes_qp {
struct nes_cq *nesrcq;
struct nes_pd *nespd;
void *cm_node; /* handle of the node this QP is associated with */
struct ietf_mpa_frame *ietf_frame;
void *ietf_frame;
u8 ietf_frame_size;
dma_addr_t ietf_frame_pbase;
struct ib_mr *lsmm_mr;
struct nes_hw_qp hwqp;
@ -154,6 +155,7 @@ struct nes_qp {
u32 mmap_sq_db_index;
u32 mmap_rq_db_index;
spinlock_t lock;
spinlock_t pau_lock;
struct nes_qp_context *nesqp_context;
dma_addr_t nesqp_context_pbase;
void *pbl_vbase;
@ -161,6 +163,8 @@ struct nes_qp {
struct page *page;
struct timer_list terminate_timer;
enum ib_event_type terminate_eventtype;
struct sk_buff_head pau_list;
u32 pau_rcv_nxt;
u16 active_conn:1;
u16 skip_lsmm:1;
u16 user_mode:1;
@ -168,7 +172,8 @@ struct nes_qp {
u16 flush_issued:1;
u16 destroyed:1;
u16 sig_all:1;
u16 rsvd:9;
u16 pau_mode:1;
u16 rsvd:8;
u16 private_data_len;
u16 term_sq_flush_code;
u16 term_rq_flush_code;
@ -176,5 +181,8 @@ struct nes_qp {
u8 hw_tcp_state;
u8 term_flags;
u8 sq_kmapped;
u8 pau_busy;
u8 pau_pending;
u8 pau_state;
};
#endif /* NES_VERBS_H */

15
drivers/infiniband/hw/qib/qib.h
View File

@ -171,7 +171,9 @@ struct qib_ctxtdata {
/* how many alloc_pages() chunks in rcvegrbuf_pages */
u32 rcvegrbuf_chunks;
/* how many egrbufs per chunk */
u32 rcvegrbufs_perchunk;
u16 rcvegrbufs_perchunk;
/* ilog2 of above */
u16 rcvegrbufs_perchunk_shift;
/* order for rcvegrbuf_pages */
size_t rcvegrbuf_size;
/* rcvhdrq size (for freeing) */
@ -221,6 +223,9 @@ struct qib_ctxtdata {
/* ctxt rcvhdrq head offset */
u32 head;
u32 pkt_count;
/* lookaside fields */
struct qib_qp *lookaside_qp;
u32 lookaside_qpn;
/* QPs waiting for context processing */
struct list_head qp_wait_list;
};
@ -807,6 +812,10 @@ struct qib_devdata {
* supports, less gives more pio bufs/ctxt, etc.
*/
u32 cfgctxts;
/*
* number of ctxts available for PSM open
*/
u32 freectxts;
/*
* hint that we should update pioavailshadow before
@ -936,7 +945,9 @@ struct qib_devdata {
/* chip address space used by 4k pio buffers */
u32 align4k;
/* size of each rcvegrbuffer */
u32 rcvegrbufsize;
u16 rcvegrbufsize;
/* log2 of above */
u16 rcvegrbufsize_shift;
/* localbus width (1, 2,4,8,16,32) from config space */
u32 lbus_width;
/* localbus speed in MHz */

20
drivers/infiniband/hw/qib/qib_driver.c
View File

@ -279,10 +279,10 @@ bail:
*/
static inline void *qib_get_egrbuf(const struct qib_ctxtdata *rcd, u32 etail)
{
const u32 chunk = etail / rcd->rcvegrbufs_perchunk;
const u32 idx = etail % rcd->rcvegrbufs_perchunk;
const u32 chunk = etail >> rcd->rcvegrbufs_perchunk_shift;
const u32 idx = etail & ((u32)rcd->rcvegrbufs_perchunk - 1);
return rcd->rcvegrbuf[chunk] + idx * rcd->dd->rcvegrbufsize;
return rcd->rcvegrbuf[chunk] + (idx << rcd->dd->rcvegrbufsize_shift);
}
/*
@ -310,7 +310,6 @@ static u32 qib_rcv_hdrerr(struct qib_ctxtdata *rcd, struct qib_pportdata *ppd,
u32 opcode;
u32 psn;
int diff;
unsigned long flags;
/* Sanity check packet */
if (tlen < 24)
@ -365,7 +364,6 @@ static u32 qib_rcv_hdrerr(struct qib_ctxtdata *rcd, struct qib_pportdata *ppd,
switch (qp->ibqp.qp_type) {
case IB_QPT_RC:
spin_lock_irqsave(&qp->s_lock, flags);
ruc_res =
qib_ruc_check_hdr(
ibp, hdr,
@ -373,11 +371,8 @@ static u32 qib_rcv_hdrerr(struct qib_ctxtdata *rcd, struct qib_pportdata *ppd,
qp,
be32_to_cpu(ohdr->bth[0]));
if (ruc_res) {
spin_unlock_irqrestore(&qp->s_lock,
flags);
goto unlock;
}
spin_unlock_irqrestore(&qp->s_lock, flags);
/* Only deal with RDMA Writes for now */
if (opcode <
@ -547,6 +542,15 @@ move_along:
updegr = 0;
}
}
/*
* Notify qib_destroy_qp() if it is waiting
* for lookaside_qp to finish.
*/
if (rcd->lookaside_qp) {
if (atomic_dec_and_test(&rcd->lookaside_qp->refcount))
wake_up(&rcd->lookaside_qp->wait);
rcd->lookaside_qp = NULL;
}
rcd->head = l;
rcd->pkt_count += i;

2
drivers/infiniband/hw/qib/qib_file_ops.c
View File

@ -1284,6 +1284,7 @@ static int setup_ctxt(struct qib_pportdata *ppd, int ctxt,
strlcpy(rcd->comm, current->comm, sizeof(rcd->comm));
ctxt_fp(fp) = rcd;
qib_stats.sps_ctxts++;
dd->freectxts++;
ret = 0;
goto bail;
@ -1792,6 +1793,7 @@ static int qib_close(struct inode *in, struct file *fp)
if (dd->pageshadow)
unlock_expected_tids(rcd);
qib_stats.sps_ctxts--;
dd->freectxts--;
}
mutex_unlock(&qib_mutex);

2
drivers/infiniband/hw/qib/qib_iba6120.c
View File

@ -3273,6 +3273,8 @@ static int init_6120_variables(struct qib_devdata *dd)
/* we always allocate at least 2048 bytes for eager buffers */
ret = ib_mtu_enum_to_int(qib_ibmtu);
dd->rcvegrbufsize = ret != -1 ? max(ret, 2048) : QIB_DEFAULT_MTU;
BUG_ON(!is_power_of_2(dd->rcvegrbufsize));
dd->rcvegrbufsize_shift = ilog2(dd->rcvegrbufsize);
qib_6120_tidtemplate(dd);

2
drivers/infiniband/hw/qib/qib_iba7220.c
View File

@ -4085,6 +4085,8 @@ static int qib_init_7220_variables(struct qib_devdata *dd)
/* we always allocate at least 2048 bytes for eager buffers */
ret = ib_mtu_enum_to_int(qib_ibmtu);
dd->rcvegrbufsize = ret != -1 ? max(ret, 2048) : QIB_DEFAULT_MTU;
BUG_ON(!is_power_of_2(dd->rcvegrbufsize));
dd->rcvegrbufsize_shift = ilog2(dd->rcvegrbufsize);
qib_7220_tidtemplate(dd);

135
drivers/infiniband/hw/qib/qib_iba7322.c
View File

@ -2310,12 +2310,15 @@ static int qib_7322_bringup_serdes(struct qib_pportdata *ppd)
val = ppd->cpspec->ibcctrl_a | (QLOGIC_IB_IBCC_LINKINITCMD_DISABLE <<
QLOGIC_IB_IBCC_LINKINITCMD_SHIFT);
ppd->cpspec->ibcctrl_a = val;
/*
* Reset the PCS interface to the serdes (and also ibc, which is still
* in reset from above). Writes new value of ibcctrl_a as last step.
*/
qib_7322_mini_pcs_reset(ppd);
qib_write_kreg(dd, kr_scratch, 0ULL);
/* clear the linkinit cmds */
ppd->cpspec->ibcctrl_a &= ~SYM_MASK(IBCCtrlA_0, LinkInitCmd);
if (!ppd->cpspec->ibcctrl_b) {
unsigned lse = ppd->link_speed_enabled;
@ -2387,11 +2390,6 @@ static int qib_7322_bringup_serdes(struct qib_pportdata *ppd)
qib_write_kreg_port(ppd, krp_rcvctrl, ppd->p_rcvctrl);
spin_unlock_irqrestore(&dd->cspec->rcvmod_lock, flags);
/* Hold the link state machine for mezz boards */
if (IS_QMH(dd) || IS_QME(dd))
qib_set_ib_7322_lstate(ppd, 0,
QLOGIC_IB_IBCC_LINKINITCMD_DISABLE);
/* Also enable IBSTATUSCHG interrupt. */
val = qib_read_kreg_port(ppd, krp_errmask);
qib_write_kreg_port(ppd, krp_errmask,
@ -2853,9 +2851,8 @@ static irqreturn_t qib_7322intr(int irq, void *data)
for (i = 0; i < dd->first_user_ctxt; i++) {
if (ctxtrbits & rmask) {
ctxtrbits &= ~rmask;
if (dd->rcd[i]) {
if (dd->rcd[i])
qib_kreceive(dd->rcd[i], NULL, &npkts);
}
}
rmask <<= 1;
}
@ -5230,6 +5227,8 @@ static int qib_7322_ib_updown(struct qib_pportdata *ppd, int ibup, u64 ibcs)
QIBL_IB_AUTONEG_INPROG)))
set_7322_ibspeed_fast(ppd, ppd->link_speed_enabled);
if (!(ppd->lflags & QIBL_IB_AUTONEG_INPROG)) {
struct qib_qsfp_data *qd =
&ppd->cpspec->qsfp_data;
/* unlock the Tx settings, speed may change */
qib_write_kreg_port(ppd, krp_tx_deemph_override,
SYM_MASK(IBSD_TX_DEEMPHASIS_OVERRIDE_0,
@ -5237,6 +5236,12 @@ static int qib_7322_ib_updown(struct qib_pportdata *ppd, int ibup, u64 ibcs)
qib_cancel_sends(ppd);
/* on link down, ensure sane pcs state */
qib_7322_mini_pcs_reset(ppd);
/* schedule the qsfp refresh which should turn the link
off */
if (ppd->dd->flags & QIB_HAS_QSFP) {
qd->t_insert = get_jiffies_64();
schedule_work(&qd->work);
}
spin_lock_irqsave(&ppd->sdma_lock, flags);
if (__qib_sdma_running(ppd))
__qib_sdma_process_event(ppd,
@ -5587,43 +5592,79 @@ static void qsfp_7322_event(struct work_struct *work)
struct qib_qsfp_data *qd;
struct qib_pportdata *ppd;
u64 pwrup;
unsigned long flags;
int ret;
u32 le2;
qd = container_of(work, struct qib_qsfp_data, work);
ppd = qd->ppd;
pwrup = qd->t_insert + msecs_to_jiffies(QSFP_PWR_LAG_MSEC);
pwrup = qd->t_insert +
msecs_to_jiffies(QSFP_PWR_LAG_MSEC - QSFP_MODPRS_LAG_MSEC);
/*
* Some QSFP's not only do not respond until the full power-up
* time, but may behave badly if we try. So hold off responding
* to insertion.
*/
while (1) {
u64 now = get_jiffies_64();
if (time_after64(now, pwrup))
break;
msleep(20);
}
ret = qib_refresh_qsfp_cache(ppd, &qd->cache);
/*
* Need to change LE2 back to defaults if we couldn't
* read the cable type (to handle cable swaps), so do this
* even on failure to read cable information. We don't
* get here for QME, so IS_QME check not needed here.
*/
if (!ret && !ppd->dd->cspec->r1) {
if (QSFP_IS_ACTIVE_FAR(qd->cache.tech))
le2 = LE2_QME;
else if (qd->cache.atten[1] >= qib_long_atten &&
QSFP_IS_CU(qd->cache.tech))
le2 = LE2_5m;
else
/* Delay for 20 msecs to allow ModPrs resistor to setup */
mdelay(QSFP_MODPRS_LAG_MSEC);
if (!qib_qsfp_mod_present(ppd)) {
ppd->cpspec->qsfp_data.modpresent = 0;
/* Set the physical link to disabled */
qib_set_ib_7322_lstate(ppd, 0,
QLOGIC_IB_IBCC_LINKINITCMD_DISABLE);
spin_lock_irqsave(&ppd->lflags_lock, flags);
ppd->lflags &= ~QIBL_LINKV;
spin_unlock_irqrestore(&ppd->lflags_lock, flags);
} else {
/*
* Some QSFP's not only do not respond until the full power-up
* time, but may behave badly if we try. So hold off responding
* to insertion.
*/
while (1) {
u64 now = get_jiffies_64();
if (time_after64(now, pwrup))
break;
msleep(20);
}
ret = qib_refresh_qsfp_cache(ppd, &qd->cache);
/*
* Need to change LE2 back to defaults if we couldn't
* read the cable type (to handle cable swaps), so do this
* even on failure to read cable information. We don't
* get here for QME, so IS_QME check not needed here.
*/
if (!ret && !ppd->dd->cspec->r1) {
if (QSFP_IS_ACTIVE_FAR(qd->cache.tech))
le2 = LE2_QME;
else if (qd->cache.atten[1] >= qib_long_atten &&
QSFP_IS_CU(qd->cache.tech))
le2 = LE2_5m;
else
le2 = LE2_DEFAULT;
} else
le2 = LE2_DEFAULT;
} else
le2 = LE2_DEFAULT;
ibsd_wr_allchans(ppd, 13, (le2 << 7), BMASK(9, 7));
init_txdds_table(ppd, 0);
ibsd_wr_allchans(ppd, 13, (le2 << 7), BMASK(9, 7));
/*
* We always change parameteters, since we can choose
* values for cables without eeproms, and the cable may have
* changed from a cable with full or partial eeprom content
* to one with partial or no content.
*/
init_txdds_table(ppd, 0);
/* The physical link is being re-enabled only when the
* previous state was DISABLED and the VALID bit is not
* set. This should only happen when the cable has been
* physically pulled. */
if (!ppd->cpspec->qsfp_data.modpresent &&
(ppd->lflags & (QIBL_LINKV | QIBL_IB_LINK_DISABLED))) {
ppd->cpspec->qsfp_data.modpresent = 1;
qib_set_ib_7322_lstate(ppd, 0,
QLOGIC_IB_IBCC_LINKINITCMD_SLEEP);
spin_lock_irqsave(&ppd->lflags_lock, flags);
ppd->lflags |= QIBL_LINKV;
spin_unlock_irqrestore(&ppd->lflags_lock, flags);
}
}
}
/*
@ -5727,7 +5768,8 @@ static void set_no_qsfp_atten(struct qib_devdata *dd, int change)
/* now change the IBC and serdes, overriding generic */
init_txdds_table(ppd, 1);
/* Re-enable the physical state machine on mezz boards
* now that the correct settings have been set. */
* now that the correct settings have been set.
* QSFP boards are handles by the QSFP event handler */
if (IS_QMH(dd) || IS_QME(dd))
qib_set_ib_7322_lstate(ppd, 0,
QLOGIC_IB_IBCC_LINKINITCMD_SLEEP);
@ -6205,6 +6247,8 @@ static int qib_init_7322_variables(struct qib_devdata *dd)
/* we always allocate at least 2048 bytes for eager buffers */
dd->rcvegrbufsize = max(mtu, 2048);
BUG_ON(!is_power_of_2(dd->rcvegrbufsize));
dd->rcvegrbufsize_shift = ilog2(dd->rcvegrbufsize);
qib_7322_tidtemplate(dd);
@ -7147,7 +7191,8 @@ static void find_best_ent(struct qib_pportdata *ppd,
}
}
/* Lookup serdes setting by cable type and attenuation */
/* Active cables don't have attenuation so we only set SERDES
* settings to account for the attenuation of the board traces. */
if (!override && QSFP_IS_ACTIVE(qd->tech)) {
*sdr_dds = txdds_sdr + ppd->dd->board_atten;
*ddr_dds = txdds_ddr + ppd->dd->board_atten;
@ -7464,12 +7509,6 @@ static int serdes_7322_init_new(struct qib_pportdata *ppd)
u32 le_val, rxcaldone;
int chan, chan_done = (1 << SERDES_CHANS) - 1;
/*
* Initialize the Tx DDS tables. Also done every QSFP event,
* for adapters with QSFP
*/
init_txdds_table(ppd, 0);
/* Clear cmode-override, may be set from older driver */
ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 10, 0 << 14, 1 << 14);
@ -7655,6 +7694,12 @@ static int serdes_7322_init_new(struct qib_pportdata *ppd)
/* VGA output common mode */
ibsd_wr_allchans(ppd, 12, (3 << 2), BMASK(3, 2));
/*
* Initialize the Tx DDS tables. Also done every QSFP event,
* for adapters with QSFP
*/
init_txdds_table(ppd, 0);
return 0;
}

8
drivers/infiniband/hw/qib/qib_init.c
View File

@ -183,6 +183,9 @@ struct qib_ctxtdata *qib_create_ctxtdata(struct qib_pportdata *ppd, u32 ctxt)
rcd->rcvegrbuf_chunks = (rcd->rcvegrcnt +
rcd->rcvegrbufs_perchunk - 1) /
rcd->rcvegrbufs_perchunk;
BUG_ON(!is_power_of_2(rcd->rcvegrbufs_perchunk));
rcd->rcvegrbufs_perchunk_shift =
ilog2(rcd->rcvegrbufs_perchunk);
}
return rcd;
}
@ -398,6 +401,7 @@ static void enable_chip(struct qib_devdata *dd)
if (rcd)
dd->f_rcvctrl(rcd->ppd, rcvmask, i);
}
dd->freectxts = dd->cfgctxts - dd->first_user_ctxt;
}
static void verify_interrupt(unsigned long opaque)
@ -581,10 +585,6 @@ int qib_init(struct qib_devdata *dd, int reinit)
continue;
}
/* let link come up, and enable IBC */
spin_lock_irqsave(&ppd->lflags_lock, flags);
ppd->lflags &= ~QIBL_IB_LINK_DISABLED;
spin_unlock_irqrestore(&ppd->lflags_lock, flags);
portok++;
}

100
drivers/infiniband/hw/qib/qib_qp.c
View File

@ -34,6 +34,7 @@
#include <linux/err.h>
#include <linux/vmalloc.h>
#include <linux/jhash.h>
#include "qib.h"
@ -204,6 +205,13 @@ static void free_qpn(struct qib_qpn_table *qpt, u32 qpn)
clear_bit(qpn & BITS_PER_PAGE_MASK, map->page);
}
static inline unsigned qpn_hash(struct qib_ibdev *dev, u32 qpn)
{
return jhash_1word(qpn, dev->qp_rnd) &
(dev->qp_table_size - 1);
}
/*
* Put the QP into the hash table.
* The hash table holds a reference to the QP.
@ -211,22 +219,23 @@ static void free_qpn(struct qib_qpn_table *qpt, u32 qpn)
static void insert_qp(struct qib_ibdev *dev, struct qib_qp *qp)
{
struct qib_ibport *ibp = to_iport(qp->ibqp.device, qp->port_num);
unsigned n = qp->ibqp.qp_num % dev->qp_table_size;
unsigned long flags;
unsigned n = qpn_hash(dev, qp->ibqp.qp_num);
spin_lock_irqsave(&dev->qpt_lock, flags);
if (qp->ibqp.qp_num == 0)
ibp->qp0 = qp;
else if (qp->ibqp.qp_num == 1)
ibp->qp1 = qp;
else {
qp->next = dev->qp_table[n];
dev->qp_table[n] = qp;
}
atomic_inc(&qp->refcount);
if (qp->ibqp.qp_num == 0)
rcu_assign_pointer(ibp->qp0, qp);
else if (qp->ibqp.qp_num == 1)
rcu_assign_pointer(ibp->qp1, qp);
else {
qp->next = dev->qp_table[n];
rcu_assign_pointer(dev->qp_table[n], qp);
}
spin_unlock_irqrestore(&dev->qpt_lock, flags);
synchronize_rcu();
}
/*
@ -236,29 +245,32 @@ static void insert_qp(struct qib_ibdev *dev, struct qib_qp *qp)
static void remove_qp(struct qib_ibdev *dev, struct qib_qp *qp)
{
struct qib_ibport *ibp = to_iport(qp->ibqp.device, qp->port_num);
struct qib_qp *q, **qpp;
unsigned n = qpn_hash(dev, qp->ibqp.qp_num);
unsigned long flags;
qpp = &dev->qp_table[qp->ibqp.qp_num % dev->qp_table_size];
spin_lock_irqsave(&dev->qpt_lock, flags);
if (ibp->qp0 == qp) {
ibp->qp0 = NULL;
atomic_dec(&qp->refcount);
rcu_assign_pointer(ibp->qp0, NULL);
} else if (ibp->qp1 == qp) {
ibp->qp1 = NULL;
atomic_dec(&qp->refcount);
} else
rcu_assign_pointer(ibp->qp1, NULL);
} else {
struct qib_qp *q, **qpp;
qpp = &dev->qp_table[n];
for (; (q = *qpp) != NULL; qpp = &q->next)
if (q == qp) {
*qpp = qp->next;
qp->next = NULL;
atomic_dec(&qp->refcount);
rcu_assign_pointer(*qpp, qp->next);
qp->next = NULL;
break;
}
}
spin_unlock_irqrestore(&dev->qpt_lock, flags);
synchronize_rcu();
}
/**
@ -280,21 +292,24 @@ unsigned qib_free_all_qps(struct qib_devdata *dd)
if (!qib_mcast_tree_empty(ibp))
qp_inuse++;
if (ibp->qp0)
rcu_read_lock();
if (rcu_dereference(ibp->qp0))
qp_inuse++;
if (ibp->qp1)
if (rcu_dereference(ibp->qp1))
qp_inuse++;
rcu_read_unlock();
}
spin_lock_irqsave(&dev->qpt_lock, flags);
for (n = 0; n < dev->qp_table_size; n++) {
qp = dev->qp_table[n];
dev->qp_table[n] = NULL;
rcu_assign_pointer(dev->qp_table[n], NULL);
for (; qp; qp = qp->next)
qp_inuse++;
}
spin_unlock_irqrestore(&dev->qpt_lock, flags);
synchronize_rcu();
return qp_inuse;
}
@ -309,25 +324,28 @@ unsigned qib_free_all_qps(struct qib_devdata *dd)
*/
struct qib_qp *qib_lookup_qpn(struct qib_ibport *ibp, u32 qpn)
{
struct qib_ibdev *dev = &ppd_from_ibp(ibp)->dd->verbs_dev;
unsigned long flags;
struct qib_qp *qp;
struct qib_qp *qp = NULL;
spin_lock_irqsave(&dev->qpt_lock, flags);
if (unlikely(qpn <= 1)) {
rcu_read_lock();
if (qpn == 0)
qp = rcu_dereference(ibp->qp0);
else
qp = rcu_dereference(ibp->qp1);
} else {
struct qib_ibdev *dev = &ppd_from_ibp(ibp)->dd->verbs_dev;
unsigned n = qpn_hash(dev, qpn);
if (qpn == 0)
qp = ibp->qp0;
else if (qpn == 1)
qp = ibp->qp1;
else
for (qp = dev->qp_table[qpn % dev->qp_table_size]; qp;
qp = qp->next)
rcu_read_lock();
for (qp = dev->qp_table[n]; rcu_dereference(qp); qp = qp->next)
if (qp->ibqp.qp_num == qpn)
break;
}
if (qp)
atomic_inc(&qp->refcount);
if (unlikely(!atomic_inc_not_zero(&qp->refcount)))
qp = NULL;
spin_unlock_irqrestore(&dev->qpt_lock, flags);
rcu_read_unlock();
return qp;
}
@ -765,8 +783,10 @@ int qib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
}
}
if (attr_mask & IB_QP_PATH_MTU)
if (attr_mask & IB_QP_PATH_MTU) {
qp->path_mtu = pmtu;
qp->pmtu = ib_mtu_enum_to_int(pmtu);
}
if (attr_mask & IB_QP_RETRY_CNT) {
qp->s_retry_cnt = attr->retry_cnt;
@ -781,8 +801,12 @@ int qib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
if (attr_mask & IB_QP_MIN_RNR_TIMER)
qp->r_min_rnr_timer = attr->min_rnr_timer;
if (attr_mask & IB_QP_TIMEOUT)
if (attr_mask & IB_QP_TIMEOUT) {
qp->timeout = attr->timeout;
qp->timeout_jiffies =
usecs_to_jiffies((4096UL * (1UL << qp->timeout)) /
1000UL);
}
if (attr_mask & IB_QP_QKEY)
qp->qkey = attr->qkey;
@ -1013,6 +1037,10 @@ struct ib_qp *qib_create_qp(struct ib_pd *ibpd,
ret = ERR_PTR(-ENOMEM);
goto bail_swq;
}
RCU_INIT_POINTER(qp->next, NULL);
qp->timeout_jiffies =
usecs_to_jiffies((4096UL * (1UL << qp->timeout)) /
1000UL);
if (init_attr->srq)
sz = 0;
else {

25
drivers/infiniband/hw/qib/qib_qsfp.c
View File

@ -273,18 +273,12 @@ int qib_refresh_qsfp_cache(struct qib_pportdata *ppd, struct qib_qsfp_cache *cp)
int ret;
int idx;
u16 cks;
u32 mask;
u8 peek[4];
/* ensure sane contents on invalid reads, for cable swaps */
memset(cp, 0, sizeof(*cp));
mask = QSFP_GPIO_MOD_PRS_N;
if (ppd->hw_pidx)
mask <<= QSFP_GPIO_PORT2_SHIFT;
ret = ppd->dd->f_gpio_mod(ppd->dd, 0, 0, 0);
if (ret & mask) {
if (!qib_qsfp_mod_present(ppd)) {
ret = -ENODEV;
goto bail;
}
@ -444,6 +438,19 @@ const char * const qib_qsfp_devtech[16] = {
static const char *pwr_codes = "1.5W2.0W2.5W3.5W";
int qib_qsfp_mod_present(struct qib_pportdata *ppd)
{
u32 mask;
int ret;
mask = QSFP_GPIO_MOD_PRS_N <<
(ppd->hw_pidx * QSFP_GPIO_PORT2_SHIFT);
ret = ppd->dd->f_gpio_mod(ppd->dd, 0, 0, 0);
return !((ret & mask) >>
((ppd->hw_pidx * QSFP_GPIO_PORT2_SHIFT) + 3));
}
/*
* Initialize structures that control access to QSFP. Called once per port
* on cards that support QSFP.
@ -452,7 +459,6 @@ void qib_qsfp_init(struct qib_qsfp_data *qd,
void (*fevent)(struct work_struct *))
{
u32 mask, highs;
int pins;
struct qib_devdata *dd = qd->ppd->dd;
@ -480,8 +486,7 @@ void qib_qsfp_init(struct qib_qsfp_data *qd,
mask <<= QSFP_GPIO_PORT2_SHIFT;
/* Do not try to wait here. Better to let event handle it */
pins = dd->f_gpio_mod(dd, 0, 0, 0);
if (pins & mask)
if (!qib_qsfp_mod_present(qd->ppd))
goto bail;
/* We see a module, but it may be unwise to look yet. Just schedule */
qd->t_insert = get_jiffies_64();

3
drivers/infiniband/hw/qib/qib_qsfp.h
View File

@ -34,6 +34,7 @@
#define QSFP_DEV 0xA0
#define QSFP_PWR_LAG_MSEC 2000
#define QSFP_MODPRS_LAG_MSEC 20
/*
* Below are masks for various QSFP signals, for Port 1.
@ -177,10 +178,12 @@ struct qib_qsfp_data {
struct work_struct work;
struct qib_qsfp_cache cache;
u64 t_insert;
u8 modpresent;
};
extern int qib_refresh_qsfp_cache(struct qib_pportdata *ppd,
struct qib_qsfp_cache *cp);
extern int qib_qsfp_mod_present(struct qib_pportdata *ppd);
extern void qib_qsfp_init(struct qib_qsfp_data *qd,
void (*fevent)(struct work_struct *));
extern void qib_qsfp_deinit(struct qib_qsfp_data *qd);

36
drivers/infiniband/hw/qib/qib_rc.c
View File

@ -59,8 +59,7 @@ static void start_timer(struct qib_qp *qp)
qp->s_flags |= QIB_S_TIMER;
qp->s_timer.function = rc_timeout;
/* 4.096 usec. * (1 << qp->timeout) */
qp->s_timer.expires = jiffies +
usecs_to_jiffies((4096UL * (1UL << qp->timeout)) / 1000UL);
qp->s_timer.expires = jiffies + qp->timeout_jiffies;
add_timer(&qp->s_timer);
}
@ -239,7 +238,7 @@ int qib_make_rc_req(struct qib_qp *qp)
u32 len;
u32 bth0;
u32 bth2;
u32 pmtu = ib_mtu_enum_to_int(qp->path_mtu);
u32 pmtu = qp->pmtu;
char newreq;
unsigned long flags;
int ret = 0;
@ -1519,9 +1518,7 @@ read_middle:
* 4.096 usec. * (1 << qp->timeout)
*/
qp->s_flags |= QIB_S_TIMER;
mod_timer(&qp->s_timer, jiffies +
usecs_to_jiffies((4096UL * (1UL << qp->timeout)) /
1000UL));
mod_timer(&qp->s_timer, jiffies + qp->timeout_jiffies);
if (qp->s_flags & QIB_S_WAIT_ACK) {
qp->s_flags &= ~QIB_S_WAIT_ACK;
qib_schedule_send(qp);
@ -1732,7 +1729,7 @@ static int qib_rc_rcv_error(struct qib_other_headers *ohdr,
* same request.
*/
offset = ((psn - e->psn) & QIB_PSN_MASK) *
ib_mtu_enum_to_int(qp->path_mtu);
qp->pmtu;
len = be32_to_cpu(reth->length);
if (unlikely(offset + len != e->rdma_sge.sge_length))
goto unlock_done;
@ -1876,7 +1873,7 @@ void qib_rc_rcv(struct qib_ctxtdata *rcd, struct qib_ib_header *hdr,
u32 psn;
u32 pad;
struct ib_wc wc;
u32 pmtu = ib_mtu_enum_to_int(qp->path_mtu);
u32 pmtu = qp->pmtu;
int diff;
struct ib_reth *reth;
unsigned long flags;
@ -1892,10 +1889,8 @@ void qib_rc_rcv(struct qib_ctxtdata *rcd, struct qib_ib_header *hdr,
}
opcode = be32_to_cpu(ohdr->bth[0]);
spin_lock_irqsave(&qp->s_lock, flags);
if (qib_ruc_check_hdr(ibp, hdr, has_grh, qp, opcode))
goto sunlock;
spin_unlock_irqrestore(&qp->s_lock, flags);
return;
psn = be32_to_cpu(ohdr->bth[2]);
opcode >>= 24;
@ -1955,8 +1950,6 @@ void qib_rc_rcv(struct qib_ctxtdata *rcd, struct qib_ib_header *hdr,
break;
}
memset(&wc, 0, sizeof wc);
if (qp->state == IB_QPS_RTR && !(qp->r_flags & QIB_R_COMM_EST)) {
qp->r_flags |= QIB_R_COMM_EST;
if (qp->ibqp.event_handler) {
@ -2009,16 +2002,19 @@ send_middle:
goto rnr_nak;
qp->r_rcv_len = 0;
if (opcode == OP(SEND_ONLY))
goto send_last;
/* FALLTHROUGH */
goto no_immediate_data;
/* FALLTHROUGH for SEND_ONLY_WITH_IMMEDIATE */
case OP(SEND_LAST_WITH_IMMEDIATE):
send_last_imm:
wc.ex.imm_data = ohdr->u.imm_data;
hdrsize += 4;
wc.wc_flags = IB_WC_WITH_IMM;
/* FALLTHROUGH */
goto send_last;
case OP(SEND_LAST):
case OP(RDMA_WRITE_LAST):
no_immediate_data:
wc.wc_flags = 0;
wc.ex.imm_data = 0;
send_last:
/* Get the number of bytes the message was padded by. */
pad = (be32_to_cpu(ohdr->bth[0]) >> 20) & 3;
@ -2051,6 +2047,12 @@ send_last:
wc.src_qp = qp->remote_qpn;
wc.slid = qp->remote_ah_attr.dlid;
wc.sl = qp->remote_ah_attr.sl;
/* zero fields that are N/A */
wc.vendor_err = 0;
wc.pkey_index = 0;
wc.dlid_path_bits = 0;
wc.port_num = 0;
wc.csum_ok = 0;
/* Signal completion event if the solicited bit is set. */
qib_cq_enter(to_icq(qp->ibqp.recv_cq), &wc,
(ohdr->bth[0] &
@ -2089,7 +2091,7 @@ send_last:
if (opcode == OP(RDMA_WRITE_FIRST))
goto send_middle;
else if (opcode == OP(RDMA_WRITE_ONLY))
goto send_last;
goto no_immediate_data;
ret = qib_get_rwqe(qp, 1);
if (ret < 0)
goto nack_op_err;

7
drivers/infiniband/hw/qib/qib_ruc.c
View File

@ -260,12 +260,15 @@ static int gid_ok(union ib_gid *gid, __be64 gid_prefix, __be64 id)
/*
*
* This should be called with the QP s_lock held.
* This should be called with the QP r_lock held.
*
* The s_lock will be acquired around the qib_migrate_qp() call.
*/
int qib_ruc_check_hdr(struct qib_ibport *ibp, struct qib_ib_header *hdr,
int has_grh, struct qib_qp *qp, u32 bth0)
{
__be64 guid;
unsigned long flags;
if (qp->s_mig_state == IB_MIG_ARMED && (bth0 & IB_BTH_MIG_REQ)) {
if (!has_grh) {
@ -295,7 +298,9 @@ int qib_ruc_check_hdr(struct qib_ibport *ibp, struct qib_ib_header *hdr,
if (be16_to_cpu(hdr->lrh[3]) != qp->alt_ah_attr.dlid ||
ppd_from_ibp(ibp)->port != qp->alt_ah_attr.port_num)
goto err;
spin_lock_irqsave(&qp->s_lock, flags);
qib_migrate_qp(qp);
spin_unlock_irqrestore(&qp->s_lock, flags);
} else {
if (!has_grh) {
if (qp->remote_ah_attr.ah_flags & IB_AH_GRH)

5
drivers/infiniband/hw/qib/qib_srq.c
View File

@ -107,6 +107,11 @@ struct ib_srq *qib_create_srq(struct ib_pd *ibpd,
u32 sz;
struct ib_srq *ret;
if (srq_init_attr->srq_type != IB_SRQT_BASIC) {
ret = ERR_PTR(-ENOSYS);
goto done;
}
if (srq_init_attr->attr.max_sge == 0 ||
srq_init_attr->attr.max_sge > ib_qib_max_srq_sges ||
srq_init_attr->attr.max_wr == 0 ||

3
drivers/infiniband/hw/qib/qib_sysfs.c
View File

@ -515,8 +515,7 @@ static ssize_t show_nfreectxts(struct device *device,
struct qib_devdata *dd = dd_from_dev(dev);
/* Return the number of free user ports (contexts) available. */
return scnprintf(buf, PAGE_SIZE, "%u\n", dd->cfgctxts -
dd->first_user_ctxt - (u32)qib_stats.sps_ctxts);
return scnprintf(buf, PAGE_SIZE, "%u\n", dd->freectxts);
}
static ssize_t show_serial(struct device *device,

25
drivers/infiniband/hw/qib/qib_uc.c
View File

@ -51,7 +51,7 @@ int qib_make_uc_req(struct qib_qp *qp)
u32 hwords;
u32 bth0;
u32 len;
u32 pmtu = ib_mtu_enum_to_int(qp->path_mtu);
u32 pmtu = qp->pmtu;
int ret = 0;
spin_lock_irqsave(&qp->s_lock, flags);
@ -243,13 +243,12 @@ void qib_uc_rcv(struct qib_ibport *ibp, struct qib_ib_header *hdr,
int has_grh, void *data, u32 tlen, struct qib_qp *qp)
{
struct qib_other_headers *ohdr;
unsigned long flags;
u32 opcode;
u32 hdrsize;
u32 psn;
u32 pad;
struct ib_wc wc;
u32 pmtu = ib_mtu_enum_to_int(qp->path_mtu);
u32 pmtu = qp->pmtu;
struct ib_reth *reth;
int ret;
@ -263,14 +262,11 @@ void qib_uc_rcv(struct qib_ibport *ibp, struct qib_ib_header *hdr,
}
opcode = be32_to_cpu(ohdr->bth[0]);
spin_lock_irqsave(&qp->s_lock, flags);
if (qib_ruc_check_hdr(ibp, hdr, has_grh, qp, opcode))
goto sunlock;
spin_unlock_irqrestore(&qp->s_lock, flags);
return;
psn = be32_to_cpu(ohdr->bth[2]);
opcode >>= 24;
memset(&wc, 0, sizeof wc);
/* Compare the PSN verses the expected PSN. */
if (unlikely(qib_cmp24(psn, qp->r_psn) != 0)) {
@ -370,7 +366,7 @@ send_first:
}
qp->r_rcv_len = 0;
if (opcode == OP(SEND_ONLY))
goto send_last;
goto no_immediate_data;
else if (opcode == OP(SEND_ONLY_WITH_IMMEDIATE))
goto send_last_imm;
/* FALLTHROUGH */
@ -389,8 +385,11 @@ send_last_imm:
wc.ex.imm_data = ohdr->u.imm_data;
hdrsize += 4;
wc.wc_flags = IB_WC_WITH_IMM;
/* FALLTHROUGH */
goto send_last;
case OP(SEND_LAST):
no_immediate_data:
wc.ex.imm_data = 0;
wc.wc_flags = 0;
send_last:
/* Get the number of bytes the message was padded by. */
pad = (be32_to_cpu(ohdr->bth[0]) >> 20) & 3;
@ -418,6 +417,12 @@ last_imm:
wc.src_qp = qp->remote_qpn;
wc.slid = qp->remote_ah_attr.dlid;
wc.sl = qp->remote_ah_attr.sl;
/* zero fields that are N/A */
wc.vendor_err = 0;
wc.pkey_index = 0;
wc.dlid_path_bits = 0;
wc.port_num = 0;
wc.csum_ok = 0;
/* Signal completion event if the solicited bit is set. */
qib_cq_enter(to_icq(qp->ibqp.recv_cq), &wc,
(ohdr->bth[0] &
@ -546,6 +551,4 @@ op_err:
qib_rc_error(qp, IB_WC_LOC_QP_OP_ERR);
return;
sunlock:
spin_unlock_irqrestore(&qp->s_lock, flags);
}

36
drivers/infiniband/hw/qib/qib_verbs.c
View File

@ -38,11 +38,12 @@
#include <linux/utsname.h>
#include <linux/rculist.h>
#include <linux/mm.h>
#include <linux/random.h>
#include "qib.h"
#include "qib_common.h"
static unsigned int ib_qib_qp_table_size = 251;
static unsigned int ib_qib_qp_table_size = 256;
module_param_named(qp_table_size, ib_qib_qp_table_size, uint, S_IRUGO);
MODULE_PARM_DESC(qp_table_size, "QP table size");
@ -659,17 +660,25 @@ void qib_ib_rcv(struct qib_ctxtdata *rcd, void *rhdr, void *data, u32 tlen)
if (atomic_dec_return(&mcast->refcount) <= 1)
wake_up(&mcast->wait);
} else {
qp = qib_lookup_qpn(ibp, qp_num);
if (!qp)
goto drop;
if (rcd->lookaside_qp) {
if (rcd->lookaside_qpn != qp_num) {
if (atomic_dec_and_test(
&rcd->lookaside_qp->refcount))
wake_up(
&rcd->lookaside_qp->wait);
rcd->lookaside_qp = NULL;
}
}
if (!rcd->lookaside_qp) {
qp = qib_lookup_qpn(ibp, qp_num);
if (!qp)
goto drop;
rcd->lookaside_qp = qp;
rcd->lookaside_qpn = qp_num;
} else
qp = rcd->lookaside_qp;
ibp->n_unicast_rcv++;
qib_qp_rcv(rcd, hdr, lnh == QIB_LRH_GRH, data, tlen, qp);
/*
* Notify qib_destroy_qp() if it is waiting
* for us to finish.
*/
if (atomic_dec_and_test(&qp->refcount))
wake_up(&qp->wait);
}
return;
@ -1974,6 +1983,8 @@ static void init_ibport(struct qib_pportdata *ppd)
ibp->z_excessive_buffer_overrun_errors =
cntrs.excessive_buffer_overrun_errors;
ibp->z_vl15_dropped = cntrs.vl15_dropped;
RCU_INIT_POINTER(ibp->qp0, NULL);
RCU_INIT_POINTER(ibp->qp1, NULL);
}
/**
@ -1990,12 +2001,15 @@ int qib_register_ib_device(struct qib_devdata *dd)
int ret;
dev->qp_table_size = ib_qib_qp_table_size;
dev->qp_table = kzalloc(dev->qp_table_size * sizeof *dev->qp_table,
get_random_bytes(&dev->qp_rnd, sizeof(dev->qp_rnd));
dev->qp_table = kmalloc(dev->qp_table_size * sizeof *dev->qp_table,
GFP_KERNEL);
if (!dev->qp_table) {
ret = -ENOMEM;
goto err_qpt;
}
for (i = 0; i < dev->qp_table_size; i++)
RCU_INIT_POINTER(dev->qp_table[i], NULL);
for (i = 0; i < dd->num_pports; i++)
init_ibport(ppd + i);

5
drivers/infiniband/hw/qib/qib_verbs.h
View File

@ -485,6 +485,7 @@ struct qib_qp {
u8 alt_timeout; /* Alternate path timeout for this QP */
u8 port_num;
enum ib_mtu path_mtu;
u32 pmtu; /* decoded from path_mtu */
u32 remote_qpn;
u32 qkey; /* QKEY for this QP (for UD or RD) */
u32 s_size; /* send work queue size */
@ -495,6 +496,7 @@ struct qib_qp {
u32 s_last; /* last completed entry */
u32 s_ssn; /* SSN of tail entry */
u32 s_lsn; /* limit sequence number (credit) */
unsigned long timeout_jiffies; /* computed from timeout */
struct qib_swqe *s_wq; /* send work queue */
struct qib_swqe *s_wqe;
struct qib_rq r_rq; /* receive work queue */
@ -723,7 +725,8 @@ struct qib_ibdev {
dma_addr_t pio_hdrs_phys;
/* list of QPs waiting for RNR timer */
spinlock_t pending_lock; /* protect wait lists, PMA counters, etc. */
unsigned qp_table_size; /* size of the hash table */
u32 qp_table_size; /* size of the hash table */
u32 qp_rnd; /* random bytes for hash */
spinlock_t qpt_lock;
u32 n_piowait;

5
drivers/infiniband/ulp/ipoib/ipoib_cm.c
View File

@ -84,7 +84,7 @@ static void ipoib_cm_dma_unmap_rx(struct ipoib_dev_priv *priv, int frags,
ib_dma_unmap_single(priv->ca, mapping[0], IPOIB_CM_HEAD_SIZE, DMA_FROM_DEVICE);
for (i = 0; i < frags; ++i)
ib_dma_unmap_single(priv->ca, mapping[i + 1], PAGE_SIZE, DMA_FROM_DEVICE);
ib_dma_unmap_page(priv->ca, mapping[i + 1], PAGE_SIZE, DMA_FROM_DEVICE);
}
static int ipoib_cm_post_receive_srq(struct net_device *dev, int id)
@ -183,7 +183,7 @@ partial_error:
ib_dma_unmap_single(priv->ca, mapping[0], IPOIB_CM_HEAD_SIZE, DMA_FROM_DEVICE);
for (; i > 0; --i)
ib_dma_unmap_single(priv->ca, mapping[i], PAGE_SIZE, DMA_FROM_DEVICE);
ib_dma_unmap_page(priv->ca, mapping[i], PAGE_SIZE, DMA_FROM_DEVICE);
dev_kfree_skb_any(skb);
return NULL;
@ -1496,6 +1496,7 @@ static void ipoib_cm_create_srq(struct net_device *dev, int max_sge)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
struct ib_srq_init_attr srq_init_attr = {
.srq_type = IB_SRQT_BASIC,
.attr = {
.max_wr = ipoib_recvq_size,
.max_sge = max_sge

7
drivers/infiniband/ulp/ipoib/ipoib_fs.c
View File

@ -212,16 +212,15 @@ static int ipoib_path_seq_show(struct seq_file *file, void *iter_ptr)
gid_buf, path.pathrec.dlid ? "yes" : "no");
if (path.pathrec.dlid) {
rate = ib_rate_to_mult(path.pathrec.rate) * 25;
rate = ib_rate_to_mbps(path.pathrec.rate);
seq_printf(file,
" DLID: 0x%04x\n"
" SL: %12d\n"
" rate: %*d%s Gb/sec\n",
" rate: %8d.%d Gb/sec\n",
be16_to_cpu(path.pathrec.dlid),
path.pathrec.sl,
10 - ((rate % 10) ? 2 : 0),
rate / 10, rate % 10 ? ".5" : "");
rate / 1000, rate % 1000);
}
seq_putc(file, '\n');

2
drivers/net/mlx4/eq.c
View File

@ -484,7 +484,7 @@ static void mlx4_free_eq(struct mlx4_dev *dev,
mlx4_mtt_cleanup(dev, &eq->mtt);
for (i = 0; i < npages; ++i)
pci_free_consistent(dev->pdev, PAGE_SIZE,
dma_free_coherent(&dev->pdev->dev, PAGE_SIZE,
eq->page_list[i].buf,
eq->page_list[i].map);

6
drivers/net/mlx4/fw.c
View File

@ -204,6 +204,8 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
#define QUERY_DEV_CAP_MAX_MCG_OFFSET 0x63
#define QUERY_DEV_CAP_RSVD_PD_OFFSET 0x64
#define QUERY_DEV_CAP_MAX_PD_OFFSET 0x65
#define QUERY_DEV_CAP_RSVD_XRC_OFFSET 0x66
#define QUERY_DEV_CAP_MAX_XRC_OFFSET 0x67
#define QUERY_DEV_CAP_MAX_COUNTERS_OFFSET 0x68
#define QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET 0x80
#define QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET 0x82
@ -318,6 +320,10 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
dev_cap->reserved_pds = field >> 4;
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PD_OFFSET);
dev_cap->max_pds = 1 << (field & 0x3f);
MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_XRC_OFFSET);
dev_cap->reserved_xrcds = field >> 4;
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PD_OFFSET);
dev_cap->max_xrcds = 1 << (field & 0x1f);
MLX4_GET(size, outbox, QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET);
dev_cap->rdmarc_entry_sz = size;

2
drivers/net/mlx4/fw.h
View File

@ -93,6 +93,8 @@ struct mlx4_dev_cap {
int max_mcgs;
int reserved_pds;
int max_pds;
int reserved_xrcds;
int max_xrcds;
int qpc_entry_sz;
int rdmarc_entry_sz;
int altc_entry_sz;

36
drivers/net/mlx4/main.c
View File

@ -96,6 +96,8 @@ MODULE_PARM_DESC(log_num_mac, "Log2 max number of MACs per ETH port (1-7)");
static int log_num_vlan;
module_param_named(log_num_vlan, log_num_vlan, int, 0444);
MODULE_PARM_DESC(log_num_vlan, "Log2 max number of VLANs per ETH port (0-7)");
/* Log2 max number of VLANs per ETH port (0-7) */
#define MLX4_LOG_NUM_VLANS 7
static int use_prio;
module_param_named(use_prio, use_prio, bool, 0444);
@ -220,6 +222,10 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
dev->caps.reserved_mrws = dev_cap->reserved_mrws;
dev->caps.reserved_uars = dev_cap->reserved_uars;
dev->caps.reserved_pds = dev_cap->reserved_pds;
dev->caps.reserved_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
dev_cap->reserved_xrcds : 0;
dev->caps.max_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
dev_cap->max_xrcds : 0;
dev->caps.mtt_entry_sz = dev->caps.mtts_per_seg * dev_cap->mtt_entry_sz;
dev->caps.max_msg_sz = dev_cap->max_msg_sz;
dev->caps.page_size_cap = ~(u32) (dev_cap->min_page_sz - 1);
@ -230,7 +236,7 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
dev->caps.max_gso_sz = dev_cap->max_gso_sz;
dev->caps.log_num_macs = log_num_mac;
dev->caps.log_num_vlans = log_num_vlan;
dev->caps.log_num_vlans = MLX4_LOG_NUM_VLANS;
dev->caps.log_num_prios = use_prio ? 3 : 0;
for (i = 1; i <= dev->caps.num_ports; ++i) {
@ -912,11 +918,18 @@ static int mlx4_setup_hca(struct mlx4_dev *dev)
goto err_kar_unmap;
}
err = mlx4_init_xrcd_table(dev);
if (err) {
mlx4_err(dev, "Failed to initialize "
"reliable connection domain table, aborting.\n");
goto err_pd_table_free;
}
err = mlx4_init_mr_table(dev);
if (err) {
mlx4_err(dev, "Failed to initialize "
"memory region table, aborting.\n");
goto err_pd_table_free;
goto err_xrcd_table_free;
}
err = mlx4_init_eq_table(dev);
@ -998,6 +1011,13 @@ static int mlx4_setup_hca(struct mlx4_dev *dev)
"ib capabilities (%d). Continuing with "
"caps = 0\n", port, err);
dev->caps.ib_port_def_cap[port] = ib_port_default_caps;
err = mlx4_check_ext_port_caps(dev, port);
if (err)
mlx4_warn(dev, "failed to get port %d extended "
"port capabilities support info (%d)."
" Assuming not supported\n", port, err);
err = mlx4_SET_PORT(dev, port);
if (err) {
mlx4_err(dev, "Failed to set port %d, aborting\n",
@ -1033,6 +1053,9 @@ err_eq_table_free:
err_mr_table_free:
mlx4_cleanup_mr_table(dev);
err_xrcd_table_free:
mlx4_cleanup_xrcd_table(dev);
err_pd_table_free:
mlx4_cleanup_pd_table(dev);
@ -1355,6 +1378,7 @@ err_port:
mlx4_cmd_use_polling(dev);
mlx4_cleanup_eq_table(dev);
mlx4_cleanup_mr_table(dev);
mlx4_cleanup_xrcd_table(dev);
mlx4_cleanup_pd_table(dev);
mlx4_cleanup_uar_table(dev);
@ -1416,6 +1440,7 @@ static void mlx4_remove_one(struct pci_dev *pdev)
mlx4_cmd_use_polling(dev);
mlx4_cleanup_eq_table(dev);
mlx4_cleanup_mr_table(dev);
mlx4_cleanup_xrcd_table(dev);
mlx4_cleanup_pd_table(dev);
iounmap(priv->kar);
@ -1489,10 +1514,9 @@ static int __init mlx4_verify_params(void)
return -1;
}
if ((log_num_vlan < 0) || (log_num_vlan > 7)) {
pr_warning("mlx4_core: bad num_vlan: %d\n", log_num_vlan);
return -1;
}
if (log_num_vlan != 0)
pr_warning("mlx4_core: log_num_vlan - obsolete module param, using %d\n",
MLX4_LOG_NUM_VLANS);
if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 7)) {
pr_warning("mlx4_core: bad log_mtts_per_seg: %d\n", log_mtts_per_seg);

4
drivers/net/mlx4/mlx4.h
View File

@ -335,6 +335,7 @@ struct mlx4_priv {
struct mlx4_cmd cmd;
struct mlx4_bitmap pd_bitmap;
struct mlx4_bitmap xrcd_bitmap;
struct mlx4_uar_table uar_table;
struct mlx4_mr_table mr_table;
struct mlx4_cq_table cq_table;
@ -384,6 +385,7 @@ int mlx4_alloc_eq_table(struct mlx4_dev *dev);
void mlx4_free_eq_table(struct mlx4_dev *dev);
int mlx4_init_pd_table(struct mlx4_dev *dev);
int mlx4_init_xrcd_table(struct mlx4_dev *dev);
int mlx4_init_uar_table(struct mlx4_dev *dev);
int mlx4_init_mr_table(struct mlx4_dev *dev);
int mlx4_init_eq_table(struct mlx4_dev *dev);
@ -393,6 +395,7 @@ int mlx4_init_srq_table(struct mlx4_dev *dev);
int mlx4_init_mcg_table(struct mlx4_dev *dev);
void mlx4_cleanup_pd_table(struct mlx4_dev *dev);
void mlx4_cleanup_xrcd_table(struct mlx4_dev *dev);
void mlx4_cleanup_uar_table(struct mlx4_dev *dev);
void mlx4_cleanup_mr_table(struct mlx4_dev *dev);
void mlx4_cleanup_eq_table(struct mlx4_dev *dev);
@ -450,6 +453,7 @@ void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table);
int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port);
int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps);
int mlx4_check_ext_port_caps(struct mlx4_dev *dev, u8 port);
int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
enum mlx4_protocol prot, enum mlx4_steer_type steer);

2
drivers/net/mlx4/mr.c
View File

@ -139,7 +139,7 @@ static int mlx4_buddy_init(struct mlx4_buddy *buddy, int max_order)
buddy->bits = kzalloc((buddy->max_order + 1) * sizeof (long *),
GFP_KERNEL);
buddy->num_free = kzalloc((buddy->max_order + 1) * sizeof (int *),
buddy->num_free = kcalloc((buddy->max_order + 1), sizeof *buddy->num_free,
GFP_KERNEL);
if (!buddy->bits || !buddy->num_free)
goto err_out;

30
drivers/net/mlx4/pd.c
View File

@ -61,6 +61,24 @@ void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn)
}
EXPORT_SYMBOL_GPL(mlx4_pd_free);
int mlx4_xrcd_alloc(struct mlx4_dev *dev, u32 *xrcdn)
{
struct mlx4_priv *priv = mlx4_priv(dev);
*xrcdn = mlx4_bitmap_alloc(&priv->xrcd_bitmap);
if (*xrcdn == -1)
return -ENOMEM;
return 0;
}
EXPORT_SYMBOL_GPL(mlx4_xrcd_alloc);
void mlx4_xrcd_free(struct mlx4_dev *dev, u32 xrcdn)
{
mlx4_bitmap_free(&mlx4_priv(dev)->xrcd_bitmap, xrcdn);
}
EXPORT_SYMBOL_GPL(mlx4_xrcd_free);
int mlx4_init_pd_table(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
@ -74,6 +92,18 @@ void mlx4_cleanup_pd_table(struct mlx4_dev *dev)
mlx4_bitmap_cleanup(&mlx4_priv(dev)->pd_bitmap);
}
int mlx4_init_xrcd_table(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
return mlx4_bitmap_init(&priv->xrcd_bitmap, (1 << 16),
(1 << 16) - 1, dev->caps.reserved_xrcds + 1, 0);
}
void mlx4_cleanup_xrcd_table(struct mlx4_dev *dev)
{
mlx4_bitmap_cleanup(&mlx4_priv(dev)->xrcd_bitmap);
}
int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar)
{

72
drivers/net/mlx4/port.c
View File

@ -148,22 +148,26 @@ int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *qpn, u8 wrap)
if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER) {
err = mlx4_uc_steer_add(dev, port, mac, qpn, 1);
if (!err) {
entry = kmalloc(sizeof *entry, GFP_KERNEL);
if (!entry) {
mlx4_uc_steer_release(dev, port, mac, *qpn, 1);
return -ENOMEM;
}
entry->mac = mac;
err = radix_tree_insert(&info->mac_tree, *qpn, entry);
if (err) {
mlx4_uc_steer_release(dev, port, mac, *qpn, 1);
return err;
}
} else
if (err)
return err;
entry = kmalloc(sizeof *entry, GFP_KERNEL);
if (!entry) {
mlx4_uc_steer_release(dev, port, mac, *qpn, 1);
return -ENOMEM;
}
entry->mac = mac;
err = radix_tree_insert(&info->mac_tree, *qpn, entry);
if (err) {
kfree(entry);
mlx4_uc_steer_release(dev, port, mac, *qpn, 1);
return err;
}
}
mlx4_dbg(dev, "Registering MAC: 0x%llx\n", (unsigned long long) mac);
mutex_lock(&table->mutex);
for (i = 0; i < MLX4_MAX_MAC_NUM - 1; i++) {
if (free < 0 && !table->refs[i]) {
@ -464,6 +468,48 @@ int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps)
return err;
}
int mlx4_check_ext_port_caps(struct mlx4_dev *dev, u8 port)
{
struct mlx4_cmd_mailbox *inmailbox, *outmailbox;
u8 *inbuf, *outbuf;
int err, packet_error;
inmailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(inmailbox))
return PTR_ERR(inmailbox);
outmailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(outmailbox)) {
mlx4_free_cmd_mailbox(dev, inmailbox);
return PTR_ERR(outmailbox);
}
inbuf = inmailbox->buf;
outbuf = outmailbox->buf;
memset(inbuf, 0, 256);
memset(outbuf, 0, 256);
inbuf[0] = 1;
inbuf[1] = 1;
inbuf[2] = 1;
inbuf[3] = 1;
*(__be16 *) (&inbuf[16]) = MLX4_ATTR_EXTENDED_PORT_INFO;
*(__be32 *) (&inbuf[20]) = cpu_to_be32(port);
err = mlx4_cmd_box(dev, inmailbox->dma, outmailbox->dma, port, 3,
MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C);
packet_error = be16_to_cpu(*(__be16 *) (outbuf + 4));
dev->caps.ext_port_cap[port] = (!err && !packet_error) ?
MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO
: 0;
mlx4_free_cmd_mailbox(dev, inmailbox);
mlx4_free_cmd_mailbox(dev, outmailbox);
return err;
}
int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port)
{
struct mlx4_cmd_mailbox *mailbox;

3
drivers/net/mlx4/qp.c
View File

@ -280,6 +280,9 @@ int mlx4_init_qp_table(struct mlx4_dev *dev)
* We reserve 2 extra QPs per port for the special QPs. The
* block of special QPs must be aligned to a multiple of 8, so
* round up.
*
* We also reserve the MSB of the 24-bit QP number to indicate
* that a QP is an XRC QP.
*/
dev->caps.sqp_start =
ALIGN(dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW], 8);

20
drivers/net/mlx4/srq.c
View File

@ -40,20 +40,20 @@
struct mlx4_srq_context {
__be32 state_logsize_srqn;
u8 logstride;
u8 reserved1[3];
u8 pg_offset;
u8 reserved2[3];
u32 reserved3;
u8 reserved1;
__be16 xrcd;
__be32 pg_offset_cqn;
u32 reserved2;
u8 log_page_size;
u8 reserved4[2];
u8 reserved3[2];
u8 mtt_base_addr_h;
__be32 mtt_base_addr_l;
__be32 pd;
__be16 limit_watermark;
__be16 wqe_cnt;
u16 reserved5;
u16 reserved4;
__be16 wqe_counter;
u32 reserved6;
u32 reserved5;
__be64 db_rec_addr;
};
@ -109,8 +109,8 @@ static int mlx4_QUERY_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox
MLX4_CMD_TIME_CLASS_A);
}
int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt,
u64 db_rec, struct mlx4_srq *srq)
int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, u32 cqn, u16 xrcd,
struct mlx4_mtt *mtt, u64 db_rec, struct mlx4_srq *srq)
{
struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
struct mlx4_cmd_mailbox *mailbox;
@ -148,6 +148,8 @@ int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt,
srq_context->state_logsize_srqn = cpu_to_be32((ilog2(srq->max) << 24) |
srq->srqn);
srq_context->logstride = srq->wqe_shift - 4;
srq_context->xrcd = cpu_to_be16(xrcd);
srq_context->pg_offset_cqn = cpu_to_be32(cqn & 0xffffff);
srq_context->log_page_size = mtt->page_shift - MLX4_ICM_PAGE_SHIFT;
mtt_addr = mlx4_mtt_addr(dev, mtt);

16
include/linux/mlx4/device.h
View File

@ -61,6 +61,7 @@ enum {
MLX4_DEV_CAP_FLAG_RC = 1LL << 0,
MLX4_DEV_CAP_FLAG_UC = 1LL << 1,
MLX4_DEV_CAP_FLAG_UD = 1LL << 2,
MLX4_DEV_CAP_FLAG_XRC = 1LL << 3,
MLX4_DEV_CAP_FLAG_SRQ = 1LL << 6,
MLX4_DEV_CAP_FLAG_IPOIB_CSUM = 1LL << 7,
MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR = 1LL << 8,
@ -82,6 +83,12 @@ enum {
MLX4_DEV_CAP_FLAG_COUNTERS = 1LL << 48
};
#define MLX4_ATTR_EXTENDED_PORT_INFO cpu_to_be16(0xff90)
enum {
MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO = 1 << 0
};
enum {
MLX4_BMME_FLAG_LOCAL_INV = 1 << 6,
MLX4_BMME_FLAG_REMOTE_INV = 1 << 7,
@ -256,6 +263,8 @@ struct mlx4_caps {
int num_qp_per_mgm;
int num_pds;
int reserved_pds;
int max_xrcds;
int reserved_xrcds;
int mtt_entry_sz;
u32 max_msg_sz;
u32 page_size_cap;
@ -276,6 +285,7 @@ struct mlx4_caps {
u32 port_mask;
enum mlx4_port_type possible_type[MLX4_MAX_PORTS + 1];
u32 max_counters;
u8 ext_port_cap[MLX4_MAX_PORTS + 1];
};
struct mlx4_buf_list {
@ -499,6 +509,8 @@ static inline void *mlx4_buf_offset(struct mlx4_buf *buf, int offset)
int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn);
void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn);
int mlx4_xrcd_alloc(struct mlx4_dev *dev, u32 *xrcdn);
void mlx4_xrcd_free(struct mlx4_dev *dev, u32 xrcdn);
int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar);
void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar);
@ -538,8 +550,8 @@ void mlx4_qp_release_range(struct mlx4_dev *dev, int base_qpn, int cnt);
int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp);
void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp);
int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt,
u64 db_rec, struct mlx4_srq *srq);
int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, u32 cqn, u16 xrcdn,
struct mlx4_mtt *mtt, u64 db_rec, struct mlx4_srq *srq);
void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq);
int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark);
int mlx4_srq_query(struct mlx4_dev *dev, struct mlx4_srq *srq, int *limit_watermark);

3
include/linux/mlx4/qp.h
View File

@ -75,6 +75,7 @@ enum {
MLX4_QP_ST_UC = 0x1,
MLX4_QP_ST_RD = 0x2,
MLX4_QP_ST_UD = 0x3,
MLX4_QP_ST_XRC = 0x6,
MLX4_QP_ST_MLX = 0x7
};
@ -137,7 +138,7 @@ struct mlx4_qp_context {
__be32 ssn;
__be32 params2;
__be32 rnr_nextrecvpsn;
__be32 srcd;
__be32 xrcd;
__be32 cqn_recv;
__be64 db_rec_addr;
__be32 qkey;

48
include/rdma/ib_user_verbs.h
View File

@ -81,7 +81,11 @@ enum {
IB_USER_VERBS_CMD_MODIFY_SRQ,
IB_USER_VERBS_CMD_QUERY_SRQ,
IB_USER_VERBS_CMD_DESTROY_SRQ,
IB_USER_VERBS_CMD_POST_SRQ_RECV
IB_USER_VERBS_CMD_POST_SRQ_RECV,
IB_USER_VERBS_CMD_OPEN_XRCD,
IB_USER_VERBS_CMD_CLOSE_XRCD,
IB_USER_VERBS_CMD_CREATE_XSRQ,
IB_USER_VERBS_CMD_OPEN_QP
};
/*
@ -222,6 +226,21 @@ struct ib_uverbs_dealloc_pd {
__u32 pd_handle;
};
struct ib_uverbs_open_xrcd {
__u64 response;
__u32 fd;
__u32 oflags;
__u64 driver_data[0];
};
struct ib_uverbs_open_xrcd_resp {
__u32 xrcd_handle;
};
struct ib_uverbs_close_xrcd {
__u32 xrcd_handle;
};
struct ib_uverbs_reg_mr {
__u64 response;
__u64 start;
@ -404,6 +423,17 @@ struct ib_uverbs_create_qp {
__u64 driver_data[0];
};
struct ib_uverbs_open_qp {
__u64 response;
__u64 user_handle;
__u32 pd_handle;
__u32 qpn;
__u8 qp_type;
__u8 reserved[7];
__u64 driver_data[0];
};
/* also used for open response */
struct ib_uverbs_create_qp_resp {
__u32 qp_handle;
__u32 qpn;
@ -648,11 +678,25 @@ struct ib_uverbs_create_srq {
__u64 driver_data[0];
};
struct ib_uverbs_create_xsrq {
__u64 response;
__u64 user_handle;
__u32 srq_type;
__u32 pd_handle;
__u32 max_wr;
__u32 max_sge;
__u32 srq_limit;
__u32 reserved;
__u32 xrcd_handle;
__u32 cq_handle;
__u64 driver_data[0];
};
struct ib_uverbs_create_srq_resp {
__u32 srq_handle;
__u32 max_wr;
__u32 max_sge;
__u32 reserved;
__u32 srqn;
};
struct ib_uverbs_modify_srq {

106
include/rdma/ib_verbs.h
View File

@ -112,6 +112,7 @@ enum ib_device_cap_flags {
*/
IB_DEVICE_UD_IP_CSUM = (1<<18),
IB_DEVICE_UD_TSO = (1<<19),
IB_DEVICE_XRC = (1<<20),
IB_DEVICE_MEM_MGT_EXTENSIONS = (1<<21),
IB_DEVICE_BLOCK_MULTICAST_LOOPBACK = (1<<22),
};
@ -207,6 +208,7 @@ enum ib_port_cap_flags {
IB_PORT_SM_DISABLED = 1 << 10,
IB_PORT_SYS_IMAGE_GUID_SUP = 1 << 11,
IB_PORT_PKEY_SW_EXT_PORT_TRAP_SUP = 1 << 12,
IB_PORT_EXTENDED_SPEEDS_SUP = 1 << 14,
IB_PORT_CM_SUP = 1 << 16,
IB_PORT_SNMP_TUNNEL_SUP = 1 << 17,
IB_PORT_REINIT_SUP = 1 << 18,
@ -415,7 +417,15 @@ enum ib_rate {
IB_RATE_40_GBPS = 7,
IB_RATE_60_GBPS = 8,
IB_RATE_80_GBPS = 9,
IB_RATE_120_GBPS = 10
IB_RATE_120_GBPS = 10,
IB_RATE_14_GBPS = 11,
IB_RATE_56_GBPS = 12,
IB_RATE_112_GBPS = 13,
IB_RATE_168_GBPS = 14,
IB_RATE_25_GBPS = 15,
IB_RATE_100_GBPS = 16,
IB_RATE_200_GBPS = 17,
IB_RATE_300_GBPS = 18
};
/**
@ -426,6 +436,13 @@ enum ib_rate {
*/
int ib_rate_to_mult(enum ib_rate rate) __attribute_const__;
/**
* ib_rate_to_mbps - Convert the IB rate enum to Mbps.
* For example, IB_RATE_2_5_GBPS will be converted to 2500.
* @rate: rate to convert.
*/
int ib_rate_to_mbps(enum ib_rate rate) __attribute_const__;
/**
* mult_to_ib_rate - Convert a multiple of 2.5 Gbit/sec to an IB rate
* enum.
@ -522,6 +539,11 @@ enum ib_cq_notify_flags {
IB_CQ_REPORT_MISSED_EVENTS = 1 << 2,
};
enum ib_srq_type {
IB_SRQT_BASIC,
IB_SRQT_XRC
};
enum ib_srq_attr_mask {
IB_SRQ_MAX_WR = 1 << 0,
IB_SRQ_LIMIT = 1 << 1,
@ -537,6 +559,14 @@ struct ib_srq_init_attr {
void (*event_handler)(struct ib_event *, void *);
void *srq_context;
struct ib_srq_attr attr;
enum ib_srq_type srq_type;
union {
struct {
struct ib_xrcd *xrcd;
struct ib_cq *cq;
} xrc;
} ext;
};
struct ib_qp_cap {
@ -565,7 +595,11 @@ enum ib_qp_type {
IB_QPT_UC,
IB_QPT_UD,
IB_QPT_RAW_IPV6,
IB_QPT_RAW_ETHERTYPE
IB_QPT_RAW_ETHERTYPE,
/* Save 8 for RAW_PACKET */
IB_QPT_XRC_INI = 9,
IB_QPT_XRC_TGT,
IB_QPT_MAX
};
enum ib_qp_create_flags {
@ -579,6 +613,7 @@ struct ib_qp_init_attr {
struct ib_cq *send_cq;
struct ib_cq *recv_cq;
struct ib_srq *srq;
struct ib_xrcd *xrcd; /* XRC TGT QPs only */
struct ib_qp_cap cap;
enum ib_sig_type sq_sig_type;
enum ib_qp_type qp_type;
@ -586,6 +621,13 @@ struct ib_qp_init_attr {
u8 port_num; /* special QP types only */
};
struct ib_qp_open_attr {
void (*event_handler)(struct ib_event *, void *);
void *qp_context;
u32 qp_num;
enum ib_qp_type qp_type;
};
enum ib_rnr_timeout {
IB_RNR_TIMER_655_36 = 0,
IB_RNR_TIMER_000_01 = 1,
@ -770,6 +812,7 @@ struct ib_send_wr {
u32 rkey;
} fast_reg;
} wr;
u32 xrc_remote_srq_num; /* XRC TGT QPs only */
};
struct ib_recv_wr {
@ -831,6 +874,7 @@ struct ib_ucontext {
struct list_head qp_list;
struct list_head srq_list;
struct list_head ah_list;
struct list_head xrcd_list;
int closing;
};
@ -858,6 +902,15 @@ struct ib_pd {
atomic_t usecnt; /* count all resources */
};
struct ib_xrcd {
struct ib_device *device;
atomic_t usecnt; /* count all exposed resources */
struct inode *inode;
struct mutex tgt_qp_mutex;
struct list_head tgt_qp_list;
};
struct ib_ah {
struct ib_device *device;
struct ib_pd *pd;
@ -882,7 +935,16 @@ struct ib_srq {
struct ib_uobject *uobject;
void (*event_handler)(struct ib_event *, void *);
void *srq_context;
enum ib_srq_type srq_type;
atomic_t usecnt;
union {
struct {
struct ib_xrcd *xrcd;
struct ib_cq *cq;
u32 srq_num;
} xrc;
} ext;
};
struct ib_qp {
@ -891,6 +953,11 @@ struct ib_qp {
struct ib_cq *send_cq;
struct ib_cq *recv_cq;
struct ib_srq *srq;
struct ib_xrcd *xrcd; /* XRC TGT QPs only */
struct list_head xrcd_list;
atomic_t usecnt; /* count times opened */
struct list_head open_list;
struct ib_qp *real_qp;
struct ib_uobject *uobject;
void (*event_handler)(struct ib_event *, void *);
void *qp_context;
@ -1149,6 +1216,10 @@ struct ib_device {
struct ib_grh *in_grh,
struct ib_mad *in_mad,
struct ib_mad *out_mad);
struct ib_xrcd * (*alloc_xrcd)(struct ib_device *device,
struct ib_ucontext *ucontext,
struct ib_udata *udata);
int (*dealloc_xrcd)(struct ib_xrcd *xrcd);
struct ib_dma_mapping_ops *dma_ops;
@ -1442,6 +1513,25 @@ int ib_query_qp(struct ib_qp *qp,
*/
int ib_destroy_qp(struct ib_qp *qp);
/**
* ib_open_qp - Obtain a reference to an existing sharable QP.
* @xrcd - XRC domain
* @qp_open_attr: Attributes identifying the QP to open.
*
* Returns a reference to a sharable QP.
*/
struct ib_qp *ib_open_qp(struct ib_xrcd *xrcd,
struct ib_qp_open_attr *qp_open_attr);
/**
* ib_close_qp - Release an external reference to a QP.
* @qp: The QP handle to release
*
* The opened QP handle is released by the caller. The underlying
* shared QP is not destroyed until all internal references are released.
*/
int ib_close_qp(struct ib_qp *qp);
/**
* ib_post_send - Posts a list of work requests to the send queue of
* the specified QP.
@ -2060,4 +2150,16 @@ int ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid);
*/
int ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid);
/**
* ib_alloc_xrcd - Allocates an XRC domain.
* @device: The device on which to allocate the XRC domain.
*/
struct ib_xrcd *ib_alloc_xrcd(struct ib_device *device);
/**
* ib_dealloc_xrcd - Deallocates an XRC domain.
* @xrcd: The XRC domain to deallocate.
*/
int ib_dealloc_xrcd(struct ib_xrcd *xrcd);
#endif /* IB_VERBS_H */

4
include/rdma/iw_cm.h
View File

@ -52,8 +52,10 @@ struct iw_cm_event {
struct sockaddr_in local_addr;
struct sockaddr_in remote_addr;
void *private_data;
u8 private_data_len;
void *provider_data;
u8 private_data_len;
u8 ord;
u8 ird;
};
/**

1
include/rdma/rdma_cm.h
View File

@ -65,6 +65,7 @@ enum rdma_cm_event_type {
enum rdma_port_space {
RDMA_PS_SDP = 0x0001,
RDMA_PS_IPOIB = 0x0002,
RDMA_PS_IB = 0x013F,
RDMA_PS_TCP = 0x0106,
RDMA_PS_UDP = 0x0111,
};

3
include/rdma/rdma_user_cm.h
View File

@ -77,7 +77,8 @@ struct rdma_ucm_create_id {
__u64 uid;
__u64 response;
__u16 ps;
__u8 reserved[6];
__u8 qp_type;
__u8 reserved[5];
};
struct rdma_ucm_create_id_resp {