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[SCSI] libiscsi: iscsi_session_setup to allow for private space

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This patch contains changes that allow iscsi_session_setup
to allocate private space for LLD's

Signed-off-by: Jayamohan Kallickal <jayamohank@serverengines.com>
Acked-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Jayamohan Kallickal 2009-09-22 08:21:22 +05:30 committed by James Bottomley
parent 6733b39a13
commit b8b9e1b812
8 changed files with 19 additions and 9 deletions
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2
drivers/infiniband/ulp/iser/iscsi_iser.c
View File

@ -426,7 +426,7 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep,
* because we preallocate so many resources
*/
cls_session = iscsi_session_setup(&iscsi_iser_transport, shost,
ISCSI_DEF_XMIT_CMDS_MAX,
ISCSI_DEF_XMIT_CMDS_MAX, 0,
sizeof(struct iscsi_iser_task),
initial_cmdsn, 0);
if (!cls_session)

6
drivers/scsi/be2iscsi/be_iscsi.c
View File

@ -44,9 +44,10 @@ struct iscsi_cls_session *beiscsi_session_create(struct iscsi_endpoint *ep,
struct Scsi_Host *shost;
struct beiscsi_endpoint *beiscsi_ep;
struct iscsi_cls_session *cls_session;
struct iscsi_session *sess;
struct beiscsi_hba *phba;
struct iscsi_task *task;
struct iscsi_session *sess;
struct beiscsi_session *beiscsi_sess;
struct beiscsi_io_task *io_task;
unsigned int max_size, num_cmd;
dma_addr_t bus_add;
@ -73,7 +74,8 @@ struct iscsi_cls_session *beiscsi_session_create(struct iscsi_endpoint *ep,
cls_session = iscsi_session_setup(&beiscsi_iscsi_transport,
shost, cmds_max,
sizeof(struct beiscsi_io_task),
sizeof(*beiscsi_sess),
sizeof(*io_task),
initial_cmdsn, ISCSI_MAX_TARGET);
if (!cls_session)
return NULL;

5
drivers/scsi/be2iscsi/be_main.h
View File

@ -327,6 +327,10 @@ struct beiscsi_hba {
struct be_ctrl_info ctrl;
};
struct beiscsi_session {
struct pci_pool *bhs_pool;
};
/**
* struct beiscsi_conn - iscsi connection structure
*/
@ -338,6 +342,7 @@ struct beiscsi_conn {
struct beiscsi_endpoint *ep;
unsigned short login_in_progress;
struct sgl_handle *plogin_sgl_handle;
struct beiscsi_session *beiscsi_sess;
};
/* This structure is used by the chip */

2
drivers/scsi/bnx2i/bnx2i_iscsi.c
View File

@ -1243,7 +1243,7 @@ bnx2i_session_create(struct iscsi_endpoint *ep,
cmds_max = BNX2I_SQ_WQES_MIN;
cls_session = iscsi_session_setup(&bnx2i_iscsi_transport, shost,
cmds_max, sizeof(struct bnx2i_cmd),
cmds_max, 0, sizeof(struct bnx2i_cmd),
initial_cmdsn, ISCSI_MAX_TARGET);
if (!cls_session)
return NULL;

2
drivers/scsi/cxgb3i/cxgb3i_iscsi.c
View File

@ -422,7 +422,7 @@ cxgb3i_session_create(struct iscsi_endpoint *ep, u16 cmds_max, u16 qdepth,
BUG_ON(hba != iscsi_host_priv(shost));
cls_session = iscsi_session_setup(&cxgb3i_iscsi_transport, shost,
cmds_max,
cmds_max, 0,
sizeof(struct iscsi_tcp_task) +
sizeof(struct cxgb3i_task_data),
initial_cmdsn, ISCSI_MAX_TARGET);

2
drivers/scsi/iscsi_tcp.c
View File

@ -811,7 +811,7 @@ iscsi_sw_tcp_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
goto free_host;
cls_session = iscsi_session_setup(&iscsi_sw_tcp_transport, shost,
cmds_max,
cmds_max, 0,
sizeof(struct iscsi_tcp_task) +
sizeof(struct iscsi_sw_tcp_hdrbuf),
initial_cmdsn, 0);

6
drivers/scsi/libiscsi.c
View File

@ -2436,7 +2436,7 @@ static void iscsi_host_dec_session_cnt(struct Scsi_Host *shost)
*/
struct iscsi_cls_session *
iscsi_session_setup(struct iscsi_transport *iscsit, struct Scsi_Host *shost,
uint16_t cmds_max, int cmd_task_size,
uint16_t cmds_max, int dd_size, int cmd_task_size,
uint32_t initial_cmdsn, unsigned int id)
{
struct iscsi_host *ihost = shost_priv(shost);
@ -2486,7 +2486,8 @@ iscsi_session_setup(struct iscsi_transport *iscsit, struct Scsi_Host *shost,
scsi_cmds = total_cmds - ISCSI_MGMT_CMDS_MAX;
cls_session = iscsi_alloc_session(shost, iscsit,
sizeof(struct iscsi_session));
sizeof(struct iscsi_session) +
dd_size);
if (!cls_session)
goto dec_session_count;
session = cls_session->dd_data;
@ -2503,6 +2504,7 @@ iscsi_session_setup(struct iscsi_transport *iscsit, struct Scsi_Host *shost,
session->max_cmdsn = initial_cmdsn + 1;
session->max_r2t = 1;
session->tt = iscsit;
session->dd_data = cls_session->dd_data + sizeof(*session);
mutex_init(&session->eh_mutex);
spin_lock_init(&session->lock);

3
include/scsi/libiscsi.h
View File

@ -303,6 +303,7 @@ struct iscsi_session {
int cmds_max; /* size of cmds array */
struct iscsi_task **cmds; /* Original Cmds arr */
struct iscsi_pool cmdpool; /* PDU's pool */
void *dd_data; /* LLD private data */
};
enum {
@ -363,7 +364,7 @@ extern int iscsi_target_alloc(struct scsi_target *starget);
*/
extern struct iscsi_cls_session *
iscsi_session_setup(struct iscsi_transport *, struct Scsi_Host *shost,
uint16_t, int, uint32_t, unsigned int);
uint16_t, int, int, uint32_t, unsigned int);
extern void iscsi_session_teardown(struct iscsi_cls_session *);
extern void iscsi_session_recovery_timedout(struct iscsi_cls_session *);
extern int iscsi_set_param(struct iscsi_cls_conn *cls_conn,