mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-16 14:02:10 +00:00
3e8ce320cf
For recent ISPs, software must detect OVERRUN conditions by checking the SS_RESIDUAL_OVER bit during CS_COMPLETE handling. Update the driver to perform this check, which is consistent with what earlier firmwares did by explicitly cracking open the FCP_RSP statuses and returning an CS_DATA_OVERRUN. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
1912 lines
49 KiB
C
1912 lines
49 KiB
C
/*
|
|
* QLogic Fibre Channel HBA Driver
|
|
* Copyright (c) 2003-2005 QLogic Corporation
|
|
*
|
|
* See LICENSE.qla2xxx for copyright and licensing details.
|
|
*/
|
|
#include "qla_def.h"
|
|
|
|
#include <linux/delay.h>
|
|
#include <scsi/scsi_tcq.h>
|
|
|
|
static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
|
|
static void qla2x00_process_completed_request(struct scsi_qla_host *, uint32_t);
|
|
static void qla2x00_status_entry(scsi_qla_host_t *, void *);
|
|
static void qla2x00_status_cont_entry(scsi_qla_host_t *, sts_cont_entry_t *);
|
|
static void qla2x00_error_entry(scsi_qla_host_t *, sts_entry_t *);
|
|
static void qla2x00_ms_entry(scsi_qla_host_t *, ms_iocb_entry_t *);
|
|
|
|
static void qla24xx_ms_entry(scsi_qla_host_t *, struct ct_entry_24xx *);
|
|
|
|
/**
|
|
* qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
|
|
* @irq:
|
|
* @dev_id: SCSI driver HA context
|
|
*
|
|
* Called by system whenever the host adapter generates an interrupt.
|
|
*
|
|
* Returns handled flag.
|
|
*/
|
|
irqreturn_t
|
|
qla2100_intr_handler(int irq, void *dev_id)
|
|
{
|
|
scsi_qla_host_t *ha;
|
|
struct device_reg_2xxx __iomem *reg;
|
|
int status;
|
|
unsigned long flags;
|
|
unsigned long iter;
|
|
uint16_t hccr;
|
|
uint16_t mb[4];
|
|
|
|
ha = (scsi_qla_host_t *) dev_id;
|
|
if (!ha) {
|
|
printk(KERN_INFO
|
|
"%s(): NULL host pointer\n", __func__);
|
|
return (IRQ_NONE);
|
|
}
|
|
|
|
reg = &ha->iobase->isp;
|
|
status = 0;
|
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
for (iter = 50; iter--; ) {
|
|
hccr = RD_REG_WORD(®->hccr);
|
|
if (hccr & HCCR_RISC_PAUSE) {
|
|
if (pci_channel_offline(ha->pdev))
|
|
break;
|
|
|
|
/*
|
|
* Issue a "HARD" reset in order for the RISC interrupt
|
|
* bit to be cleared. Schedule a big hammmer to get
|
|
* out of the RISC PAUSED state.
|
|
*/
|
|
WRT_REG_WORD(®->hccr, HCCR_RESET_RISC);
|
|
RD_REG_WORD(®->hccr);
|
|
|
|
ha->isp_ops->fw_dump(ha, 1);
|
|
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
|
|
break;
|
|
} else if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0)
|
|
break;
|
|
|
|
if (RD_REG_WORD(®->semaphore) & BIT_0) {
|
|
WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
|
|
RD_REG_WORD(®->hccr);
|
|
|
|
/* Get mailbox data. */
|
|
mb[0] = RD_MAILBOX_REG(ha, reg, 0);
|
|
if (mb[0] > 0x3fff && mb[0] < 0x8000) {
|
|
qla2x00_mbx_completion(ha, mb[0]);
|
|
status |= MBX_INTERRUPT;
|
|
} else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
|
|
mb[1] = RD_MAILBOX_REG(ha, reg, 1);
|
|
mb[2] = RD_MAILBOX_REG(ha, reg, 2);
|
|
mb[3] = RD_MAILBOX_REG(ha, reg, 3);
|
|
qla2x00_async_event(ha, mb);
|
|
} else {
|
|
/*EMPTY*/
|
|
DEBUG2(printk("scsi(%ld): Unrecognized "
|
|
"interrupt type (%d).\n",
|
|
ha->host_no, mb[0]));
|
|
}
|
|
/* Release mailbox registers. */
|
|
WRT_REG_WORD(®->semaphore, 0);
|
|
RD_REG_WORD(®->semaphore);
|
|
} else {
|
|
qla2x00_process_response_queue(ha);
|
|
|
|
WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
|
|
RD_REG_WORD(®->hccr);
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
|
|
(status & MBX_INTERRUPT) && ha->flags.mbox_int) {
|
|
set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
|
|
complete(&ha->mbx_intr_comp);
|
|
}
|
|
|
|
return (IRQ_HANDLED);
|
|
}
|
|
|
|
/**
|
|
* qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
|
|
* @irq:
|
|
* @dev_id: SCSI driver HA context
|
|
*
|
|
* Called by system whenever the host adapter generates an interrupt.
|
|
*
|
|
* Returns handled flag.
|
|
*/
|
|
irqreturn_t
|
|
qla2300_intr_handler(int irq, void *dev_id)
|
|
{
|
|
scsi_qla_host_t *ha;
|
|
struct device_reg_2xxx __iomem *reg;
|
|
int status;
|
|
unsigned long flags;
|
|
unsigned long iter;
|
|
uint32_t stat;
|
|
uint16_t hccr;
|
|
uint16_t mb[4];
|
|
|
|
ha = (scsi_qla_host_t *) dev_id;
|
|
if (!ha) {
|
|
printk(KERN_INFO
|
|
"%s(): NULL host pointer\n", __func__);
|
|
return (IRQ_NONE);
|
|
}
|
|
|
|
reg = &ha->iobase->isp;
|
|
status = 0;
|
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
for (iter = 50; iter--; ) {
|
|
stat = RD_REG_DWORD(®->u.isp2300.host_status);
|
|
if (stat & HSR_RISC_PAUSED) {
|
|
if (pci_channel_offline(ha->pdev))
|
|
break;
|
|
|
|
hccr = RD_REG_WORD(®->hccr);
|
|
if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
|
|
qla_printk(KERN_INFO, ha, "Parity error -- "
|
|
"HCCR=%x, Dumping firmware!\n", hccr);
|
|
else
|
|
qla_printk(KERN_INFO, ha, "RISC paused -- "
|
|
"HCCR=%x, Dumping firmware!\n", hccr);
|
|
|
|
/*
|
|
* Issue a "HARD" reset in order for the RISC
|
|
* interrupt bit to be cleared. Schedule a big
|
|
* hammmer to get out of the RISC PAUSED state.
|
|
*/
|
|
WRT_REG_WORD(®->hccr, HCCR_RESET_RISC);
|
|
RD_REG_WORD(®->hccr);
|
|
|
|
ha->isp_ops->fw_dump(ha, 1);
|
|
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
|
|
break;
|
|
} else if ((stat & HSR_RISC_INT) == 0)
|
|
break;
|
|
|
|
switch (stat & 0xff) {
|
|
case 0x1:
|
|
case 0x2:
|
|
case 0x10:
|
|
case 0x11:
|
|
qla2x00_mbx_completion(ha, MSW(stat));
|
|
status |= MBX_INTERRUPT;
|
|
|
|
/* Release mailbox registers. */
|
|
WRT_REG_WORD(®->semaphore, 0);
|
|
break;
|
|
case 0x12:
|
|
mb[0] = MSW(stat);
|
|
mb[1] = RD_MAILBOX_REG(ha, reg, 1);
|
|
mb[2] = RD_MAILBOX_REG(ha, reg, 2);
|
|
mb[3] = RD_MAILBOX_REG(ha, reg, 3);
|
|
qla2x00_async_event(ha, mb);
|
|
break;
|
|
case 0x13:
|
|
qla2x00_process_response_queue(ha);
|
|
break;
|
|
case 0x15:
|
|
mb[0] = MBA_CMPLT_1_16BIT;
|
|
mb[1] = MSW(stat);
|
|
qla2x00_async_event(ha, mb);
|
|
break;
|
|
case 0x16:
|
|
mb[0] = MBA_SCSI_COMPLETION;
|
|
mb[1] = MSW(stat);
|
|
mb[2] = RD_MAILBOX_REG(ha, reg, 2);
|
|
qla2x00_async_event(ha, mb);
|
|
break;
|
|
default:
|
|
DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
|
|
"(%d).\n",
|
|
ha->host_no, stat & 0xff));
|
|
break;
|
|
}
|
|
WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
|
|
RD_REG_WORD_RELAXED(®->hccr);
|
|
}
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
|
|
(status & MBX_INTERRUPT) && ha->flags.mbox_int) {
|
|
set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
|
|
complete(&ha->mbx_intr_comp);
|
|
}
|
|
|
|
return (IRQ_HANDLED);
|
|
}
|
|
|
|
/**
|
|
* qla2x00_mbx_completion() - Process mailbox command completions.
|
|
* @ha: SCSI driver HA context
|
|
* @mb0: Mailbox0 register
|
|
*/
|
|
static void
|
|
qla2x00_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0)
|
|
{
|
|
uint16_t cnt;
|
|
uint16_t __iomem *wptr;
|
|
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
|
|
|
|
/* Load return mailbox registers. */
|
|
ha->flags.mbox_int = 1;
|
|
ha->mailbox_out[0] = mb0;
|
|
wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
|
|
|
|
for (cnt = 1; cnt < ha->mbx_count; cnt++) {
|
|
if (IS_QLA2200(ha) && cnt == 8)
|
|
wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
|
|
if (cnt == 4 || cnt == 5)
|
|
ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
|
|
else
|
|
ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
|
|
|
|
wptr++;
|
|
}
|
|
|
|
if (ha->mcp) {
|
|
DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
|
|
__func__, ha->host_no, ha->mcp->mb[0]));
|
|
} else {
|
|
DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
|
|
__func__, ha->host_no));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* qla2x00_async_event() - Process aynchronous events.
|
|
* @ha: SCSI driver HA context
|
|
* @mb: Mailbox registers (0 - 3)
|
|
*/
|
|
void
|
|
qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
|
|
{
|
|
#define LS_UNKNOWN 2
|
|
static char *link_speeds[5] = { "1", "2", "?", "4", "8" };
|
|
char *link_speed;
|
|
uint16_t handle_cnt;
|
|
uint16_t cnt;
|
|
uint32_t handles[5];
|
|
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
|
|
uint32_t rscn_entry, host_pid;
|
|
uint8_t rscn_queue_index;
|
|
|
|
/* Setup to process RIO completion. */
|
|
handle_cnt = 0;
|
|
switch (mb[0]) {
|
|
case MBA_SCSI_COMPLETION:
|
|
handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
|
|
handle_cnt = 1;
|
|
break;
|
|
case MBA_CMPLT_1_16BIT:
|
|
handles[0] = mb[1];
|
|
handle_cnt = 1;
|
|
mb[0] = MBA_SCSI_COMPLETION;
|
|
break;
|
|
case MBA_CMPLT_2_16BIT:
|
|
handles[0] = mb[1];
|
|
handles[1] = mb[2];
|
|
handle_cnt = 2;
|
|
mb[0] = MBA_SCSI_COMPLETION;
|
|
break;
|
|
case MBA_CMPLT_3_16BIT:
|
|
handles[0] = mb[1];
|
|
handles[1] = mb[2];
|
|
handles[2] = mb[3];
|
|
handle_cnt = 3;
|
|
mb[0] = MBA_SCSI_COMPLETION;
|
|
break;
|
|
case MBA_CMPLT_4_16BIT:
|
|
handles[0] = mb[1];
|
|
handles[1] = mb[2];
|
|
handles[2] = mb[3];
|
|
handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
|
|
handle_cnt = 4;
|
|
mb[0] = MBA_SCSI_COMPLETION;
|
|
break;
|
|
case MBA_CMPLT_5_16BIT:
|
|
handles[0] = mb[1];
|
|
handles[1] = mb[2];
|
|
handles[2] = mb[3];
|
|
handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
|
|
handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
|
|
handle_cnt = 5;
|
|
mb[0] = MBA_SCSI_COMPLETION;
|
|
break;
|
|
case MBA_CMPLT_2_32BIT:
|
|
handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
|
|
handles[1] = le32_to_cpu(
|
|
((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
|
|
RD_MAILBOX_REG(ha, reg, 6));
|
|
handle_cnt = 2;
|
|
mb[0] = MBA_SCSI_COMPLETION;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch (mb[0]) {
|
|
case MBA_SCSI_COMPLETION: /* Fast Post */
|
|
if (!ha->flags.online)
|
|
break;
|
|
|
|
for (cnt = 0; cnt < handle_cnt; cnt++)
|
|
qla2x00_process_completed_request(ha, handles[cnt]);
|
|
break;
|
|
|
|
case MBA_RESET: /* Reset */
|
|
DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", ha->host_no));
|
|
|
|
set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
|
|
break;
|
|
|
|
case MBA_SYSTEM_ERR: /* System Error */
|
|
qla_printk(KERN_INFO, ha,
|
|
"ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n",
|
|
mb[1], mb[2], mb[3]);
|
|
|
|
ha->isp_ops->fw_dump(ha, 1);
|
|
|
|
if (IS_FWI2_CAPABLE(ha)) {
|
|
if (mb[1] == 0 && mb[2] == 0) {
|
|
qla_printk(KERN_ERR, ha,
|
|
"Unrecoverable Hardware Error: adapter "
|
|
"marked OFFLINE!\n");
|
|
ha->flags.online = 0;
|
|
} else
|
|
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
|
|
} else if (mb[1] == 0) {
|
|
qla_printk(KERN_INFO, ha,
|
|
"Unrecoverable Hardware Error: adapter marked "
|
|
"OFFLINE!\n");
|
|
ha->flags.online = 0;
|
|
} else
|
|
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
|
|
break;
|
|
|
|
case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
|
|
DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n",
|
|
ha->host_no));
|
|
qla_printk(KERN_WARNING, ha, "ISP Request Transfer Error.\n");
|
|
|
|
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
|
|
break;
|
|
|
|
case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
|
|
DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n",
|
|
ha->host_no));
|
|
qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n");
|
|
|
|
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
|
|
break;
|
|
|
|
case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
|
|
DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n",
|
|
ha->host_no));
|
|
break;
|
|
|
|
case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
|
|
DEBUG2(printk("scsi(%ld): LIP occured (%x).\n", ha->host_no,
|
|
mb[1]));
|
|
qla_printk(KERN_INFO, ha, "LIP occured (%x).\n", mb[1]);
|
|
|
|
if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
|
|
atomic_set(&ha->loop_state, LOOP_DOWN);
|
|
atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
|
|
qla2x00_mark_all_devices_lost(ha, 1);
|
|
}
|
|
|
|
if (ha->parent) {
|
|
atomic_set(&ha->vp_state, VP_FAILED);
|
|
fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED);
|
|
}
|
|
|
|
set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
|
|
|
|
ha->flags.management_server_logged_in = 0;
|
|
break;
|
|
|
|
case MBA_LOOP_UP: /* Loop Up Event */
|
|
if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
|
|
link_speed = link_speeds[0];
|
|
ha->link_data_rate = PORT_SPEED_1GB;
|
|
} else {
|
|
link_speed = link_speeds[LS_UNKNOWN];
|
|
if (mb[1] < 5)
|
|
link_speed = link_speeds[mb[1]];
|
|
ha->link_data_rate = mb[1];
|
|
}
|
|
|
|
DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n",
|
|
ha->host_no, link_speed));
|
|
qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n",
|
|
link_speed);
|
|
|
|
ha->flags.management_server_logged_in = 0;
|
|
break;
|
|
|
|
case MBA_LOOP_DOWN: /* Loop Down Event */
|
|
DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN (%x).\n",
|
|
ha->host_no, mb[1]));
|
|
qla_printk(KERN_INFO, ha, "LOOP DOWN detected (%x).\n", mb[1]);
|
|
|
|
if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
|
|
atomic_set(&ha->loop_state, LOOP_DOWN);
|
|
atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
|
|
ha->device_flags |= DFLG_NO_CABLE;
|
|
qla2x00_mark_all_devices_lost(ha, 1);
|
|
}
|
|
|
|
if (ha->parent) {
|
|
atomic_set(&ha->vp_state, VP_FAILED);
|
|
fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED);
|
|
}
|
|
|
|
ha->flags.management_server_logged_in = 0;
|
|
ha->link_data_rate = PORT_SPEED_UNKNOWN;
|
|
if (ql2xfdmienable)
|
|
set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags);
|
|
break;
|
|
|
|
case MBA_LIP_RESET: /* LIP reset occurred */
|
|
DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
|
|
ha->host_no, mb[1]));
|
|
qla_printk(KERN_INFO, ha,
|
|
"LIP reset occured (%x).\n", mb[1]);
|
|
|
|
if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
|
|
atomic_set(&ha->loop_state, LOOP_DOWN);
|
|
atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
|
|
qla2x00_mark_all_devices_lost(ha, 1);
|
|
}
|
|
|
|
if (ha->parent) {
|
|
atomic_set(&ha->vp_state, VP_FAILED);
|
|
fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED);
|
|
}
|
|
|
|
set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
|
|
|
|
ha->operating_mode = LOOP;
|
|
ha->flags.management_server_logged_in = 0;
|
|
break;
|
|
|
|
case MBA_POINT_TO_POINT: /* Point-to-Point */
|
|
if (IS_QLA2100(ha))
|
|
break;
|
|
|
|
DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n",
|
|
ha->host_no));
|
|
|
|
/*
|
|
* Until there's a transition from loop down to loop up, treat
|
|
* this as loop down only.
|
|
*/
|
|
if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
|
|
atomic_set(&ha->loop_state, LOOP_DOWN);
|
|
if (!atomic_read(&ha->loop_down_timer))
|
|
atomic_set(&ha->loop_down_timer,
|
|
LOOP_DOWN_TIME);
|
|
qla2x00_mark_all_devices_lost(ha, 1);
|
|
}
|
|
|
|
if (ha->parent) {
|
|
atomic_set(&ha->vp_state, VP_FAILED);
|
|
fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED);
|
|
}
|
|
|
|
if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
|
|
set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
|
|
}
|
|
set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
|
|
|
|
ha->flags.gpsc_supported = 1;
|
|
ha->flags.management_server_logged_in = 0;
|
|
break;
|
|
|
|
case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
|
|
if (IS_QLA2100(ha))
|
|
break;
|
|
|
|
DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection "
|
|
"received.\n",
|
|
ha->host_no));
|
|
qla_printk(KERN_INFO, ha,
|
|
"Configuration change detected: value=%x.\n", mb[1]);
|
|
|
|
if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
|
|
atomic_set(&ha->loop_state, LOOP_DOWN);
|
|
if (!atomic_read(&ha->loop_down_timer))
|
|
atomic_set(&ha->loop_down_timer,
|
|
LOOP_DOWN_TIME);
|
|
qla2x00_mark_all_devices_lost(ha, 1);
|
|
}
|
|
|
|
if (ha->parent) {
|
|
atomic_set(&ha->vp_state, VP_FAILED);
|
|
fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED);
|
|
}
|
|
|
|
set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
|
|
set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
|
|
break;
|
|
|
|
case MBA_PORT_UPDATE: /* Port database update */
|
|
/*
|
|
* If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET
|
|
* event etc. earlier indicating loop is down) then process
|
|
* it. Otherwise ignore it and Wait for RSCN to come in.
|
|
*/
|
|
atomic_set(&ha->loop_down_timer, 0);
|
|
if (atomic_read(&ha->loop_state) != LOOP_DOWN &&
|
|
atomic_read(&ha->loop_state) != LOOP_DEAD) {
|
|
DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE "
|
|
"ignored %04x/%04x/%04x.\n", ha->host_no, mb[1],
|
|
mb[2], mb[3]));
|
|
break;
|
|
}
|
|
|
|
DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
|
|
ha->host_no));
|
|
DEBUG(printk(KERN_INFO
|
|
"scsi(%ld): Port database changed %04x %04x %04x.\n",
|
|
ha->host_no, mb[1], mb[2], mb[3]));
|
|
|
|
/*
|
|
* Mark all devices as missing so we will login again.
|
|
*/
|
|
atomic_set(&ha->loop_state, LOOP_UP);
|
|
|
|
qla2x00_mark_all_devices_lost(ha, 1);
|
|
|
|
ha->flags.rscn_queue_overflow = 1;
|
|
|
|
set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
|
|
set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
|
|
break;
|
|
|
|
case MBA_RSCN_UPDATE: /* State Change Registration */
|
|
/* Check if the Vport has issued a SCR */
|
|
if (ha->parent && test_bit(VP_SCR_NEEDED, &ha->vp_flags))
|
|
break;
|
|
/* Only handle SCNs for our Vport index. */
|
|
if (ha->flags.npiv_supported && ha->vp_idx != mb[3])
|
|
break;
|
|
|
|
DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
|
|
ha->host_no));
|
|
DEBUG(printk(KERN_INFO
|
|
"scsi(%ld): RSCN database changed -- %04x %04x %04x.\n",
|
|
ha->host_no, mb[1], mb[2], mb[3]));
|
|
|
|
rscn_entry = (mb[1] << 16) | mb[2];
|
|
host_pid = (ha->d_id.b.domain << 16) | (ha->d_id.b.area << 8) |
|
|
ha->d_id.b.al_pa;
|
|
if (rscn_entry == host_pid) {
|
|
DEBUG(printk(KERN_INFO
|
|
"scsi(%ld): Ignoring RSCN update to local host "
|
|
"port ID (%06x)\n",
|
|
ha->host_no, host_pid));
|
|
break;
|
|
}
|
|
|
|
rscn_queue_index = ha->rscn_in_ptr + 1;
|
|
if (rscn_queue_index == MAX_RSCN_COUNT)
|
|
rscn_queue_index = 0;
|
|
if (rscn_queue_index != ha->rscn_out_ptr) {
|
|
ha->rscn_queue[ha->rscn_in_ptr] = rscn_entry;
|
|
ha->rscn_in_ptr = rscn_queue_index;
|
|
} else {
|
|
ha->flags.rscn_queue_overflow = 1;
|
|
}
|
|
|
|
atomic_set(&ha->loop_state, LOOP_UPDATE);
|
|
atomic_set(&ha->loop_down_timer, 0);
|
|
ha->flags.management_server_logged_in = 0;
|
|
|
|
set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
|
|
set_bit(RSCN_UPDATE, &ha->dpc_flags);
|
|
break;
|
|
|
|
/* case MBA_RIO_RESPONSE: */
|
|
case MBA_ZIO_RESPONSE:
|
|
DEBUG2(printk("scsi(%ld): [R|Z]IO update completion.\n",
|
|
ha->host_no));
|
|
DEBUG(printk(KERN_INFO
|
|
"scsi(%ld): [R|Z]IO update completion.\n",
|
|
ha->host_no));
|
|
|
|
if (IS_FWI2_CAPABLE(ha))
|
|
qla24xx_process_response_queue(ha);
|
|
else
|
|
qla2x00_process_response_queue(ha);
|
|
break;
|
|
|
|
case MBA_DISCARD_RND_FRAME:
|
|
DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x "
|
|
"%04x.\n", ha->host_no, mb[1], mb[2], mb[3]));
|
|
break;
|
|
|
|
case MBA_TRACE_NOTIFICATION:
|
|
DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n",
|
|
ha->host_no, mb[1], mb[2]));
|
|
break;
|
|
}
|
|
|
|
if (!ha->parent && ha->num_vhosts)
|
|
qla2x00_alert_all_vps(ha, mb);
|
|
}
|
|
|
|
static void
|
|
qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, void *data)
|
|
{
|
|
fc_port_t *fcport = data;
|
|
|
|
if (fcport->ha->max_q_depth <= sdev->queue_depth)
|
|
return;
|
|
|
|
if (sdev->ordered_tags)
|
|
scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG,
|
|
sdev->queue_depth + 1);
|
|
else
|
|
scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG,
|
|
sdev->queue_depth + 1);
|
|
|
|
fcport->last_ramp_up = jiffies;
|
|
|
|
DEBUG2(qla_printk(KERN_INFO, fcport->ha,
|
|
"scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
|
|
fcport->ha->host_no, sdev->channel, sdev->id, sdev->lun,
|
|
sdev->queue_depth));
|
|
}
|
|
|
|
static void
|
|
qla2x00_adjust_sdev_qdepth_down(struct scsi_device *sdev, void *data)
|
|
{
|
|
fc_port_t *fcport = data;
|
|
|
|
if (!scsi_track_queue_full(sdev, sdev->queue_depth - 1))
|
|
return;
|
|
|
|
DEBUG2(qla_printk(KERN_INFO, fcport->ha,
|
|
"scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
|
|
fcport->ha->host_no, sdev->channel, sdev->id, sdev->lun,
|
|
sdev->queue_depth));
|
|
}
|
|
|
|
static inline void
|
|
qla2x00_ramp_up_queue_depth(scsi_qla_host_t *ha, srb_t *sp)
|
|
{
|
|
fc_port_t *fcport;
|
|
struct scsi_device *sdev;
|
|
|
|
sdev = sp->cmd->device;
|
|
if (sdev->queue_depth >= ha->max_q_depth)
|
|
return;
|
|
|
|
fcport = sp->fcport;
|
|
if (time_before(jiffies,
|
|
fcport->last_ramp_up + ql2xqfullrampup * HZ))
|
|
return;
|
|
if (time_before(jiffies,
|
|
fcport->last_queue_full + ql2xqfullrampup * HZ))
|
|
return;
|
|
|
|
starget_for_each_device(sdev->sdev_target, fcport,
|
|
qla2x00_adjust_sdev_qdepth_up);
|
|
}
|
|
|
|
/**
|
|
* qla2x00_process_completed_request() - Process a Fast Post response.
|
|
* @ha: SCSI driver HA context
|
|
* @index: SRB index
|
|
*/
|
|
static void
|
|
qla2x00_process_completed_request(struct scsi_qla_host *ha, uint32_t index)
|
|
{
|
|
srb_t *sp;
|
|
|
|
/* Validate handle. */
|
|
if (index >= MAX_OUTSTANDING_COMMANDS) {
|
|
DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n",
|
|
ha->host_no, index));
|
|
qla_printk(KERN_WARNING, ha,
|
|
"Invalid SCSI completion handle %d.\n", index);
|
|
|
|
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
|
|
return;
|
|
}
|
|
|
|
sp = ha->outstanding_cmds[index];
|
|
if (sp) {
|
|
/* Free outstanding command slot. */
|
|
ha->outstanding_cmds[index] = NULL;
|
|
|
|
CMD_COMPL_STATUS(sp->cmd) = 0L;
|
|
CMD_SCSI_STATUS(sp->cmd) = 0L;
|
|
|
|
/* Save ISP completion status */
|
|
sp->cmd->result = DID_OK << 16;
|
|
|
|
qla2x00_ramp_up_queue_depth(ha, sp);
|
|
qla2x00_sp_compl(ha, sp);
|
|
} else {
|
|
DEBUG2(printk("scsi(%ld): Invalid ISP SCSI completion handle\n",
|
|
ha->host_no));
|
|
qla_printk(KERN_WARNING, ha,
|
|
"Invalid ISP SCSI completion handle\n");
|
|
|
|
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* qla2x00_process_response_queue() - Process response queue entries.
|
|
* @ha: SCSI driver HA context
|
|
*/
|
|
void
|
|
qla2x00_process_response_queue(struct scsi_qla_host *ha)
|
|
{
|
|
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
|
|
sts_entry_t *pkt;
|
|
uint16_t handle_cnt;
|
|
uint16_t cnt;
|
|
|
|
if (!ha->flags.online)
|
|
return;
|
|
|
|
while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) {
|
|
pkt = (sts_entry_t *)ha->response_ring_ptr;
|
|
|
|
ha->rsp_ring_index++;
|
|
if (ha->rsp_ring_index == ha->response_q_length) {
|
|
ha->rsp_ring_index = 0;
|
|
ha->response_ring_ptr = ha->response_ring;
|
|
} else {
|
|
ha->response_ring_ptr++;
|
|
}
|
|
|
|
if (pkt->entry_status != 0) {
|
|
DEBUG3(printk(KERN_INFO
|
|
"scsi(%ld): Process error entry.\n", ha->host_no));
|
|
|
|
qla2x00_error_entry(ha, pkt);
|
|
((response_t *)pkt)->signature = RESPONSE_PROCESSED;
|
|
wmb();
|
|
continue;
|
|
}
|
|
|
|
switch (pkt->entry_type) {
|
|
case STATUS_TYPE:
|
|
qla2x00_status_entry(ha, pkt);
|
|
break;
|
|
case STATUS_TYPE_21:
|
|
handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
|
|
for (cnt = 0; cnt < handle_cnt; cnt++) {
|
|
qla2x00_process_completed_request(ha,
|
|
((sts21_entry_t *)pkt)->handle[cnt]);
|
|
}
|
|
break;
|
|
case STATUS_TYPE_22:
|
|
handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
|
|
for (cnt = 0; cnt < handle_cnt; cnt++) {
|
|
qla2x00_process_completed_request(ha,
|
|
((sts22_entry_t *)pkt)->handle[cnt]);
|
|
}
|
|
break;
|
|
case STATUS_CONT_TYPE:
|
|
qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt);
|
|
break;
|
|
case MS_IOCB_TYPE:
|
|
qla2x00_ms_entry(ha, (ms_iocb_entry_t *)pkt);
|
|
break;
|
|
default:
|
|
/* Type Not Supported. */
|
|
DEBUG4(printk(KERN_WARNING
|
|
"scsi(%ld): Received unknown response pkt type %x "
|
|
"entry status=%x.\n",
|
|
ha->host_no, pkt->entry_type, pkt->entry_status));
|
|
break;
|
|
}
|
|
((response_t *)pkt)->signature = RESPONSE_PROCESSED;
|
|
wmb();
|
|
}
|
|
|
|
/* Adjust ring index */
|
|
WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), ha->rsp_ring_index);
|
|
}
|
|
|
|
static inline void
|
|
qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t sense_len)
|
|
{
|
|
struct scsi_cmnd *cp = sp->cmd;
|
|
|
|
if (sense_len >= SCSI_SENSE_BUFFERSIZE)
|
|
sense_len = SCSI_SENSE_BUFFERSIZE;
|
|
|
|
CMD_ACTUAL_SNSLEN(cp) = sense_len;
|
|
sp->request_sense_length = sense_len;
|
|
sp->request_sense_ptr = cp->sense_buffer;
|
|
if (sp->request_sense_length > 32)
|
|
sense_len = 32;
|
|
|
|
memcpy(cp->sense_buffer, sense_data, sense_len);
|
|
|
|
sp->request_sense_ptr += sense_len;
|
|
sp->request_sense_length -= sense_len;
|
|
if (sp->request_sense_length != 0)
|
|
sp->ha->status_srb = sp;
|
|
|
|
DEBUG5(printk("%s(): Check condition Sense data, scsi(%ld:%d:%d:%d) "
|
|
"cmd=%p pid=%ld\n", __func__, sp->ha->host_no, cp->device->channel,
|
|
cp->device->id, cp->device->lun, cp, cp->serial_number));
|
|
if (sense_len)
|
|
DEBUG5(qla2x00_dump_buffer(cp->sense_buffer,
|
|
CMD_ACTUAL_SNSLEN(cp)));
|
|
}
|
|
|
|
/**
|
|
* qla2x00_status_entry() - Process a Status IOCB entry.
|
|
* @ha: SCSI driver HA context
|
|
* @pkt: Entry pointer
|
|
*/
|
|
static void
|
|
qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt)
|
|
{
|
|
srb_t *sp;
|
|
fc_port_t *fcport;
|
|
struct scsi_cmnd *cp;
|
|
sts_entry_t *sts;
|
|
struct sts_entry_24xx *sts24;
|
|
uint16_t comp_status;
|
|
uint16_t scsi_status;
|
|
uint8_t lscsi_status;
|
|
int32_t resid;
|
|
uint32_t sense_len, rsp_info_len, resid_len, fw_resid_len;
|
|
uint8_t *rsp_info, *sense_data;
|
|
|
|
sts = (sts_entry_t *) pkt;
|
|
sts24 = (struct sts_entry_24xx *) pkt;
|
|
if (IS_FWI2_CAPABLE(ha)) {
|
|
comp_status = le16_to_cpu(sts24->comp_status);
|
|
scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
|
|
} else {
|
|
comp_status = le16_to_cpu(sts->comp_status);
|
|
scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
|
|
}
|
|
|
|
/* Fast path completion. */
|
|
if (comp_status == CS_COMPLETE && scsi_status == 0) {
|
|
qla2x00_process_completed_request(ha, sts->handle);
|
|
|
|
return;
|
|
}
|
|
|
|
/* Validate handle. */
|
|
if (sts->handle < MAX_OUTSTANDING_COMMANDS) {
|
|
sp = ha->outstanding_cmds[sts->handle];
|
|
ha->outstanding_cmds[sts->handle] = NULL;
|
|
} else
|
|
sp = NULL;
|
|
|
|
if (sp == NULL) {
|
|
DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n",
|
|
ha->host_no));
|
|
qla_printk(KERN_WARNING, ha, "Status Entry invalid handle.\n");
|
|
|
|
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
|
|
qla2xxx_wake_dpc(ha);
|
|
return;
|
|
}
|
|
cp = sp->cmd;
|
|
if (cp == NULL) {
|
|
DEBUG2(printk("scsi(%ld): Command already returned back to OS "
|
|
"pkt->handle=%d sp=%p.\n", ha->host_no, sts->handle, sp));
|
|
qla_printk(KERN_WARNING, ha,
|
|
"Command is NULL: already returned to OS (sp=%p)\n", sp);
|
|
|
|
return;
|
|
}
|
|
|
|
lscsi_status = scsi_status & STATUS_MASK;
|
|
CMD_ENTRY_STATUS(cp) = sts->entry_status;
|
|
CMD_COMPL_STATUS(cp) = comp_status;
|
|
CMD_SCSI_STATUS(cp) = scsi_status;
|
|
|
|
fcport = sp->fcport;
|
|
|
|
sense_len = rsp_info_len = resid_len = fw_resid_len = 0;
|
|
if (IS_FWI2_CAPABLE(ha)) {
|
|
sense_len = le32_to_cpu(sts24->sense_len);
|
|
rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
|
|
resid_len = le32_to_cpu(sts24->rsp_residual_count);
|
|
fw_resid_len = le32_to_cpu(sts24->residual_len);
|
|
rsp_info = sts24->data;
|
|
sense_data = sts24->data;
|
|
host_to_fcp_swap(sts24->data, sizeof(sts24->data));
|
|
} else {
|
|
sense_len = le16_to_cpu(sts->req_sense_length);
|
|
rsp_info_len = le16_to_cpu(sts->rsp_info_len);
|
|
resid_len = le32_to_cpu(sts->residual_length);
|
|
rsp_info = sts->rsp_info;
|
|
sense_data = sts->req_sense_data;
|
|
}
|
|
|
|
/* Check for any FCP transport errors. */
|
|
if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
|
|
/* Sense data lies beyond any FCP RESPONSE data. */
|
|
if (IS_FWI2_CAPABLE(ha))
|
|
sense_data += rsp_info_len;
|
|
if (rsp_info_len > 3 && rsp_info[3]) {
|
|
DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol "
|
|
"failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..."
|
|
"retrying command\n", ha->host_no,
|
|
cp->device->channel, cp->device->id,
|
|
cp->device->lun, rsp_info_len, rsp_info[0],
|
|
rsp_info[1], rsp_info[2], rsp_info[3], rsp_info[4],
|
|
rsp_info[5], rsp_info[6], rsp_info[7]));
|
|
|
|
cp->result = DID_BUS_BUSY << 16;
|
|
qla2x00_sp_compl(ha, sp);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* Check for overrun. */
|
|
if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
|
|
scsi_status & SS_RESIDUAL_OVER)
|
|
comp_status = CS_DATA_OVERRUN;
|
|
|
|
/*
|
|
* Based on Host and scsi status generate status code for Linux
|
|
*/
|
|
switch (comp_status) {
|
|
case CS_COMPLETE:
|
|
case CS_QUEUE_FULL:
|
|
if (scsi_status == 0) {
|
|
cp->result = DID_OK << 16;
|
|
break;
|
|
}
|
|
if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
|
|
resid = resid_len;
|
|
scsi_set_resid(cp, resid);
|
|
CMD_RESID_LEN(cp) = resid;
|
|
|
|
if (!lscsi_status &&
|
|
((unsigned)(scsi_bufflen(cp) - resid) <
|
|
cp->underflow)) {
|
|
qla_printk(KERN_INFO, ha,
|
|
"scsi(%ld:%d:%d:%d): Mid-layer underflow "
|
|
"detected (%x of %x bytes)...returning "
|
|
"error status.\n", ha->host_no,
|
|
cp->device->channel, cp->device->id,
|
|
cp->device->lun, resid,
|
|
scsi_bufflen(cp));
|
|
|
|
cp->result = DID_ERROR << 16;
|
|
break;
|
|
}
|
|
}
|
|
cp->result = DID_OK << 16 | lscsi_status;
|
|
|
|
if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
|
|
DEBUG2(printk(KERN_INFO
|
|
"scsi(%ld): QUEUE FULL status detected "
|
|
"0x%x-0x%x.\n", ha->host_no, comp_status,
|
|
scsi_status));
|
|
|
|
/* Adjust queue depth for all luns on the port. */
|
|
fcport->last_queue_full = jiffies;
|
|
starget_for_each_device(cp->device->sdev_target,
|
|
fcport, qla2x00_adjust_sdev_qdepth_down);
|
|
break;
|
|
}
|
|
if (lscsi_status != SS_CHECK_CONDITION)
|
|
break;
|
|
|
|
memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
|
|
if (!(scsi_status & SS_SENSE_LEN_VALID))
|
|
break;
|
|
|
|
qla2x00_handle_sense(sp, sense_data, sense_len);
|
|
break;
|
|
|
|
case CS_DATA_UNDERRUN:
|
|
resid = resid_len;
|
|
/* Use F/W calculated residual length. */
|
|
if (IS_FWI2_CAPABLE(ha)) {
|
|
if (scsi_status & SS_RESIDUAL_UNDER &&
|
|
resid != fw_resid_len) {
|
|
scsi_status &= ~SS_RESIDUAL_UNDER;
|
|
lscsi_status = 0;
|
|
}
|
|
resid = fw_resid_len;
|
|
}
|
|
|
|
if (scsi_status & SS_RESIDUAL_UNDER) {
|
|
scsi_set_resid(cp, resid);
|
|
CMD_RESID_LEN(cp) = resid;
|
|
} else {
|
|
DEBUG2(printk(KERN_INFO
|
|
"scsi(%ld:%d:%d) UNDERRUN status detected "
|
|
"0x%x-0x%x. resid=0x%x fw_resid=0x%x cdb=0x%x "
|
|
"os_underflow=0x%x\n", ha->host_no,
|
|
cp->device->id, cp->device->lun, comp_status,
|
|
scsi_status, resid_len, resid, cp->cmnd[0],
|
|
cp->underflow));
|
|
|
|
}
|
|
|
|
/*
|
|
* Check to see if SCSI Status is non zero. If so report SCSI
|
|
* Status.
|
|
*/
|
|
if (lscsi_status != 0) {
|
|
cp->result = DID_OK << 16 | lscsi_status;
|
|
|
|
if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
|
|
DEBUG2(printk(KERN_INFO
|
|
"scsi(%ld): QUEUE FULL status detected "
|
|
"0x%x-0x%x.\n", ha->host_no, comp_status,
|
|
scsi_status));
|
|
|
|
/*
|
|
* Adjust queue depth for all luns on the
|
|
* port.
|
|
*/
|
|
fcport->last_queue_full = jiffies;
|
|
starget_for_each_device(
|
|
cp->device->sdev_target, fcport,
|
|
qla2x00_adjust_sdev_qdepth_down);
|
|
break;
|
|
}
|
|
if (lscsi_status != SS_CHECK_CONDITION)
|
|
break;
|
|
|
|
memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
|
|
if (!(scsi_status & SS_SENSE_LEN_VALID))
|
|
break;
|
|
|
|
qla2x00_handle_sense(sp, sense_data, sense_len);
|
|
|
|
/*
|
|
* In case of a Underrun condition, set both the lscsi
|
|
* status and the completion status to appropriate
|
|
* values.
|
|
*/
|
|
if (resid &&
|
|
((unsigned)(scsi_bufflen(cp) - resid) <
|
|
cp->underflow)) {
|
|
DEBUG2(qla_printk(KERN_INFO, ha,
|
|
"scsi(%ld:%d:%d:%d): Mid-layer underflow "
|
|
"detected (%x of %x bytes)...returning "
|
|
"error status.\n", ha->host_no,
|
|
cp->device->channel, cp->device->id,
|
|
cp->device->lun, resid,
|
|
scsi_bufflen(cp)));
|
|
|
|
cp->result = DID_ERROR << 16 | lscsi_status;
|
|
}
|
|
} else {
|
|
/*
|
|
* If RISC reports underrun and target does not report
|
|
* it then we must have a lost frame, so tell upper
|
|
* layer to retry it by reporting a bus busy.
|
|
*/
|
|
if (!(scsi_status & SS_RESIDUAL_UNDER)) {
|
|
DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped "
|
|
"frame(s) detected (%x of %x bytes)..."
|
|
"retrying command.\n", ha->host_no,
|
|
cp->device->channel, cp->device->id,
|
|
cp->device->lun, resid,
|
|
scsi_bufflen(cp)));
|
|
|
|
cp->result = DID_BUS_BUSY << 16;
|
|
break;
|
|
}
|
|
|
|
/* Handle mid-layer underflow */
|
|
if ((unsigned)(scsi_bufflen(cp) - resid) <
|
|
cp->underflow) {
|
|
qla_printk(KERN_INFO, ha,
|
|
"scsi(%ld:%d:%d:%d): Mid-layer underflow "
|
|
"detected (%x of %x bytes)...returning "
|
|
"error status.\n", ha->host_no,
|
|
cp->device->channel, cp->device->id,
|
|
cp->device->lun, resid,
|
|
scsi_bufflen(cp));
|
|
|
|
cp->result = DID_ERROR << 16;
|
|
break;
|
|
}
|
|
|
|
/* Everybody online, looking good... */
|
|
cp->result = DID_OK << 16;
|
|
}
|
|
break;
|
|
|
|
case CS_DATA_OVERRUN:
|
|
DEBUG2(printk(KERN_INFO
|
|
"scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n",
|
|
ha->host_no, cp->device->id, cp->device->lun, comp_status,
|
|
scsi_status));
|
|
DEBUG2(printk(KERN_INFO
|
|
"CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
|
|
cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3],
|
|
cp->cmnd[4], cp->cmnd[5]));
|
|
DEBUG2(printk(KERN_INFO
|
|
"PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR "
|
|
"status!\n",
|
|
cp->serial_number, scsi_bufflen(cp), resid_len));
|
|
|
|
cp->result = DID_ERROR << 16;
|
|
break;
|
|
|
|
case CS_PORT_LOGGED_OUT:
|
|
case CS_PORT_CONFIG_CHG:
|
|
case CS_PORT_BUSY:
|
|
case CS_INCOMPLETE:
|
|
case CS_PORT_UNAVAILABLE:
|
|
/*
|
|
* If the port is in Target Down state, return all IOs for this
|
|
* Target with DID_NO_CONNECT ELSE Queue the IOs in the
|
|
* retry_queue.
|
|
*/
|
|
DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down "
|
|
"pid=%ld, compl status=0x%x, port state=0x%x\n",
|
|
ha->host_no, cp->device->id, cp->device->lun,
|
|
cp->serial_number, comp_status,
|
|
atomic_read(&fcport->state)));
|
|
|
|
cp->result = DID_BUS_BUSY << 16;
|
|
if (atomic_read(&fcport->state) == FCS_ONLINE) {
|
|
qla2x00_mark_device_lost(ha, fcport, 1, 1);
|
|
}
|
|
break;
|
|
|
|
case CS_RESET:
|
|
DEBUG2(printk(KERN_INFO
|
|
"scsi(%ld): RESET status detected 0x%x-0x%x.\n",
|
|
ha->host_no, comp_status, scsi_status));
|
|
|
|
cp->result = DID_RESET << 16;
|
|
break;
|
|
|
|
case CS_ABORTED:
|
|
/*
|
|
* hv2.19.12 - DID_ABORT does not retry the request if we
|
|
* aborted this request then abort otherwise it must be a
|
|
* reset.
|
|
*/
|
|
DEBUG2(printk(KERN_INFO
|
|
"scsi(%ld): ABORT status detected 0x%x-0x%x.\n",
|
|
ha->host_no, comp_status, scsi_status));
|
|
|
|
cp->result = DID_RESET << 16;
|
|
break;
|
|
|
|
case CS_TIMEOUT:
|
|
cp->result = DID_BUS_BUSY << 16;
|
|
|
|
if (IS_FWI2_CAPABLE(ha)) {
|
|
DEBUG2(printk(KERN_INFO
|
|
"scsi(%ld:%d:%d:%d): TIMEOUT status detected "
|
|
"0x%x-0x%x\n", ha->host_no, cp->device->channel,
|
|
cp->device->id, cp->device->lun, comp_status,
|
|
scsi_status));
|
|
break;
|
|
}
|
|
DEBUG2(printk(KERN_INFO
|
|
"scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x "
|
|
"sflags=%x.\n", ha->host_no, cp->device->channel,
|
|
cp->device->id, cp->device->lun, comp_status, scsi_status,
|
|
le16_to_cpu(sts->status_flags)));
|
|
|
|
/* Check to see if logout occurred. */
|
|
if ((le16_to_cpu(sts->status_flags) & SF_LOGOUT_SENT))
|
|
qla2x00_mark_device_lost(ha, fcport, 1, 1);
|
|
break;
|
|
|
|
default:
|
|
DEBUG3(printk("scsi(%ld): Error detected (unknown status) "
|
|
"0x%x-0x%x.\n", ha->host_no, comp_status, scsi_status));
|
|
qla_printk(KERN_INFO, ha,
|
|
"Unknown status detected 0x%x-0x%x.\n",
|
|
comp_status, scsi_status);
|
|
|
|
cp->result = DID_ERROR << 16;
|
|
break;
|
|
}
|
|
|
|
/* Place command on done queue. */
|
|
if (ha->status_srb == NULL)
|
|
qla2x00_sp_compl(ha, sp);
|
|
}
|
|
|
|
/**
|
|
* qla2x00_status_cont_entry() - Process a Status Continuations entry.
|
|
* @ha: SCSI driver HA context
|
|
* @pkt: Entry pointer
|
|
*
|
|
* Extended sense data.
|
|
*/
|
|
static void
|
|
qla2x00_status_cont_entry(scsi_qla_host_t *ha, sts_cont_entry_t *pkt)
|
|
{
|
|
uint8_t sense_sz = 0;
|
|
srb_t *sp = ha->status_srb;
|
|
struct scsi_cmnd *cp;
|
|
|
|
if (sp != NULL && sp->request_sense_length != 0) {
|
|
cp = sp->cmd;
|
|
if (cp == NULL) {
|
|
DEBUG2(printk("%s(): Cmd already returned back to OS "
|
|
"sp=%p.\n", __func__, sp));
|
|
qla_printk(KERN_INFO, ha,
|
|
"cmd is NULL: already returned to OS (sp=%p)\n",
|
|
sp);
|
|
|
|
ha->status_srb = NULL;
|
|
return;
|
|
}
|
|
|
|
if (sp->request_sense_length > sizeof(pkt->data)) {
|
|
sense_sz = sizeof(pkt->data);
|
|
} else {
|
|
sense_sz = sp->request_sense_length;
|
|
}
|
|
|
|
/* Move sense data. */
|
|
if (IS_FWI2_CAPABLE(ha))
|
|
host_to_fcp_swap(pkt->data, sizeof(pkt->data));
|
|
memcpy(sp->request_sense_ptr, pkt->data, sense_sz);
|
|
DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz));
|
|
|
|
sp->request_sense_ptr += sense_sz;
|
|
sp->request_sense_length -= sense_sz;
|
|
|
|
/* Place command on done queue. */
|
|
if (sp->request_sense_length == 0) {
|
|
ha->status_srb = NULL;
|
|
qla2x00_sp_compl(ha, sp);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* qla2x00_error_entry() - Process an error entry.
|
|
* @ha: SCSI driver HA context
|
|
* @pkt: Entry pointer
|
|
*/
|
|
static void
|
|
qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt)
|
|
{
|
|
srb_t *sp;
|
|
|
|
#if defined(QL_DEBUG_LEVEL_2)
|
|
if (pkt->entry_status & RF_INV_E_ORDER)
|
|
qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__);
|
|
else if (pkt->entry_status & RF_INV_E_COUNT)
|
|
qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__);
|
|
else if (pkt->entry_status & RF_INV_E_PARAM)
|
|
qla_printk(KERN_ERR, ha,
|
|
"%s: Invalid Entry Parameter\n", __func__);
|
|
else if (pkt->entry_status & RF_INV_E_TYPE)
|
|
qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__);
|
|
else if (pkt->entry_status & RF_BUSY)
|
|
qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__);
|
|
else
|
|
qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__);
|
|
#endif
|
|
|
|
/* Validate handle. */
|
|
if (pkt->handle < MAX_OUTSTANDING_COMMANDS)
|
|
sp = ha->outstanding_cmds[pkt->handle];
|
|
else
|
|
sp = NULL;
|
|
|
|
if (sp) {
|
|
/* Free outstanding command slot. */
|
|
ha->outstanding_cmds[pkt->handle] = NULL;
|
|
|
|
/* Bad payload or header */
|
|
if (pkt->entry_status &
|
|
(RF_INV_E_ORDER | RF_INV_E_COUNT |
|
|
RF_INV_E_PARAM | RF_INV_E_TYPE)) {
|
|
sp->cmd->result = DID_ERROR << 16;
|
|
} else if (pkt->entry_status & RF_BUSY) {
|
|
sp->cmd->result = DID_BUS_BUSY << 16;
|
|
} else {
|
|
sp->cmd->result = DID_ERROR << 16;
|
|
}
|
|
qla2x00_sp_compl(ha, sp);
|
|
|
|
} else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type ==
|
|
COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7) {
|
|
DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n",
|
|
ha->host_no));
|
|
qla_printk(KERN_WARNING, ha,
|
|
"Error entry - invalid handle\n");
|
|
|
|
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
|
|
qla2xxx_wake_dpc(ha);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* qla2x00_ms_entry() - Process a Management Server entry.
|
|
* @ha: SCSI driver HA context
|
|
* @index: Response queue out pointer
|
|
*/
|
|
static void
|
|
qla2x00_ms_entry(scsi_qla_host_t *ha, ms_iocb_entry_t *pkt)
|
|
{
|
|
srb_t *sp;
|
|
|
|
DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n",
|
|
__func__, ha->host_no, pkt, pkt->handle1));
|
|
|
|
/* Validate handle. */
|
|
if (pkt->handle1 < MAX_OUTSTANDING_COMMANDS)
|
|
sp = ha->outstanding_cmds[pkt->handle1];
|
|
else
|
|
sp = NULL;
|
|
|
|
if (sp == NULL) {
|
|
DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n",
|
|
ha->host_no));
|
|
qla_printk(KERN_WARNING, ha, "MS entry - invalid handle\n");
|
|
|
|
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
|
|
return;
|
|
}
|
|
|
|
CMD_COMPL_STATUS(sp->cmd) = le16_to_cpu(pkt->status);
|
|
CMD_ENTRY_STATUS(sp->cmd) = pkt->entry_status;
|
|
|
|
/* Free outstanding command slot. */
|
|
ha->outstanding_cmds[pkt->handle1] = NULL;
|
|
|
|
qla2x00_sp_compl(ha, sp);
|
|
}
|
|
|
|
|
|
/**
|
|
* qla24xx_mbx_completion() - Process mailbox command completions.
|
|
* @ha: SCSI driver HA context
|
|
* @mb0: Mailbox0 register
|
|
*/
|
|
static void
|
|
qla24xx_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0)
|
|
{
|
|
uint16_t cnt;
|
|
uint16_t __iomem *wptr;
|
|
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
|
|
|
|
/* Load return mailbox registers. */
|
|
ha->flags.mbox_int = 1;
|
|
ha->mailbox_out[0] = mb0;
|
|
wptr = (uint16_t __iomem *)®->mailbox1;
|
|
|
|
for (cnt = 1; cnt < ha->mbx_count; cnt++) {
|
|
ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
|
|
wptr++;
|
|
}
|
|
|
|
if (ha->mcp) {
|
|
DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
|
|
__func__, ha->host_no, ha->mcp->mb[0]));
|
|
} else {
|
|
DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
|
|
__func__, ha->host_no));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* qla24xx_process_response_queue() - Process response queue entries.
|
|
* @ha: SCSI driver HA context
|
|
*/
|
|
void
|
|
qla24xx_process_response_queue(struct scsi_qla_host *ha)
|
|
{
|
|
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
|
|
struct sts_entry_24xx *pkt;
|
|
|
|
if (!ha->flags.online)
|
|
return;
|
|
|
|
while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) {
|
|
pkt = (struct sts_entry_24xx *)ha->response_ring_ptr;
|
|
|
|
ha->rsp_ring_index++;
|
|
if (ha->rsp_ring_index == ha->response_q_length) {
|
|
ha->rsp_ring_index = 0;
|
|
ha->response_ring_ptr = ha->response_ring;
|
|
} else {
|
|
ha->response_ring_ptr++;
|
|
}
|
|
|
|
if (pkt->entry_status != 0) {
|
|
DEBUG3(printk(KERN_INFO
|
|
"scsi(%ld): Process error entry.\n", ha->host_no));
|
|
|
|
qla2x00_error_entry(ha, (sts_entry_t *) pkt);
|
|
((response_t *)pkt)->signature = RESPONSE_PROCESSED;
|
|
wmb();
|
|
continue;
|
|
}
|
|
|
|
switch (pkt->entry_type) {
|
|
case STATUS_TYPE:
|
|
qla2x00_status_entry(ha, pkt);
|
|
break;
|
|
case STATUS_CONT_TYPE:
|
|
qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt);
|
|
break;
|
|
case MS_IOCB_TYPE:
|
|
qla24xx_ms_entry(ha, (struct ct_entry_24xx *)pkt);
|
|
break;
|
|
case VP_RPT_ID_IOCB_TYPE:
|
|
qla24xx_report_id_acquisition(ha,
|
|
(struct vp_rpt_id_entry_24xx *)pkt);
|
|
break;
|
|
default:
|
|
/* Type Not Supported. */
|
|
DEBUG4(printk(KERN_WARNING
|
|
"scsi(%ld): Received unknown response pkt type %x "
|
|
"entry status=%x.\n",
|
|
ha->host_no, pkt->entry_type, pkt->entry_status));
|
|
break;
|
|
}
|
|
((response_t *)pkt)->signature = RESPONSE_PROCESSED;
|
|
wmb();
|
|
}
|
|
|
|
/* Adjust ring index */
|
|
WRT_REG_DWORD(®->rsp_q_out, ha->rsp_ring_index);
|
|
}
|
|
|
|
static void
|
|
qla2xxx_check_risc_status(scsi_qla_host_t *ha)
|
|
{
|
|
int rval;
|
|
uint32_t cnt;
|
|
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
|
|
|
|
if (!IS_QLA25XX(ha))
|
|
return;
|
|
|
|
rval = QLA_SUCCESS;
|
|
WRT_REG_DWORD(®->iobase_addr, 0x7C00);
|
|
RD_REG_DWORD(®->iobase_addr);
|
|
WRT_REG_DWORD(®->iobase_window, 0x0001);
|
|
for (cnt = 10000; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 &&
|
|
rval == QLA_SUCCESS; cnt--) {
|
|
if (cnt) {
|
|
WRT_REG_DWORD(®->iobase_window, 0x0001);
|
|
udelay(10);
|
|
} else
|
|
rval = QLA_FUNCTION_TIMEOUT;
|
|
}
|
|
if (rval == QLA_SUCCESS)
|
|
goto next_test;
|
|
|
|
WRT_REG_DWORD(®->iobase_window, 0x0003);
|
|
for (cnt = 100; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 &&
|
|
rval == QLA_SUCCESS; cnt--) {
|
|
if (cnt) {
|
|
WRT_REG_DWORD(®->iobase_window, 0x0003);
|
|
udelay(10);
|
|
} else
|
|
rval = QLA_FUNCTION_TIMEOUT;
|
|
}
|
|
if (rval != QLA_SUCCESS)
|
|
goto done;
|
|
|
|
next_test:
|
|
if (RD_REG_DWORD(®->iobase_c8) & BIT_3)
|
|
qla_printk(KERN_INFO, ha, "Additional code -- 0x55AA.\n");
|
|
|
|
done:
|
|
WRT_REG_DWORD(®->iobase_window, 0x0000);
|
|
RD_REG_DWORD(®->iobase_window);
|
|
}
|
|
|
|
/**
|
|
* qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
|
|
* @irq:
|
|
* @dev_id: SCSI driver HA context
|
|
*
|
|
* Called by system whenever the host adapter generates an interrupt.
|
|
*
|
|
* Returns handled flag.
|
|
*/
|
|
irqreturn_t
|
|
qla24xx_intr_handler(int irq, void *dev_id)
|
|
{
|
|
scsi_qla_host_t *ha;
|
|
struct device_reg_24xx __iomem *reg;
|
|
int status;
|
|
unsigned long flags;
|
|
unsigned long iter;
|
|
uint32_t stat;
|
|
uint32_t hccr;
|
|
uint16_t mb[4];
|
|
|
|
ha = (scsi_qla_host_t *) dev_id;
|
|
if (!ha) {
|
|
printk(KERN_INFO
|
|
"%s(): NULL host pointer\n", __func__);
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
reg = &ha->iobase->isp24;
|
|
status = 0;
|
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
for (iter = 50; iter--; ) {
|
|
stat = RD_REG_DWORD(®->host_status);
|
|
if (stat & HSRX_RISC_PAUSED) {
|
|
if (pci_channel_offline(ha->pdev))
|
|
break;
|
|
|
|
hccr = RD_REG_DWORD(®->hccr);
|
|
|
|
qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
|
|
"Dumping firmware!\n", hccr);
|
|
|
|
qla2xxx_check_risc_status(ha);
|
|
|
|
ha->isp_ops->fw_dump(ha, 1);
|
|
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
|
|
break;
|
|
} else if ((stat & HSRX_RISC_INT) == 0)
|
|
break;
|
|
|
|
switch (stat & 0xff) {
|
|
case 0x1:
|
|
case 0x2:
|
|
case 0x10:
|
|
case 0x11:
|
|
qla24xx_mbx_completion(ha, MSW(stat));
|
|
status |= MBX_INTERRUPT;
|
|
|
|
break;
|
|
case 0x12:
|
|
mb[0] = MSW(stat);
|
|
mb[1] = RD_REG_WORD(®->mailbox1);
|
|
mb[2] = RD_REG_WORD(®->mailbox2);
|
|
mb[3] = RD_REG_WORD(®->mailbox3);
|
|
qla2x00_async_event(ha, mb);
|
|
break;
|
|
case 0x13:
|
|
qla24xx_process_response_queue(ha);
|
|
break;
|
|
default:
|
|
DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
|
|
"(%d).\n",
|
|
ha->host_no, stat & 0xff));
|
|
break;
|
|
}
|
|
WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
|
|
RD_REG_DWORD_RELAXED(®->hccr);
|
|
}
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
|
|
(status & MBX_INTERRUPT) && ha->flags.mbox_int) {
|
|
set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
|
|
complete(&ha->mbx_intr_comp);
|
|
}
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/**
|
|
* qla24xx_ms_entry() - Process a Management Server entry.
|
|
* @ha: SCSI driver HA context
|
|
* @index: Response queue out pointer
|
|
*/
|
|
static void
|
|
qla24xx_ms_entry(scsi_qla_host_t *ha, struct ct_entry_24xx *pkt)
|
|
{
|
|
srb_t *sp;
|
|
|
|
DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n",
|
|
__func__, ha->host_no, pkt, pkt->handle));
|
|
|
|
DEBUG9(printk("%s: ct pkt dump:\n", __func__));
|
|
DEBUG9(qla2x00_dump_buffer((void *)pkt, sizeof(struct ct_entry_24xx)));
|
|
|
|
/* Validate handle. */
|
|
if (pkt->handle < MAX_OUTSTANDING_COMMANDS)
|
|
sp = ha->outstanding_cmds[pkt->handle];
|
|
else
|
|
sp = NULL;
|
|
|
|
if (sp == NULL) {
|
|
DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n",
|
|
ha->host_no));
|
|
DEBUG10(printk("scsi(%ld): MS entry - invalid handle\n",
|
|
ha->host_no));
|
|
qla_printk(KERN_WARNING, ha, "MS entry - invalid handle %d\n",
|
|
pkt->handle);
|
|
|
|
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
|
|
return;
|
|
}
|
|
|
|
CMD_COMPL_STATUS(sp->cmd) = le16_to_cpu(pkt->comp_status);
|
|
CMD_ENTRY_STATUS(sp->cmd) = pkt->entry_status;
|
|
|
|
/* Free outstanding command slot. */
|
|
ha->outstanding_cmds[pkt->handle] = NULL;
|
|
|
|
qla2x00_sp_compl(ha, sp);
|
|
}
|
|
|
|
static irqreturn_t
|
|
qla24xx_msix_rsp_q(int irq, void *dev_id)
|
|
{
|
|
scsi_qla_host_t *ha;
|
|
struct device_reg_24xx __iomem *reg;
|
|
unsigned long flags;
|
|
|
|
ha = dev_id;
|
|
reg = &ha->iobase->isp24;
|
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
|
|
qla24xx_process_response_queue(ha);
|
|
|
|
WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
|
|
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static irqreturn_t
|
|
qla24xx_msix_default(int irq, void *dev_id)
|
|
{
|
|
scsi_qla_host_t *ha;
|
|
struct device_reg_24xx __iomem *reg;
|
|
int status;
|
|
unsigned long flags;
|
|
uint32_t stat;
|
|
uint32_t hccr;
|
|
uint16_t mb[4];
|
|
|
|
ha = dev_id;
|
|
reg = &ha->iobase->isp24;
|
|
status = 0;
|
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
do {
|
|
stat = RD_REG_DWORD(®->host_status);
|
|
if (stat & HSRX_RISC_PAUSED) {
|
|
if (pci_channel_offline(ha->pdev))
|
|
break;
|
|
|
|
hccr = RD_REG_DWORD(®->hccr);
|
|
|
|
qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
|
|
"Dumping firmware!\n", hccr);
|
|
|
|
qla2xxx_check_risc_status(ha);
|
|
|
|
ha->isp_ops->fw_dump(ha, 1);
|
|
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
|
|
break;
|
|
} else if ((stat & HSRX_RISC_INT) == 0)
|
|
break;
|
|
|
|
switch (stat & 0xff) {
|
|
case 0x1:
|
|
case 0x2:
|
|
case 0x10:
|
|
case 0x11:
|
|
qla24xx_mbx_completion(ha, MSW(stat));
|
|
status |= MBX_INTERRUPT;
|
|
|
|
break;
|
|
case 0x12:
|
|
mb[0] = MSW(stat);
|
|
mb[1] = RD_REG_WORD(®->mailbox1);
|
|
mb[2] = RD_REG_WORD(®->mailbox2);
|
|
mb[3] = RD_REG_WORD(®->mailbox3);
|
|
qla2x00_async_event(ha, mb);
|
|
break;
|
|
case 0x13:
|
|
qla24xx_process_response_queue(ha);
|
|
break;
|
|
default:
|
|
DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
|
|
"(%d).\n",
|
|
ha->host_no, stat & 0xff));
|
|
break;
|
|
}
|
|
WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
|
|
} while (0);
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
|
|
(status & MBX_INTERRUPT) && ha->flags.mbox_int) {
|
|
set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
|
|
complete(&ha->mbx_intr_comp);
|
|
}
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/* Interrupt handling helpers. */
|
|
|
|
struct qla_init_msix_entry {
|
|
uint16_t entry;
|
|
uint16_t index;
|
|
const char *name;
|
|
irq_handler_t handler;
|
|
};
|
|
|
|
static struct qla_init_msix_entry imsix_entries[QLA_MSIX_ENTRIES] = {
|
|
{ QLA_MSIX_DEFAULT, QLA_MIDX_DEFAULT,
|
|
"qla2xxx (default)", qla24xx_msix_default },
|
|
|
|
{ QLA_MSIX_RSP_Q, QLA_MIDX_RSP_Q,
|
|
"qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
|
|
};
|
|
|
|
static void
|
|
qla24xx_disable_msix(scsi_qla_host_t *ha)
|
|
{
|
|
int i;
|
|
struct qla_msix_entry *qentry;
|
|
|
|
for (i = 0; i < QLA_MSIX_ENTRIES; i++) {
|
|
qentry = &ha->msix_entries[imsix_entries[i].index];
|
|
if (qentry->have_irq)
|
|
free_irq(qentry->msix_vector, ha);
|
|
}
|
|
pci_disable_msix(ha->pdev);
|
|
}
|
|
|
|
static int
|
|
qla24xx_enable_msix(scsi_qla_host_t *ha)
|
|
{
|
|
int i, ret;
|
|
struct msix_entry entries[QLA_MSIX_ENTRIES];
|
|
struct qla_msix_entry *qentry;
|
|
|
|
for (i = 0; i < QLA_MSIX_ENTRIES; i++)
|
|
entries[i].entry = imsix_entries[i].entry;
|
|
|
|
ret = pci_enable_msix(ha->pdev, entries, ARRAY_SIZE(entries));
|
|
if (ret) {
|
|
qla_printk(KERN_WARNING, ha,
|
|
"MSI-X: Failed to enable support -- %d/%d\n",
|
|
QLA_MSIX_ENTRIES, ret);
|
|
goto msix_out;
|
|
}
|
|
ha->flags.msix_enabled = 1;
|
|
|
|
for (i = 0; i < QLA_MSIX_ENTRIES; i++) {
|
|
qentry = &ha->msix_entries[imsix_entries[i].index];
|
|
qentry->msix_vector = entries[i].vector;
|
|
qentry->msix_entry = entries[i].entry;
|
|
qentry->have_irq = 0;
|
|
ret = request_irq(qentry->msix_vector,
|
|
imsix_entries[i].handler, 0, imsix_entries[i].name, ha);
|
|
if (ret) {
|
|
qla_printk(KERN_WARNING, ha,
|
|
"MSI-X: Unable to register handler -- %x/%d.\n",
|
|
imsix_entries[i].index, ret);
|
|
qla24xx_disable_msix(ha);
|
|
goto msix_out;
|
|
}
|
|
qentry->have_irq = 1;
|
|
}
|
|
|
|
msix_out:
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
qla2x00_request_irqs(scsi_qla_host_t *ha)
|
|
{
|
|
int ret;
|
|
device_reg_t __iomem *reg = ha->iobase;
|
|
unsigned long flags;
|
|
|
|
/* If possible, enable MSI-X. */
|
|
if (!IS_QLA2432(ha) && !IS_QLA2532(ha))
|
|
goto skip_msix;
|
|
|
|
if (IS_QLA2432(ha) && (ha->chip_revision < QLA_MSIX_CHIP_REV_24XX ||
|
|
!QLA_MSIX_FW_MODE_1(ha->fw_attributes))) {
|
|
DEBUG2(qla_printk(KERN_WARNING, ha,
|
|
"MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n",
|
|
ha->chip_revision, ha->fw_attributes));
|
|
|
|
goto skip_msix;
|
|
}
|
|
|
|
if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
|
|
(ha->pdev->subsystem_device == 0x7040 ||
|
|
ha->pdev->subsystem_device == 0x7041 ||
|
|
ha->pdev->subsystem_device == 0x1705)) {
|
|
DEBUG2(qla_printk(KERN_WARNING, ha,
|
|
"MSI-X: Unsupported ISP2432 SSVID/SSDID (0x%X, 0x%X).\n",
|
|
ha->pdev->subsystem_vendor,
|
|
ha->pdev->subsystem_device));
|
|
|
|
goto skip_msi;
|
|
}
|
|
|
|
ret = qla24xx_enable_msix(ha);
|
|
if (!ret) {
|
|
DEBUG2(qla_printk(KERN_INFO, ha,
|
|
"MSI-X: Enabled (0x%X, 0x%X).\n", ha->chip_revision,
|
|
ha->fw_attributes));
|
|
goto clear_risc_ints;
|
|
}
|
|
qla_printk(KERN_WARNING, ha,
|
|
"MSI-X: Falling back-to INTa mode -- %d.\n", ret);
|
|
skip_msix:
|
|
|
|
if (!IS_QLA24XX(ha) && !IS_QLA2532(ha))
|
|
goto skip_msi;
|
|
|
|
ret = pci_enable_msi(ha->pdev);
|
|
if (!ret) {
|
|
DEBUG2(qla_printk(KERN_INFO, ha, "MSI: Enabled.\n"));
|
|
ha->flags.msi_enabled = 1;
|
|
}
|
|
skip_msi:
|
|
|
|
ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
|
|
IRQF_DISABLED|IRQF_SHARED, QLA2XXX_DRIVER_NAME, ha);
|
|
if (ret) {
|
|
qla_printk(KERN_WARNING, ha,
|
|
"Failed to reserve interrupt %d already in use.\n",
|
|
ha->pdev->irq);
|
|
goto fail;
|
|
}
|
|
ha->flags.inta_enabled = 1;
|
|
ha->host->irq = ha->pdev->irq;
|
|
clear_risc_ints:
|
|
|
|
ha->isp_ops->disable_intrs(ha);
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
if (IS_FWI2_CAPABLE(ha)) {
|
|
WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_HOST_INT);
|
|
WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_RISC_INT);
|
|
} else {
|
|
WRT_REG_WORD(®->isp.semaphore, 0);
|
|
WRT_REG_WORD(®->isp.hccr, HCCR_CLR_RISC_INT);
|
|
WRT_REG_WORD(®->isp.hccr, HCCR_CLR_HOST_INT);
|
|
}
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
ha->isp_ops->enable_intrs(ha);
|
|
|
|
fail:
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
qla2x00_free_irqs(scsi_qla_host_t *ha)
|
|
{
|
|
|
|
if (ha->flags.msix_enabled)
|
|
qla24xx_disable_msix(ha);
|
|
else if (ha->flags.inta_enabled) {
|
|
free_irq(ha->host->irq, ha);
|
|
pci_disable_msi(ha->pdev);
|
|
}
|
|
}
|