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authorAndrew Vasquez <andrew.vasquez@qlogic.com>2009-08-20 11:06:04 -0700
committerJames Bottomley <James.Bottomley@suse.de>2009-09-05 09:41:55 -0500
commitcf53b069f52ae3f83dec1acd339e3c3a2e979478 (patch)
tree98764fcfd96cacf5aa2f7874deddf4ac558c5a83 /drivers/scsi
parentdc162b63bfc4201ca5c13df3fc8836c56979eb07 (diff)
[SCSI] qla2xxx: Generalize srb structure usage.
Lay groundwork for adding alternative asynchronous operations by generalize and extending the SRB structure. This allows for follow-on patches to add support for: - Asynchronous logins. - ELS/CT passthru requests. - Loopback requests. - Non-blocking mailbox commands (ABTS, Task Management, etc). Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/qla2xxx/qla_def.h3
-rw-r--r--drivers/scsi/qla2xxx/qla_iocb.c2
-rw-r--r--drivers/scsi/qla2xxx/qla_os.c11
3 files changed, 14 insertions, 2 deletions
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 68ab28c8152..9eb7be684f0 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -189,6 +189,7 @@ struct req_que;
*/
typedef struct srb {
struct fc_port *fcport;
+ uint32_t handle;
struct scsi_cmnd *cmd; /* Linux SCSI command pkt */
@@ -196,6 +197,8 @@ typedef struct srb {
uint32_t request_sense_length;
uint8_t *request_sense_ptr;
+
+ void *ctx;
} srb_t;
/*
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index c0ba370b23c..d37554ecd31 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -350,6 +350,7 @@ qla2x00_start_scsi(srb_t *sp)
/* Build command packet */
req->current_outstanding_cmd = handle;
req->outstanding_cmds[handle] = sp;
+ sp->handle = handle;
sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle;
req->cnt -= req_cnt;
@@ -778,6 +779,7 @@ qla24xx_start_scsi(srb_t *sp)
/* Build command packet. */
req->current_outstanding_cmd = handle;
req->outstanding_cmds[handle] = sp;
+ sp->handle = handle;
sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle;
req->cnt -= req_cnt;
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index d7b271339a5..b6c088caf35 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -473,6 +473,7 @@ qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
sp->flags = 0;
CMD_SP(cmd) = (void *)sp;
cmd->scsi_done = done;
+ sp->ctx = NULL;
return sp;
}
@@ -709,6 +710,8 @@ qla2x00_abort_fcport_cmds(fc_port_t *fcport)
continue;
if (sp->fcport != fcport)
continue;
+ if (sp->ctx)
+ continue;
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (ha->isp_ops->abort_command(sp)) {
@@ -794,7 +797,8 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
if (sp == NULL)
continue;
-
+ if (sp->ctx)
+ continue;
if (sp->cmd != cmd)
continue;
@@ -859,7 +863,8 @@ qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
sp = req->outstanding_cmds[cnt];
if (!sp)
continue;
-
+ if (sp->ctx)
+ continue;
if (vha->vp_idx != sp->fcport->vha->vp_idx)
continue;
match = 0;
@@ -2986,6 +2991,8 @@ qla2x00_timer(scsi_qla_host_t *vha)
sp = req->outstanding_cmds[index];
if (!sp)
continue;
+ if (sp->ctx)
+ continue;
sfcp = sp->fcport;
if (!(sfcp->flags & FCF_TAPE_PRESENT))
continue;