redonkable/alistair23-linux
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[SCSI] qla2xxx: Proper cleanup of pass through commands when firmware returns error.

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[jejb: fixed up checkpatch and casting errors]
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Giridhar Malavali 2011-11-18 09:03:08 -08:00 committed by James Bottomley
parent cfb0919c12
commit c4631191c4
2 changed files with 61 additions and 31 deletions
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73
drivers/scsi/qla2xxx/qla_isr.c
View file

@ -1895,6 +1895,45 @@ qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
}
}
static int
qla2x00_free_sp_ctx(scsi_qla_host_t *vha, srb_t *sp)
{
struct qla_hw_data *ha = vha->hw;
struct srb_ctx *ctx;
if (!sp->ctx)
return 1;
ctx = sp->ctx;
if (ctx->type == SRB_LOGIN_CMD ||
ctx->type == SRB_LOGOUT_CMD ||
ctx->type == SRB_TM_CMD) {
ctx->u.iocb_cmd->done(sp);
return 0;
} else if (ctx->type == SRB_ADISC_CMD) {
ctx->u.iocb_cmd->free(sp);
return 0;
} else {
struct fc_bsg_job *bsg_job;
bsg_job = ctx->u.bsg_job;
if (ctx->type == SRB_ELS_CMD_HST ||
ctx->type == SRB_CT_CMD)
kfree(sp->fcport);
bsg_job->reply->reply_data.ctels_reply.status =
FC_CTELS_STATUS_OK;
bsg_job->reply->result = DID_ERROR << 16;
bsg_job->reply->reply_payload_rcv_len = 0;
kfree(sp->ctx);
mempool_free(sp, ha->srb_mempool);
bsg_job->job_done(bsg_job);
return 0;
}
return 1;
}
/**
* qla2x00_error_entry() - Process an error entry.
* @ha: SCSI driver HA context
@ -1905,7 +1944,7 @@ qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
{
srb_t *sp;
struct qla_hw_data *ha = vha->hw;
uint32_t handle = LSW(pkt->handle);
const char func[] = "ERROR-IOCB";
uint16_t que = MSW(pkt->handle);
struct req_que *req = ha->req_q_map[que];
@ -1928,28 +1967,20 @@ qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
ql_dbg(ql_dbg_async, vha, 0x502f,
"UNKNOWN flag error.\n");
/* Validate handle. */
if (handle < MAX_OUTSTANDING_COMMANDS)
sp = req->outstanding_cmds[handle];
else
sp = NULL;
sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
if (sp) {
/* Free outstanding command slot. */
req->outstanding_cmds[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;
if (qla2x00_free_sp_ctx(vha, sp)) {
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);
}
qla2x00_sp_compl(ha, sp);
} else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type ==
COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7
|| pkt->entry_type == COMMAND_TYPE_6) {

19
drivers/scsi/qla2xxx/qla_os.c
View file

@ -3690,16 +3690,6 @@ qla2x00_sp_free_dma(srb_t *sp)
sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
}
CMD_SP(cmd) = NULL;
}
static void
qla2x00_sp_final_compl(struct qla_hw_data *ha, srb_t *sp)
{
struct scsi_cmnd *cmd = sp->cmd;
qla2x00_sp_free_dma(sp);
if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
struct ct6_dsd *ctx = sp->ctx;
dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd,
@ -3711,6 +3701,15 @@ qla2x00_sp_final_compl(struct qla_hw_data *ha, srb_t *sp)
sp->ctx = NULL;
}
CMD_SP(cmd) = NULL;
}
static void
qla2x00_sp_final_compl(struct qla_hw_data *ha, srb_t *sp)
{
struct scsi_cmnd *cmd = sp->cmd;
qla2x00_sp_free_dma(sp);
mempool_free(sp, ha->srb_mempool);
cmd->scsi_done(cmd);
}