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-rw-r--r--drivers/scsi/lpfc/lpfc.h1
-rw-r--r--drivers/scsi/lpfc/lpfc_attr.c11
-rw-r--r--drivers/scsi/lpfc/lpfc_mbox.c3
-rw-r--r--drivers/scsi/lpfc/lpfc_scsi.c45
4 files changed, 53 insertions, 7 deletions
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index f8de0d10620b..487780ede17e 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -915,6 +915,7 @@ struct lpfc_hba {
uint32_t cfg_request_firmware_upgrade;
uint32_t cfg_suppress_link_up;
uint32_t cfg_rrq_xri_bitmap_sz;
+ u32 cfg_fcp_wait_abts_rsp;
uint32_t cfg_delay_discovery;
uint32_t cfg_sli_mode;
#define LPFC_INITIALIZE_LINK 0 /* do normal init_link mbox */
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 0975a8b252a0..c5e96cb904c8 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -3449,6 +3449,15 @@ LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2,
"FCF Fast failover=1 Priority failover=2");
/*
+ * lpfc_fcp_wait_abts_rsp: Modifies criteria for reporting completion of
+ * aborted IO.
+ * The range is [0,1]. Default value is 0
+ * 0, IO completes after ABTS issued (default).
+ * 1, IO completes after receipt of ABTS response or timeout.
+ */
+LPFC_ATTR_R(fcp_wait_abts_rsp, 0, 0, 1, "Wait for FCP ABTS completion");
+
+/*
# lpfc_enable_rrq: Track XRI/OXID reuse after IO failures
# 0x0 = disabled, XRI/OXID use not tracked.
# 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent.
@@ -6205,6 +6214,7 @@ struct device_attribute *lpfc_hba_attrs[] = {
&dev_attr_lpfc_enable_npiv,
&dev_attr_lpfc_fcf_failover_policy,
&dev_attr_lpfc_enable_rrq,
+ &dev_attr_lpfc_fcp_wait_abts_rsp,
&dev_attr_nport_evt_cnt,
&dev_attr_board_mode,
&dev_attr_max_vpi,
@@ -7332,6 +7342,7 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy);
lpfc_enable_rrq_init(phba, lpfc_enable_rrq);
+ lpfc_fcp_wait_abts_rsp_init(phba, lpfc_fcp_wait_abts_rsp);
lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN);
lpfc_use_msi_init(phba, lpfc_use_msi);
diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c
index 1b40a3bbd1cd..eab991739e37 100644
--- a/drivers/scsi/lpfc/lpfc_mbox.c
+++ b/drivers/scsi/lpfc/lpfc_mbox.c
@@ -522,7 +522,8 @@ lpfc_init_link(struct lpfc_hba * phba,
}
/* Enable asynchronous ABTS responses from firmware */
- mb->un.varInitLnk.link_flags |= FLAGS_IMED_ABORT;
+ if (phba->sli_rev == LPFC_SLI_REV3 && !phba->cfg_fcp_wait_abts_rsp)
+ mb->un.varInitLnk.link_flags |= FLAGS_IMED_ABORT;
/* NEW_FEATURE
* Setting up the link speed
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index eefbb9b22798..b8bb012abb33 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -518,6 +518,7 @@ lpfc_sli4_io_xri_aborted(struct lpfc_hba *phba,
struct lpfc_nodelist *ndlp;
int rrq_empty = 0;
struct lpfc_sli_ring *pring = phba->sli4_hba.els_wq->pring;
+ struct scsi_cmnd *cmd;
if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
return;
@@ -553,6 +554,31 @@ lpfc_sli4_io_xri_aborted(struct lpfc_hba *phba,
psb->cur_iocbq.sli4_lxritag, rxid, 1);
lpfc_sli4_abts_err_handler(phba, ndlp, axri);
}
+
+ if (phba->cfg_fcp_wait_abts_rsp) {
+ spin_lock_irqsave(&psb->buf_lock, iflag);
+ cmd = psb->pCmd;
+ psb->pCmd = NULL;
+ spin_unlock_irqrestore(&psb->buf_lock, iflag);
+
+ /* The sdev is not guaranteed to be valid post
+ * scsi_done upcall.
+ */
+ if (cmd)
+ cmd->scsi_done(cmd);
+
+ /*
+ * We expect there is an abort thread waiting
+ * for command completion wake up the thread.
+ */
+ spin_lock_irqsave(&psb->buf_lock, iflag);
+ psb->cur_iocbq.iocb_flag &=
+ ~LPFC_DRIVER_ABORTED;
+ if (psb->waitq)
+ wake_up(psb->waitq);
+ spin_unlock_irqrestore(&psb->buf_lock, iflag);
+ }
+
lpfc_release_scsi_buf_s4(phba, psb);
if (rrq_empty)
lpfc_worker_wake_up(phba);
@@ -780,7 +806,8 @@ lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_io_buf *psb)
qp = psb->hdwq;
if (psb->flags & LPFC_SBUF_XBUSY) {
spin_lock_irqsave(&qp->abts_io_buf_list_lock, iflag);
- psb->pCmd = NULL;
+ if (!phba->cfg_fcp_wait_abts_rsp)
+ psb->pCmd = NULL;
list_add_tail(&psb->list, &qp->lpfc_abts_io_buf_list);
qp->abts_scsi_io_bufs++;
spin_unlock_irqrestore(&qp->abts_io_buf_list_lock, iflag);
@@ -4045,6 +4072,7 @@ lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn,
u32 logit = LOG_FCP;
u32 status, idx;
unsigned long iflags = 0;
+ u8 wait_xb_clr = 0;
/* Sanity check on return of outstanding command */
if (!lpfc_cmd) {
@@ -4096,8 +4124,11 @@ lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn,
lpfc_cmd->result = (wcqe->parameter & IOERR_PARAM_MASK);
lpfc_cmd->flags &= ~LPFC_SBUF_XBUSY;
- if (bf_get(lpfc_wcqe_c_xb, wcqe))
+ if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
lpfc_cmd->flags |= LPFC_SBUF_XBUSY;
+ if (phba->cfg_fcp_wait_abts_rsp)
+ wait_xb_clr = 1;
+ }
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (lpfc_cmd->prot_data_type) {
@@ -4329,6 +4360,8 @@ lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn,
lpfc_io_ktime(phba, lpfc_cmd);
}
#endif
+ if (wait_xb_clr)
+ goto out;
lpfc_cmd->pCmd = NULL;
spin_unlock(&lpfc_cmd->buf_lock);
@@ -4343,8 +4376,8 @@ lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn,
lpfc_cmd->cur_iocbq.iocb_flag &= ~LPFC_DRIVER_ABORTED;
if (lpfc_cmd->waitq)
wake_up(lpfc_cmd->waitq);
+out:
spin_unlock(&lpfc_cmd->buf_lock);
-
lpfc_release_scsi_buf(phba, lpfc_cmd);
}
@@ -4398,11 +4431,10 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
lpfc_cmd->result = (pIocbOut->iocb.un.ulpWord[4] & IOERR_PARAM_MASK);
lpfc_cmd->status = pIocbOut->iocb.ulpStatus;
- /* pick up SLI4 exhange busy status from HBA */
+ /* pick up SLI4 exchange busy status from HBA */
+ lpfc_cmd->flags &= ~LPFC_SBUF_XBUSY;
if (pIocbOut->iocb_flag & LPFC_EXCHANGE_BUSY)
lpfc_cmd->flags |= LPFC_SBUF_XBUSY;
- else
- lpfc_cmd->flags &= ~LPFC_SBUF_XBUSY;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (lpfc_cmd->prot_data_type) {
@@ -4601,6 +4633,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
lpfc_io_ktime(phba, lpfc_cmd);
}
#endif
+
/* The sdev is not guaranteed to be valid post scsi_done upcall. */
cmd->scsi_done(cmd);
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-17 11:11:43 +0000