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[SCSI] lpfc 8.3.5: fix fcp command polling, add FIP mode, performance optimisations and devloss timout fixes

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This patch includes the following changes:
- Fixed Panic/Hang when using polling mode for fcp commands
- Added support for Read_rev mbox bits indicating FIP mode of HBA
- Optimize performance of slow-path handling of els responses
- Add code to cleanup orphaned unsolicited receive sequences
- Fixed Devloss timeout when multiple initiators are in same zone

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
James Smart
2009-10-02 15:17:02 -04:00
committed by James Bottomley
parent 0d87841997
commit 45ed119035
12 changed files with 307 additions and 277 deletions
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16
drivers/scsi/lpfc/lpfc_scsi.c
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@ -2773,7 +2773,9 @@ void lpfc_poll_timeout(unsigned long ptr)
struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
lpfc_sli_poll_fcp_ring (phba);
lpfc_sli_handle_fast_ring_event(phba,
&phba->sli.ring[LPFC_FCP_RING], HA_R0RE_REQ);
if (phba->cfg_poll & DISABLE_FCP_RING_INT)
lpfc_poll_rearm_timer(phba);
}
@ -2932,7 +2934,11 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
goto out_host_busy_free_buf;
}
if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
lpfc_sli_poll_fcp_ring(phba);
spin_unlock(shost->host_lock);
lpfc_sli_handle_fast_ring_event(phba,
&phba->sli.ring[LPFC_FCP_RING], HA_R0RE_REQ);
spin_lock(shost->host_lock);
if (phba->cfg_poll & DISABLE_FCP_RING_INT)
lpfc_poll_rearm_timer(phba);
}
@ -3028,7 +3034,8 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
}
if (phba->cfg_poll & DISABLE_FCP_RING_INT)
lpfc_sli_poll_fcp_ring (phba);
lpfc_sli_handle_fast_ring_event(phba,
&phba->sli.ring[LPFC_FCP_RING], HA_R0RE_REQ);
lpfc_cmd->waitq = &waitq;
/* Wait for abort to complete */
@ -3546,7 +3553,8 @@ lpfc_slave_configure(struct scsi_device *sdev)
rport->dev_loss_tmo = vport->cfg_devloss_tmo;
if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
lpfc_sli_poll_fcp_ring(phba);
lpfc_sli_handle_fast_ring_event(phba,
&phba->sli.ring[LPFC_FCP_RING], HA_R0RE_REQ);
if (phba->cfg_poll & DISABLE_FCP_RING_INT)
lpfc_poll_rearm_timer(phba);
}