From 1de933f35b17622f977eff1630eb1f2c92e9450c Mon Sep 17 00:00:00 2001
From: "James.Smart@Emulex.Com" <James.Smart@Emulex.Com>
Date: Mon, 28 Nov 2005 11:41:15 -0500
Subject: [SCSI] lpfc 8.1.1: Miscellaneous Cleanups

Miscellaneous Cleanups:
- Remove ProgType READ_REV mailbox command value check in lpfc_config_port_prep.
- Convert simple printk to an lpfc_printf_log in queuecommand.
- Modify lpfc_abort_handler message 0749 to display more accurate text and data.
- Minor style cleanup: fix 3 long lines in lpfc_hw.h

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---
 drivers/scsi/lpfc/lpfc_hw.h   |  9 ++++++---
 drivers/scsi/lpfc/lpfc_init.c | 34 +++++++++++++---------------------
 drivers/scsi/lpfc/lpfc_scsi.c |  9 +++++----
 3 files changed, 24 insertions(+), 28 deletions(-)

(limited to 'drivers/scsi/lpfc')

diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
index 86c41981188b..bf0c25fa873a 100644
--- a/drivers/scsi/lpfc/lpfc_hw.h
+++ b/drivers/scsi/lpfc/lpfc_hw.h
@@ -266,9 +266,11 @@ struct lpfc_name {
 		struct {
 #ifdef __BIG_ENDIAN_BITFIELD
 			uint8_t nameType:4;	/* FC Word 0, bit 28:31 */
-			uint8_t IEEEextMsn:4;	/* FC Word 0, bit 24:27, bit 8:11 of IEEE ext */
+			uint8_t IEEEextMsn:4;	/* FC Word 0, bit 24:27, bit
+						   8:11 of IEEE ext */
 #else	/*  __LITTLE_ENDIAN_BITFIELD */
-			uint8_t IEEEextMsn:4;	/* FC Word 0, bit 24:27, bit 8:11 of IEEE ext */
+			uint8_t IEEEextMsn:4;	/* FC Word 0, bit 24:27, bit
+						   8:11 of IEEE ext */
 			uint8_t nameType:4;	/* FC Word 0, bit 28:31 */
 #endif
 
@@ -278,7 +280,8 @@ struct lpfc_name {
 #define NAME_IP_TYPE        0x4	/* IP address */
 #define NAME_CCITT_TYPE     0xC
 #define NAME_CCITT_GR_TYPE  0xE
-			uint8_t IEEEextLsb;	/* FC Word 0, bit 16:23, IEEE extended Lsb */
+			uint8_t IEEEextLsb;	/* FC Word 0, bit 16:23, IEEE
+						   extended Lsb */
 			uint8_t IEEE[6];	/* FC IEEE address */
 		} s;
 		uint8_t wwn[8];
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 07498118359d..3eebe663a2e5 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -126,34 +126,26 @@ lpfc_config_port_prep(struct lpfc_hba * phba)
 		return -ERESTART;
 	}
 
-	/* The HBA's current state is provided by the ProgType and rr fields.
-	 * Read and check the value of these fields before continuing to config
-	 * this port.
+	/*
+	 * The value of rr must be 1 since the driver set the cv field to 1.
+	 * This setting requires the FW to set all revision fields.
 	 */
-	if (mb->un.varRdRev.rr == 0 || mb->un.varRdRev.un.b.ProgType != 2) {
-		/* Old firmware */
+	if (mb->un.varRdRev.rr == 0) {
 		vp->rev.rBit = 0;
-		lpfc_printf_log(phba,
-				KERN_ERR,
-				LOG_INIT,
-				"%d:0440 Adapter failed to init, mbxCmd x%x "
-				"READ_REV detected outdated firmware"
-				"Data: x%x\n",
-				phba->brd_no,
-				mb->mbxCommand, 0);
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"%d:0440 Adapter failed to init, READ_REV has "
+				"missing revision information.\n",
+				phba->brd_no);
 		mempool_free(pmb, phba->mbox_mem_pool);
 		return -ERESTART;
-	} else {
-		vp->rev.rBit = 1;
-		vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
-		memcpy(vp->rev.sli1FwName,
-			(char*)mb->un.varRdRev.sli1FwName, 16);
-		vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
-		memcpy(vp->rev.sli2FwName,
-					(char *)mb->un.varRdRev.sli2FwName, 16);
 	}
 
 	/* Save information as VPD data */
+	vp->rev.rBit = 1;
+	vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
+	memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
+	vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
+	memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 	vp->rev.biuRev = mb->un.varRdRev.biuRev;
 	vp->rev.smRev = mb->un.varRdRev.smRev;
 	vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index c63275e66e2e..0aa5ca68433f 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -721,8 +721,9 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
 	}
 	lpfc_cmd = lpfc_sli_get_scsi_buf (phba);
 	if (lpfc_cmd == NULL) {
-		printk(KERN_WARNING "%s: No buffer available - list empty, "
-		       "total count %d\n", __FUNCTION__, phba->total_scsi_bufs);
+		lpfc_printf_log(phba, KERN_INFO, LOG_FCP,
+				"%d:0707 driver's buffer pool is empty, "
+				"IO busied\n", phba->brd_no);
 		goto out_host_busy;
 	}
 
@@ -844,8 +845,8 @@ __lpfc_abort_handler(struct scsi_cmnd *cmnd)
 
  out:
 	lpfc_printf_log(phba, KERN_WARNING, LOG_FCP,
-			"%d:0749 SCSI layer issued abort device: ret %#x, "
-			"ID %d, LUN %d, snum %#lx\n",
+			"%d:0749 SCSI Layer I/O Abort Request "
+			"Status x%x ID %d LUN %d snum %#lx\n",
 			phba->brd_no, ret, cmnd->device->id,
 			cmnd->device->lun, cmnd->serial_number);
 
-- 
cgit v1.2.3


From 2fb70f79936e7180e8b0287a4053b8ba89182717 Mon Sep 17 00:00:00 2001
From: "James.Smart@Emulex.Com" <James.Smart@Emulex.Com>
Date: Mon, 28 Nov 2005 11:41:24 -0500
Subject: [SCSI] lpfc 8.1.1 : Correct some 8bit to 16bit field
 conversions/comparisons

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---
 drivers/scsi/lpfc/lpfc_nportdisc.c | 69 +++++++++++++++++++++++++-------------
 1 file changed, 45 insertions(+), 24 deletions(-)

(limited to 'drivers/scsi/lpfc')

diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index 507a6af56f42..fbead786031f 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -55,55 +55,76 @@ lpfc_check_adisc(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
 	return (1);
 }
 
-
 int
 lpfc_check_sparm(struct lpfc_hba * phba,
 		 struct lpfc_nodelist * ndlp, struct serv_parm * sp,
 		 uint32_t class)
 {
 	volatile struct serv_parm *hsp = &phba->fc_sparam;
-	/* First check for supported version */
-
-	/* Next check for class validity */
+	uint16_t hsp_value, ssp_value = 0;
+
+	/*
+	 * The receive data field size and buffer-to-buffer receive data field
+	 * size entries are 16 bits but are represented as two 8-bit fields in
+	 * the driver data structure to account for rsvd bits and other control
+	 * bits.  Reconstruct and compare the fields as a 16-bit values before
+	 * correcting the byte values.
+	 */
 	if (sp->cls1.classValid) {
-
-		if (sp->cls1.rcvDataSizeMsb > hsp->cls1.rcvDataSizeMsb)
-			sp->cls1.rcvDataSizeMsb = hsp->cls1.rcvDataSizeMsb;
-		if (sp->cls1.rcvDataSizeLsb > hsp->cls1.rcvDataSizeLsb)
+		hsp_value = (hsp->cls1.rcvDataSizeMsb << 8) |
+				hsp->cls1.rcvDataSizeLsb;
+		ssp_value = (sp->cls1.rcvDataSizeMsb << 8) |
+				sp->cls1.rcvDataSizeLsb;
+		if (ssp_value > hsp_value) {
 			sp->cls1.rcvDataSizeLsb = hsp->cls1.rcvDataSizeLsb;
+			sp->cls1.rcvDataSizeMsb = hsp->cls1.rcvDataSizeMsb;
+		}
 	} else if (class == CLASS1) {
-		return (0);
+		return 0;
 	}
 
 	if (sp->cls2.classValid) {
-
-		if (sp->cls2.rcvDataSizeMsb > hsp->cls2.rcvDataSizeMsb)
-			sp->cls2.rcvDataSizeMsb = hsp->cls2.rcvDataSizeMsb;
-		if (sp->cls2.rcvDataSizeLsb > hsp->cls2.rcvDataSizeLsb)
+		hsp_value = (hsp->cls2.rcvDataSizeMsb << 8) |
+				hsp->cls2.rcvDataSizeLsb;
+		ssp_value = (sp->cls2.rcvDataSizeMsb << 8) |
+				sp->cls2.rcvDataSizeLsb;
+		if (ssp_value > hsp_value) {
 			sp->cls2.rcvDataSizeLsb = hsp->cls2.rcvDataSizeLsb;
+			sp->cls2.rcvDataSizeMsb = hsp->cls2.rcvDataSizeMsb;
+		}
 	} else if (class == CLASS2) {
-		return (0);
+		return 0;
 	}
 
 	if (sp->cls3.classValid) {
-
-		if (sp->cls3.rcvDataSizeMsb > hsp->cls3.rcvDataSizeMsb)
-			sp->cls3.rcvDataSizeMsb = hsp->cls3.rcvDataSizeMsb;
-		if (sp->cls3.rcvDataSizeLsb > hsp->cls3.rcvDataSizeLsb)
+		hsp_value = (hsp->cls3.rcvDataSizeMsb << 8) |
+				hsp->cls3.rcvDataSizeLsb;
+		ssp_value = (sp->cls3.rcvDataSizeMsb << 8) |
+				sp->cls3.rcvDataSizeLsb;
+		if (ssp_value > hsp_value) {
 			sp->cls3.rcvDataSizeLsb = hsp->cls3.rcvDataSizeLsb;
+			sp->cls3.rcvDataSizeMsb = hsp->cls3.rcvDataSizeMsb;
+		}
 	} else if (class == CLASS3) {
-		return (0);
+		return 0;
 	}
 
-	if (sp->cmn.bbRcvSizeMsb > hsp->cmn.bbRcvSizeMsb)
-		sp->cmn.bbRcvSizeMsb = hsp->cmn.bbRcvSizeMsb;
-	if (sp->cmn.bbRcvSizeLsb > hsp->cmn.bbRcvSizeLsb)
+	/*
+	 * Preserve the upper four bits of the MSB from the PLOGI response.
+	 * These bits contain the Buffer-to-Buffer State Change Number
+	 * from the target and need to be passed to the FW.
+	 */
+	hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb;
+	ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb;
+	if (ssp_value > hsp_value) {
 		sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb;
+		sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) |
+				       (hsp->cmn.bbRcvSizeMsb & 0x0F);
+	}
 
-	/* If check is good, copy wwpn wwnn into ndlp */
 	memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
 	memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name));
-	return (1);
+	return 1;
 }
 
 static void *
-- 
cgit v1.2.3


From 6281bfe0002acd7765cb4afe0304c36962ad6b15 Mon Sep 17 00:00:00 2001
From: "James.Smart@Emulex.Com" <James.Smart@Emulex.Com>
Date: Mon, 28 Nov 2005 11:41:33 -0500
Subject: [SCSI] lpfc 8.1.1 : Fixes for short cable pulls

Cause: Link bounces were causing discovery ELS's to be killed.
Driver was not properly flushing ELS commands upon the subsequent
link bounces. Thus, processing of ELS post link bounce erroneously
assumed discovery failure and device loss.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---
 drivers/scsi/lpfc/lpfc_els.c  | 4 ++++
 drivers/scsi/lpfc/lpfc_init.c | 2 ++
 2 files changed, 6 insertions(+)

(limited to 'drivers/scsi/lpfc')

diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index bcc29ec126dc..20f1a0713db2 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -720,6 +720,7 @@ lpfc_cmpl_els_plogi(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
 		/* Do not call DSM for lpfc_els_abort'ed ELS cmds */
 		if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
 		   ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||
+		   (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||
 		   (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {
 			disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
 		}
@@ -869,6 +870,7 @@ lpfc_cmpl_els_prli(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
 		/* Do not call DSM for lpfc_els_abort'ed ELS cmds */
 		if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
 		   ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||
+		   (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||
 		   (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {
 			goto out;
 		}
@@ -1054,6 +1056,7 @@ lpfc_cmpl_els_adisc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
 		/* Do not call DSM for lpfc_els_abort'ed ELS cmds */
 		if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
 		   ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||
+		   (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||
 		   (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {
 			disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
 		}
@@ -1205,6 +1208,7 @@ lpfc_cmpl_els_logo(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
 		/* Do not call DSM for lpfc_els_abort'ed ELS cmds */
 		if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
 		   ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||
+		   (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||
 		   (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {
 			goto out;
 		}
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 3eebe663a2e5..4d4e217edd84 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -563,6 +563,8 @@ lpfc_handle_latt(struct lpfc_hba * phba)
 
 	rc = -EIO;
 
+	/* Cleanup any outstanding ELS commands */
+	lpfc_els_flush_cmd(phba);
 
 	psli->slistat.link_event++;
 	lpfc_read_la(phba, pmb, mp);
-- 
cgit v1.2.3


From 23dc04f1ec0d2f8fdda82ad1f9aa87b6ed74cd4a Mon Sep 17 00:00:00 2001
From: "James.Smart@Emulex.Com" <James.Smart@Emulex.Com>
Date: Mon, 28 Nov 2005 11:41:44 -0500
Subject: [SCSI] lpfc 8.1.1 : Adjust use of scsi_block_requests and interaction
 w/ FC transport

- Remove unnecessary scsi_block_requests calls on rport deletes.
  This was deadlocking the sdev removals as they wanted to flush commands.
- No longer block requests when adding the remote port (to block
  discovery). Instead, register, then change port role. Maps to Qlogic
  behavior, and closer to the register-node-upon-first-ELS behavior.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---
 drivers/scsi/lpfc/lpfc_hbadisc.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

(limited to 'drivers/scsi/lpfc')

diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index 259eeb161b82..a1f751e79405 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -1017,12 +1017,7 @@ lpfc_register_remote_port(struct lpfc_hba * phba,
 	rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
 	rport_ids.port_id = ndlp->nlp_DID;
 	rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
-	if (ndlp->nlp_type & NLP_FCP_TARGET)
-		rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
-	if (ndlp->nlp_type & NLP_FCP_INITIATOR)
-		rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
 
-	scsi_block_requests(phba->host);
 	ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
 	if (!rport) {
 		dev_printk(KERN_WARNING, &phba->pcidev->dev,
@@ -1039,7 +1034,16 @@ lpfc_register_remote_port(struct lpfc_hba * phba,
 	}
 	rdata = rport->dd_data;
 	rdata->pnode = ndlp;
-	scsi_unblock_requests(phba->host);
+
+	if (ndlp->nlp_type & NLP_FCP_TARGET)
+		rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
+	if (ndlp->nlp_type & NLP_FCP_INITIATOR)
+		rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
+
+
+	if (rport_ids.roles !=  FC_RPORT_ROLE_UNKNOWN)
+		fc_remote_port_rolechg(rport, rport_ids.roles);
+
 
 	return;
 }
@@ -1053,9 +1057,7 @@ lpfc_unregister_remote_port(struct lpfc_hba * phba,
 
 	ndlp->rport = NULL;
 	rdata->pnode = NULL;
-	scsi_block_requests(phba->host);
 	fc_remote_port_delete(rport);
-	scsi_unblock_requests(phba->host);
 
 	return;
 }
-- 
cgit v1.2.3


From 63c59c3b8ff444b771a245f59935c0202ece963b Mon Sep 17 00:00:00 2001
From: "James.Smart@Emulex.Com" <James.Smart@Emulex.Com>
Date: Mon, 28 Nov 2005 11:41:53 -0500
Subject: [SCSI] lpfc 8.1.1 : Remove locking wrappers around error handlers

Remove locking wrappers around error handlers. Wrappers were added in
early 2.6.13 api change

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---
 drivers/scsi/lpfc/lpfc_scsi.c | 52 ++++++++++++-------------------------------
 1 file changed, 14 insertions(+), 38 deletions(-)

(limited to 'drivers/scsi/lpfc')

diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 0aa5ca68433f..a4d8455de446 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -760,11 +760,12 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
 	return 0;
 }
 
+
 static int
-__lpfc_abort_handler(struct scsi_cmnd *cmnd)
+lpfc_abort_handler(struct scsi_cmnd *cmnd)
 {
-	struct lpfc_hba *phba =
-			(struct lpfc_hba *)cmnd->device->host->hostdata[0];
+	struct Scsi_Host *shost = cmnd->device->host;
+	struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata[0];
 	struct lpfc_sli_ring *pring = &phba->sli.ring[phba->sli.fcp_ring];
 	struct lpfc_iocbq *iocb;
 	struct lpfc_iocbq *abtsiocb;
@@ -773,6 +774,7 @@ __lpfc_abort_handler(struct scsi_cmnd *cmnd)
 	unsigned int loop_count = 0;
 	int ret = SUCCESS;
 
+	spin_lock_irq(shost->host_lock);
 
 	lpfc_cmd = (struct lpfc_scsi_buf *)cmnd->host_scribble;
 	BUG_ON(!lpfc_cmd);
@@ -850,21 +852,13 @@ __lpfc_abort_handler(struct scsi_cmnd *cmnd)
 			phba->brd_no, ret, cmnd->device->id,
 			cmnd->device->lun, cmnd->serial_number);
 
-	return ret;
-}
+	spin_unlock_irq(shost->host_lock);
 
-static int
-lpfc_abort_handler(struct scsi_cmnd *cmnd)
-{
-	int rc;
-	spin_lock_irq(cmnd->device->host->host_lock);
-	rc = __lpfc_abort_handler(cmnd);
-	spin_unlock_irq(cmnd->device->host->host_lock);
-	return rc;
+	return ret;
 }
 
 static int
-__lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
+lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
 {
 	struct Scsi_Host *shost = cmnd->device->host;
 	struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata[0];
@@ -875,6 +869,7 @@ __lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
 	int ret = FAILED;
 	int cnt, loopcnt;
 
+	spin_lock_irq(shost->host_lock);
 	/*
 	 * If target is not in a MAPPED state, delay the reset until
 	 * target is rediscovered or nodev timeout expires.
@@ -964,24 +959,12 @@ out_free_scsi_buf:
 			lpfc_cmd->result);
 	lpfc_release_scsi_buf(phba, lpfc_cmd);
 out:
+	spin_unlock_irq(shost->host_lock);
 	return ret;
 }
 
 static int
-lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
-{
-	int rc;
-	spin_lock_irq(cmnd->device->host->host_lock);
-	rc = __lpfc_reset_lun_handler(cmnd);
-	spin_unlock_irq(cmnd->device->host->host_lock);
-	return rc;
-}
-
-/*
- * Note: midlayer calls this function with the host_lock held
- */
-static int
-__lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
+lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
 {
 	struct Scsi_Host *shost = cmnd->device->host;
 	struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata[0];
@@ -992,6 +975,8 @@ __lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
 	unsigned int midlayer_id = 0;
 	struct lpfc_scsi_buf * lpfc_cmd;
 
+	spin_lock_irq(shost->host_lock);
+
 	lpfc_cmd = lpfc_sli_get_scsi_buf (phba);
 	if (lpfc_cmd == NULL)
 		goto out;
@@ -1067,19 +1052,10 @@ __lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
 			"%d:0714 SCSI layer issued Bus Reset Data: x%x\n",
 			phba->brd_no, ret);
 out:
+	spin_unlock_irq(shost->host_lock);
 	return ret;
 }
 
-static int
-lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
-{
-	int rc;
-	spin_lock_irq(cmnd->device->host->host_lock);
-	rc = __lpfc_reset_bus_handler(cmnd);
-	spin_unlock_irq(cmnd->device->host->host_lock);
-	return rc;
-}
-
 static int
 lpfc_slave_alloc(struct scsi_device *sdev)
 {
-- 
cgit v1.2.3


From 6175c02a0b12f92c03b56c756c4f1e131ae1456c Mon Sep 17 00:00:00 2001
From: "James.Smart@Emulex.Com" <James.Smart@Emulex.Com>
Date: Mon, 28 Nov 2005 11:42:05 -0500
Subject: [SCSI] lpfc 8.1.1 : Fixes to error handlers

- Release task management command before counting outstanding commands.
  TMF was being erroneously counted as an active outstanding command.
- Serialize EH calls and block requests when EH function is running.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---
 drivers/scsi/lpfc/lpfc.h      |   1 +
 drivers/scsi/lpfc/lpfc_init.c |   2 +-
 drivers/scsi/lpfc/lpfc_scsi.c | 104 +++++++++++++++++++++++++++---------------
 3 files changed, 70 insertions(+), 37 deletions(-)

(limited to 'drivers/scsi/lpfc')

diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 3062b39fbdb9..dc73a2f8f12c 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -167,6 +167,7 @@ struct lpfc_hba {
 	dma_addr_t slim2p_mapping;
 	uint16_t pci_cfg_value;
 
+	struct semaphore hba_can_block;
 	uint32_t hba_state;
 
 #define LPFC_INIT_START           1	/* Initial state after board reset */
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 4d4e217edd84..dfd59d21ec49 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -1345,7 +1345,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
 		goto out_put_host;
 
 	host->unique_id = phba->brd_no;
-
+	init_MUTEX(&phba->hba_can_block);
 	INIT_LIST_HEAD(&phba->ctrspbuflist);
 	INIT_LIST_HEAD(&phba->rnidrspbuflist);
 	INIT_LIST_HEAD(&phba->freebufList);
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index a4d8455de446..7dc7810b7482 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -41,6 +41,20 @@
 #define LPFC_ABORT_WAIT  2
 
 
+static inline void
+lpfc_block_requests(struct lpfc_hba * phba)
+{
+	down(&phba->hba_can_block);
+	scsi_block_requests(phba->host);
+}
+
+static inline void
+lpfc_unblock_requests(struct lpfc_hba * phba)
+{
+	scsi_unblock_requests(phba->host);
+	up(&phba->hba_can_block);
+}
+
 /*
  * This routine allocates a scsi buffer, which contains all the necessary
  * information needed to initiate a SCSI I/O.  The non-DMAable buffer region
@@ -774,6 +788,7 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
 	unsigned int loop_count = 0;
 	int ret = SUCCESS;
 
+	lpfc_block_requests(phba);
 	spin_lock_irq(shost->host_lock);
 
 	lpfc_cmd = (struct lpfc_scsi_buf *)cmnd->host_scribble;
@@ -853,6 +868,7 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
 			cmnd->device->lun, cmnd->serial_number);
 
 	spin_unlock_irq(shost->host_lock);
+	lpfc_unblock_requests(phba);
 
 	return ret;
 }
@@ -866,9 +882,11 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
 	struct lpfc_iocbq *iocbq, *iocbqrsp;
 	struct lpfc_rport_data *rdata = cmnd->device->hostdata;
 	struct lpfc_nodelist *pnode = rdata->pnode;
+	uint32_t cmd_result = 0, cmd_status = 0;
 	int ret = FAILED;
 	int cnt, loopcnt;
 
+	lpfc_block_requests(phba);
 	spin_lock_irq(shost->host_lock);
 	/*
 	 * If target is not in a MAPPED state, delay the reset until
@@ -912,26 +930,28 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
 	if (ret == IOCB_SUCCESS)
 		ret = SUCCESS;
 
-	lpfc_cmd->result = iocbqrsp->iocb.un.ulpWord[4];
-	lpfc_cmd->status = iocbqrsp->iocb.ulpStatus;
-	if (lpfc_cmd->status == IOSTAT_LOCAL_REJECT)
-		if (lpfc_cmd->result & IOERR_DRVR_MASK)
-			lpfc_cmd->status = IOSTAT_DRIVER_REJECT;
+
+	cmd_result = iocbqrsp->iocb.un.ulpWord[4];
+	cmd_status = iocbqrsp->iocb.ulpStatus;
+
+	lpfc_sli_release_iocbq(phba, iocbqrsp);
+	lpfc_release_scsi_buf(phba, lpfc_cmd);
 
 	/*
-	 * All outstanding txcmplq I/Os should have been aborted by the target.
+	 * All outstanding txcmplq I/Os should have been aborted by the device.
 	 * Unfortunately, some targets do not abide by this forcing the driver
 	 * to double check.
 	 */
-	lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
-			    cmnd->device->id, cmnd->device->lun, 0,
-			    LPFC_CTX_LUN);
-
+	cnt = lpfc_sli_sum_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
+				cmnd->device->id, cmnd->device->lun,
+				LPFC_CTX_LUN);
+	if (cnt)
+		lpfc_sli_abort_iocb(phba,
+				    &phba->sli.ring[phba->sli.fcp_ring],
+				    cmnd->device->id, cmnd->device->lun,
+				    0, LPFC_CTX_LUN);
 	loopcnt = 0;
-	while((cnt = lpfc_sli_sum_iocb(phba,
-				       &phba->sli.ring[phba->sli.fcp_ring],
-				       cmnd->device->id, cmnd->device->lun,
-				       LPFC_CTX_LUN))) {
+	while(cnt) {
 		spin_unlock_irq(phba->host->host_lock);
 		schedule_timeout_uninterruptible(LPFC_RESET_WAIT*HZ);
 		spin_lock_irq(phba->host->host_lock);
@@ -939,6 +959,11 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
 		if (++loopcnt
 		    > (2 * phba->cfg_nodev_tmo)/LPFC_RESET_WAIT)
 			break;
+
+		cnt = lpfc_sli_sum_iocb(phba,
+					&phba->sli.ring[phba->sli.fcp_ring],
+					cmnd->device->id, cmnd->device->lun,
+					LPFC_CTX_LUN);
 	}
 
 	if (cnt) {
@@ -948,18 +973,16 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
 		ret = FAILED;
 	}
 
-	lpfc_sli_release_iocbq(phba, iocbqrsp);
-
 out_free_scsi_buf:
 	lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
 			"%d:0713 SCSI layer issued LUN reset (%d, %d) "
 			"Data: x%x x%x x%x\n",
-			phba->brd_no, lpfc_cmd->pCmd->device->id,
-			lpfc_cmd->pCmd->device->lun, ret, lpfc_cmd->status,
-			lpfc_cmd->result);
-	lpfc_release_scsi_buf(phba, lpfc_cmd);
+			phba->brd_no, cmnd->device->id,cmnd->device->lun,
+			ret, cmd_status, cmd_result);
+
 out:
 	spin_unlock_irq(shost->host_lock);
+	lpfc_unblock_requests(phba);
 	return ret;
 }
 
@@ -975,6 +998,7 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
 	unsigned int midlayer_id = 0;
 	struct lpfc_scsi_buf * lpfc_cmd;
 
+	lpfc_block_requests(phba);
 	spin_lock_irq(shost->host_lock);
 
 	lpfc_cmd = lpfc_sli_get_scsi_buf (phba);
@@ -1008,18 +1032,31 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
 		lpfc_cmd->pCmd->device->hostdata = ndlp->rport->dd_data;
 		ret = lpfc_scsi_tgt_reset(lpfc_cmd, phba);
 		if (ret != SUCCESS) {
-			lpfc_printf_log(phba, KERN_INFO, LOG_FCP,
+			lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
 				"%d:0713 Bus Reset on target %d failed\n",
 				phba->brd_no, i);
 			err_count++;
 		}
 	}
 
+	if (err_count == 0)
+		ret = SUCCESS;
+
+	lpfc_release_scsi_buf(phba, lpfc_cmd);
+
+	/*
+	 * All outstanding txcmplq I/Os should have been aborted by
+	 * the targets.  Unfortunately, some targets do not abide by
+	 * this forcing the driver to double check.
+	 */
 	cmnd->device->id = midlayer_id;
+	cnt = lpfc_sli_sum_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
+				0, 0, LPFC_CTX_HOST);
+	if (cnt)
+		lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
+				    0, 0, 0, LPFC_CTX_HOST);
 	loopcnt = 0;
-	while((cnt = lpfc_sli_sum_iocb(phba,
-				&phba->sli.ring[phba->sli.fcp_ring],
-				0, 0, LPFC_CTX_HOST))) {
+	while(cnt) {
 		spin_unlock_irq(phba->host->host_lock);
 		schedule_timeout_uninterruptible(LPFC_RESET_WAIT*HZ);
 		spin_lock_irq(phba->host->host_lock);
@@ -1027,25 +1064,19 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
 		if (++loopcnt
 		    > (2 * phba->cfg_nodev_tmo)/LPFC_RESET_WAIT)
 			break;
+
+		cnt = lpfc_sli_sum_iocb(phba,
+					&phba->sli.ring[phba->sli.fcp_ring],
+					0, 0, LPFC_CTX_HOST);
 	}
 
 	if (cnt) {
-		/* flush all outstanding commands on the host */
-		i = lpfc_sli_abort_iocb(phba,
-				&phba->sli.ring[phba->sli.fcp_ring], 0, 0, 0,
-				LPFC_CTX_HOST);
-
-		lpfc_printf_log(phba, KERN_INFO, LOG_FCP,
+		lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
 		   "%d:0715 Bus Reset I/O flush failure: cnt x%x left x%x\n",
 		   phba->brd_no, cnt, i);
-	}
-
-	if (cnt == 0)
-		ret = SUCCESS;
-	else
 		ret = FAILED;
+	}
 
-	lpfc_release_scsi_buf(phba, lpfc_cmd);
 	lpfc_printf_log(phba,
 			KERN_ERR,
 			LOG_FCP,
@@ -1053,6 +1084,7 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
 			phba->brd_no, ret);
 out:
 	spin_unlock_irq(shost->host_lock);
+	lpfc_unblock_requests(phba);
 	return ret;
 }
 
-- 
cgit v1.2.3


From e4adb20406385d1cc8fdb15e92ed7ac3d0ae41f6 Mon Sep 17 00:00:00 2001
From: "James.Smart@Emulex.Com" <James.Smart@Emulex.Com>
Date: Mon, 28 Nov 2005 11:42:12 -0500
Subject: [SCSI] lpfc 8.1.1 : Add support for more members of the Light Pulse
 11xxx (4Gb) family

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---
 drivers/scsi/lpfc/lpfc_hw.h   | 25 ++++++++++++------
 drivers/scsi/lpfc/lpfc_init.c | 60 ++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 74 insertions(+), 11 deletions(-)

(limited to 'drivers/scsi/lpfc')

diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
index bf0c25fa873a..4f0029301412 100644
--- a/drivers/scsi/lpfc/lpfc_hw.h
+++ b/drivers/scsi/lpfc/lpfc_hw.h
@@ -1027,23 +1027,32 @@ typedef struct {
 /* Start FireFly Register definitions */
 #define PCI_VENDOR_ID_EMULEX        0x10df
 #define PCI_DEVICE_ID_FIREFLY       0x1ae5
-#define PCI_DEVICE_ID_SUPERFLY      0xf700
-#define PCI_DEVICE_ID_DRAGONFLY     0xf800
 #define PCI_DEVICE_ID_RFLY          0xf095
 #define PCI_DEVICE_ID_PFLY          0xf098
+#define PCI_DEVICE_ID_LP101         0xf0a1
 #define PCI_DEVICE_ID_TFLY          0xf0a5
+#define PCI_DEVICE_ID_BSMB          0xf0d1
+#define PCI_DEVICE_ID_BMID          0xf0d5
+#define PCI_DEVICE_ID_ZSMB          0xf0e1
+#define PCI_DEVICE_ID_ZMID          0xf0e5
+#define PCI_DEVICE_ID_NEPTUNE       0xf0f5
+#define PCI_DEVICE_ID_NEPTUNE_SCSP  0xf0f6
+#define PCI_DEVICE_ID_NEPTUNE_DCSP  0xf0f7
+#define PCI_DEVICE_ID_SUPERFLY      0xf700
+#define PCI_DEVICE_ID_DRAGONFLY     0xf800
 #define PCI_DEVICE_ID_CENTAUR       0xf900
 #define PCI_DEVICE_ID_PEGASUS       0xf980
 #define PCI_DEVICE_ID_THOR          0xfa00
 #define PCI_DEVICE_ID_VIPER         0xfb00
+#define PCI_DEVICE_ID_LP10000S      0xfc00
+#define PCI_DEVICE_ID_LP11000S      0xfc10
+#define PCI_DEVICE_ID_LPE11000S     0xfc20
 #define PCI_DEVICE_ID_HELIOS        0xfd00
-#define PCI_DEVICE_ID_BMID          0xf0d5
-#define PCI_DEVICE_ID_BSMB          0xf0d1
+#define PCI_DEVICE_ID_HELIOS_SCSP   0xfd11
+#define PCI_DEVICE_ID_HELIOS_DCSP   0xfd12
 #define PCI_DEVICE_ID_ZEPHYR        0xfe00
-#define PCI_DEVICE_ID_ZMID          0xf0e5
-#define PCI_DEVICE_ID_ZSMB          0xf0e1
-#define PCI_DEVICE_ID_LP101	    0xf0a1
-#define PCI_DEVICE_ID_LP10000S	    0xfc00
+#define PCI_DEVICE_ID_ZEPHYR_SCSP   0xfe11
+#define PCI_DEVICE_ID_ZEPHYR_DCSP   0xfe12
 
 #define JEDEC_ID_ADDRESS            0x0080001c
 #define FIREFLY_JEDEC_ID            0x1ACC
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index dfd59d21ec49..1ab3dac7b632 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -759,15 +759,15 @@ static void
 lpfc_get_hba_model_desc(struct lpfc_hba * phba, uint8_t * mdp, uint8_t * descp)
 {
 	lpfc_vpd_t *vp;
-	uint32_t id;
+	uint16_t dev_id;
 	uint8_t hdrtype;
 	char str[16];
 
 	vp = &phba->vpd;
-	pci_read_config_dword(phba->pcidev, PCI_VENDOR_ID, &id);
+	pci_read_config_word(phba->pcidev, PCI_DEVICE_ID, &dev_id);
 	pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
 
-	switch ((id >> 16) & 0xffff) {
+	switch (dev_id) {
 	case PCI_DEVICE_ID_FIREFLY:
 		strcpy(str, "LP6000 1");
 		break;
@@ -816,6 +816,24 @@ lpfc_get_hba_model_desc(struct lpfc_hba * phba, uint8_t * mdp, uint8_t * descp)
 		else
 			strcpy(str, "LP11000 4");
 		break;
+	case PCI_DEVICE_ID_HELIOS_SCSP:
+		strcpy(str, "LP11000-SP 4");
+		break;
+	case PCI_DEVICE_ID_HELIOS_DCSP:
+		strcpy(str, "LP11002-SP 4");
+		break;
+	case PCI_DEVICE_ID_NEPTUNE:
+		if (hdrtype == 0x80)
+			strcpy(str, "LPe1002 4");
+		else
+			strcpy(str, "LPe1000 4");
+		break;
+	case PCI_DEVICE_ID_NEPTUNE_SCSP:
+		strcpy(str, "LPe1000-SP 4");
+		break;
+	case PCI_DEVICE_ID_NEPTUNE_DCSP:
+		strcpy(str, "LPe1002-SP 4");
+		break;
 	case PCI_DEVICE_ID_BMID:
 		strcpy(str, "LP1150 4");
 		break;
@@ -828,6 +846,12 @@ lpfc_get_hba_model_desc(struct lpfc_hba * phba, uint8_t * mdp, uint8_t * descp)
 		else
 			strcpy(str, "LPe11000 4");
 		break;
+	case PCI_DEVICE_ID_ZEPHYR_SCSP:
+		strcpy(str, "LPe11000-SP 4");
+		break;
+	case PCI_DEVICE_ID_ZEPHYR_DCSP:
+		strcpy(str, "LPe11002-SP 4");
+		break;
 	case PCI_DEVICE_ID_ZMID:
 		strcpy(str, "LPe1150 4");
 		break;
@@ -843,6 +867,18 @@ lpfc_get_hba_model_desc(struct lpfc_hba * phba, uint8_t * mdp, uint8_t * descp)
 	default:
 		memset(str, 0, 16);
 		break;
+	case PCI_DEVICE_ID_LP11000S:
+		if (hdrtype == 0x80)
+			strcpy(str, "LP11002-S 4");
+		else
+			strcpy(str, "LP11000-S 4");
+		break;
+	case PCI_DEVICE_ID_LPE11000S:
+		if (hdrtype == 0x80)
+			strcpy(str, "LPe11002-S 4");
+		else
+			strcpy(str, "LPe11000-S 4");
+		break;
 	}
 	if (mdp)
 		sscanf(str, "%s", mdp);
@@ -1673,14 +1709,28 @@ static struct pci_device_id lpfc_id_table[] = {
 		PCI_ANY_ID, PCI_ANY_ID, },
 	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
 		PCI_ANY_ID, PCI_ANY_ID, },
+	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
+		PCI_ANY_ID, PCI_ANY_ID, },
+	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
+		PCI_ANY_ID, PCI_ANY_ID, },
+	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
+		PCI_ANY_ID, PCI_ANY_ID, },
 	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
 		PCI_ANY_ID, PCI_ANY_ID, },
+	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
+		PCI_ANY_ID, PCI_ANY_ID, },
+	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
+		PCI_ANY_ID, PCI_ANY_ID, },
 	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
 		PCI_ANY_ID, PCI_ANY_ID, },
 	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
 		PCI_ANY_ID, PCI_ANY_ID, },
 	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
 		PCI_ANY_ID, PCI_ANY_ID, },
+	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
+		PCI_ANY_ID, PCI_ANY_ID, },
+	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
+		PCI_ANY_ID, PCI_ANY_ID, },
 	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
 		PCI_ANY_ID, PCI_ANY_ID, },
 	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
@@ -1691,6 +1741,10 @@ static struct pci_device_id lpfc_id_table[] = {
 		PCI_ANY_ID, PCI_ANY_ID, },
 	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
 		PCI_ANY_ID, PCI_ANY_ID, },
+	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
+		PCI_ANY_ID, PCI_ANY_ID, },
+	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
+		PCI_ANY_ID, PCI_ANY_ID, },
 	{ 0 }
 };
 
-- 
cgit v1.2.3


From 5cc36b3cd0e3610ad7c7e2514160998276798fc0 Mon Sep 17 00:00:00 2001
From: "James.Smart@Emulex.Com" <James.Smart@Emulex.Com>
Date: Mon, 28 Nov 2005 11:42:19 -0500
Subject: [SCSI] lpfc 8.1.1 : Bring model descriptions in sync with Emulex
 standard generic names

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---
 drivers/scsi/lpfc/lpfc_hw.h   |   6 +++
 drivers/scsi/lpfc/lpfc_init.c | 107 +++++++++++++++++++++++-------------------
 2 files changed, 65 insertions(+), 48 deletions(-)

(limited to 'drivers/scsi/lpfc')

diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
index 4f0029301412..1ea565e0561f 100644
--- a/drivers/scsi/lpfc/lpfc_hw.h
+++ b/drivers/scsi/lpfc/lpfc_hw.h
@@ -1054,6 +1054,12 @@ typedef struct {
 #define PCI_DEVICE_ID_ZEPHYR_SCSP   0xfe11
 #define PCI_DEVICE_ID_ZEPHYR_DCSP   0xfe12
 
+#define PCI_SUBSYSTEM_ID_LP11000S      0xfc11
+#define PCI_SUBSYSTEM_ID_LP11002S      0xfc12
+#define PCI_SUBSYSTEM_ID_LPE11000S     0xfc21
+#define PCI_SUBSYSTEM_ID_LPE11002S     0xfc22
+#define PCI_SUBSYSTEM_ID_LPE11010S     0xfc2A
+
 #define JEDEC_ID_ADDRESS            0x0080001c
 #define FIREFLY_JEDEC_ID            0x1ACC
 #define SUPERFLY_JEDEC_ID           0x0020
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 1ab3dac7b632..766dac230a6c 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -760,8 +760,9 @@ lpfc_get_hba_model_desc(struct lpfc_hba * phba, uint8_t * mdp, uint8_t * descp)
 {
 	lpfc_vpd_t *vp;
 	uint16_t dev_id;
+	uint16_t dev_subid;
 	uint8_t hdrtype;
-	char str[16];
+	char *model_str = "";
 
 	vp = &phba->vpd;
 	pci_read_config_word(phba->pcidev, PCI_DEVICE_ID, &dev_id);
@@ -769,122 +770,132 @@ lpfc_get_hba_model_desc(struct lpfc_hba * phba, uint8_t * mdp, uint8_t * descp)
 
 	switch (dev_id) {
 	case PCI_DEVICE_ID_FIREFLY:
-		strcpy(str, "LP6000 1");
+		model_str = "LP6000 1Gb PCI";
 		break;
 	case PCI_DEVICE_ID_SUPERFLY:
 		if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
-			strcpy(str, "LP7000 1");
+			model_str = "LP7000 1Gb PCI";
 		else
-			strcpy(str, "LP7000E 1");
+			model_str = "LP7000E 1Gb PCI";
 		break;
 	case PCI_DEVICE_ID_DRAGONFLY:
-		strcpy(str, "LP8000 1");
+		model_str = "LP8000 1Gb PCI";
 		break;
 	case PCI_DEVICE_ID_CENTAUR:
 		if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
-			strcpy(str, "LP9002 2");
+			model_str = "LP9002 2Gb PCI";
 		else
-			strcpy(str, "LP9000 1");
+			model_str = "LP9000 1Gb PCI";
 		break;
 	case PCI_DEVICE_ID_RFLY:
-		strcpy(str, "LP952 2");
+		model_str = "LP952 2Gb PCI";
 		break;
 	case PCI_DEVICE_ID_PEGASUS:
-		strcpy(str, "LP9802 2");
+		model_str = "LP9802 2Gb PCI-X";
 		break;
 	case PCI_DEVICE_ID_THOR:
 		if (hdrtype == 0x80)
-			strcpy(str, "LP10000DC 2");
+			model_str = "LP10000DC 2Gb 2-port PCI-X";
 		else
-			strcpy(str, "LP10000 2");
+			model_str = "LP10000 2Gb PCI-X";
 		break;
 	case PCI_DEVICE_ID_VIPER:
-		strcpy(str, "LPX1000 10");
+		model_str = "LPX1000 10Gb PCI-X";
 		break;
 	case PCI_DEVICE_ID_PFLY:
-		strcpy(str, "LP982 2");
+		model_str = "LP982 2Gb PCI-X";
 		break;
 	case PCI_DEVICE_ID_TFLY:
 		if (hdrtype == 0x80)
-			strcpy(str, "LP1050DC 2");
+			model_str = "LP1050DC 2Gb 2-port PCI-X";
 		else
-			strcpy(str, "LP1050 2");
+			model_str = "LP1050 2Gb PCI-X";
 		break;
 	case PCI_DEVICE_ID_HELIOS:
 		if (hdrtype == 0x80)
-			strcpy(str, "LP11002 4");
+			model_str = "LP11002 4Gb 2-port PCI-X2";
 		else
-			strcpy(str, "LP11000 4");
+			model_str = "LP11000 4Gb PCI-X2";
 		break;
 	case PCI_DEVICE_ID_HELIOS_SCSP:
-		strcpy(str, "LP11000-SP 4");
+		model_str = "LP11000-SP 4Gb PCI-X2";
 		break;
 	case PCI_DEVICE_ID_HELIOS_DCSP:
-		strcpy(str, "LP11002-SP 4");
+		model_str = "LP11002-SP 4Gb 2-port PCI-X2";
 		break;
 	case PCI_DEVICE_ID_NEPTUNE:
 		if (hdrtype == 0x80)
-			strcpy(str, "LPe1002 4");
+			model_str = "LPe1002 4Gb 2-port";
 		else
-			strcpy(str, "LPe1000 4");
+			model_str = "LPe1000 4Gb PCIe";
 		break;
 	case PCI_DEVICE_ID_NEPTUNE_SCSP:
-		strcpy(str, "LPe1000-SP 4");
+		model_str = "LPe1000-SP 4Gb PCIe";
 		break;
 	case PCI_DEVICE_ID_NEPTUNE_DCSP:
-		strcpy(str, "LPe1002-SP 4");
+		model_str = "LPe1002-SP 4Gb 2-port PCIe";
 		break;
 	case PCI_DEVICE_ID_BMID:
-		strcpy(str, "LP1150 4");
+		model_str = "LP1150 4Gb PCI-X2";
 		break;
 	case PCI_DEVICE_ID_BSMB:
-		strcpy(str, "LP111 4");
+		model_str = "LP111 4Gb PCI-X2";
 		break;
 	case PCI_DEVICE_ID_ZEPHYR:
 		if (hdrtype == 0x80)
-			strcpy(str, "LPe11002 4");
+			model_str = "LPe11002 4Gb 2-port PCIe";
 		else
-			strcpy(str, "LPe11000 4");
+			model_str = "LPe11000 4Gb PCIe";
 		break;
 	case PCI_DEVICE_ID_ZEPHYR_SCSP:
-		strcpy(str, "LPe11000-SP 4");
+		model_str = "LPe11000-SP 4Gb PCIe";
 		break;
 	case PCI_DEVICE_ID_ZEPHYR_DCSP:
-		strcpy(str, "LPe11002-SP 4");
+		model_str = "LPe11002-SP 4Gb 2-port PCIe";
 		break;
 	case PCI_DEVICE_ID_ZMID:
-		strcpy(str, "LPe1150 4");
+		model_str = "LPe1150 4Gb PCIe";
 		break;
 	case PCI_DEVICE_ID_ZSMB:
-		strcpy(str, "LPe111 4");
+		model_str = "LPe111 4Gb PCIe";
 		break;
 	case PCI_DEVICE_ID_LP101:
-		strcpy(str, "LP101 2");
+		model_str = "LP101 2Gb PCI-X";
 		break;
 	case PCI_DEVICE_ID_LP10000S:
-		strcpy(str, "LP10000-S 2");
-		break;
-	default:
-		memset(str, 0, 16);
+		model_str = "LP10000-S 2Gb PCI";
 		break;
 	case PCI_DEVICE_ID_LP11000S:
-		if (hdrtype == 0x80)
-			strcpy(str, "LP11002-S 4");
-		else
-			strcpy(str, "LP11000-S 4");
-		break;
 	case PCI_DEVICE_ID_LPE11000S:
-		if (hdrtype == 0x80)
-			strcpy(str, "LPe11002-S 4");
-		else
-			strcpy(str, "LPe11000-S 4");
+		pci_read_config_word(phba->pcidev, PCI_SUBSYSTEM_ID,
+				     &dev_subid);
+		switch (dev_subid) {
+		case PCI_SUBSYSTEM_ID_LP11000S:
+			model_str = "LP11002-S 4Gb PCI-X2";
+			break;
+		case PCI_SUBSYSTEM_ID_LP11002S:
+			model_str = "LP11000-S 4Gb 2-port PCI-X2";
+			break;
+		case PCI_SUBSYSTEM_ID_LPE11000S:
+			model_str = "LPe11002-S 4Gb PCIe";
+			break;
+		case PCI_SUBSYSTEM_ID_LPE11002S:
+			model_str = "LPe11002-S 4Gb 2-port PCIe";
+			break;
+		case PCI_SUBSYSTEM_ID_LPE11010S:
+			model_str = "LPe11010-S 4Gb 10-port PCIe";
+			break;
+		default:
+			break;
+		}
+		break;
+	default:
 		break;
 	}
 	if (mdp)
-		sscanf(str, "%s", mdp);
+		sscanf(model_str, "%s", mdp);
 	if (descp)
-		sprintf(descp, "Emulex LightPulse %s Gigabit PCI Fibre "
-			"Channel Adapter", str);
+		sprintf(descp, "Emulex %s Fibre Channel Adapter", model_str);
 }
 
 /**************************************************/
-- 
cgit v1.2.3


From 875fbdfe9b1b4c8f12622a8d8d81428ff0984875 Mon Sep 17 00:00:00 2001
From: "James.Smart@Emulex.Com" <James.Smart@Emulex.Com>
Date: Tue, 29 Nov 2005 16:32:13 -0500
Subject: [SCSI] lpfc 8.1.1 : Add polled-mode support

- Add functionality to run in polled mode only. Includes run time
  attribute to enable mode.
- Enable runtime writable hba settings for coallescing and delay parameters

Customers have requested a mode in the driver to run strictly polled.
This is generally to support an environment where the server is extremely
loaded and is looking to reclaim some cpu cycles from adapter interrupt
handling.

This patch adds a new "poll" attribute, and the following behavior:

if value is 0 (default):
  The driver uses the normal method for i/o completion. It uses the
  firmware feature of interrupt coalesing. The firmware allows a
  minimum number of i/o completions before an interrupt, or a maximum
  time delay between interrupts.  By default, the driver sets these
  to no delay (disabled) or 1 i/o - meaning coalescing is disabled.

  Attributes were provided to change the coalescing values, but it was
  a module-load time only and global across all adapters.
  This patch allows them to be writable on a per-adapter basis.

if value is 1 :
  Interrupts are left enabled, expecting that the user has tuned the
  interrupt coalescing values. When this setting is enabled, the driver
  will attempt to service completed i/o whenever new i/o is submitted
  to the adapter. If the coalescing values are large, and the i/o
  generation rate steady, an interrupt will be avoided by servicing
  completed i/o prior to the coalescing thresholds kicking in. However,
  if the i/o completion load is high enough or i/o generation slow, the
  coalescion values will ensure that completed i/o is serviced in a timely
  fashion.

if value is 3 :
  Turns off FCP i/o interrupts altogether. The coalescing values now have
  no effect. A new attribute "poll_tmo" (default 10ms) exists to set
  the polling interval for i/o completion. When this setting is enabled,
  the driver will attempt to service completed i/o and restart the
  interval timer whenever new i/o is submitted. This behavior allows for
  servicing of completed i/o sooner than the interval timer, but ensures
  that if no i/o is being issued, then the interval timer will kick in
  to service the outstanding i/o.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---
 drivers/scsi/lpfc/lpfc.h      |  10 ++
 drivers/scsi/lpfc/lpfc_attr.c |  92 +++++++++++++++++-
 drivers/scsi/lpfc/lpfc_crtn.h |   3 +
 drivers/scsi/lpfc/lpfc_init.c |  16 ++++
 drivers/scsi/lpfc/lpfc_scsi.c |  72 ++++++++++++--
 drivers/scsi/lpfc/lpfc_sli.c  | 217 ++++++++++++++++++++++++++++++++++++++----
 6 files changed, 377 insertions(+), 33 deletions(-)

(limited to 'drivers/scsi/lpfc')

diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index dc73a2f8f12c..1f3873ae9d68 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -45,6 +45,11 @@ struct lpfc_sli2_slim;
 
 #define MAX_HBAEVT	32
 
+enum lpfc_polling_flags {
+	ENABLE_FCP_RING_POLLING = 0x1,
+	DISABLE_FCP_RING_INT    = 0x2
+};
+
 /* Provide DMA memory definitions the driver uses per port instance. */
 struct lpfc_dmabuf {
 	struct list_head list;
@@ -287,6 +292,8 @@ struct lpfc_hba {
 	uint32_t cfg_fcp_bind_method;
 	uint32_t cfg_discovery_threads;
 	uint32_t cfg_max_luns;
+	uint32_t cfg_poll;
+	uint32_t cfg_poll_tmo;
 	uint32_t cfg_sg_seg_cnt;
 	uint32_t cfg_sg_dma_buf_size;
 
@@ -338,7 +345,9 @@ struct lpfc_hba {
 #define VPD_PORT            0x8         /* valid vpd port data */
 #define VPD_MASK            0xf         /* mask for any vpd data */
 
+	struct timer_list fcp_poll_timer;
 	struct timer_list els_tmofunc;
+
 	/*
 	 * stat  counters
 	 */
@@ -349,6 +358,7 @@ struct lpfc_hba {
 	struct lpfc_sysfs_mbox sysfs_mbox;
 
 	/* fastpath list. */
+	spinlock_t scsi_buf_list_lock;
 	struct list_head lpfc_scsi_buf_list;
 	uint32_t total_scsi_bufs;
 	struct list_head lpfc_iocb_list;
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 89e8222bc7cc..5625a8c2a8fd 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -278,6 +278,71 @@ lpfc_board_online_store(struct class_device *cdev, const char *buf,
 		return -EIO;
 }
 
+static ssize_t
+lpfc_poll_show(struct class_device *cdev, char *buf)
+{
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
+
+	return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
+}
+
+static ssize_t
+lpfc_poll_store(struct class_device *cdev, const char *buf,
+		size_t count)
+{
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
+	uint32_t creg_val;
+	uint32_t old_val;
+	int val=0;
+
+	if (!isdigit(buf[0]))
+		return -EINVAL;
+
+	if (sscanf(buf, "%i", &val) != 1)
+		return -EINVAL;
+
+	if ((val & 0x3) != val)
+		return -EINVAL;
+
+	spin_lock_irq(phba->host->host_lock);
+
+	old_val = phba->cfg_poll;
+
+	if (val & ENABLE_FCP_RING_POLLING) {
+		if ((val & DISABLE_FCP_RING_INT) &&
+		    !(old_val & DISABLE_FCP_RING_INT)) {
+			creg_val = readl(phba->HCregaddr);
+			creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
+			writel(creg_val, phba->HCregaddr);
+			readl(phba->HCregaddr); /* flush */
+
+			lpfc_poll_start_timer(phba);
+		}
+	} else if (val != 0x0) {
+		spin_unlock_irq(phba->host->host_lock);
+		return -EINVAL;
+	}
+
+	if (!(val & DISABLE_FCP_RING_INT) &&
+	    (old_val & DISABLE_FCP_RING_INT))
+	{
+		spin_unlock_irq(phba->host->host_lock);
+		del_timer(&phba->fcp_poll_timer);
+		spin_lock_irq(phba->host->host_lock);
+		creg_val = readl(phba->HCregaddr);
+		creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
+		writel(creg_val, phba->HCregaddr);
+		readl(phba->HCregaddr); /* flush */
+	}
+
+	phba->cfg_poll = val;
+
+	spin_unlock_irq(phba->host->host_lock);
+
+	return strlen(buf);
+}
 
 #define lpfc_param_show(attr)	\
 static ssize_t \
@@ -416,6 +481,15 @@ static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
 static CLASS_DEVICE_ATTR(board_online, S_IRUGO | S_IWUSR,
 			 lpfc_board_online_show, lpfc_board_online_store);
 
+static int lpfc_poll = 0;
+module_param(lpfc_poll, int, 0);
+MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
+		 " 0 - none,"
+		 " 1 - poll with interrupts enabled"
+		 " 3 - poll and disable FCP ring interrupts");
+
+static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
+			 lpfc_poll_show, lpfc_poll_store);
 
 /*
 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
@@ -523,10 +597,10 @@ LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
 # cr_delay is set to 0.
 */
-LPFC_ATTR(cr_delay, 0, 0, 63, "A count of milliseconds after which an"
+LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an"
 		"interrupt response is generated");
 
-LPFC_ATTR(cr_count, 1, 1, 255, "A count of I/O completions after which an"
+LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an"
 		"interrupt response is generated");
 
 /*
@@ -553,6 +627,13 @@ LPFC_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands"
 LPFC_ATTR_R(max_luns, 256, 1, 32768,
 	     "Maximum number of LUNs per target driver will support");
 
+/*
+# lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
+# Value range is [1,255], default value is 10.
+*/
+LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
+	     "Milliseconds driver will wait between polling FCP ring");
+
 struct class_device_attribute *lpfc_host_attrs[] = {
 	&class_device_attr_info,
 	&class_device_attr_serialnum,
@@ -575,11 +656,15 @@ struct class_device_attribute *lpfc_host_attrs[] = {
 	&class_device_attr_lpfc_topology,
 	&class_device_attr_lpfc_scan_down,
 	&class_device_attr_lpfc_link_speed,
+	&class_device_attr_lpfc_cr_delay,
+	&class_device_attr_lpfc_cr_count,
 	&class_device_attr_lpfc_fdmi_on,
 	&class_device_attr_lpfc_max_luns,
 	&class_device_attr_nport_evt_cnt,
 	&class_device_attr_management_version,
 	&class_device_attr_board_online,
+	&class_device_attr_lpfc_poll,
+	&class_device_attr_lpfc_poll_tmo,
 	NULL,
 };
 
@@ -1292,6 +1377,9 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
 	lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
 	lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
 	lpfc_max_luns_init(phba, lpfc_max_luns);
+	lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
+
+	phba->cfg_poll = lpfc_poll;
 
 	/*
 	 * The total number of segments is the configuration value plus 2
diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h
index d527d05a607f..f1e708946e66 100644
--- a/drivers/scsi/lpfc/lpfc_crtn.h
+++ b/drivers/scsi/lpfc/lpfc_crtn.h
@@ -143,6 +143,9 @@ LPFC_MBOXQ_t *lpfc_mbox_get(struct lpfc_hba *);
 int lpfc_mem_alloc(struct lpfc_hba *);
 void lpfc_mem_free(struct lpfc_hba *);
 
+void lpfc_poll_timeout(unsigned long ptr);
+void lpfc_poll_start_timer(struct lpfc_hba * phba);
+void lpfc_sli_poll_fcp_ring(struct lpfc_hba * hba);
 struct lpfc_iocbq * lpfc_sli_get_iocbq(struct lpfc_hba *);
 void lpfc_sli_release_iocbq(struct lpfc_hba * phba, struct lpfc_iocbq * iocb);
 uint16_t lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_iocbq * iocb);
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 766dac230a6c..db3c2ad4e941 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -370,6 +370,10 @@ lpfc_config_port_post(struct lpfc_hba * phba)
 	if (psli->num_rings > 3)
 		status |= HC_R3INT_ENA;
 
+	if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
+	    (phba->cfg_poll & DISABLE_FCP_RING_INT))
+		status &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
+
 	writel(status, phba->HCregaddr);
 	readl(phba->HCregaddr); /* flush */
 	spin_unlock_irq(phba->host->host_lock);
@@ -1237,6 +1241,7 @@ lpfc_stop_timer(struct lpfc_hba * phba)
 		}
 	}
 
+	del_timer_sync(&phba->fcp_poll_timer);
 	del_timer_sync(&phba->fc_estabtmo);
 	del_timer_sync(&phba->fc_disctmo);
 	del_timer_sync(&phba->fc_fdmitmo);
@@ -1416,6 +1421,10 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
 	psli->mbox_tmo.function = lpfc_mbox_timeout;
 	psli->mbox_tmo.data = (unsigned long)phba;
 
+	init_timer(&phba->fcp_poll_timer);
+	phba->fcp_poll_timer.function = lpfc_poll_timeout;
+	phba->fcp_poll_timer.data = (unsigned long)phba;
+
 	/*
 	 * Get all the module params for configuring this host and then
 	 * establish the host parameters.
@@ -1530,6 +1539,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
 	host->max_cmd_len = 16;
 
 	/* Initialize the list of scsi buffers used by driver for scsi IO. */
+	spin_lock_init(&phba->scsi_buf_list_lock);
 	INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
 
 	host->transportt = lpfc_transport_template;
@@ -1561,6 +1571,12 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
 	if (error)
 		goto out_free_irq;
 
+	if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
+		spin_lock_irq(phba->host->host_lock);
+		lpfc_poll_start_timer(phba);
+		spin_unlock_irq(phba->host->host_lock);
+	}
+
 	/*
 	 * set fixed host attributes
 	 * Must done after lpfc_sli_hba_setup()
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 7dc7810b7482..c422220db0ae 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -151,18 +151,22 @@ lpfc_new_scsi_buf(struct lpfc_hba * phba)
 }
 
 struct  lpfc_scsi_buf*
-lpfc_sli_get_scsi_buf(struct lpfc_hba * phba)
+lpfc_get_scsi_buf(struct lpfc_hba * phba)
 {
 	struct  lpfc_scsi_buf * lpfc_cmd = NULL;
 	struct list_head *scsi_buf_list = &phba->lpfc_scsi_buf_list;
+	unsigned long iflag = 0;
 
+	spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
 	list_remove_head(scsi_buf_list, lpfc_cmd, struct lpfc_scsi_buf, list);
+	spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
 	return  lpfc_cmd;
 }
 
 static void
 lpfc_release_scsi_buf(struct lpfc_hba * phba, struct lpfc_scsi_buf * psb)
 {
+	unsigned long iflag = 0;
 	/*
 	 * There are only two special cases to consider.  (1) the scsi command
 	 * requested scatter-gather usage or (2) the scsi command allocated
@@ -180,8 +184,10 @@ lpfc_release_scsi_buf(struct lpfc_hba * phba, struct lpfc_scsi_buf * psb)
 		 }
 	}
 
+	spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
 	psb->pCmd = NULL;
 	list_add_tail(&psb->list, &phba->lpfc_scsi_buf_list);
+	spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
 }
 
 static int
@@ -403,7 +409,6 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 	struct lpfc_rport_data *rdata = lpfc_cmd->rdata;
 	struct lpfc_nodelist *pnode = rdata->pnode;
 	struct scsi_cmnd *cmd = lpfc_cmd->pCmd;
-	unsigned long iflag;
 
 	lpfc_cmd->result = pIocbOut->iocb.un.ulpWord[4];
 	lpfc_cmd->status = pIocbOut->iocb.ulpStatus;
@@ -457,9 +462,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 
 	cmd->scsi_done(cmd);
 
-	spin_lock_irqsave(phba->host->host_lock, iflag);
 	lpfc_release_scsi_buf(phba, lpfc_cmd);
-	spin_unlock_irqrestore(phba->host->host_lock, iflag);
 }
 
 static void
@@ -707,6 +710,37 @@ lpfc_info(struct Scsi_Host *host)
 	return lpfcinfobuf;
 }
 
+static __inline__ void lpfc_poll_rearm_timer(struct lpfc_hba * phba)
+{
+	unsigned long  poll_tmo_expires =
+		(jiffies + msecs_to_jiffies(phba->cfg_poll_tmo));
+
+	if (phba->sli.ring[LPFC_FCP_RING].txcmplq_cnt)
+		mod_timer(&phba->fcp_poll_timer,
+			  poll_tmo_expires);
+}
+
+void lpfc_poll_start_timer(struct lpfc_hba * phba)
+{
+	lpfc_poll_rearm_timer(phba);
+}
+
+void lpfc_poll_timeout(unsigned long ptr)
+{
+	struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
+	unsigned long iflag;
+
+	spin_lock_irqsave(phba->host->host_lock, iflag);
+
+	if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
+		lpfc_sli_poll_fcp_ring (phba);
+		if (phba->cfg_poll & DISABLE_FCP_RING_INT)
+			lpfc_poll_rearm_timer(phba);
+	}
+
+	spin_unlock_irqrestore(phba->host->host_lock, iflag);
+}
+
 static int
 lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
 {
@@ -733,7 +767,7 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
 		cmnd->result = ScsiResult(DID_BUS_BUSY, 0);
 		goto out_fail_command;
 	}
-	lpfc_cmd = lpfc_sli_get_scsi_buf (phba);
+	lpfc_cmd = lpfc_get_scsi_buf (phba);
 	if (lpfc_cmd == NULL) {
 		lpfc_printf_log(phba, KERN_INFO, LOG_FCP,
 				"%d:0707 driver's buffer pool is empty, "
@@ -761,11 +795,17 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
 				&lpfc_cmd->cur_iocbq, SLI_IOCB_RET_IOCB);
 	if (err)
 		goto out_host_busy_free_buf;
+
+	if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
+		lpfc_sli_poll_fcp_ring(phba);
+		if (phba->cfg_poll & DISABLE_FCP_RING_INT)
+			lpfc_poll_rearm_timer(phba);
+	}
+
 	return 0;
 
  out_host_busy_free_buf:
 	lpfc_release_scsi_buf(phba, lpfc_cmd);
-	cmnd->host_scribble = NULL;
  out_host_busy:
 	return SCSI_MLQUEUE_HOST_BUSY;
 
@@ -839,9 +879,15 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
 		goto out;
 	}
 
+	if (phba->cfg_poll & DISABLE_FCP_RING_INT)
+		lpfc_sli_poll_fcp_ring (phba);
+
 	/* Wait for abort to complete */
 	while (lpfc_cmd->pCmd == cmnd)
 	{
+		if (phba->cfg_poll & DISABLE_FCP_RING_INT)
+			lpfc_sli_poll_fcp_ring (phba);
+
 		spin_unlock_irq(phba->host->host_lock);
 			schedule_timeout_uninterruptible(LPFC_ABORT_WAIT*HZ);
 		spin_lock_irq(phba->host->host_lock);
@@ -905,7 +951,7 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
 			break;
 	}
 
-	lpfc_cmd = lpfc_sli_get_scsi_buf (phba);
+	lpfc_cmd = lpfc_get_scsi_buf (phba);
 	if (lpfc_cmd == NULL)
 		goto out;
 
@@ -1001,7 +1047,7 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
 	lpfc_block_requests(phba);
 	spin_lock_irq(shost->host_lock);
 
-	lpfc_cmd = lpfc_sli_get_scsi_buf (phba);
+	lpfc_cmd = lpfc_get_scsi_buf(phba);
 	if (lpfc_cmd == NULL)
 		goto out;
 
@@ -1136,10 +1182,10 @@ lpfc_slave_alloc(struct scsi_device *sdev)
 			break;
 		}
 
-		spin_lock_irqsave(phba->host->host_lock, flags);
+		spin_lock_irqsave(&phba->scsi_buf_list_lock, flags);
 		phba->total_scsi_bufs++;
 		list_add_tail(&scsi_buf->list, &phba->lpfc_scsi_buf_list);
-		spin_unlock_irqrestore(phba->host->host_lock, flags);
+		spin_unlock_irqrestore(&phba->scsi_buf_list_lock, flags);
 	}
 	return 0;
 }
@@ -1163,6 +1209,12 @@ lpfc_slave_configure(struct scsi_device *sdev)
 	 */
 	rport->dev_loss_tmo = phba->cfg_nodev_tmo + 5;
 
+	if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
+		lpfc_sli_poll_fcp_ring(phba);
+		if (phba->cfg_poll & DISABLE_FCP_RING_INT)
+			lpfc_poll_rearm_timer(phba);
+	}
+
 	return 0;
 }
 
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index e2c08c5d83fb..7b785ade8b07 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -886,6 +886,182 @@ lpfc_sli_process_sol_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring,
 	return rc;
 }
 
+static void lpfc_sli_rsp_pointers_error(struct lpfc_hba * phba,
+					struct lpfc_sli_ring * pring)
+{
+	struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
+	/*
+	 * Ring <ringno> handler: portRspPut <portRspPut> is bigger then
+	 * rsp ring <portRspMax>
+	 */
+	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+			"%d:0312 Ring %d handler: portRspPut %d "
+			"is bigger then rsp ring %d\n",
+			phba->brd_no, pring->ringno,
+			le32_to_cpu(pgp->rspPutInx),
+			pring->numRiocb);
+
+	phba->hba_state = LPFC_HBA_ERROR;
+
+	/*
+	 * All error attention handlers are posted to
+	 * worker thread
+	 */
+	phba->work_ha |= HA_ERATT;
+	phba->work_hs = HS_FFER3;
+	if (phba->work_wait)
+		wake_up(phba->work_wait);
+
+	return;
+}
+
+void lpfc_sli_poll_fcp_ring(struct lpfc_hba * phba)
+{
+	struct lpfc_sli      * psli   = &phba->sli;
+	struct lpfc_sli_ring * pring = &psli->ring[LPFC_FCP_RING];
+	IOCB_t *irsp = NULL;
+	IOCB_t *entry = NULL;
+	struct lpfc_iocbq *cmdiocbq = NULL;
+	struct lpfc_iocbq rspiocbq;
+	struct lpfc_pgp *pgp;
+	uint32_t status;
+	uint32_t portRspPut, portRspMax;
+	int type;
+	uint32_t rsp_cmpl = 0;
+	void __iomem *to_slim;
+	uint32_t ha_copy;
+
+	pring->stats.iocb_event++;
+
+	/* The driver assumes SLI-2 mode */
+	pgp =  &phba->slim2p->mbx.us.s2.port[pring->ringno];
+
+	/*
+	 * The next available response entry should never exceed the maximum
+	 * entries.  If it does, treat it as an adapter hardware error.
+	 */
+	portRspMax = pring->numRiocb;
+	portRspPut = le32_to_cpu(pgp->rspPutInx);
+	if (unlikely(portRspPut >= portRspMax)) {
+		lpfc_sli_rsp_pointers_error(phba, pring);
+		return;
+	}
+
+	rmb();
+	while (pring->rspidx != portRspPut) {
+
+		entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
+
+		if (++pring->rspidx >= portRspMax)
+			pring->rspidx = 0;
+
+		lpfc_sli_pcimem_bcopy((uint32_t *) entry,
+				      (uint32_t *) &rspiocbq.iocb,
+				      sizeof (IOCB_t));
+		irsp = &rspiocbq.iocb;
+		type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
+		pring->stats.iocb_rsp++;
+		rsp_cmpl++;
+
+		if (unlikely(irsp->ulpStatus)) {
+			/* Rsp ring <ringno> error: IOCB */
+			lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+					"%d:0326 Rsp Ring %d error: IOCB Data: "
+					"x%x x%x x%x x%x x%x x%x x%x x%x\n",
+					phba->brd_no, pring->ringno,
+					irsp->un.ulpWord[0],
+					irsp->un.ulpWord[1],
+					irsp->un.ulpWord[2],
+					irsp->un.ulpWord[3],
+					irsp->un.ulpWord[4],
+					irsp->un.ulpWord[5],
+					*(((uint32_t *) irsp) + 6),
+					*(((uint32_t *) irsp) + 7));
+		}
+
+		switch (type) {
+		case LPFC_ABORT_IOCB:
+		case LPFC_SOL_IOCB:
+			/*
+			 * Idle exchange closed via ABTS from port.  No iocb
+			 * resources need to be recovered.
+			 */
+			if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
+				printk(KERN_INFO "%s: IOCB cmd 0x%x processed."
+				       " Skipping completion\n", __FUNCTION__,
+				       irsp->ulpCommand);
+				break;
+			}
+
+			cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
+							 &rspiocbq);
+			if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
+				(cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
+						      &rspiocbq);
+			}
+			break;
+		default:
+			if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
+				char adaptermsg[LPFC_MAX_ADPTMSG];
+				memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
+				memcpy(&adaptermsg[0], (uint8_t *) irsp,
+				       MAX_MSG_DATA);
+				dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s",
+					 phba->brd_no, adaptermsg);
+			} else {
+				/* Unknown IOCB command */
+				lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+						"%d:0321 Unknown IOCB command "
+						"Data: x%x, x%x x%x x%x x%x\n",
+						phba->brd_no, type,
+						irsp->ulpCommand,
+						irsp->ulpStatus,
+						irsp->ulpIoTag,
+						irsp->ulpContext);
+			}
+			break;
+		}
+
+		/*
+		 * The response IOCB has been processed.  Update the ring
+		 * pointer in SLIM.  If the port response put pointer has not
+		 * been updated, sync the pgp->rspPutInx and fetch the new port
+		 * response put pointer.
+		 */
+		to_slim = phba->MBslimaddr +
+			(SLIMOFF + (pring->ringno * 2) + 1) * 4;
+		writeb(pring->rspidx, to_slim);
+
+		if (pring->rspidx == portRspPut)
+			portRspPut = le32_to_cpu(pgp->rspPutInx);
+	}
+
+	ha_copy = readl(phba->HAregaddr);
+	ha_copy >>= (LPFC_FCP_RING * 4);
+
+	if ((rsp_cmpl > 0) && (ha_copy & HA_R0RE_REQ)) {
+		pring->stats.iocb_rsp_full++;
+		status = ((CA_R0ATT | CA_R0RE_RSP) << (LPFC_FCP_RING * 4));
+		writel(status, phba->CAregaddr);
+		readl(phba->CAregaddr);
+	}
+	if ((ha_copy & HA_R0CE_RSP) &&
+	    (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
+		pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
+		pring->stats.iocb_cmd_empty++;
+
+		/* Force update of the local copy of cmdGetInx */
+		pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
+		lpfc_sli_resume_iocb(phba, pring);
+
+		if ((pring->lpfc_sli_cmd_available))
+			(pring->lpfc_sli_cmd_available) (phba, pring);
+
+	}
+
+	return;
+}
+
 /*
  * This routine presumes LPFC_FCP_RING handling and doesn't bother
  * to check it explicitly.
@@ -917,24 +1093,7 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
 	portRspMax = pring->numRiocb;
 	portRspPut = le32_to_cpu(pgp->rspPutInx);
 	if (unlikely(portRspPut >= portRspMax)) {
-		/*
-		 * Ring <ringno> handler: portRspPut <portRspPut> is bigger then
-		 * rsp ring <portRspMax>
-		 */
-		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
-				"%d:0312 Ring %d handler: portRspPut %d "
-				"is bigger then rsp ring %d\n",
-				phba->brd_no, pring->ringno, portRspPut,
-				portRspMax);
-
-		phba->hba_state = LPFC_HBA_ERROR;
-
-		/* All error attention handlers are posted to worker thread */
-		phba->work_ha |= HA_ERATT;
-		phba->work_hs = HS_FFER3;
-		if (phba->work_wait)
-			wake_up(phba->work_wait);
-
+		lpfc_sli_rsp_pointers_error(phba, pring);
 		spin_unlock_irqrestore(phba->host->host_lock, iflag);
 		return 1;
 	}
@@ -947,6 +1106,10 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
 		 * network byte order and pci byte orders are different.
 		 */
 		entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
+
+		if (++pring->rspidx >= portRspMax)
+			pring->rspidx = 0;
+
 		lpfc_sli_pcimem_bcopy((uint32_t *) entry,
 				      (uint32_t *) &rspiocbq.iocb,
 				      sizeof (IOCB_t));
@@ -1020,9 +1183,6 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
 		 * been updated, sync the pgp->rspPutInx and fetch the new port
 		 * response put pointer.
 		 */
-		if (++pring->rspidx >= portRspMax)
-			pring->rspidx = 0;
-
 		to_slim = phba->MBslimaddr +
 			(SLIMOFF + (pring->ringno * 2) + 1) * 4;
 		writel(pring->rspidx, to_slim);
@@ -2615,6 +2775,7 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba,
 	DECLARE_WAIT_QUEUE_HEAD(done_q);
 	long timeleft, timeout_req = 0;
 	int retval = IOCB_SUCCESS;
+	uint32_t creg_val;
 
 	/*
 	 * If the caller has provided a response iocbq buffer, then context2
@@ -2630,6 +2791,13 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba,
 	piocb->context_un.wait_queue = &done_q;
 	piocb->iocb_flag &= ~LPFC_IO_WAKE;
 
+	if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
+		creg_val = readl(phba->HCregaddr);
+		creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
+		writel(creg_val, phba->HCregaddr);
+		readl(phba->HCregaddr); /* flush */
+	}
+
 	retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0);
 	if (retval == IOCB_SUCCESS) {
 		timeout_req = timeout * HZ;
@@ -2663,6 +2831,13 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba,
 		retval = IOCB_ERROR;
 	}
 
+	if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
+		creg_val = readl(phba->HCregaddr);
+		creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
+		writel(creg_val, phba->HCregaddr);
+		readl(phba->HCregaddr); /* flush */
+	}
+
 	if (prspiocbq)
 		piocb->context2 = NULL;
 
-- 
cgit v1.2.3


From 445cf4f4d2aa28f6ddd1d7a5f0986341ad61ec91 Mon Sep 17 00:00:00 2001
From: "James.Smart@Emulex.Com" <James.Smart@Emulex.Com>
Date: Mon, 28 Nov 2005 11:42:38 -0500
Subject: [SCSI] lpfc 8.1.1 : Added code to adjust lun queue depth to avoid
 target overloading

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---
 drivers/scsi/lpfc/lpfc.h      |  3 ++-
 drivers/scsi/lpfc/lpfc_disc.h |  2 ++
 drivers/scsi/lpfc/lpfc_scsi.c | 58 +++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 62 insertions(+), 1 deletion(-)

(limited to 'drivers/scsi/lpfc')

diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 1f3873ae9d68..38ffa8d6e629 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -29,9 +29,10 @@ struct lpfc_sli2_slim;
 #define LPFC_LC_HBA_Q_DEPTH	1024	/* max cmds per low cost hba */
 #define LPFC_LP101_HBA_Q_DEPTH	128	/* max cmds per low cost hba */
 
-#define LPFC_CMD_PER_LUN	30	/* max outstanding cmds per lun */
+#define LPFC_CMD_PER_LUN	3	/* max outstanding cmds per lun */
 #define LPFC_SG_SEG_CNT		64	/* sg element count per scsi cmnd */
 #define LPFC_IOCB_LIST_CNT	2250	/* list of IOCBs for fast-path usage. */
+#define LPFC_Q_RAMP_UP_INTERVAL 120     /* lun q_depth ramp up interval */
 
 /* Define macros for 64 bit support */
 #define putPaddrLow(addr)    ((uint32_t) (0xffffffff & (u64)(addr)))
diff --git a/drivers/scsi/lpfc/lpfc_disc.h b/drivers/scsi/lpfc/lpfc_disc.h
index 084e7628ce17..ed6c81660e03 100644
--- a/drivers/scsi/lpfc/lpfc_disc.h
+++ b/drivers/scsi/lpfc/lpfc_disc.h
@@ -73,6 +73,8 @@ struct lpfc_nodelist {
 	struct lpfc_hba      *nlp_phba;
 	struct lpfc_work_evt nodev_timeout_evt;
 	struct lpfc_work_evt els_retry_evt;
+	unsigned long last_ramp_up_time;        /* jiffy of last ramp up */
+	unsigned long last_q_full_time;		/* jiffy of last queue full */
 };
 
 /* Defines for nlp_flag (uint32) */
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index c422220db0ae..9ee8218404c0 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -409,6 +409,9 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 	struct lpfc_rport_data *rdata = lpfc_cmd->rdata;
 	struct lpfc_nodelist *pnode = rdata->pnode;
 	struct scsi_cmnd *cmd = lpfc_cmd->pCmd;
+	int result;
+	struct scsi_device *sdev, *tmp_sdev;
+	int depth = 0;
 
 	lpfc_cmd->result = pIocbOut->iocb.un.ulpWord[4];
 	lpfc_cmd->status = pIocbOut->iocb.ulpStatus;
@@ -460,8 +463,63 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 				*lp, *(lp + 3), cmd->retries, cmd->resid);
 	}
 
+	result = cmd->result;
+	sdev = cmd->device;
 	cmd->scsi_done(cmd);
 
+	if (!result &&
+	   ((jiffies - pnode->last_ramp_up_time) >
+		LPFC_Q_RAMP_UP_INTERVAL * HZ) &&
+	   ((jiffies - pnode->last_q_full_time) >
+		LPFC_Q_RAMP_UP_INTERVAL * HZ) &&
+	   (phba->cfg_lun_queue_depth > sdev->queue_depth)) {
+		shost_for_each_device(tmp_sdev, sdev->host) {
+			if (phba->cfg_lun_queue_depth > tmp_sdev->queue_depth) {
+				if (tmp_sdev->id != sdev->id)
+					continue;
+				if (tmp_sdev->ordered_tags)
+					scsi_adjust_queue_depth(tmp_sdev,
+						MSG_ORDERED_TAG,
+						tmp_sdev->queue_depth+1);
+				else
+					scsi_adjust_queue_depth(tmp_sdev,
+						MSG_SIMPLE_TAG,
+						tmp_sdev->queue_depth+1);
+
+				pnode->last_ramp_up_time = jiffies;
+			}
+		}
+	}
+
+	/*
+	 * Check for queue full.  If the lun is reporting queue full, then
+	 * back off the lun queue depth to prevent target overloads.
+	 */
+	if (result == SAM_STAT_TASK_SET_FULL) {
+		pnode->last_q_full_time = jiffies;
+
+		shost_for_each_device(tmp_sdev, sdev->host) {
+			if (tmp_sdev->id != sdev->id)
+				continue;
+			depth = scsi_track_queue_full(tmp_sdev,
+					tmp_sdev->queue_depth - 1);
+		}
+		/*
+ 		 * The queue depth cannot be lowered any more.
+		 * Modify the returned error code to store
+		 * the final depth value set by
+		 * scsi_track_queue_full.
+		 */
+		if (depth == -1)
+			depth = sdev->host->cmd_per_lun;
+
+		if (depth) {
+			lpfc_printf_log(phba, KERN_WARNING, LOG_FCP,
+				"%d:0711 detected queue full - lun queue depth "
+				" adjusted to %d.\n", phba->brd_no, depth);
+		}
+	}
+
 	lpfc_release_scsi_buf(phba, lpfc_cmd);
 }
 
-- 
cgit v1.2.3


From fefcb2b677fbfce894133e59a34395f8988d4610 Mon Sep 17 00:00:00 2001
From: "James.Smart@Emulex.Com" <James.Smart@Emulex.Com>
Date: Mon, 28 Nov 2005 15:08:56 -0500
Subject: [SCSI] lpfc 8.1.1 : kill use of pci_read_config_xxx

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---
 drivers/scsi/lpfc/lpfc_init.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

(limited to 'drivers/scsi/lpfc')

diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index db3c2ad4e941..b7a603a45328 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -763,14 +763,12 @@ static void
 lpfc_get_hba_model_desc(struct lpfc_hba * phba, uint8_t * mdp, uint8_t * descp)
 {
 	lpfc_vpd_t *vp;
-	uint16_t dev_id;
-	uint16_t dev_subid;
-	uint8_t hdrtype;
+	uint16_t dev_id = phba->pcidev->device;
+	uint16_t dev_subid = phba->pcidev->subsystem_device;
+	uint8_t hdrtype = phba->pcidev->hdr_type;
 	char *model_str = "";
 
 	vp = &phba->vpd;
-	pci_read_config_word(phba->pcidev, PCI_DEVICE_ID, &dev_id);
-	pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
 
 	switch (dev_id) {
 	case PCI_DEVICE_ID_FIREFLY:
@@ -871,8 +869,6 @@ lpfc_get_hba_model_desc(struct lpfc_hba * phba, uint8_t * mdp, uint8_t * descp)
 		break;
 	case PCI_DEVICE_ID_LP11000S:
 	case PCI_DEVICE_ID_LPE11000S:
-		pci_read_config_word(phba->pcidev, PCI_SUBSYSTEM_ID,
-				     &dev_subid);
 		switch (dev_subid) {
 		case PCI_SUBSYSTEM_ID_LP11000S:
 			model_str = "LP11002-S 4Gb PCI-X2";
-- 
cgit v1.2.3


From 1cb25a27d0a3f8296e67e5cc915048db10910d4f Mon Sep 17 00:00:00 2001
From: "James.Smart@Emulex.Com" <James.Smart@Emulex.Com>
Date: Mon, 28 Nov 2005 11:42:49 -0500
Subject: [SCSI] lpfc 8.1.1 : Change version number to 8.1.1

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---
 drivers/scsi/lpfc/lpfc_version.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/scsi/lpfc')

diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h
index 4f0466fbd5f2..fa681a934ffe 100644
--- a/drivers/scsi/lpfc/lpfc_version.h
+++ b/drivers/scsi/lpfc/lpfc_version.h
@@ -18,7 +18,7 @@
  * included with this package.                                     *
  *******************************************************************/
 
-#define LPFC_DRIVER_VERSION "8.1.0"
+#define LPFC_DRIVER_VERSION "8.1.1"
 
 #define LPFC_DRIVER_NAME "lpfc"
 
-- 
cgit v1.2.3