[PATCH v2 RESEND 00/23] scsi: Use pci_enable_msix_range() instead of pci_enable_msix()

[PATCH v2 RESEND 00/23] scsi: Use pci_enable_msix_range() instead of pci_enable_msix()

[Alexander Gordeev]

Hello,

This series is against 3.15-rc1.

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

There are no major changes in this series since I posted
it last time.

Thanks!

Cc: iss_storagedev@hp.com
Cc: intel-linux-scu@intel.com
Cc: support@lsi.com
Cc: DL-MPTFusionLinux@lsi.com
Cc: qla2xxx-upstream@qlogic.com
Cc: iscsi-driver@qlogic.com
Cc: pv-drivers@vmware.com
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org


Alexander Gordeev (23):
  be2iscsi: Use pci_enable_msix_exact() instead of pci_enable_msix()
  bfa: Do not call pci_enable_msix() after it failed once
  bfa: Cleanup bfad_setup_intr() function
  bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()
  csiostor: Remove superfluous call to pci_disable_msix()
  csiostor: Use pci_enable_msix_range() instead of pci_enable_msix()
  fnic: Use pci_enable_msix_exact() instead of pci_enable_msix()
  isci: Use pci_enable_msix_exact() instead of pci_enable_msix()
  hpsa: Fallback to MSI rather than to INTx if MSI-X failed
  hpsa: Use pci_enable_msix_range() instead of pci_enable_msix()
  lpfc: Remove superfluous call to pci_disable_msix()
  lpfc: Use pci_enable_msix_range() instead of pci_enable_msix()
  megaraid: Fail resume if MSI-X re-initialization failed
  megaraid: Use pci_enable_msix_range() instead of pci_enable_msix()
  mpt2sas: Use pci_enable_msix_exact() instead of pci_enable_msix()
  mpt3sas: Use pci_enable_msix_exact() instead of pci_enable_msix()
  pm8001: Fix invalid return when request_irq() failed
  pm8001: Use pci_enable_msix_exact() instead of pci_enable_msix()
  pmcraid: Get rid of a redundant assignment
  pmcraid: Use pci_enable_msix_range() instead of pci_enable_msix()
  qla2xxx: Use pci_enable_msix_range() instead of pci_enable_msix()
  qla4xxx: Use pci_enable_msix_exact() instead of pci_enable_msix()
  vmw_pvscsi: Use pci_enable_msix_exact() instead of pci_enable_msix()

 drivers/scsi/be2iscsi/be_main.c           |    6 +--
 drivers/scsi/bfa/bfad.c                   |   62 ++++++++++++-----------------
 drivers/scsi/csiostor/csio_hw.h           |    2 +-
 drivers/scsi/csiostor/csio_isr.c          |   24 ++++-------
 drivers/scsi/fnic/fnic_isr.c              |    4 +-
 drivers/scsi/hpsa.c                       |   30 ++++++--------
 drivers/scsi/isci/init.c                  |    2 +-
 drivers/scsi/lpfc/lpfc_init.c             |   47 +++++++++++-----------
 drivers/scsi/megaraid/megaraid_sas_base.c |   24 +++++------
 drivers/scsi/mpt2sas/mpt2sas_base.c       |    6 +-
 drivers/scsi/mpt3sas/mpt3sas_base.c       |    4 +-
 drivers/scsi/pm8001/pm8001_init.c         |   44 +++++++++++----------
 drivers/scsi/pmcraid.c                    |   14 +------
 drivers/scsi/qla2xxx/qla_isr.c            |   27 +++++-------
 drivers/scsi/qla4xxx/ql4_nx.c             |    2 +-
 drivers/scsi/vmw_pvscsi.c                 |    2 +-
 16 files changed, 129 insertions(+), 171 deletions(-)

-- 
1.7.7.6

[PATCH v2 RESEND 01/23] be2iscsi: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Alexander Gordeev]

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Acked-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
---
 drivers/scsi/be2iscsi/be_main.c |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 0d82229..279b2f9 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -5282,12 +5282,10 @@ static void beiscsi_msix_enable(struct beiscsi_hba *phba)
 	for (i = 0; i <= phba->num_cpus; i++)
 		phba->msix_entries[i].entry = i;
 
-	status = pci_enable_msix(phba->pcidev, phba->msix_entries,
-				 (phba->num_cpus + 1));
+	status = pci_enable_msix_exact(phba->pcidev, phba->msix_entries,
+				       phba->num_cpus + 1);
 	if (!status)
 		phba->msix_enabled = true;
-
-	return;
 }
 
 /*
-- 
1.7.7.6

[PATCH v2 RESEND 02/23] bfa: Do not call pci_enable_msix() after it failed once

[Alexander Gordeev]

Function pci_enable_msix() should not be called in case
it threw a negative errno from a previous call.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Anil Gurumurthy <agurumur@brocade.com>
Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
---
 drivers/scsi/bfa/bfad.c |   48 ++++++++++++++++++++++------------------------
 1 files changed, 23 insertions(+), 25 deletions(-)

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index cc0fbcd..972ff8d 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1235,33 +1235,31 @@ bfad_setup_intr(struct bfad_s *bfad)
 	   (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
 
 		error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
-		if (error) {
-			/* In CT1 & CT2, try to allocate just one vector */
-			if (bfa_asic_id_ctc(pdev->device)) {
-				printk(KERN_WARNING "bfa %s: trying one msix "
-				       "vector failed to allocate %d[%d]\n",
-				       bfad->pci_name, bfad->nvec, error);
-				bfad->nvec = 1;
-				error = pci_enable_msix(bfad->pcidev,
+		/* In CT1 & CT2, try to allocate just one vector */
+		if (error > 0 && bfa_asic_id_ctc(pdev->device)) {
+			printk(KERN_WARNING "bfa %s: trying one msix "
+			       "vector failed to allocate %d[%d]\n",
+			       bfad->pci_name, bfad->nvec, error);
+			bfad->nvec = 1;
+			error = pci_enable_msix(bfad->pcidev,
 						msix_entries, bfad->nvec);
-			}
+		}
 
-			/*
-			 * Only error number of vector is available.
-			 * We don't have a mechanism to map multiple
-			 * interrupts into one vector, so even if we
-			 * can try to request less vectors, we don't
-			 * know how to associate interrupt events to
-			 *  vectors. Linux doesn't duplicate vectors
-			 * in the MSIX table for this case.
-			 */
-			if (error) {
-				printk(KERN_WARNING "bfad%d: "
-				       "pci_enable_msix failed (%d), "
-				       "use line based.\n",
-					bfad->inst_no, error);
-				goto line_based;
-			}
+		/*
+		 * Only error number of vector is available.
+		 * We don't have a mechanism to map multiple
+		 * interrupts into one vector, so even if we
+		 * can try to request less vectors, we don't
+		 * know how to associate interrupt events to
+		 *  vectors. Linux doesn't duplicate vectors
+		 * in the MSIX table for this case.
+		 */
+		if (error) {
+			printk(KERN_WARNING "bfad%d: "
+			       "pci_enable_msix failed (%d), "
+			       "use line based.\n",
+				bfad->inst_no, error);
+			goto line_based;
 		}
 
 		/* Disable INTX in MSI-X mode */
-- 
1.7.7.6

RE: [PATCH v2 RESEND 02/23] bfa: Do not call pci_enable_msix() after it failed once

[Anil Gurumurthy]

Patch look good.
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>

-----Original Message-----
From: linux-scsi-owner@vger.kernel.org [mailto:linux-scsi-owner@vger.kernel.org] On Behalf Of Alexander Gordeev
Sent: 14 April 2014 13:35
To: linux-kernel
Cc: Alexander Gordeev; Anil Gurumurthy; Vijaya Mohan Guvva; linux-scsi; linux-pci
Subject: [PATCH v2 RESEND 02/23] bfa: Do not call pci_enable_msix() after it failed once

Function pci_enable_msix() should not be called in case it threw a negative errno from a previous call.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Anil Gurumurthy <agurumur@brocade.com>
Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
---
 drivers/scsi/bfa/bfad.c |   48 ++++++++++++++++++++++------------------------
 1 files changed, 23 insertions(+), 25 deletions(-)

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c index cc0fbcd..972ff8d 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1235,33 +1235,31 @@ bfad_setup_intr(struct bfad_s *bfad)
           (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {

                error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
-               if (error) {
-                       /* In CT1 & CT2, try to allocate just one vector */
-                       if (bfa_asic_id_ctc(pdev->device)) {
-                               printk(KERN_WARNING "bfa %s: trying one msix "
-                                      "vector failed to allocate %d[%d]\n",
-                                      bfad->pci_name, bfad->nvec, error);
-                               bfad->nvec = 1;
-                               error = pci_enable_msix(bfad->pcidev,
+               /* In CT1 & CT2, try to allocate just one vector */
+               if (error > 0 && bfa_asic_id_ctc(pdev->device)) {
+                       printk(KERN_WARNING "bfa %s: trying one msix "
+                              "vector failed to allocate %d[%d]\n",
+                              bfad->pci_name, bfad->nvec, error);
+                       bfad->nvec = 1;
+                       error = pci_enable_msix(bfad->pcidev,
                                                msix_entries, bfad->nvec);
-                       }
+               }

-                       /*
-                        * Only error number of vector is available.
-                        * We don't have a mechanism to map multiple
-                        * interrupts into one vector, so even if we
-                        * can try to request less vectors, we don't
-                        * know how to associate interrupt events to
-                        *  vectors. Linux doesn't duplicate vectors
-                        * in the MSIX table for this case.
-                        */
-                       if (error) {
-                               printk(KERN_WARNING "bfad%d: "
-                                      "pci_enable_msix failed (%d), "
-                                      "use line based.\n",
-                                       bfad->inst_no, error);
-                               goto line_based;
-                       }
+               /*
+                * Only error number of vector is available.
+                * We don't have a mechanism to map multiple
+                * interrupts into one vector, so even if we
+                * can try to request less vectors, we don't
+                * know how to associate interrupt events to
+                *  vectors. Linux doesn't duplicate vectors
+                * in the MSIX table for this case.
+                */
+               if (error) {
+                       printk(KERN_WARNING "bfad%d: "
+                              "pci_enable_msix failed (%d), "
+                              "use line based.\n",
+                               bfad->inst_no, error);
+                       goto line_based;
                }

                /* Disable INTX in MSI-X mode */
--
1.7.7.6

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________________________________

This message and any attached documents contain information from QLogic Corporation or its wholly-owned subsidiaries that may be confidential. If you are not the intended recipient, you may not read, copy, distribute, or use this information. If you have received this transmission in error, please notify the sender immediately by reply e-mail and then delete this message.

RE: [PATCH v2 RESEND 02/23] bfa: Do not call pci_enable_msix() after it failed once

[Anil Gurumurthy]

[-- Attachment #1: Type: text/plain, Size: 4790 bytes --]

Patch look good.
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>

-----Original Message-----
From: linux-scsi-owner@vger.kernel.org [mailto:linux-scsi-owner@vger.kernel.org] On Behalf Of Alexander Gordeev
Sent: 14 April 2014 13:35
To: linux-kernel
Cc: Alexander Gordeev; Anil Gurumurthy; Vijaya Mohan Guvva; linux-scsi; linux-pci
Subject: [PATCH v2 RESEND 02/23] bfa: Do not call pci_enable_msix() after it failed once

Function pci_enable_msix() should not be called in case it threw a negative errno from a previous call.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Anil Gurumurthy <agurumur@brocade.com>
Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
---
 drivers/scsi/bfa/bfad.c |   48 ++++++++++++++++++++++------------------------
 1 files changed, 23 insertions(+), 25 deletions(-)

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c index cc0fbcd..972ff8d 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1235,33 +1235,31 @@ bfad_setup_intr(struct bfad_s *bfad)
           (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {

                error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
-               if (error) {
-                       /* In CT1 & CT2, try to allocate just one vector */
-                       if (bfa_asic_id_ctc(pdev->device)) {
-                               printk(KERN_WARNING "bfa %s: trying one msix "
-                                      "vector failed to allocate %d[%d]\n",
-                                      bfad->pci_name, bfad->nvec, error);
-                               bfad->nvec = 1;
-                               error = pci_enable_msix(bfad->pcidev,
+               /* In CT1 & CT2, try to allocate just one vector */
+               if (error > 0 && bfa_asic_id_ctc(pdev->device)) {
+                       printk(KERN_WARNING "bfa %s: trying one msix "
+                              "vector failed to allocate %d[%d]\n",
+                              bfad->pci_name, bfad->nvec, error);
+                       bfad->nvec = 1;
+                       error = pci_enable_msix(bfad->pcidev,
                                                msix_entries, bfad->nvec);
-                       }
+               }

-                       /*
-                        * Only error number of vector is available.
-                        * We don't have a mechanism to map multiple
-                        * interrupts into one vector, so even if we
-                        * can try to request less vectors, we don't
-                        * know how to associate interrupt events to
-                        *  vectors. Linux doesn't duplicate vectors
-                        * in the MSIX table for this case.
-                        */
-                       if (error) {
-                               printk(KERN_WARNING "bfad%d: "
-                                      "pci_enable_msix failed (%d), "
-                                      "use line based.\n",
-                                       bfad->inst_no, error);
-                               goto line_based;
-                       }
+               /*
+                * Only error number of vector is available.
+                * We don't have a mechanism to map multiple
+                * interrupts into one vector, so even if we
+                * can try to request less vectors, we don't
+                * know how to associate interrupt events to
+                *  vectors. Linux doesn't duplicate vectors
+                * in the MSIX table for this case.
+                */
+               if (error) {
+                       printk(KERN_WARNING "bfad%d: "
+                              "pci_enable_msix failed (%d), "
+                              "use line based.\n",
+                               bfad->inst_no, error);
+                       goto line_based;
                }

                /* Disable INTX in MSI-X mode */
--
1.7.7.6

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________________________________

This message and any attached documents contain information from QLogic Corporation or its wholly-owned subsidiaries that may be confidential. If you are not the intended recipient, you may not read, copy, distribute, or use this information. If you have received this transmission in error, please notify the sender immediately by reply e-mail and then delete this message.

[-- Attachment #2: winmail.dat --]
[-- Type: application/ms-tnef, Size: 5652 bytes --]

[PATCH v2 RESEND 03/23] bfa: Cleanup bfad_setup_intr() function

[Alexander Gordeev]

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Anil Gurumurthy <agurumur@brocade.com>
Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
---
 drivers/scsi/bfa/bfad.c |   18 ++++++++----------
 1 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index 972ff8d..e7e4774 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1219,7 +1219,7 @@ bfad_install_msix_handler(struct bfad_s *bfad)
 int
 bfad_setup_intr(struct bfad_s *bfad)
 {
-	int error = 0;
+	int error;
 	u32 mask = 0, i, num_bit = 0, max_bit = 0;
 	struct msix_entry msix_entries[MAX_MSIX_ENTRY];
 	struct pci_dev *pdev = bfad->pcidev;
@@ -1279,20 +1279,18 @@ bfad_setup_intr(struct bfad_s *bfad)
 
 		bfad->bfad_flags |= BFAD_MSIX_ON;
 
-		return error;
+		return 0;
 	}
 
 line_based:
-	error = 0;
-	if (request_irq
-	    (bfad->pcidev->irq, (irq_handler_t) bfad_intx, BFAD_IRQ_FLAGS,
-	     BFAD_DRIVER_NAME, bfad) != 0) {
-		/* Enable interrupt handler failed */
-		return 1;
-	}
+	error = request_irq(bfad->pcidev->irq, (irq_handler_t)bfad_intx,
+			    BFAD_IRQ_FLAGS, BFAD_DRIVER_NAME, bfad);
+	if (error)
+		return error;
+
 	bfad->bfad_flags |= BFAD_INTX_ON;
 
-	return error;
+	return 0;
 }
 
 void
-- 
1.7.7.6

RE: [PATCH v2 RESEND 03/23] bfa: Cleanup bfad_setup_intr() function

[Anil Gurumurthy]

Patch look good.
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>

-----Original Message-----
From: linux-scsi-owner@vger.kernel.org [mailto:linux-scsi-owner@vger.kernel.org] On Behalf Of Alexander Gordeev
Sent: 14 April 2014 13:35
To: linux-kernel
Cc: Alexander Gordeev; Anil Gurumurthy; Vijaya Mohan Guvva; linux-scsi; linux-pci
Subject: [PATCH v2 RESEND 03/23] bfa: Cleanup bfad_setup_intr() function

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Anil Gurumurthy <agurumur@brocade.com>
Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
---
 drivers/scsi/bfa/bfad.c |   18 ++++++++----------
 1 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c index 972ff8d..e7e4774 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1219,7 +1219,7 @@ bfad_install_msix_handler(struct bfad_s *bfad)  int  bfad_setup_intr(struct bfad_s *bfad)  {
-       int error = 0;
+       int error;
        u32 mask = 0, i, num_bit = 0, max_bit = 0;
        struct msix_entry msix_entries[MAX_MSIX_ENTRY];
        struct pci_dev *pdev = bfad->pcidev;
@@ -1279,20 +1279,18 @@ bfad_setup_intr(struct bfad_s *bfad)

                bfad->bfad_flags |= BFAD_MSIX_ON;

-               return error;
+               return 0;
        }

 line_based:
-       error = 0;
-       if (request_irq
-           (bfad->pcidev->irq, (irq_handler_t) bfad_intx, BFAD_IRQ_FLAGS,
-            BFAD_DRIVER_NAME, bfad) != 0) {
-               /* Enable interrupt handler failed */
-               return 1;
-       }
+       error = request_irq(bfad->pcidev->irq, (irq_handler_t)bfad_intx,
+                           BFAD_IRQ_FLAGS, BFAD_DRIVER_NAME, bfad);
+       if (error)
+               return error;
+
        bfad->bfad_flags |= BFAD_INTX_ON;

-       return error;
+       return 0;
 }

 void
--
1.7.7.6

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________________________________

This message and any attached documents contain information from QLogic Corporation or its wholly-owned subsidiaries that may be confidential. If you are not the intended recipient, you may not read, copy, distribute, or use this information. If you have received this transmission in error, please notify the sender immediately by reply e-mail and then delete this message.

RE: [PATCH v2 RESEND 03/23] bfa: Cleanup bfad_setup_intr() function

[Anil Gurumurthy]

[-- Attachment #1: Type: text/plain, Size: 2652 bytes --]

Patch look good.
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>

-----Original Message-----
From: linux-scsi-owner@vger.kernel.org [mailto:linux-scsi-owner@vger.kernel.org] On Behalf Of Alexander Gordeev
Sent: 14 April 2014 13:35
To: linux-kernel
Cc: Alexander Gordeev; Anil Gurumurthy; Vijaya Mohan Guvva; linux-scsi; linux-pci
Subject: [PATCH v2 RESEND 03/23] bfa: Cleanup bfad_setup_intr() function

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Anil Gurumurthy <agurumur@brocade.com>
Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
---
 drivers/scsi/bfa/bfad.c |   18 ++++++++----------
 1 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c index 972ff8d..e7e4774 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1219,7 +1219,7 @@ bfad_install_msix_handler(struct bfad_s *bfad)  int  bfad_setup_intr(struct bfad_s *bfad)  {
-       int error = 0;
+       int error;
        u32 mask = 0, i, num_bit = 0, max_bit = 0;
        struct msix_entry msix_entries[MAX_MSIX_ENTRY];
        struct pci_dev *pdev = bfad->pcidev;
@@ -1279,20 +1279,18 @@ bfad_setup_intr(struct bfad_s *bfad)

                bfad->bfad_flags |= BFAD_MSIX_ON;

-               return error;
+               return 0;
        }

 line_based:
-       error = 0;
-       if (request_irq
-           (bfad->pcidev->irq, (irq_handler_t) bfad_intx, BFAD_IRQ_FLAGS,
-            BFAD_DRIVER_NAME, bfad) != 0) {
-               /* Enable interrupt handler failed */
-               return 1;
-       }
+       error = request_irq(bfad->pcidev->irq, (irq_handler_t)bfad_intx,
+                           BFAD_IRQ_FLAGS, BFAD_DRIVER_NAME, bfad);
+       if (error)
+               return error;
+
        bfad->bfad_flags |= BFAD_INTX_ON;

-       return error;
+       return 0;
 }

 void
--
1.7.7.6

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[-- Attachment #2: winmail.dat --]
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RE: [PATCH v2 RESEND 03/23] bfa: Cleanup bfad_setup_intr() function

[Anil Gurumurthy]

Patch look good.
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>

-----Original Message-----
From: linux-scsi-owner@vger.kernel.org [mailto:linux-scsi-owner@vger.kernel.org] On Behalf Of Alexander Gordeev
Sent: 14 April 2014 13:35
To: linux-kernel
Cc: Alexander Gordeev; Anil Gurumurthy; Vijaya Mohan Guvva; linux-scsi; linux-pci
Subject: [PATCH v2 RESEND 03/23] bfa: Cleanup bfad_setup_intr() function

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Anil Gurumurthy <agurumur@brocade.com>
Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
---
 drivers/scsi/bfa/bfad.c |   18 ++++++++----------
 1 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c index 972ff8d..e7e4774 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1219,7 +1219,7 @@ bfad_install_msix_handler(struct bfad_s *bfad)  int  bfad_setup_intr(struct bfad_s *bfad)  {
-       int error = 0;
+       int error;
        u32 mask = 0, i, num_bit = 0, max_bit = 0;
        struct msix_entry msix_entries[MAX_MSIX_ENTRY];
        struct pci_dev *pdev = bfad->pcidev;
@@ -1279,20 +1279,18 @@ bfad_setup_intr(struct bfad_s *bfad)

                bfad->bfad_flags |= BFAD_MSIX_ON;

-               return error;
+               return 0;
        }

 line_based:
-       error = 0;
-       if (request_irq
-           (bfad->pcidev->irq, (irq_handler_t) bfad_intx, BFAD_IRQ_FLAGS,
-            BFAD_DRIVER_NAME, bfad) != 0) {
-               /* Enable interrupt handler failed */
-               return 1;
-       }
+       error = request_irq(bfad->pcidev->irq, (irq_handler_t)bfad_intx,
+                           BFAD_IRQ_FLAGS, BFAD_DRIVER_NAME, bfad);
+       if (error)
+               return error;
+
        bfad->bfad_flags |= BFAD_INTX_ON;

-       return error;
+       return 0;
 }

 void
--
1.7.7.6

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________________________________

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RE: [PATCH v2 RESEND 03/23] bfa: Cleanup bfad_setup_intr() function

[Anil Gurumurthy]

[-- Attachment #1: Type: text/plain, Size: 2652 bytes --]

Patch look good.
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>

-----Original Message-----
From: linux-scsi-owner@vger.kernel.org [mailto:linux-scsi-owner@vger.kernel.org] On Behalf Of Alexander Gordeev
Sent: 14 April 2014 13:35
To: linux-kernel
Cc: Alexander Gordeev; Anil Gurumurthy; Vijaya Mohan Guvva; linux-scsi; linux-pci
Subject: [PATCH v2 RESEND 03/23] bfa: Cleanup bfad_setup_intr() function

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Anil Gurumurthy <agurumur@brocade.com>
Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
---
 drivers/scsi/bfa/bfad.c |   18 ++++++++----------
 1 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c index 972ff8d..e7e4774 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1219,7 +1219,7 @@ bfad_install_msix_handler(struct bfad_s *bfad)  int  bfad_setup_intr(struct bfad_s *bfad)  {
-       int error = 0;
+       int error;
        u32 mask = 0, i, num_bit = 0, max_bit = 0;
        struct msix_entry msix_entries[MAX_MSIX_ENTRY];
        struct pci_dev *pdev = bfad->pcidev;
@@ -1279,20 +1279,18 @@ bfad_setup_intr(struct bfad_s *bfad)

                bfad->bfad_flags |= BFAD_MSIX_ON;

-               return error;
+               return 0;
        }

 line_based:
-       error = 0;
-       if (request_irq
-           (bfad->pcidev->irq, (irq_handler_t) bfad_intx, BFAD_IRQ_FLAGS,
-            BFAD_DRIVER_NAME, bfad) != 0) {
-               /* Enable interrupt handler failed */
-               return 1;
-       }
+       error = request_irq(bfad->pcidev->irq, (irq_handler_t)bfad_intx,
+                           BFAD_IRQ_FLAGS, BFAD_DRIVER_NAME, bfad);
+       if (error)
+               return error;
+
        bfad->bfad_flags |= BFAD_INTX_ON;

-       return error;
+       return 0;
 }

 void
--
1.7.7.6

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________________________________

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[-- Attachment #2: winmail.dat --]
[-- Type: application/ms-tnef, Size: 5036 bytes --]

[PATCH v2 RESEND 04/23] bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Alexander Gordeev]

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Anil Gurumurthy <agurumur@brocade.com>
Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
 drivers/scsi/bfa/bfad.c |   20 ++++++--------------
 1 files changed, 6 insertions(+), 14 deletions(-)

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index e7e4774..839c81c 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1234,29 +1234,21 @@ bfad_setup_intr(struct bfad_s *bfad)
 	if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
 	   (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
 
-		error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
+		error = pci_enable_msix_exact(bfad->pcidev,
+					      msix_entries, bfad->nvec);
 		/* In CT1 & CT2, try to allocate just one vector */
-		if (error > 0 && bfa_asic_id_ctc(pdev->device)) {
+		if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) {
 			printk(KERN_WARNING "bfa %s: trying one msix "
 			       "vector failed to allocate %d[%d]\n",
 			       bfad->pci_name, bfad->nvec, error);
 			bfad->nvec = 1;
-			error = pci_enable_msix(bfad->pcidev,
-						msix_entries, bfad->nvec);
+			error = pci_enable_msix_exact(bfad->pcidev,
+						      msix_entries, 1);
 		}
 
-		/*
-		 * Only error number of vector is available.
-		 * We don't have a mechanism to map multiple
-		 * interrupts into one vector, so even if we
-		 * can try to request less vectors, we don't
-		 * know how to associate interrupt events to
-		 *  vectors. Linux doesn't duplicate vectors
-		 * in the MSIX table for this case.
-		 */
 		if (error) {
 			printk(KERN_WARNING "bfad%d: "
-			       "pci_enable_msix failed (%d), "
+			       "pci_enable_msix_exact failed (%d), "
 			       "use line based.\n",
 				bfad->inst_no, error);
 			goto line_based;
-- 
1.7.7.6

RE: [PATCH v2 RESEND 04/23] bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Anil Gurumurthy]

Patch look good.
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>

-----Original Message-----
From: linux-scsi-owner@vger.kernel.org [mailto:linux-scsi-owner@vger.kernel.org] On Behalf Of Alexander Gordeev
Sent: 14 April 2014 13:35
To: linux-kernel
Cc: Alexander Gordeev; Anil Gurumurthy; Vijaya Mohan Guvva; linux-scsi; linux-pci
Subject: [PATCH v2 RESEND 04/23] bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers using these two interfaces need to be updated to use the new pci_enable_msi_range()  or pci_enable_msi_exact() and pci_enable_msix_range() or pci_enable_msix_exact() interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Anil Gurumurthy <agurumur@brocade.com>
Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
 drivers/scsi/bfa/bfad.c |   20 ++++++--------------
 1 files changed, 6 insertions(+), 14 deletions(-)

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c index e7e4774..839c81c 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1234,29 +1234,21 @@ bfad_setup_intr(struct bfad_s *bfad)
        if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
           (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {

-               error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
+               error = pci_enable_msix_exact(bfad->pcidev,
+                                             msix_entries, bfad->nvec);
                /* In CT1 & CT2, try to allocate just one vector */
-               if (error > 0 && bfa_asic_id_ctc(pdev->device)) {
+               if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) {
                        printk(KERN_WARNING "bfa %s: trying one msix "
                               "vector failed to allocate %d[%d]\n",
                               bfad->pci_name, bfad->nvec, error);
                        bfad->nvec = 1;
-                       error = pci_enable_msix(bfad->pcidev,
-                                               msix_entries, bfad->nvec);
+                       error = pci_enable_msix_exact(bfad->pcidev,
+                                                     msix_entries, 1);
                }

-               /*
-                * Only error number of vector is available.
-                * We don't have a mechanism to map multiple
-                * interrupts into one vector, so even if we
-                * can try to request less vectors, we don't
-                * know how to associate interrupt events to
-                *  vectors. Linux doesn't duplicate vectors
-                * in the MSIX table for this case.
-                */
                if (error) {
                        printk(KERN_WARNING "bfad%d: "
-                              "pci_enable_msix failed (%d), "
+                              "pci_enable_msix_exact failed (%d), "
                               "use line based.\n",
                                bfad->inst_no, error);
                        goto line_based;
--
1.7.7.6

--
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________________________________

This message and any attached documents contain information from QLogic Corporation or its wholly-owned subsidiaries that may be confidential. If you are not the intended recipient, you may not read, copy, distribute, or use this information. If you have received this transmission in error, please notify the sender immediately by reply e-mail and then delete this message.

RE: [PATCH v2 RESEND 04/23] bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Anil Gurumurthy]

[-- Attachment #1: Type: text/plain, Size: 3858 bytes --]

Patch look good.
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>

-----Original Message-----
From: linux-scsi-owner@vger.kernel.org [mailto:linux-scsi-owner@vger.kernel.org] On Behalf Of Alexander Gordeev
Sent: 14 April 2014 13:35
To: linux-kernel
Cc: Alexander Gordeev; Anil Gurumurthy; Vijaya Mohan Guvva; linux-scsi; linux-pci
Subject: [PATCH v2 RESEND 04/23] bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers using these two interfaces need to be updated to use the new pci_enable_msi_range()  or pci_enable_msi_exact() and pci_enable_msix_range() or pci_enable_msix_exact() interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Anil Gurumurthy <agurumur@brocade.com>
Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
 drivers/scsi/bfa/bfad.c |   20 ++++++--------------
 1 files changed, 6 insertions(+), 14 deletions(-)

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c index e7e4774..839c81c 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1234,29 +1234,21 @@ bfad_setup_intr(struct bfad_s *bfad)
        if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
           (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {

-               error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
+               error = pci_enable_msix_exact(bfad->pcidev,
+                                             msix_entries, bfad->nvec);
                /* In CT1 & CT2, try to allocate just one vector */
-               if (error > 0 && bfa_asic_id_ctc(pdev->device)) {
+               if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) {
                        printk(KERN_WARNING "bfa %s: trying one msix "
                               "vector failed to allocate %d[%d]\n",
                               bfad->pci_name, bfad->nvec, error);
                        bfad->nvec = 1;
-                       error = pci_enable_msix(bfad->pcidev,
-                                               msix_entries, bfad->nvec);
+                       error = pci_enable_msix_exact(bfad->pcidev,
+                                                     msix_entries, 1);
                }

-               /*
-                * Only error number of vector is available.
-                * We don't have a mechanism to map multiple
-                * interrupts into one vector, so even if we
-                * can try to request less vectors, we don't
-                * know how to associate interrupt events to
-                *  vectors. Linux doesn't duplicate vectors
-                * in the MSIX table for this case.
-                */
                if (error) {
                        printk(KERN_WARNING "bfad%d: "
-                              "pci_enable_msix failed (%d), "
+                              "pci_enable_msix_exact failed (%d), "
                               "use line based.\n",
                                bfad->inst_no, error);
                        goto line_based;
--
1.7.7.6

--
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________________________________

This message and any attached documents contain information from QLogic Corporation or its wholly-owned subsidiaries that may be confidential. If you are not the intended recipient, you may not read, copy, distribute, or use this information. If you have received this transmission in error, please notify the sender immediately by reply e-mail and then delete this message.

[-- Attachment #2: winmail.dat --]
[-- Type: application/ms-tnef, Size: 5574 bytes --]

[PATCH v2 RESEND 05/23] csiostor: Remove superfluous call to pci_disable_msix()

[Alexander Gordeev]

There is no need to call pci_disable_msix() in case
the previous call to pci_enable_msix() failed

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Naresh Kumar Inna <naresh@chelsio.com>
Cc: Arvind Bhushan <arvindb@chelsio.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
 drivers/scsi/csiostor/csio_isr.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/csiostor/csio_isr.c b/drivers/scsi/csiostor/csio_isr.c
index 7ee9777..91ba91d 100644
--- a/drivers/scsi/csiostor/csio_isr.c
+++ b/drivers/scsi/csiostor/csio_isr.c
@@ -529,10 +529,8 @@ csio_enable_msix(struct csio_hw *hw)
 			csio_reduce_sqsets(hw, cnt - extra);
 		}
 	} else {
-		if (rv > 0) {
-			pci_disable_msix(hw->pdev);
+		if (rv > 0)
 			csio_info(hw, "Not using MSI-X, remainder:%d\n", rv);
-		}
 
 		kfree(entries);
 		return -ENOMEM;
-- 
1.7.7.6

[PATCH v2 RESEND 06/23] csiostor: Use pci_enable_msix_range() instead of pci_enable_msix()

[Alexander Gordeev]

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Naresh Kumar Inna <naresh@chelsio.com>
Cc: Arvind Bhushan <arvindb@chelsio.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
 drivers/scsi/csiostor/csio_hw.h  |    2 +-
 drivers/scsi/csiostor/csio_isr.c |   22 +++++++++-------------
 2 files changed, 10 insertions(+), 14 deletions(-)

diff --git a/drivers/scsi/csiostor/csio_hw.h b/drivers/scsi/csiostor/csio_hw.h
index 49b1daa..5db2d85 100644
--- a/drivers/scsi/csiostor/csio_hw.h
+++ b/drivers/scsi/csiostor/csio_hw.h
@@ -94,7 +94,7 @@ enum {
 };
 
 struct csio_msix_entries {
-	unsigned short	vector;		/* Vector assigned by pci_enable_msix */
+	unsigned short	vector;		/* Assigned MSI-X vector */
 	void		*dev_id;	/* Priv object associated w/ this msix*/
 	char		desc[24];	/* Description of this vector */
 };
diff --git a/drivers/scsi/csiostor/csio_isr.c b/drivers/scsi/csiostor/csio_isr.c
index 91ba91d..a8c748a 100644
--- a/drivers/scsi/csiostor/csio_isr.c
+++ b/drivers/scsi/csiostor/csio_isr.c
@@ -499,7 +499,7 @@ csio_reduce_sqsets(struct csio_hw *hw, int cnt)
 static int
 csio_enable_msix(struct csio_hw *hw)
 {
-	int rv, i, j, k, n, min, cnt;
+	int i, j, k, n, min, cnt;
 	struct csio_msix_entries *entryp;
 	struct msix_entry *entries;
 	int extra = CSIO_EXTRA_VECS;
@@ -521,19 +521,15 @@ csio_enable_msix(struct csio_hw *hw)
 
 	csio_dbg(hw, "FW supp #niq:%d, trying %d msix's\n", hw->cfg_niq, cnt);
 
-	while ((rv = pci_enable_msix(hw->pdev, entries, cnt)) >= min)
-		cnt = rv;
-	if (!rv) {
-		if (cnt < (hw->num_sqsets + extra)) {
-			csio_dbg(hw, "Reducing sqsets to %d\n", cnt - extra);
-			csio_reduce_sqsets(hw, cnt - extra);
-		}
-	} else {
-		if (rv > 0)
-			csio_info(hw, "Not using MSI-X, remainder:%d\n", rv);
-
+	cnt = pci_enable_msix_range(hw->pdev, entries, min, cnt);
+	if (cnt < 0) {
 		kfree(entries);
-		return -ENOMEM;
+		return cnt;
+	}
+
+	if (cnt < (hw->num_sqsets + extra)) {
+		csio_dbg(hw, "Reducing sqsets to %d\n", cnt - extra);
+		csio_reduce_sqsets(hw, cnt - extra);
 	}
 
 	/* Save off vectors */
-- 
1.7.7.6

[PATCH v2 RESEND 07/23] fnic: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Alexander Gordeev]

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Hiral Patel <hiralpat@cisco.com>
Cc: Suma Ramars <sramars@cisco.com>
Cc: Brian Uchino <buchino@cisco.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
 drivers/scsi/fnic/fnic_isr.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/fnic/fnic_isr.c b/drivers/scsi/fnic/fnic_isr.c
index 7d9b54a..a0dd1b6 100644
--- a/drivers/scsi/fnic/fnic_isr.c
+++ b/drivers/scsi/fnic/fnic_isr.c
@@ -257,8 +257,8 @@ int fnic_set_intr_mode(struct fnic *fnic)
 	    fnic->raw_wq_count >= m &&
 	    fnic->wq_copy_count >= o &&
 	    fnic->cq_count >= n + m + o) {
-		if (!pci_enable_msix(fnic->pdev, fnic->msix_entry,
-				    n + m + o + 1)) {
+		if (!pci_enable_msix_exact(fnic->pdev, fnic->msix_entry,
+					   n + m + o + 1)) {
 			fnic->rq_count = n;
 			fnic->raw_wq_count = m;
 			fnic->wq_copy_count = o;
-- 
1.7.7.6

[PATCH v2 RESEND 08/23] isci: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Alexander Gordeev]

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Lukasz Dorau <lukasz.dorau@intel.com>
Cc: Maciej Patelczyk <maciej.patelczyk@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: intel-linux-scu@intel.com
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
 drivers/scsi/isci/init.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c
index 695b34e..4198e45 100644
--- a/drivers/scsi/isci/init.c
+++ b/drivers/scsi/isci/init.c
@@ -356,7 +356,7 @@ static int isci_setup_interrupts(struct pci_dev *pdev)
 	for (i = 0; i < num_msix; i++)
 		pci_info->msix_entries[i].entry = i;
 
-	err = pci_enable_msix(pdev, pci_info->msix_entries, num_msix);
+	err = pci_enable_msix_exact(pdev, pci_info->msix_entries, num_msix);
 	if (err)
 		goto intx;
 
-- 
1.7.7.6

Re: [PATCH v2 RESEND 08/23] isci: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Artur Paszkiewicz]

On 04/14/2014 10:05 AM, Alexander Gordeev wrote:
> As result of deprecation of MSI-X/MSI enablement functions
> pci_enable_msix() and pci_enable_msi_block() all drivers
> using these two interfaces need to be updated to use the
> new pci_enable_msi_range()  or pci_enable_msi_exact()
> and pci_enable_msix_range() or pci_enable_msix_exact()
> interfaces.
> 
> Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
> Cc: Lukasz Dorau <lukasz.dorau@intel.com>
> Cc: Maciej Patelczyk <maciej.patelczyk@intel.com>
> Cc: Dave Jiang <dave.jiang@intel.com>
> Cc: intel-linux-scu@intel.com
> Cc: linux-scsi@vger.kernel.org
> Cc: linux-pci@vger.kernel.org
> ---
>  drivers/scsi/isci/init.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c
> index 695b34e..4198e45 100644
> --- a/drivers/scsi/isci/init.c
> +++ b/drivers/scsi/isci/init.c
> @@ -356,7 +356,7 @@ static int isci_setup_interrupts(struct pci_dev *pdev)
>  	for (i = 0; i < num_msix; i++)
>  		pci_info->msix_entries[i].entry = i;
>  
> -	err = pci_enable_msix(pdev, pci_info->msix_entries, num_msix);
> +	err = pci_enable_msix_exact(pdev, pci_info->msix_entries, num_msix);
>  	if (err)
>  		goto intx;
>  
> 

Looks good.

Acked-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>

Thanks,
Artur

[PATCH v2 RESEND 09/23] hpsa: Fallback to MSI rather than to INTx if MSI-X failed

[Alexander Gordeev]

Currently the driver falls back to INTx mode when MSI-X
initialization failed. This is a suboptimal behaviour
for chips that also support MSI. This update changes that
behaviour and falls back to MSI mode in case MSI-X mode
initialization failed.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: "Stephen M. Cameron" <scameron@beardog.cce.hp.com>
Cc: iss_storagedev@hp.com
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
 drivers/scsi/hpsa.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 8cf4a0c..3284edb 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -6162,7 +6162,6 @@ static void hpsa_interrupt_mode(struct ctlr_info *h)
 			dev_warn(&h->pdev->dev, "MSI-X init failed %d\n",
 			       err);
 			h->msix_vector = 0;
-			goto default_int_mode;
 		}
 	}
 	if (pci_find_capability(h->pdev, PCI_CAP_ID_MSI)) {
-- 
1.7.7.6

[PATCH v2 RESEND 10/23] hpsa: Use pci_enable_msix_range() instead of pci_enable_msix()

[Alexander Gordeev]

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: "Stephen M. Cameron" <scameron@beardog.cce.hp.com>
Cc: iss_storagedev@hp.com
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
 drivers/scsi/hpsa.c |   29 +++++++++++++----------------
 1 files changed, 13 insertions(+), 16 deletions(-)

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 3284edb..36bb1e4 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -6144,26 +6144,23 @@ static void hpsa_interrupt_mode(struct ctlr_info *h)
 		goto default_int_mode;
 	if (pci_find_capability(h->pdev, PCI_CAP_ID_MSIX)) {
 		dev_info(&h->pdev->dev, "MSIX\n");
-		h->msix_vector = MAX_REPLY_QUEUES;
-		err = pci_enable_msix(h->pdev, hpsa_msix_entries,
-				      h->msix_vector);
-		if (err > 0) {
+		err = pci_enable_msix_range(h->pdev, hpsa_msix_entries,
+					    1, MAX_REPLY_QUEUES);
+		if (err < 0) {
+			dev_warn(&h->pdev->dev, "MSI-X init failed %d\n", err);
+			h->msix_vector = 0;
+			goto single_msi_mode;
+		} else if (err < MAX_REPLY_QUEUES) {
 			dev_warn(&h->pdev->dev, "only %d MSI-X vectors "
 			       "available\n", err);
-			h->msix_vector = err;
-			err = pci_enable_msix(h->pdev, hpsa_msix_entries,
-					      h->msix_vector);
-		}
-		if (!err) {
-			for (i = 0; i < h->msix_vector; i++)
-				h->intr[i] = hpsa_msix_entries[i].vector;
-			return;
-		} else {
-			dev_warn(&h->pdev->dev, "MSI-X init failed %d\n",
-			       err);
-			h->msix_vector = 0;
 		}
+
+		h->msix_vector = err;
+		for (i = 0; i < h->msix_vector; i++)
+			h->intr[i] = hpsa_msix_entries[i].vector;
+		return;
 	}
+single_msi_mode:
 	if (pci_find_capability(h->pdev, PCI_CAP_ID_MSI)) {
 		dev_info(&h->pdev->dev, "MSI\n");
 		if (!pci_enable_msi(h->pdev))
-- 
1.7.7.6

Re: [PATCH v2 RESEND 10/23] hpsa: Use pci_enable_msix_range() instead of pci_enable_msix()

[scameron]

On Mon, Apr 14, 2014 at 10:05:34AM +0200, Alexander Gordeev wrote:
> As result of deprecation of MSI-X/MSI enablement functions
> pci_enable_msix() and pci_enable_msi_block() all drivers
> using these two interfaces need to be updated to use the
> new pci_enable_msi_range()  or pci_enable_msi_exact()
> and pci_enable_msix_range() or pci_enable_msix_exact()
> interfaces.
> 
> Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
> Cc: "Stephen M. Cameron" <scameron@beardog.cce.hp.com>
> Cc: iss_storagedev@hp.com
> Cc: linux-scsi@vger.kernel.org
> Cc: linux-pci@vger.kernel.org
> ---
>  drivers/scsi/hpsa.c |   29 +++++++++++++----------------
>  1 files changed, 13 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
> index 3284edb..36bb1e4 100644
> --- a/drivers/scsi/hpsa.c
> +++ b/drivers/scsi/hpsa.c
> @@ -6144,26 +6144,23 @@ static void hpsa_interrupt_mode(struct ctlr_info *h)
>  		goto default_int_mode;
>  	if (pci_find_capability(h->pdev, PCI_CAP_ID_MSIX)) {
>  		dev_info(&h->pdev->dev, "MSIX\n");
> -		h->msix_vector = MAX_REPLY_QUEUES;
> -		err = pci_enable_msix(h->pdev, hpsa_msix_entries,
> -				      h->msix_vector);
> -		if (err > 0) {
> +		err = pci_enable_msix_range(h->pdev, hpsa_msix_entries,
> +					    1, MAX_REPLY_QUEUES);
> +		if (err < 0) {
> +			dev_warn(&h->pdev->dev, "MSI-X init failed %d\n", err);
> +			h->msix_vector = 0;
> +			goto single_msi_mode;
> +		} else if (err < MAX_REPLY_QUEUES) {
>  			dev_warn(&h->pdev->dev, "only %d MSI-X vectors "
>  			       "available\n", err);
> -			h->msix_vector = err;
> -			err = pci_enable_msix(h->pdev, hpsa_msix_entries,
> -					      h->msix_vector);
> -		}
> -		if (!err) {
> -			for (i = 0; i < h->msix_vector; i++)
> -				h->intr[i] = hpsa_msix_entries[i].vector;
> -			return;
> -		} else {
> -			dev_warn(&h->pdev->dev, "MSI-X init failed %d\n",
> -			       err);
> -			h->msix_vector = 0;
>  		}
> +
> +		h->msix_vector = err;
> +		for (i = 0; i < h->msix_vector; i++)
> +			h->intr[i] = hpsa_msix_entries[i].vector;
> +		return;
>  	}
> +single_msi_mode:
>  	if (pci_find_capability(h->pdev, PCI_CAP_ID_MSI)) {
>  		dev_info(&h->pdev->dev, "MSI\n");
>  		if (!pci_enable_msi(h->pdev))
> -- 
> 1.7.7.6

Ack.

-- steve

[PATCH v2 RESEND 11/23] lpfc: Remove superfluous call to pci_disable_msix()

[Alexander Gordeev]

There is no need to call pci_disable_msix() in case
the previous call to pci_enable_msix() failed

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: James Smart <james.smart@emulex.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Acked-by: James Smart <james.smart@emulex.com>
---
 drivers/scsi/lpfc/lpfc_init.c |    9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 635eeb3..7163f37 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -8131,7 +8131,7 @@ lpfc_sli_enable_msix(struct lpfc_hba *phba)
 	if (rc) {
 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 				"0420 PCI enable MSI-X failed (%d)\n", rc);
-		goto msi_fail_out;
+		goto vec_fail_out;
 	}
 	for (i = 0; i < LPFC_MSIX_VECTORS; i++)
 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
@@ -8209,6 +8209,8 @@ irq_fail_out:
 msi_fail_out:
 	/* Unconfigure MSI-X capability structure */
 	pci_disable_msix(phba->pcidev);
+
+vec_fail_out:
 	return rc;
 }
 
@@ -8701,7 +8703,7 @@ enable_msix_vectors:
 	} else if (rc) {
 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 				"0484 PCI enable MSI-X failed (%d)\n", rc);
-		goto msi_fail_out;
+		goto vec_fail_out;
 	}
 
 	/* Log MSI-X vector assignment */
@@ -8764,9 +8766,10 @@ cfg_fail_out:
 			 &phba->sli4_hba.fcp_eq_hdl[index]);
 	}
 
-msi_fail_out:
 	/* Unconfigure MSI-X capability structure */
 	pci_disable_msix(phba->pcidev);
+
+vec_fail_out:
 	return rc;
 }
 
-- 
1.7.7.6

[PATCH v2 RESEND 12/23] lpfc: Use pci_enable_msix_range() instead of pci_enable_msix()

[Alexander Gordeev]

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: James Smart <james.smart@emulex.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
 drivers/scsi/lpfc/lpfc_init.c |   38 +++++++++++++++++---------------------
 1 files changed, 17 insertions(+), 21 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 7163f37..b109adc 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -8100,9 +8100,9 @@ lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
  * @phba: pointer to lpfc hba data structure.
  *
  * This routine is invoked to enable the MSI-X interrupt vectors to device
- * with SLI-3 interface specs. The kernel function pci_enable_msix() is
- * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
- * invoked, enables either all or nothing, depending on the current
+ * with SLI-3 interface specs. The kernel function pci_enable_msix_exact()
+ * is called to enable the MSI-X vectors. Note that pci_enable_msix_exact(),
+ * once invoked, enables either all or nothing, depending on the current
  * availability of PCI vector resources. The device driver is responsible
  * for calling the individual request_irq() to register each MSI-X vector
  * with a interrupt handler, which is done in this function. Note that
@@ -8126,8 +8126,8 @@ lpfc_sli_enable_msix(struct lpfc_hba *phba)
 		phba->msix_entries[i].entry = i;
 
 	/* Configure MSI-X capability structure */
-	rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
-				ARRAY_SIZE(phba->msix_entries));
+	rc = pci_enable_msix_exact(phba->pcidev, phba->msix_entries,
+				   ARRAY_SIZE(phba->msix_entries));
 	if (rc) {
 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 				"0420 PCI enable MSI-X failed (%d)\n", rc);
@@ -8664,15 +8664,13 @@ out:
  * @phba: pointer to lpfc hba data structure.
  *
  * This routine is invoked to enable the MSI-X interrupt vectors to device
- * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
- * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
- * enables either all or nothing, depending on the current availability of
- * PCI vector resources. The device driver is responsible for calling the
- * individual request_irq() to register each MSI-X vector with a interrupt
- * handler, which is done in this function. Note that later when device is
- * unloading, the driver should always call free_irq() on all MSI-X vectors
- * it has done request_irq() on before calling pci_disable_msix(). Failure
- * to do so results in a BUG_ON() and a device will be left with MSI-X
+ * with SLI-4 interface spec. The kernel function pci_enable_msix_range()
+ * is called to enable the MSI-X vectors. The device driver is responsible
+ * for calling the individual request_irq() to register each MSI-X vector
+ * with a interrupt handler, which is done in this function. Note that later
+ * when device is unloading, the driver should always call free_irq() on all
+ * MSI-X vectors it has done request_irq() on before calling pci_disable_msix()
+ * Failure to do so results in a BUG_ON() and a device will be left with MSI-X
  * enabled and leaks its vectors.
  *
  * Return codes
@@ -8694,18 +8692,16 @@ lpfc_sli4_enable_msix(struct lpfc_hba *phba)
 		phba->sli4_hba.msix_entries[index].entry = index;
 		vectors++;
 	}
-enable_msix_vectors:
-	rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
-			     vectors);
-	if (rc > 1) {
-		vectors = rc;
-		goto enable_msix_vectors;
-	} else if (rc) {
+
+	rc = pci_enable_msix_range(phba->pcidev, phba->sli4_hba.msix_entries,
+				   2, vectors);
+	if (rc < 0) {
 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 				"0484 PCI enable MSI-X failed (%d)\n", rc);
 		goto vec_fail_out;
 	}
 
+	vectors = rc;
 	/* Log MSI-X vector assignment */
 	for (index = 0; index < vectors; index++)
 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-- 
1.7.7.6

[PATCH v2 RESEND 13/23] megaraid: Fail resume if MSI-X re-initialization failed

[Alexander Gordeev]

Currently the driver fails to analize MSI-X re-enablement
status on resuming and always assumes the success. This
update checks the MSI-X initialization result and fails
to resume if MSI-Xs re-enablement failed.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
---
 drivers/scsi/megaraid/megaraid_sas_base.c |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index d84d02c..2df717c 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -5135,9 +5135,10 @@ megasas_resume(struct pci_dev *pdev)
 		goto fail_ready_state;
 
 	/* Now re-enable MSI-X */
-	if (instance->msix_vectors)
-		pci_enable_msix(instance->pdev, instance->msixentry,
-				instance->msix_vectors);
+	if (instance->msix_vectors &&
+	    pci_enable_msix(instance->pdev, instance->msixentry,
+			    instance->msix_vectors))
+		goto fail_reenable_msix;
 
 	switch (instance->pdev->device) {
 	case PCI_DEVICE_ID_LSI_FUSION:
@@ -5246,6 +5247,7 @@ fail_init_mfi:
 
 fail_set_dma_mask:
 fail_ready_state:
+fail_reenable_msix:
 
 	pci_disable_device(pdev);
 
-- 
1.7.7.6

[PATCH v2 RESEND 14/23] megaraid: Use pci_enable_msix_range() instead of pci_enable_msix()

[Alexander Gordeev]

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Neela Syam Kolli <megaraidlinux@lsi.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
 drivers/scsi/megaraid/megaraid_sas_base.c |   20 +++++++-------------
 1 files changed, 7 insertions(+), 13 deletions(-)

diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 2df717c..26f89d4 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -4106,17 +4106,11 @@ static int megasas_init_fw(struct megasas_instance *instance)
 					     (unsigned int)num_online_cpus());
 		for (i = 0; i < instance->msix_vectors; i++)
 			instance->msixentry[i].entry = i;
-		i = pci_enable_msix(instance->pdev, instance->msixentry,
-				    instance->msix_vectors);
-		if (i >= 0) {
-			if (i) {
-				if (!pci_enable_msix(instance->pdev,
-						     instance->msixentry, i))
-					instance->msix_vectors = i;
-				else
-					instance->msix_vectors = 0;
-			}
-		} else
+		i = pci_enable_msix_range(instance->pdev, instance->msixentry,
+					  1, instance->msix_vectors);
+		if (i)
+			instance->msix_vectors = i;
+		else
 			instance->msix_vectors = 0;
 
 		dev_info(&instance->pdev->dev, "[scsi%d]: FW supports"
@@ -5136,8 +5130,8 @@ megasas_resume(struct pci_dev *pdev)
 
 	/* Now re-enable MSI-X */
 	if (instance->msix_vectors &&
-	    pci_enable_msix(instance->pdev, instance->msixentry,
-			    instance->msix_vectors))
+	    pci_enable_msix_exact(instance->pdev, instance->msixentry,
+				  instance->msix_vectors))
 		goto fail_reenable_msix;
 
 	switch (instance->pdev->device) {
-- 
1.7.7.6

[PATCH v2 RESEND 15/23] mpt2sas: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Alexander Gordeev]

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Nagalakshmi Nandigama <Nagalakshmi.Nandigama@lsi.com>
Cc: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Cc: support@lsi.com
Cc: DL-MPTFusionLinux@lsi.com
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
 drivers/scsi/mpt2sas/mpt2sas_base.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c
index bde63f7..984b605 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.c
@@ -1432,10 +1432,10 @@ _base_enable_msix(struct MPT2SAS_ADAPTER *ioc)
 	for (i = 0, a = entries; i < ioc->reply_queue_count; i++, a++)
 		a->entry = i;
 
-	r = pci_enable_msix(ioc->pdev, entries, ioc->reply_queue_count);
+	r = pci_enable_msix_exact(ioc->pdev, entries, ioc->reply_queue_count);
 	if (r) {
-		dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "pci_enable_msix "
-		    "failed (r=%d) !!!\n", ioc->name, r));
+		dfailprintk(ioc, printk(MPT2SAS_INFO_FMT
+		    "pci_enable_msix_exact failed (r=%d) !!!\n", ioc->name, r));
 		kfree(entries);
 		goto try_ioapic;
 	}
-- 
1.7.7.6

[PATCH v2 RESEND 16/23] mpt3sas: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Alexander Gordeev]

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Nagalakshmi Nandigama <Nagalakshmi.Nandigama@lsi.com>
Cc: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Cc: support@lsi.com
Cc: DL-MPTFusionLinux@lsi.com
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
 drivers/scsi/mpt3sas/mpt3sas_base.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 0cf4f70..7b65ec2 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -1747,10 +1747,10 @@ _base_enable_msix(struct MPT3SAS_ADAPTER *ioc)
 	for (i = 0, a = entries; i < ioc->reply_queue_count; i++, a++)
 		a->entry = i;
 
-	r = pci_enable_msix(ioc->pdev, entries, ioc->reply_queue_count);
+	r = pci_enable_msix_exact(ioc->pdev, entries, ioc->reply_queue_count);
 	if (r) {
 		dfailprintk(ioc, pr_info(MPT3SAS_FMT
-			"pci_enable_msix failed (r=%d) !!!\n",
+			"pci_enable_msix_exact failed (r=%d) !!!\n",
 			ioc->name, r));
 		kfree(entries);
 		goto try_ioapic;
-- 
1.7.7.6

[PATCH v2 RESEND 17/23] pm8001: Fix invalid return when request_irq() failed

[Alexander Gordeev]

When a call to request_irq() failed pm8001_setup_msix()
still returns the success. This udate fixes the described
misbehaviour.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: xjtuwjp@gmail.com
Cc: lindar_liu@usish.com
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Acked-by: Jack Wang <xjtuwjp@gmail.com>
---
 drivers/scsi/pm8001/pm8001_init.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index c4f31b21..df421f5 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -740,9 +740,10 @@ static u32 pm8001_setup_msix(struct pm8001_hba_info *pm8001_ha)
 			pm8001_ha->irq_vector[i].irq_id = i;
 			pm8001_ha->irq_vector[i].drv_inst = pm8001_ha;
 
-			if (request_irq(pm8001_ha->msix_entries[i].vector,
+			rc = request_irq(pm8001_ha->msix_entries[i].vector,
 				pm8001_interrupt_handler_msix, flag,
-				intr_drvname[i], &(pm8001_ha->irq_vector[i]))) {
+				intr_drvname[i], &(pm8001_ha->irq_vector[i]));
+			if (rc) {
 				for (j = 0; j < i; j++)
 					free_irq(
 					pm8001_ha->msix_entries[j].vector,
-- 
1.7.7.6

[PATCH v2 RESEND 18/23] pm8001: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Alexander Gordeev]

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: xjtuwjp@gmail.com
Cc: lindar_liu@usish.com
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
 drivers/scsi/pm8001/pm8001_init.c |   39 +++++++++++++++++++------------------
 1 files changed, 20 insertions(+), 19 deletions(-)

diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index df421f5..1d3c02d 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -725,34 +725,35 @@ static u32 pm8001_setup_msix(struct pm8001_hba_info *pm8001_ha)
 		sizeof(pm8001_ha->msix_entries[0]);
 	for (i = 0; i < max_entry ; i++)
 		pm8001_ha->msix_entries[i].entry = i;
-	rc = pci_enable_msix(pm8001_ha->pdev, pm8001_ha->msix_entries,
+	rc = pci_enable_msix_exact(pm8001_ha->pdev, pm8001_ha->msix_entries,
 		number_of_intr);
 	pm8001_ha->number_of_intr = number_of_intr;
-	if (!rc) {
-		PM8001_INIT_DBG(pm8001_ha, pm8001_printk(
-			"pci_enable_msix request ret:%d no of intr %d\n",
-					rc, pm8001_ha->number_of_intr));
+	if (rc)
+		return rc;
 
+	PM8001_INIT_DBG(pm8001_ha, pm8001_printk(
+		"pci_enable_msix_exact request ret:%d no of intr %d\n",
+				rc, pm8001_ha->number_of_intr));
 
-		for (i = 0; i < number_of_intr; i++) {
-			snprintf(intr_drvname[i], sizeof(intr_drvname[0]),
-					DRV_NAME"%d", i);
-			pm8001_ha->irq_vector[i].irq_id = i;
-			pm8001_ha->irq_vector[i].drv_inst = pm8001_ha;
+	for (i = 0; i < number_of_intr; i++) {
+		snprintf(intr_drvname[i], sizeof(intr_drvname[0]),
+				DRV_NAME"%d", i);
+		pm8001_ha->irq_vector[i].irq_id = i;
+		pm8001_ha->irq_vector[i].drv_inst = pm8001_ha;
 
-			rc = request_irq(pm8001_ha->msix_entries[i].vector,
-				pm8001_interrupt_handler_msix, flag,
-				intr_drvname[i], &(pm8001_ha->irq_vector[i]));
-			if (rc) {
-				for (j = 0; j < i; j++)
-					free_irq(
-					pm8001_ha->msix_entries[j].vector,
+		rc = request_irq(pm8001_ha->msix_entries[i].vector,
+			pm8001_interrupt_handler_msix, flag,
+			intr_drvname[i], &(pm8001_ha->irq_vector[i]));
+		if (rc) {
+			for (j = 0; j < i; j++) {
+				free_irq(pm8001_ha->msix_entries[j].vector,
 					&(pm8001_ha->irq_vector[i]));
-				pci_disable_msix(pm8001_ha->pdev);
-				break;
 			}
+			pci_disable_msix(pm8001_ha->pdev);
+			break;
 		}
 	}
+
 	return rc;
 }
 #endif
-- 
1.7.7.6

[PATCH v2 RESEND 19/23] pmcraid: Get rid of a redundant assignment

[Alexander Gordeev]

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Anil Ravindranath <anil_ravindranath@pmc-sierra.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
 drivers/scsi/pmcraid.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index be8ce54..c06af7f 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -4746,7 +4746,6 @@ pmcraid_isr_legacy:
 	pinstance->hrrq_vector[0].drv_inst = pinstance;
 	pinstance->hrrq_vector[0].vector = pdev->irq;
 	pinstance->num_hrrq = 1;
-	rc = 0;
 
 	rc = request_irq(pdev->irq, pmcraid_isr, IRQF_SHARED,
 			 PMCRAID_DRIVER_NAME, &pinstance->hrrq_vector[0]);
-- 
1.7.7.6

[PATCH v2 RESEND 20/23] pmcraid: Use pci_enable_msix_range() instead of pci_enable_msix()

[Alexander Gordeev]

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Anil Ravindranath <anil_ravindranath@pmc-sierra.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
 drivers/scsi/pmcraid.c |   13 ++-----------
 1 files changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index c06af7f..6d0f208 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -4698,19 +4698,10 @@ pmcraid_register_interrupt_handler(struct pmcraid_instance *pinstance)
 		for (i = 0; i < PMCRAID_NUM_MSIX_VECTORS; i++)
 			entries[i].entry = i;
 
-		rc = pci_enable_msix(pdev, entries, num_hrrq);
-		if (rc < 0)
+		num_hrrq = pci_enable_msix_range(pdev, entries, 1, num_hrrq);
+		if (num_hrrq < 0)
 			goto pmcraid_isr_legacy;
 
-		/* Check how many MSIX vectors are allocated and register
-		 * msi-x handlers for each of them giving appropriate buffer
-		 */
-		if (rc > 0) {
-			num_hrrq = rc;
-			if (pci_enable_msix(pdev, entries, num_hrrq))
-				goto pmcraid_isr_legacy;
-		}
-
 		for (i = 0; i < num_hrrq; i++) {
 			pinstance->hrrq_vector[i].hrrq_id = i;
 			pinstance->hrrq_vector[i].drv_inst = pinstance;
-- 
1.7.7.6

[PATCH v2 RESEND 21/23] qla2xxx: Use pci_enable_msix_range() instead of pci_enable_msix()

[Alexander Gordeev]

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Log message code 0x00c6 preserved, although it is reported
after successful call to pci_enable_msix_range(), not before
possibly unsuccessful call to pci_enable_msix(). Consumers
of the error code should not notice the difference.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: qla2xxx-upstream@qlogic.com
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
 drivers/scsi/qla2xxx/qla_isr.c |   27 +++++++++++----------------
 1 files changed, 11 insertions(+), 16 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 95314ef..41eb0dc 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -2918,27 +2918,22 @@ qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
 	for (i = 0; i < ha->msix_count; i++)
 		entries[i].entry = i;
 
-	ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
-	if (ret) {
-		if (ret < MIN_MSIX_COUNT)
-			goto msix_failed;
-
+	ret = pci_enable_msix_range(ha->pdev,
+				    entries, MIN_MSIX_COUNT, ha->msix_count);
+	if (ret < 0) {
+		ql_log(ql_log_fatal, vha, 0x00c7,
+		    "MSI-X: Failed to enable support, "
+		    "giving   up -- %d/%d.\n",
+		    ha->msix_count, ret);
+		goto msix_out;
+	} else if (ret < ha->msix_count) {
 		ql_log(ql_log_warn, vha, 0x00c6,
 		    "MSI-X: Failed to enable support "
 		    "-- %d/%d\n Retry with %d vectors.\n",
 		    ha->msix_count, ret, ret);
-		ha->msix_count = ret;
-		ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
-		if (ret) {
-msix_failed:
-			ql_log(ql_log_fatal, vha, 0x00c7,
-			    "MSI-X: Failed to enable support, "
-			    "giving   up -- %d/%d.\n",
-			    ha->msix_count, ret);
-			goto msix_out;
-		}
-		ha->max_rsp_queues = ha->msix_count - 1;
 	}
+	ha->msix_count = ret;
+	ha->max_rsp_queues = ha->msix_count - 1;
 	ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
 				ha->msix_count, GFP_KERNEL);
 	if (!ha->msix_entries) {
-- 
1.7.7.6

[PATCH v2 RESEND 22/23] qla4xxx: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Alexander Gordeev]

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Cc: iscsi-driver@qlogic.com
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
 drivers/scsi/qla4xxx/ql4_nx.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c
index 63328c8..a3e69e6 100644
--- a/drivers/scsi/qla4xxx/ql4_nx.c
+++ b/drivers/scsi/qla4xxx/ql4_nx.c
@@ -3787,7 +3787,7 @@ qla4_8xxx_enable_msix(struct scsi_qla_host *ha)
 	for (i = 0; i < QLA_MSIX_ENTRIES; i++)
 		entries[i].entry = qla4_8xxx_msix_entries[i].entry;
 
-	ret = pci_enable_msix(ha->pdev, entries, ARRAY_SIZE(entries));
+	ret = pci_enable_msix_exact(ha->pdev, entries, ARRAY_SIZE(entries));
 	if (ret) {
 		ql4_printk(KERN_WARNING, ha,
 		    "MSI-X: Failed to enable support -- %d/%d\n",
-- 
1.7.7.6

Re: [PATCH v2 RESEND 22/23] qla4xxx: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Vikas Chaudhary]

On 14/04/14 1:35 pm, "Alexander Gordeev" <agordeev@redhat.com> wrote:

>As result of deprecation of MSI-X/MSI enablement functions
>pci_enable_msix() and pci_enable_msi_block() all drivers
>using these two interfaces need to be updated to use the
>new pci_enable_msi_range()  or pci_enable_msi_exact()
>and pci_enable_msix_range() or pci_enable_msix_exact()
>interfaces.
>
>Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
>Cc: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
>Cc: iscsi-driver@qlogic.com
>Cc: linux-scsi@vger.kernel.org
>Cc: linux-pci@vger.kernel.org
>---
> drivers/scsi/qla4xxx/ql4_nx.c |    2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
>diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c
>index 63328c8..a3e69e6 100644
>--- a/drivers/scsi/qla4xxx/ql4_nx.c
>+++ b/drivers/scsi/qla4xxx/ql4_nx.c
>@@ -3787,7 +3787,7 @@ qla4_8xxx_enable_msix(struct scsi_qla_host *ha)
> 	for (i = 0; i < QLA_MSIX_ENTRIES; i++)
> 		entries[i].entry = qla4_8xxx_msix_entries[i].entry;
> 
>-	ret = pci_enable_msix(ha->pdev, entries, ARRAY_SIZE(entries));
>+	ret = pci_enable_msix_exact(ha->pdev, entries, ARRAY_SIZE(entries));
> 	if (ret) {
> 		ql4_printk(KERN_WARNING, ha,
> 		    "MSI-X: Failed to enable support -- %d/%d\n",
>-- 
>1.7.7.6

Acked-By: Vikas Chaudhary <vikas.chaudhary@qlogic.com>

Re: [PATCH v2 RESEND 22/23] qla4xxx: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Vikas Chaudhary]

[-- Attachment #1: Type: text/plain, Size: 1376 bytes --]



On 14/04/14 1:35 pm, "Alexander Gordeev" <agordeev@redhat.com> wrote:

>As result of deprecation of MSI-X/MSI enablement functions
>pci_enable_msix() and pci_enable_msi_block() all drivers
>using these two interfaces need to be updated to use the
>new pci_enable_msi_range()  or pci_enable_msi_exact()
>and pci_enable_msix_range() or pci_enable_msix_exact()
>interfaces.
>
>Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
>Cc: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
>Cc: iscsi-driver@qlogic.com
>Cc: linux-scsi@vger.kernel.org
>Cc: linux-pci@vger.kernel.org
>---
> drivers/scsi/qla4xxx/ql4_nx.c |    2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
>diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c
>index 63328c8..a3e69e6 100644
>--- a/drivers/scsi/qla4xxx/ql4_nx.c
>+++ b/drivers/scsi/qla4xxx/ql4_nx.c
>@@ -3787,7 +3787,7 @@ qla4_8xxx_enable_msix(struct scsi_qla_host *ha)
> 	for (i = 0; i < QLA_MSIX_ENTRIES; i++)
> 		entries[i].entry = qla4_8xxx_msix_entries[i].entry;
> 
>-	ret = pci_enable_msix(ha->pdev, entries, ARRAY_SIZE(entries));
>+	ret = pci_enable_msix_exact(ha->pdev, entries, ARRAY_SIZE(entries));
> 	if (ret) {
> 		ql4_printk(KERN_WARNING, ha,
> 		    "MSI-X: Failed to enable support -- %d/%d\n",
>-- 
>1.7.7.6

Acked-By: Vikas Chaudhary <vikas.chaudhary@qlogic.com>



[-- Attachment #2: winmail.dat --]
[-- Type: application/ms-tnef, Size: 4906 bytes --]

[PATCH v2 RESEND 23/23] vmw_pvscsi: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Alexander Gordeev]

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Arvind Kumar <arvindkumar@vmware.com>
Cc: pv-drivers@vmware.com
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Acked-by: Arvind Kumar <arvindkumar@vmware.com>
---
 drivers/scsi/vmw_pvscsi.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c
index c88e146..598f65e 100644
--- a/drivers/scsi/vmw_pvscsi.c
+++ b/drivers/scsi/vmw_pvscsi.c
@@ -1194,7 +1194,7 @@ static int pvscsi_setup_msix(const struct pvscsi_adapter *adapter,
 	struct msix_entry entry = { 0, PVSCSI_VECTOR_COMPLETION };
 	int ret;
 
-	ret = pci_enable_msix(adapter->dev, &entry, 1);
+	ret = pci_enable_msix_exact(adapter->dev, &entry, 1);
 	if (ret)
 		return ret;
 
-- 
1.7.7.6

Re: [PATCH v2 RESEND 00/23] scsi: Use pci_enable_msix_range() instead of pci_enable_msix()

[Bjorn Helgaas]

On Mon, Apr 14, 2014 at 10:05:24AM +0200, Alexander Gordeev wrote:
> Hello,
> 
> This series is against 3.15-rc1.
> 
> As result of deprecation of MSI-X/MSI enablement functions
> pci_enable_msix() and pci_enable_msi_block() all drivers
> using these two interfaces need to be updated to use the
> new pci_enable_msi_range()  or pci_enable_msi_exact()
> and pci_enable_msix_range() or pci_enable_msix_exact()
> interfaces.

Hi James,

These depend on f7fc32c, which appeared in v3.15-rc1.  I had intended
to merge these scsi updates at the same time, but I failed.  Would you
like to take them now that f7fc32c is upstream?

If not, I'd still be glad to do it, but it might avoid some conflicts
if you took them.

Bjorn

> There are no major changes in this series since I posted
> it last time.
> 
> Thanks!
> 
> Cc: iss_storagedev@hp.com
> Cc: intel-linux-scu@intel.com
> Cc: support@lsi.com
> Cc: DL-MPTFusionLinux@lsi.com
> Cc: qla2xxx-upstream@qlogic.com
> Cc: iscsi-driver@qlogic.com
> Cc: pv-drivers@vmware.com
> Cc: linux-scsi@vger.kernel.org
> Cc: linux-pci@vger.kernel.org
> 
> 
> Alexander Gordeev (23):
>   be2iscsi: Use pci_enable_msix_exact() instead of pci_enable_msix()
>   bfa: Do not call pci_enable_msix() after it failed once
>   bfa: Cleanup bfad_setup_intr() function
>   bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()
>   csiostor: Remove superfluous call to pci_disable_msix()
>   csiostor: Use pci_enable_msix_range() instead of pci_enable_msix()
>   fnic: Use pci_enable_msix_exact() instead of pci_enable_msix()
>   isci: Use pci_enable_msix_exact() instead of pci_enable_msix()
>   hpsa: Fallback to MSI rather than to INTx if MSI-X failed
>   hpsa: Use pci_enable_msix_range() instead of pci_enable_msix()
>   lpfc: Remove superfluous call to pci_disable_msix()
>   lpfc: Use pci_enable_msix_range() instead of pci_enable_msix()
>   megaraid: Fail resume if MSI-X re-initialization failed
>   megaraid: Use pci_enable_msix_range() instead of pci_enable_msix()
>   mpt2sas: Use pci_enable_msix_exact() instead of pci_enable_msix()
>   mpt3sas: Use pci_enable_msix_exact() instead of pci_enable_msix()
>   pm8001: Fix invalid return when request_irq() failed
>   pm8001: Use pci_enable_msix_exact() instead of pci_enable_msix()
>   pmcraid: Get rid of a redundant assignment
>   pmcraid: Use pci_enable_msix_range() instead of pci_enable_msix()
>   qla2xxx: Use pci_enable_msix_range() instead of pci_enable_msix()
>   qla4xxx: Use pci_enable_msix_exact() instead of pci_enable_msix()
>   vmw_pvscsi: Use pci_enable_msix_exact() instead of pci_enable_msix()
> 
>  drivers/scsi/be2iscsi/be_main.c           |    6 +--
>  drivers/scsi/bfa/bfad.c                   |   62 ++++++++++++-----------------
>  drivers/scsi/csiostor/csio_hw.h           |    2 +-
>  drivers/scsi/csiostor/csio_isr.c          |   24 ++++-------
>  drivers/scsi/fnic/fnic_isr.c              |    4 +-
>  drivers/scsi/hpsa.c                       |   30 ++++++--------
>  drivers/scsi/isci/init.c                  |    2 +-
>  drivers/scsi/lpfc/lpfc_init.c             |   47 +++++++++++-----------
>  drivers/scsi/megaraid/megaraid_sas_base.c |   24 +++++------
>  drivers/scsi/mpt2sas/mpt2sas_base.c       |    6 +-
>  drivers/scsi/mpt3sas/mpt3sas_base.c       |    4 +-
>  drivers/scsi/pm8001/pm8001_init.c         |   44 +++++++++++----------
>  drivers/scsi/pmcraid.c                    |   14 +------
>  drivers/scsi/qla2xxx/qla_isr.c            |   27 +++++-------
>  drivers/scsi/qla4xxx/ql4_nx.c             |    2 +-
>  drivers/scsi/vmw_pvscsi.c                 |    2 +-
>  16 files changed, 129 insertions(+), 171 deletions(-)
> 
> -- 
> 1.7.7.6
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/

Re: [PATCH v2 RESEND 00/23] scsi: Use pci_enable_msix_range() instead of pci_enable_msix()

[James Bottomley]

On Thu, 2014-04-24 at 11:09 -0600, Bjorn Helgaas wrote:
> On Mon, Apr 14, 2014 at 10:05:24AM +0200, Alexander Gordeev wrote:
> > Hello,
> > 
> > This series is against 3.15-rc1.
> > 
> > As result of deprecation of MSI-X/MSI enablement functions
> > pci_enable_msix() and pci_enable_msi_block() all drivers
> > using these two interfaces need to be updated to use the
> > new pci_enable_msi_range()  or pci_enable_msi_exact()
> > and pci_enable_msix_range() or pci_enable_msix_exact()
> > interfaces.
> 
> Hi James,
> 
> These depend on f7fc32c, which appeared in v3.15-rc1.  I had intended
> to merge these scsi updates at the same time, but I failed.  Would you
> like to take them now that f7fc32c is upstream?

OK, will add them.  I'm planning to base the scsi-misc tree on -rc3 once
we have our current crop of fixes upstream.

James

Re: [PATCH v2 RESEND 00/23] scsi: Use pci_enable_msix_range() instead of pci_enable_msix()

[Bjorn Helgaas]

On Thu, Apr 24, 2014 at 11:51 AM, James Bottomley
<jbottomley@parallels.com> wrote:
> On Thu, 2014-04-24 at 11:09 -0600, Bjorn Helgaas wrote:
>> On Mon, Apr 14, 2014 at 10:05:24AM +0200, Alexander Gordeev wrote:
>> > Hello,
>> >
>> > This series is against 3.15-rc1.
>> >
>> > As result of deprecation of MSI-X/MSI enablement functions
>> > pci_enable_msix() and pci_enable_msi_block() all drivers
>> > using these two interfaces need to be updated to use the
>> > new pci_enable_msi_range()  or pci_enable_msi_exact()
>> > and pci_enable_msix_range() or pci_enable_msix_exact()
>> > interfaces.
>>
>> Hi James,
>>
>> These depend on f7fc32c, which appeared in v3.15-rc1.  I had intended
>> to merge these scsi updates at the same time, but I failed.  Would you
>> like to take them now that f7fc32c is upstream?
>
> OK, will add them.  I'm planning to base the scsi-misc tree on -rc3 once
> we have our current crop of fixes upstream.

Great, thanks!

Bjorn

Re: [PATCH v2 RESEND 00/23] scsi: Use pci_enable_msix_range() instead of pci_enable_msix()

[Alexander Gordeev]

On Thu, Apr 24, 2014 at 12:07:12PM -0600, Bjorn Helgaas wrote:
> >> These depend on f7fc32c, which appeared in v3.15-rc1.  I had intended
> >> to merge these scsi updates at the same time, but I failed.  Would you
> >> like to take them now that f7fc32c is upstream?
> >
> > OK, will add them.  I'm planning to base the scsi-misc tree on -rc3 once
> > we have our current crop of fixes upstream.
> 
> Great, thanks!

James, Bjorn,

All patches except 'be2iscsi' (patch 1) and 'hpsa' (patches 9,10) still
apply. Would you take those apply or have me resend all of them or just
'be2iscsi' and 'hpsa'?

Thanks!

> Bjorn

-- 
Regards,
Alexander Gordeev
agordeev@redhat.com

Re: [PATCH v2 RESEND 00/23] scsi: Use pci_enable_msix_range() instead of pci_enable_msix()

[Alexander Gordeev]

On Thu, Apr 24, 2014 at 05:51:09PM +0000, James Bottomley wrote:
> > These depend on f7fc32c, which appeared in v3.15-rc1.  I had intended
> > to merge these scsi updates at the same time, but I failed.  Would you
> > like to take them now that f7fc32c is upstream?
> 
> OK, will add them.  I'm planning to base the scsi-misc tree on -rc3 once
> we have our current crop of fixes upstream.

Hi James,

If I need to repost the series to get it into you tree?

Thanks!

> James
> 

-- 
Regards,
Alexander Gordeev
agordeev@redhat.com

[PATCH v2 RESEND 00/23] scsi: Use pci_enable_msix_range() instead of pci_enable_msix()

[Alexander Gordeev]

Hello,

This is a series of mostly trivial patches. Once accepted,
we could phase out pci_enable_msix() interface.

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Thanks!

Cc: iss_storagedev@hp.com
Cc: intel-linux-scu@intel.com
Cc: support@lsi.com
Cc: DL-MPTFusionLinux@lsi.com
Cc: qla2xxx-upstream@qlogic.com
Cc: iscsi-driver@qlogic.com
Cc: pv-drivers@vmware.com
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org

Alexander Gordeev (23):
  be2iscsi: Use pci_enable_msix_exact() instead of pci_enable_msix()
  bfa: Do not call pci_enable_msix() after it failed once
  bfa: Cleanup bfad_setup_intr() function
  bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()
  csiostor: Remove superfluous call to pci_disable_msix()
  csiostor: Use pci_enable_msix_range() instead of pci_enable_msix()
  fnic: Use pci_enable_msix_exact() instead of pci_enable_msix()
  hpsa: Fallback to MSI rather than to INTx if MSI-X failed
  hpsa: Use pci_enable_msix_range() instead of pci_enable_msix()
  isci: Use pci_enable_msix_exact() instead of pci_enable_msix()
  lpfc: Remove superfluous call to pci_disable_msix()
  lpfc: Use pci_enable_msix_range() instead of pci_enable_msix()
  megaraid: Fail resume if MSI-X re-initialization failed
  megaraid: Use pci_enable_msix_range() instead of pci_enable_msix()
  mpt2sas: Use pci_enable_msix_exact() instead of pci_enable_msix()
  mpt3sas: Use pci_enable_msix_exact() instead of pci_enable_msix()
  pm8001: Fix invalid return when request_irq() failed
  pm8001: Use pci_enable_msix_exact() instead of pci_enable_msix()
  pmcraid: Get rid of a redundant assignment
  pmcraid: Use pci_enable_msix_range() instead of pci_enable_msix()
  qla2xxx: Use pci_enable_msix_range() instead of pci_enable_msix()
  qla4xxx: Use pci_enable_msix_exact() instead of pci_enable_msix()
  vmw_pvscsi: Use pci_enable_msix_exact() instead of pci_enable_msix()

 drivers/scsi/be2iscsi/be_main.c           |    6 +--
 drivers/scsi/bfa/bfad.c                   |   62 ++++++++++++-----------------
 drivers/scsi/csiostor/csio_hw.h           |    2 +-
 drivers/scsi/csiostor/csio_isr.c          |   24 ++++-------
 drivers/scsi/fnic/fnic_isr.c              |    4 +-
 drivers/scsi/hpsa.c                       |   28 ++++++-------
 drivers/scsi/isci/init.c                  |    2 +-
 drivers/scsi/lpfc/lpfc_init.c             |   47 +++++++++++-----------
 drivers/scsi/megaraid/megaraid_sas_base.c |   24 +++++------
 drivers/scsi/mpt2sas/mpt2sas_base.c       |    6 +-
 drivers/scsi/mpt3sas/mpt3sas_base.c       |    4 +-
 drivers/scsi/pm8001/pm8001_init.c         |   44 +++++++++++----------
 drivers/scsi/pmcraid.c                    |   14 +------
 drivers/scsi/qla2xxx/qla_isr.c            |   27 +++++-------
 drivers/scsi/qla4xxx/ql4_nx.c             |    2 +-
 drivers/scsi/vmw_pvscsi.c                 |    2 +-
 16 files changed, 128 insertions(+), 170 deletions(-)

-- 
1.7.7.6

[PATCH v2 RESEND 04/23] bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Alexander Gordeev]

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Anil Gurumurthy <agurumur@brocade.com>
Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
---
 drivers/scsi/bfa/bfad.c |   20 ++++++--------------
 1 files changed, 6 insertions(+), 14 deletions(-)

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index c18279f..e90a374 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1234,29 +1234,21 @@ bfad_setup_intr(struct bfad_s *bfad)
 	if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
 	   (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
 
-		error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
+		error = pci_enable_msix_exact(bfad->pcidev,
+					      msix_entries, bfad->nvec);
 		/* In CT1 & CT2, try to allocate just one vector */
-		if (error > 0 && bfa_asic_id_ctc(pdev->device)) {
+		if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) {
 			printk(KERN_WARNING "bfa %s: trying one msix "
 			       "vector failed to allocate %d[%d]\n",
 			       bfad->pci_name, bfad->nvec, error);
 			bfad->nvec = 1;
-			error = pci_enable_msix(bfad->pcidev,
-						msix_entries, bfad->nvec);
+			error = pci_enable_msix_exact(bfad->pcidev,
+						      msix_entries, 1);
 		}
 
-		/*
-		 * Only error number of vector is available.
-		 * We don't have a mechanism to map multiple
-		 * interrupts into one vector, so even if we
-		 * can try to request less vectors, we don't
-		 * know how to associate interrupt events to
-		 *  vectors. Linux doesn't duplicate vectors
-		 * in the MSIX table for this case.
-		 */
 		if (error) {
 			printk(KERN_WARNING "bfad%d: "
-			       "pci_enable_msix failed (%d), "
+			       "pci_enable_msix_exact failed (%d), "
 			       "use line based.\n",
 				bfad->inst_no, error);
 			goto line_based;
-- 
1.7.7.6

Re: [PATCH v2 RESEND 04/23] bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Alexander Gordeev]

On Wed, Jul 16, 2014 at 08:05:08PM +0200, Alexander Gordeev wrote:
> As result of deprecation of MSI-X/MSI enablement functions
> pci_enable_msix() and pci_enable_msi_block() all drivers
> using these two interfaces need to be updated to use the
> new pci_enable_msi_range()  or pci_enable_msi_exact()
> and pci_enable_msix_range() or pci_enable_msix_exact()
> interfaces.

Anil, Sudarsana,

Could you please review bfa patches in this series?

Thanks!

> Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
> Cc: Anil Gurumurthy <agurumur@brocade.com>
> Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
> Cc: linux-scsi@vger.kernel.org
> Cc: linux-pci@vger.kernel.org
> Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
> ---
>  drivers/scsi/bfa/bfad.c |   20 ++++++--------------
>  1 files changed, 6 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
> index c18279f..e90a374 100644
> --- a/drivers/scsi/bfa/bfad.c
> +++ b/drivers/scsi/bfa/bfad.c
> @@ -1234,29 +1234,21 @@ bfad_setup_intr(struct bfad_s *bfad)
>  	if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
>  	   (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
>  
> -		error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
> +		error = pci_enable_msix_exact(bfad->pcidev,
> +					      msix_entries, bfad->nvec);
>  		/* In CT1 & CT2, try to allocate just one vector */
> -		if (error > 0 && bfa_asic_id_ctc(pdev->device)) {
> +		if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) {
>  			printk(KERN_WARNING "bfa %s: trying one msix "
>  			       "vector failed to allocate %d[%d]\n",
>  			       bfad->pci_name, bfad->nvec, error);
>  			bfad->nvec = 1;
> -			error = pci_enable_msix(bfad->pcidev,
> -						msix_entries, bfad->nvec);
> +			error = pci_enable_msix_exact(bfad->pcidev,
> +						      msix_entries, 1);
>  		}
>  
> -		/*
> -		 * Only error number of vector is available.
> -		 * We don't have a mechanism to map multiple
> -		 * interrupts into one vector, so even if we
> -		 * can try to request less vectors, we don't
> -		 * know how to associate interrupt events to
> -		 *  vectors. Linux doesn't duplicate vectors
> -		 * in the MSIX table for this case.
> -		 */
>  		if (error) {
>  			printk(KERN_WARNING "bfad%d: "
> -			       "pci_enable_msix failed (%d), "
> +			       "pci_enable_msix_exact failed (%d), "
>  			       "use line based.\n",
>  				bfad->inst_no, error);
>  			goto line_based;
> -- 
> 1.7.7.6
> 

RE: [PATCH v2 RESEND 04/23] bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Anil Gurumurthy]

Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>


-----Original Message-----
From: Alexander Gordeev [mailto:agordeev@redhat.com] 
Sent: 11 August 2014 13:09
To: linux-kernel
Cc: Anil Gurumurthy; Vijaya Mohan Guvva; linux-scsi; linux-pci; Anil Gurumurthy; Sudarsana Kalluru
Subject: Re: [PATCH v2 RESEND 04/23] bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()

On Wed, Jul 16, 2014 at 08:05:08PM +0200, Alexander Gordeev wrote:
> As result of deprecation of MSI-X/MSI enablement functions
> pci_enable_msix() and pci_enable_msi_block() all drivers using these 
> two interfaces need to be updated to use the new 
> pci_enable_msi_range()  or pci_enable_msi_exact() and 
> pci_enable_msix_range() or pci_enable_msix_exact() interfaces.

Anil, Sudarsana,

Could you please review bfa patches in this series?

Thanks!

> Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
> Cc: Anil Gurumurthy <agurumur@brocade.com>
> Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
> Cc: linux-scsi@vger.kernel.org
> Cc: linux-pci@vger.kernel.org
> Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
> ---
>  drivers/scsi/bfa/bfad.c |   20 ++++++--------------
>  1 files changed, 6 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c index 
> c18279f..e90a374 100644
> --- a/drivers/scsi/bfa/bfad.c
> +++ b/drivers/scsi/bfa/bfad.c
> @@ -1234,29 +1234,21 @@ bfad_setup_intr(struct bfad_s *bfad)
>  	if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
>  	   (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
>  
> -		error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
> +		error = pci_enable_msix_exact(bfad->pcidev,
> +					      msix_entries, bfad->nvec);
>  		/* In CT1 & CT2, try to allocate just one vector */
> -		if (error > 0 && bfa_asic_id_ctc(pdev->device)) {
> +		if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) {
>  			printk(KERN_WARNING "bfa %s: trying one msix "
>  			       "vector failed to allocate %d[%d]\n",
>  			       bfad->pci_name, bfad->nvec, error);
>  			bfad->nvec = 1;
> -			error = pci_enable_msix(bfad->pcidev,
> -						msix_entries, bfad->nvec);
> +			error = pci_enable_msix_exact(bfad->pcidev,
> +						      msix_entries, 1);
>  		}
>  
> -		/*
> -		 * Only error number of vector is available.
> -		 * We don't have a mechanism to map multiple
> -		 * interrupts into one vector, so even if we
> -		 * can try to request less vectors, we don't
> -		 * know how to associate interrupt events to
> -		 *  vectors. Linux doesn't duplicate vectors
> -		 * in the MSIX table for this case.
> -		 */
>  		if (error) {
>  			printk(KERN_WARNING "bfad%d: "
> -			       "pci_enable_msix failed (%d), "
> +			       "pci_enable_msix_exact failed (%d), "
>  			       "use line based.\n",
>  				bfad->inst_no, error);
>  			goto line_based;
> --
> 1.7.7.6
> 

RE: [PATCH v2 RESEND 04/23] bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Anil Gurumurthy]

[-- Attachment #1: Type: text/plain, Size: 2949 bytes --]

Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>


-----Original Message-----
From: Alexander Gordeev [mailto:agordeev@redhat.com] 
Sent: 11 August 2014 13:09
To: linux-kernel
Cc: Anil Gurumurthy; Vijaya Mohan Guvva; linux-scsi; linux-pci; Anil Gurumurthy; Sudarsana Kalluru
Subject: Re: [PATCH v2 RESEND 04/23] bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()

On Wed, Jul 16, 2014 at 08:05:08PM +0200, Alexander Gordeev wrote:
> As result of deprecation of MSI-X/MSI enablement functions
> pci_enable_msix() and pci_enable_msi_block() all drivers using these 
> two interfaces need to be updated to use the new 
> pci_enable_msi_range()  or pci_enable_msi_exact() and 
> pci_enable_msix_range() or pci_enable_msix_exact() interfaces.

Anil, Sudarsana,

Could you please review bfa patches in this series?

Thanks!

> Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
> Cc: Anil Gurumurthy <agurumur@brocade.com>
> Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
> Cc: linux-scsi@vger.kernel.org
> Cc: linux-pci@vger.kernel.org
> Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
> ---
>  drivers/scsi/bfa/bfad.c |   20 ++++++--------------
>  1 files changed, 6 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c index 
> c18279f..e90a374 100644
> --- a/drivers/scsi/bfa/bfad.c
> +++ b/drivers/scsi/bfa/bfad.c
> @@ -1234,29 +1234,21 @@ bfad_setup_intr(struct bfad_s *bfad)
>  	if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
>  	   (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
>  
> -		error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
> +		error = pci_enable_msix_exact(bfad->pcidev,
> +					      msix_entries, bfad->nvec);
>  		/* In CT1 & CT2, try to allocate just one vector */
> -		if (error > 0 && bfa_asic_id_ctc(pdev->device)) {
> +		if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) {
>  			printk(KERN_WARNING "bfa %s: trying one msix "
>  			       "vector failed to allocate %d[%d]\n",
>  			       bfad->pci_name, bfad->nvec, error);
>  			bfad->nvec = 1;
> -			error = pci_enable_msix(bfad->pcidev,
> -						msix_entries, bfad->nvec);
> +			error = pci_enable_msix_exact(bfad->pcidev,
> +						      msix_entries, 1);
>  		}
>  
> -		/*
> -		 * Only error number of vector is available.
> -		 * We don't have a mechanism to map multiple
> -		 * interrupts into one vector, so even if we
> -		 * can try to request less vectors, we don't
> -		 * know how to associate interrupt events to
> -		 *  vectors. Linux doesn't duplicate vectors
> -		 * in the MSIX table for this case.
> -		 */
>  		if (error) {
>  			printk(KERN_WARNING "bfad%d: "
> -			       "pci_enable_msix failed (%d), "
> +			       "pci_enable_msix_exact failed (%d), "
>  			       "use line based.\n",
>  				bfad->inst_no, error);
>  			goto line_based;
> --
> 1.7.7.6
> 

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Re: [PATCH v2 RESEND 04/23] bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Alexander Gordeev]

On Mon, Aug 11, 2014 at 11:02:56AM +0000, Anil Gurumurthy wrote:
> Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>

Many thanks, Anil!

If your Ack apply to this patch only or to all three
'bfa' patches in this series?

Thanks!

> -----Original Message-----
> From: Alexander Gordeev [mailto:agordeev@redhat.com] 
> Sent: 11 August 2014 13:09
> To: linux-kernel
> Cc: Anil Gurumurthy; Vijaya Mohan Guvva; linux-scsi; linux-pci; Anil Gurumurthy; Sudarsana Kalluru
> Subject: Re: [PATCH v2 RESEND 04/23] bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()
> 
> On Wed, Jul 16, 2014 at 08:05:08PM +0200, Alexander Gordeev wrote:
> > As result of deprecation of MSI-X/MSI enablement functions
> > pci_enable_msix() and pci_enable_msi_block() all drivers using these 
> > two interfaces need to be updated to use the new 
> > pci_enable_msi_range()  or pci_enable_msi_exact() and 
> > pci_enable_msix_range() or pci_enable_msix_exact() interfaces.
> 
> Anil, Sudarsana,
> 
> Could you please review bfa patches in this series?
> 
> Thanks!
> 
> > Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
> > Cc: Anil Gurumurthy <agurumur@brocade.com>
> > Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
> > Cc: linux-scsi@vger.kernel.org
> > Cc: linux-pci@vger.kernel.org
> > Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
> > ---
> >  drivers/scsi/bfa/bfad.c |   20 ++++++--------------
> >  1 files changed, 6 insertions(+), 14 deletions(-)
> > 
> > diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c index 
> > c18279f..e90a374 100644
> > --- a/drivers/scsi/bfa/bfad.c
> > +++ b/drivers/scsi/bfa/bfad.c
> > @@ -1234,29 +1234,21 @@ bfad_setup_intr(struct bfad_s *bfad)
> >  	if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
> >  	   (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
> >  
> > -		error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
> > +		error = pci_enable_msix_exact(bfad->pcidev,
> > +					      msix_entries, bfad->nvec);
> >  		/* In CT1 & CT2, try to allocate just one vector */
> > -		if (error > 0 && bfa_asic_id_ctc(pdev->device)) {
> > +		if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) {
> >  			printk(KERN_WARNING "bfa %s: trying one msix "
> >  			       "vector failed to allocate %d[%d]\n",
> >  			       bfad->pci_name, bfad->nvec, error);
> >  			bfad->nvec = 1;
> > -			error = pci_enable_msix(bfad->pcidev,
> > -						msix_entries, bfad->nvec);
> > +			error = pci_enable_msix_exact(bfad->pcidev,
> > +						      msix_entries, 1);
> >  		}
> >  
> > -		/*
> > -		 * Only error number of vector is available.
> > -		 * We don't have a mechanism to map multiple
> > -		 * interrupts into one vector, so even if we
> > -		 * can try to request less vectors, we don't
> > -		 * know how to associate interrupt events to
> > -		 *  vectors. Linux doesn't duplicate vectors
> > -		 * in the MSIX table for this case.
> > -		 */
> >  		if (error) {
> >  			printk(KERN_WARNING "bfad%d: "
> > -			       "pci_enable_msix failed (%d), "
> > +			       "pci_enable_msix_exact failed (%d), "
> >  			       "use line based.\n",
> >  				bfad->inst_no, error);
> >  			goto line_based;
> > --
> > 1.7.7.6
> > 

-- 
Regards,
Alexander Gordeev
agordeev@redhat.com

RE: [PATCH v2 RESEND 04/23] bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Anil Gurumurthy]

Hi Alexander,
  I believe I acked the series already, if not, I am acking all the bfa patches in this series.

Thanks,
Anil

-----Original Message-----
From: Alexander Gordeev [mailto:agordeev@redhat.com] 
Sent: 12 August 2014 16:20
To: Anil Gurumurthy
Cc: linux-kernel; Anil Gurumurthy; Vijaya Mohan Guvva; linux-scsi; linux-pci; Sudarsana Kalluru
Subject: Re: [PATCH v2 RESEND 04/23] bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()

On Mon, Aug 11, 2014 at 11:02:56AM +0000, Anil Gurumurthy wrote:
> Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>

Many thanks, Anil!

If your Ack apply to this patch only or to all three 'bfa' patches in this series?

Thanks!

> -----Original Message-----
> From: Alexander Gordeev [mailto:agordeev@redhat.com]
> Sent: 11 August 2014 13:09
> To: linux-kernel
> Cc: Anil Gurumurthy; Vijaya Mohan Guvva; linux-scsi; linux-pci; Anil 
> Gurumurthy; Sudarsana Kalluru
> Subject: Re: [PATCH v2 RESEND 04/23] bfa: Use pci_enable_msix_exact() 
> instead of pci_enable_msix()
> 
> On Wed, Jul 16, 2014 at 08:05:08PM +0200, Alexander Gordeev wrote:
> > As result of deprecation of MSI-X/MSI enablement functions
> > pci_enable_msix() and pci_enable_msi_block() all drivers using these 
> > two interfaces need to be updated to use the new
> > pci_enable_msi_range()  or pci_enable_msi_exact() and
> > pci_enable_msix_range() or pci_enable_msix_exact() interfaces.
> 
> Anil, Sudarsana,
> 
> Could you please review bfa patches in this series?
> 
> Thanks!
> 
> > Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
> > Cc: Anil Gurumurthy <agurumur@brocade.com>
> > Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
> > Cc: linux-scsi@vger.kernel.org
> > Cc: linux-pci@vger.kernel.org
> > Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
> > ---
> >  drivers/scsi/bfa/bfad.c |   20 ++++++--------------
> >  1 files changed, 6 insertions(+), 14 deletions(-)
> > 
> > diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c index
> > c18279f..e90a374 100644
> > --- a/drivers/scsi/bfa/bfad.c
> > +++ b/drivers/scsi/bfa/bfad.c
> > @@ -1234,29 +1234,21 @@ bfad_setup_intr(struct bfad_s *bfad)
> >  	if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
> >  	   (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
> >  
> > -		error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
> > +		error = pci_enable_msix_exact(bfad->pcidev,
> > +					      msix_entries, bfad->nvec);
> >  		/* In CT1 & CT2, try to allocate just one vector */
> > -		if (error > 0 && bfa_asic_id_ctc(pdev->device)) {
> > +		if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) {
> >  			printk(KERN_WARNING "bfa %s: trying one msix "
> >  			       "vector failed to allocate %d[%d]\n",
> >  			       bfad->pci_name, bfad->nvec, error);
> >  			bfad->nvec = 1;
> > -			error = pci_enable_msix(bfad->pcidev,
> > -						msix_entries, bfad->nvec);
> > +			error = pci_enable_msix_exact(bfad->pcidev,
> > +						      msix_entries, 1);
> >  		}
> >  
> > -		/*
> > -		 * Only error number of vector is available.
> > -		 * We don't have a mechanism to map multiple
> > -		 * interrupts into one vector, so even if we
> > -		 * can try to request less vectors, we don't
> > -		 * know how to associate interrupt events to
> > -		 *  vectors. Linux doesn't duplicate vectors
> > -		 * in the MSIX table for this case.
> > -		 */
> >  		if (error) {
> >  			printk(KERN_WARNING "bfad%d: "
> > -			       "pci_enable_msix failed (%d), "
> > +			       "pci_enable_msix_exact failed (%d), "
> >  			       "use line based.\n",
> >  				bfad->inst_no, error);
> >  			goto line_based;
> > --
> > 1.7.7.6
> > 

--
Regards,
Alexander Gordeev
agordeev@redhat.com

RE: [PATCH v2 RESEND 04/23] bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()

[Anil Gurumurthy]

[-- Attachment #1: Type: text/plain, Size: 3802 bytes --]

Hi Alexander,
  I believe I acked the series already, if not, I am acking all the bfa patches in this series.

Thanks,
Anil

-----Original Message-----
From: Alexander Gordeev [mailto:agordeev@redhat.com] 
Sent: 12 August 2014 16:20
To: Anil Gurumurthy
Cc: linux-kernel; Anil Gurumurthy; Vijaya Mohan Guvva; linux-scsi; linux-pci; Sudarsana Kalluru
Subject: Re: [PATCH v2 RESEND 04/23] bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()

On Mon, Aug 11, 2014 at 11:02:56AM +0000, Anil Gurumurthy wrote:
> Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>

Many thanks, Anil!

If your Ack apply to this patch only or to all three 'bfa' patches in this series?

Thanks!

> -----Original Message-----
> From: Alexander Gordeev [mailto:agordeev@redhat.com]
> Sent: 11 August 2014 13:09
> To: linux-kernel
> Cc: Anil Gurumurthy; Vijaya Mohan Guvva; linux-scsi; linux-pci; Anil 
> Gurumurthy; Sudarsana Kalluru
> Subject: Re: [PATCH v2 RESEND 04/23] bfa: Use pci_enable_msix_exact() 
> instead of pci_enable_msix()
> 
> On Wed, Jul 16, 2014 at 08:05:08PM +0200, Alexander Gordeev wrote:
> > As result of deprecation of MSI-X/MSI enablement functions
> > pci_enable_msix() and pci_enable_msi_block() all drivers using these 
> > two interfaces need to be updated to use the new
> > pci_enable_msi_range()  or pci_enable_msi_exact() and
> > pci_enable_msix_range() or pci_enable_msix_exact() interfaces.
> 
> Anil, Sudarsana,
> 
> Could you please review bfa patches in this series?
> 
> Thanks!
> 
> > Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
> > Cc: Anil Gurumurthy <agurumur@brocade.com>
> > Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
> > Cc: linux-scsi@vger.kernel.org
> > Cc: linux-pci@vger.kernel.org
> > Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
> > ---
> >  drivers/scsi/bfa/bfad.c |   20 ++++++--------------
> >  1 files changed, 6 insertions(+), 14 deletions(-)
> > 
> > diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c index
> > c18279f..e90a374 100644
> > --- a/drivers/scsi/bfa/bfad.c
> > +++ b/drivers/scsi/bfa/bfad.c
> > @@ -1234,29 +1234,21 @@ bfad_setup_intr(struct bfad_s *bfad)
> >  	if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
> >  	   (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
> >  
> > -		error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
> > +		error = pci_enable_msix_exact(bfad->pcidev,
> > +					      msix_entries, bfad->nvec);
> >  		/* In CT1 & CT2, try to allocate just one vector */
> > -		if (error > 0 && bfa_asic_id_ctc(pdev->device)) {
> > +		if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) {
> >  			printk(KERN_WARNING "bfa %s: trying one msix "
> >  			       "vector failed to allocate %d[%d]\n",
> >  			       bfad->pci_name, bfad->nvec, error);
> >  			bfad->nvec = 1;
> > -			error = pci_enable_msix(bfad->pcidev,
> > -						msix_entries, bfad->nvec);
> > +			error = pci_enable_msix_exact(bfad->pcidev,
> > +						      msix_entries, 1);
> >  		}
> >  
> > -		/*
> > -		 * Only error number of vector is available.
> > -		 * We don't have a mechanism to map multiple
> > -		 * interrupts into one vector, so even if we
> > -		 * can try to request less vectors, we don't
> > -		 * know how to associate interrupt events to
> > -		 *  vectors. Linux doesn't duplicate vectors
> > -		 * in the MSIX table for this case.
> > -		 */
> >  		if (error) {
> >  			printk(KERN_WARNING "bfad%d: "
> > -			       "pci_enable_msix failed (%d), "
> > +			       "pci_enable_msix_exact failed (%d), "
> >  			       "use line based.\n",
> >  				bfad->inst_no, error);
> >  			goto line_based;
> > --
> > 1.7.7.6
> > 

--
Regards,
Alexander Gordeev
agordeev@redhat.com

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