Re: [PATCH v2 RESEND 08/23] hpsa: Fallback to MSI rather than to INTx if MSI-X failed

2014-08-13 Thread scameron
On Wed, Jul 16, 2014 at 08:05:12PM +0200, Alexander Gordeev wrote:
 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 agord...@redhat.com
 Cc: Stephen M. Cameron scame...@beardog.cce.hp.com
 Cc: iss_storage...@hp.com
 Cc: linux-scsi@vger.kernel.org
 Cc: linux-...@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 31184b3..648dec2 100644
 --- a/drivers/scsi/hpsa.c
 +++ b/drivers/scsi/hpsa.c
 @@ -6177,7 +6177,6 @@ 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

Ack.

Sorry for the slow reply, this got lost in the tornadic maelstrom
I call my inbox.

I also tested this with a Smart Array P420, P420i, and P430 in
the system by ifdef'ing out the code for MSI-X and setting
h-msix_vector = 0, to force it down the MSI path, and that all
appears to work. 

-- steve

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Re: [PATCH v2 RESEND 08/23] hpsa: Fallback to MSI rather than to INTx if MSI-X failed

2014-08-13 Thread Alexander Gordeev
On Wed, Aug 13, 2014 at 11:04:54AM -0500, scame...@beardog.cce.hp.com wrote:
 On Wed, Jul 16, 2014 at 08:05:12PM +0200, Alexander Gordeev wrote:
  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 agord...@redhat.com
  Cc: Stephen M. Cameron scame...@beardog.cce.hp.com
  Cc: iss_storage...@hp.com
  Cc: linux-scsi@vger.kernel.org
  Cc: linux-...@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 31184b3..648dec2 100644
  --- a/drivers/scsi/hpsa.c
  +++ b/drivers/scsi/hpsa.c
  @@ -6177,7 +6177,6 @@ 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
 
 Ack.
 
 Sorry for the slow reply, this got lost in the tornadic maelstrom
 I call my inbox.
 
 I also tested this with a Smart Array P420, P420i, and P430 in
 the system by ifdef'ing out the code for MSI-X and setting
 h-msix_vector = 0, to force it down the MSI path, and that all
 appears to work. 

Thank you, Steve!
If your Ack apply to 08/23 or to 09/23 as well?

 -- steve
 

-- 
Regards,
Alexander Gordeev
agord...@redhat.com
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Re: [PATCH v2 RESEND 08/23] hpsa: Fallback to MSI rather than to INTx if MSI-X failed

2014-08-11 Thread Alexander Gordeev
On Sat, Jul 26, 2014 at 09:16:47AM +0100, Alexander Gordeev wrote:
 On Wed, Jul 16, 2014 at 08:05:12PM +0200, Alexander Gordeev wrote:
  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.
 
 Hi Stephen,
 
 Could you please reveiew hpsa patches in this series?

Stephen?

 Thanks!
 
  Signed-off-by: Alexander Gordeev agord...@redhat.com
  Cc: Stephen M. Cameron scame...@beardog.cce.hp.com
  Cc: iss_storage...@hp.com
  Cc: linux-scsi@vger.kernel.org
  Cc: linux-...@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 31184b3..648dec2 100644
  --- a/drivers/scsi/hpsa.c
  +++ b/drivers/scsi/hpsa.c
  @@ -6177,7 +6177,6 @@ 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
  
 
 -- 
 Regards,
 Alexander Gordeev
 agord...@redhat.com
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