| Message ID | 20191204145918.143134-10-hare@suse.de (mailing list archive) |
|---|---|
| State | Deferred |
| Headers | show |
| Series | scsi: remove legacy cmd_list implementation | expand |
Acked-by: Balsundar P < Balsundar.P@microchip.com> -----Original Message----- From: Hannes Reinecke <hare@suse.de> Sent: Wednesday, December 4, 2019 20:29 To: Martin K. Petersen <martin.petersen@oracle.com> Cc: Christoph Hellwig <hch@lst.de>; Bart van Assche <bvanassche@acm.org>; Balsundar P - I31211 <Balsundar.P@microchip.com>; James Bottomley <james.bottomley@hansenpartnership.com>; linux-scsi@vger.kernel.org; Hannes Reinecke <hare@suse.de>; Balsundar P <balsundar.p@microsemi.com>; Adaptec OEM Raid Solutions <aacraid@microsemi.com> Subject: [PATCH 09/13] aacraid: use scsi_host_(block,unblock) to block I/O EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe Use scsi_host_block() and scsi_host_unblock() instead of scsi_block_requests()/scsi_unblock_requests() to block and unblock I/O. This has the advantage that the block layer will stop sending I/O to the adapter instead of having the SCSI midlayer requeueing I/O internally. Cc: Balsundar P <balsundar.p@microsemi.com> Cc: Adaptec OEM Raid Solutions <aacraid@microsemi.com> Signed-off-by: Hannes Reinecke <hare@suse.de> --- drivers/scsi/aacraid/commsup.c | 14 ++------------ drivers/scsi/aacraid/linit.c | 15 ++++++--------- 2 files changed, 8 insertions(+), 21 deletions(-) diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 0d8c1ee40759..9c227eefd14c 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -1477,7 +1477,6 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced, u8 reset_type) int index, quirks; int retval; struct Scsi_Host *host = aac->scsi_host_ptr; - struct scsi_device *dev; int jafo = 0; int bled; u64 dmamask; @@ -1605,16 +1604,7 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced, u8 reset_type) */ scsi_host_complete_all_commands(host, DID_RESET); - /* - * Any Device that was already marked offline needs to be marked - * running - */ - __shost_for_each_device(dev, host) { - if (!scsi_device_online(dev)) - scsi_device_set_state(dev, SDEV_RUNNING); - } retval = 0; - out: aac->in_reset = 0; @@ -1655,7 +1645,7 @@ int aac_reset_adapter(struct aac_dev *aac, int forced, u8 reset_type) * target (block maximum 60 seconds). Although not necessary, * it does make us a good storage citizen. */ - scsi_block_requests(host); + scsi_host_block(host); /* Quiesce build, flush cache, write through mode */ if (forced < 2) @@ -1666,7 +1656,7 @@ int aac_reset_adapter(struct aac_dev *aac, int forced, u8 reset_type) retval = _aac_reset_adapter(aac, bled, reset_type); spin_unlock_irqrestore(host->host_lock, flagv); - scsi_unblock_requests(host); + retval = scsi_host_unblock(host, SDEV_RUNNING); if ((forced < 2) && (retval == -ENODEV)) { /* Unwind aac_send_shutdown() IOP_RESET unsupported/disabled */ diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 4d5b34e0d3a9..877464e9d520 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -1894,7 +1894,7 @@ static int aac_suspend(struct pci_dev *pdev, pm_message_t state) struct Scsi_Host *shost = pci_get_drvdata(pdev); struct aac_dev *aac = (struct aac_dev *)shost->hostdata; - scsi_block_requests(shost); + scsi_host_block(shost); aac_cancel_rescan_worker(aac); aac_send_shutdown(aac); @@ -1930,7 +1930,7 @@ static int aac_resume(struct pci_dev *pdev) * aac_send_shutdown() to block ioctls from upperlayer */ aac->adapter_shutdown = 0; - scsi_unblock_requests(shost); + scsi_host_unblock(shost, SDEV_RUNNING); return 0; @@ -1945,7 +1945,8 @@ static int aac_resume(struct pci_dev *pdev) static void aac_shutdown(struct pci_dev *dev) { struct Scsi_Host *shost = pci_get_drvdata(dev); - scsi_block_requests(shost); + + scsi_host_block(shost); __aac_shutdown((struct aac_dev *)shost->hostdata); } @@ -1991,7 +1992,7 @@ static pci_ers_result_t aac_pci_error_detected(struct pci_dev *pdev, case pci_channel_io_frozen: aac->handle_pci_error = 1; - scsi_block_requests(aac->scsi_host_ptr); + scsi_host_block(shost); aac_cancel_rescan_worker(aac); scsi_host_complete_all_commands(shost, DID_NO_CONNECT); aac_release_resources(aac); @@ -2044,7 +2045,6 @@ static pci_ers_result_t aac_pci_slot_reset(struct pci_dev *pdev) static void aac_pci_resume(struct pci_dev *pdev) { struct Scsi_Host *shost = pci_get_drvdata(pdev); - struct scsi_device *sdev = NULL; struct aac_dev *aac = (struct aac_dev *)shost_priv(shost); if (aac_adapter_ioremap(aac, aac->base_size)) { @@ -2071,10 +2071,7 @@ static void aac_pci_resume(struct pci_dev *pdev) aac->adapter_shutdown = 0; aac->handle_pci_error = 0; - shost_for_each_device(sdev, shost) - if (sdev->sdev_state == SDEV_OFFLINE) - sdev->sdev_state = SDEV_RUNNING; - scsi_unblock_requests(aac->scsi_host_ptr); + scsi_host_unblock(shost, SDEV_RUNNING); aac_scan_host(aac); pci_save_state(pdev); -- 2.16.4
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 0d8c1ee40759..9c227eefd14c 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -1477,7 +1477,6 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced, u8 reset_type) int index, quirks; int retval; struct Scsi_Host *host = aac->scsi_host_ptr; - struct scsi_device *dev; int jafo = 0; int bled; u64 dmamask; @@ -1605,16 +1604,7 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced, u8 reset_type) */ scsi_host_complete_all_commands(host, DID_RESET); - /* - * Any Device that was already marked offline needs to be marked - * running - */ - __shost_for_each_device(dev, host) { - if (!scsi_device_online(dev)) - scsi_device_set_state(dev, SDEV_RUNNING); - } retval = 0; - out: aac->in_reset = 0; @@ -1655,7 +1645,7 @@ int aac_reset_adapter(struct aac_dev *aac, int forced, u8 reset_type) * target (block maximum 60 seconds). Although not necessary, * it does make us a good storage citizen. */ - scsi_block_requests(host); + scsi_host_block(host); /* Quiesce build, flush cache, write through mode */ if (forced < 2) @@ -1666,7 +1656,7 @@ int aac_reset_adapter(struct aac_dev *aac, int forced, u8 reset_type) retval = _aac_reset_adapter(aac, bled, reset_type); spin_unlock_irqrestore(host->host_lock, flagv); - scsi_unblock_requests(host); + retval = scsi_host_unblock(host, SDEV_RUNNING); if ((forced < 2) && (retval == -ENODEV)) { /* Unwind aac_send_shutdown() IOP_RESET unsupported/disabled */ diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 4d5b34e0d3a9..877464e9d520 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -1894,7 +1894,7 @@ static int aac_suspend(struct pci_dev *pdev, pm_message_t state) struct Scsi_Host *shost = pci_get_drvdata(pdev); struct aac_dev *aac = (struct aac_dev *)shost->hostdata; - scsi_block_requests(shost); + scsi_host_block(shost); aac_cancel_rescan_worker(aac); aac_send_shutdown(aac); @@ -1930,7 +1930,7 @@ static int aac_resume(struct pci_dev *pdev) * aac_send_shutdown() to block ioctls from upperlayer */ aac->adapter_shutdown = 0; - scsi_unblock_requests(shost); + scsi_host_unblock(shost, SDEV_RUNNING); return 0; @@ -1945,7 +1945,8 @@ static int aac_resume(struct pci_dev *pdev) static void aac_shutdown(struct pci_dev *dev) { struct Scsi_Host *shost = pci_get_drvdata(dev); - scsi_block_requests(shost); + + scsi_host_block(shost); __aac_shutdown((struct aac_dev *)shost->hostdata); } @@ -1991,7 +1992,7 @@ static pci_ers_result_t aac_pci_error_detected(struct pci_dev *pdev, case pci_channel_io_frozen: aac->handle_pci_error = 1; - scsi_block_requests(aac->scsi_host_ptr); + scsi_host_block(shost); aac_cancel_rescan_worker(aac); scsi_host_complete_all_commands(shost, DID_NO_CONNECT); aac_release_resources(aac); @@ -2044,7 +2045,6 @@ static pci_ers_result_t aac_pci_slot_reset(struct pci_dev *pdev) static void aac_pci_resume(struct pci_dev *pdev) { struct Scsi_Host *shost = pci_get_drvdata(pdev); - struct scsi_device *sdev = NULL; struct aac_dev *aac = (struct aac_dev *)shost_priv(shost); if (aac_adapter_ioremap(aac, aac->base_size)) { @@ -2071,10 +2071,7 @@ static void aac_pci_resume(struct pci_dev *pdev) aac->adapter_shutdown = 0; aac->handle_pci_error = 0; - shost_for_each_device(sdev, shost) - if (sdev->sdev_state == SDEV_OFFLINE) - sdev->sdev_state = SDEV_RUNNING; - scsi_unblock_requests(aac->scsi_host_ptr); + scsi_host_unblock(shost, SDEV_RUNNING); aac_scan_host(aac); pci_save_state(pdev);
Use scsi_host_block() and scsi_host_unblock() instead of scsi_block_requests()/scsi_unblock_requests() to block and unblock I/O. This has the advantage that the block layer will stop sending I/O to the adapter instead of having the SCSI midlayer requeueing I/O internally. Cc: Balsundar P <balsundar.p@microsemi.com> Cc: Adaptec OEM Raid Solutions <aacraid@microsemi.com> Signed-off-by: Hannes Reinecke <hare@suse.de> --- drivers/scsi/aacraid/commsup.c | 14 ++------------ drivers/scsi/aacraid/linit.c | 15 ++++++--------- 2 files changed, 8 insertions(+), 21 deletions(-)