| Message ID | 20191204145918.143134-13-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>; Adaptec OEM Raid Solutions <aacraid@microsemi.com> Subject: [PATCH 12/13] aacraid: use scsi_host_busy_iter() in get_num_of_incomplete_fibs() EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe Use the scsi midlayer helper to traverse the number of outstanding commands. This also eliminates the last usage for the cmd_list functionality so we can drop it. Cc: Adaptec OEM Raid Solutions <aacraid@microsemi.com> Signed-off-by: Hannes Reinecke <hare@suse.de> Acked-by: Balsundar P <balsundar.p@microchip.com> --- drivers/scsi/aacraid/linit.c | 81 ++++++++++++++++++++++---------------------- 1 file changed, 41 insertions(+), 40 deletions(-) diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 877464e9d520..d0d1f3072c0c 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -622,54 +622,56 @@ static int aac_ioctl(struct scsi_device *sdev, unsigned int cmd, return aac_do_ioctl(dev, cmd, arg); } -static int get_num_of_incomplete_fibs(struct aac_dev *aac) +struct fib_count_data { + int mlcnt; + int llcnt; + int ehcnt; + int fwcnt; + int krlcnt; +}; + +static bool fib_count_iter(struct scsi_cmnd *scmnd, void *data, bool +reserved) { + struct fib_count_data *fib_count = data; + + switch (scmnd->SCp.phase) { + case AAC_OWNER_FIRMWARE: + fib_count->fwcnt++; + break; + case AAC_OWNER_ERROR_HANDLER: + fib_count->ehcnt++; + break; + case AAC_OWNER_LOWLEVEL: + fib_count->llcnt++; + break; + case AAC_OWNER_MIDLEVEL: + fib_count->mlcnt++; + break; + default: + fib_count->krlcnt++; + break; + } + return true; +} - unsigned long flags; - struct scsi_device *sdev = NULL; +/* Called during SCSI EH, so we don't need to block requests */ static +int get_num_of_incomplete_fibs(struct aac_dev *aac) { struct Scsi_Host *shost = aac->scsi_host_ptr; - struct scsi_cmnd *scmnd = NULL; struct device *ctrl_dev; + struct fib_count_data fcnt = { }; - int mlcnt = 0; - int llcnt = 0; - int ehcnt = 0; - int fwcnt = 0; - int krlcnt = 0; - - __shost_for_each_device(sdev, shost) { - spin_lock_irqsave(&sdev->list_lock, flags); - list_for_each_entry(scmnd, &sdev->cmd_list, list) { - switch (scmnd->SCp.phase) { - case AAC_OWNER_FIRMWARE: - fwcnt++; - break; - case AAC_OWNER_ERROR_HANDLER: - ehcnt++; - break; - case AAC_OWNER_LOWLEVEL: - llcnt++; - break; - case AAC_OWNER_MIDLEVEL: - mlcnt++; - break; - default: - krlcnt++; - break; - } - } - spin_unlock_irqrestore(&sdev->list_lock, flags); - } + scsi_host_busy_iter(shost, fib_count_iter, &fcnt); ctrl_dev = &aac->pdev->dev; - dev_info(ctrl_dev, "outstanding cmd: midlevel-%d\n", mlcnt); - dev_info(ctrl_dev, "outstanding cmd: lowlevel-%d\n", llcnt); - dev_info(ctrl_dev, "outstanding cmd: error handler-%d\n", ehcnt); - dev_info(ctrl_dev, "outstanding cmd: firmware-%d\n", fwcnt); - dev_info(ctrl_dev, "outstanding cmd: kernel-%d\n", krlcnt); + dev_info(ctrl_dev, "outstanding cmd: midlevel-%d\n", fcnt.mlcnt); + dev_info(ctrl_dev, "outstanding cmd: lowlevel-%d\n", fcnt.llcnt); + dev_info(ctrl_dev, "outstanding cmd: error handler-%d\n", fcnt.ehcnt); + dev_info(ctrl_dev, "outstanding cmd: firmware-%d\n", fcnt.fwcnt); + dev_info(ctrl_dev, "outstanding cmd: kernel-%d\n", fcnt.krlcnt); - return mlcnt + llcnt + ehcnt + fwcnt; + return fcnt.mlcnt + fcnt.llcnt + fcnt.ehcnt + fcnt.fwcnt; } static int aac_eh_abort(struct scsi_cmnd* cmd) @@ -1675,7 +1677,6 @@ static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) shost->irq = pdev->irq; shost->unique_id = unique_id; shost->max_cmd_len = 16; - shost->use_cmd_list = 1; if (aac_cfg_major == AAC_CHARDEV_NEEDS_REINIT) aac_init_char(); -- 2.16.4
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 877464e9d520..d0d1f3072c0c 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -622,54 +622,56 @@ static int aac_ioctl(struct scsi_device *sdev, unsigned int cmd, return aac_do_ioctl(dev, cmd, arg); } -static int get_num_of_incomplete_fibs(struct aac_dev *aac) +struct fib_count_data { + int mlcnt; + int llcnt; + int ehcnt; + int fwcnt; + int krlcnt; +}; + +static bool fib_count_iter(struct scsi_cmnd *scmnd, void *data, bool reserved) { + struct fib_count_data *fib_count = data; + + switch (scmnd->SCp.phase) { + case AAC_OWNER_FIRMWARE: + fib_count->fwcnt++; + break; + case AAC_OWNER_ERROR_HANDLER: + fib_count->ehcnt++; + break; + case AAC_OWNER_LOWLEVEL: + fib_count->llcnt++; + break; + case AAC_OWNER_MIDLEVEL: + fib_count->mlcnt++; + break; + default: + fib_count->krlcnt++; + break; + } + return true; +} - unsigned long flags; - struct scsi_device *sdev = NULL; +/* Called during SCSI EH, so we don't need to block requests */ +static int get_num_of_incomplete_fibs(struct aac_dev *aac) +{ struct Scsi_Host *shost = aac->scsi_host_ptr; - struct scsi_cmnd *scmnd = NULL; struct device *ctrl_dev; + struct fib_count_data fcnt = { }; - int mlcnt = 0; - int llcnt = 0; - int ehcnt = 0; - int fwcnt = 0; - int krlcnt = 0; - - __shost_for_each_device(sdev, shost) { - spin_lock_irqsave(&sdev->list_lock, flags); - list_for_each_entry(scmnd, &sdev->cmd_list, list) { - switch (scmnd->SCp.phase) { - case AAC_OWNER_FIRMWARE: - fwcnt++; - break; - case AAC_OWNER_ERROR_HANDLER: - ehcnt++; - break; - case AAC_OWNER_LOWLEVEL: - llcnt++; - break; - case AAC_OWNER_MIDLEVEL: - mlcnt++; - break; - default: - krlcnt++; - break; - } - } - spin_unlock_irqrestore(&sdev->list_lock, flags); - } + scsi_host_busy_iter(shost, fib_count_iter, &fcnt); ctrl_dev = &aac->pdev->dev; - dev_info(ctrl_dev, "outstanding cmd: midlevel-%d\n", mlcnt); - dev_info(ctrl_dev, "outstanding cmd: lowlevel-%d\n", llcnt); - dev_info(ctrl_dev, "outstanding cmd: error handler-%d\n", ehcnt); - dev_info(ctrl_dev, "outstanding cmd: firmware-%d\n", fwcnt); - dev_info(ctrl_dev, "outstanding cmd: kernel-%d\n", krlcnt); + dev_info(ctrl_dev, "outstanding cmd: midlevel-%d\n", fcnt.mlcnt); + dev_info(ctrl_dev, "outstanding cmd: lowlevel-%d\n", fcnt.llcnt); + dev_info(ctrl_dev, "outstanding cmd: error handler-%d\n", fcnt.ehcnt); + dev_info(ctrl_dev, "outstanding cmd: firmware-%d\n", fcnt.fwcnt); + dev_info(ctrl_dev, "outstanding cmd: kernel-%d\n", fcnt.krlcnt); - return mlcnt + llcnt + ehcnt + fwcnt; + return fcnt.mlcnt + fcnt.llcnt + fcnt.ehcnt + fcnt.fwcnt; } static int aac_eh_abort(struct scsi_cmnd* cmd) @@ -1675,7 +1677,6 @@ static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) shost->irq = pdev->irq; shost->unique_id = unique_id; shost->max_cmd_len = 16; - shost->use_cmd_list = 1; if (aac_cfg_major == AAC_CHARDEV_NEEDS_REINIT) aac_init_char();