[PATCH v2 18/35] scsi: cxlflash: Convert to scsi_exec_req

Mike Christie
2022-09-29T02:57:06Z

scsi_execute* is going to be removed. Convert to scsi_exec_req so
we pass all args in a scsi_exec_args struct.

Signed-off-by: Mike Christie <michael.christie@oracle.com>
---
drivers/scsi/cxlflash/superpipe.c | 18 ++++++++++++------
drivers/scsi/cxlflash/vlun.c | 11 ++++++++---
2 files changed, 20 insertions(+), 9 deletions(-)

diff --git a/drivers/scsi/cxlflash/superpipe.c b/drivers/scsi/cxlflash/superpipe.c
index df0ebabbf387..724e52f0b58c 100644
--- a/drivers/scsi/cxlflash/superpipe.c
+++ b/drivers/scsi/cxlflash/superpipe.c
@@ -308,16 +308,16 @@ static int afu_attach(struct cxlflash_cfg *cfg, struct ctx_info *ctxi)
* @lli: LUN destined for capacity request.
*
* The READ_CAP16 can take quite a while to complete. Should an EEH occur while
- * in scsi_execute(), the EEH handler will attempt to recover. As part of the
+ * in scsi_exec_req(), the EEH handler will attempt to recover. As part of the
* recovery, the handler drains all currently running ioctls, waiting until they
* have completed before proceeding with a reset. As this routine is used on the
* ioctl path, this can create a condition where the EEH handler becomes stuck,
* infinitely waiting for this ioctl thread. To avoid this behavior, temporarily
* unmark this thread as an ioctl thread by releasing the ioctl read semaphore.
* This will allow the EEH handler to proceed with a recovery while this thread
- * is still running. Once the scsi_execute() returns, reacquire the ioctl read
+ * is still running. Once the scsi_exec_req() returns, reacquire the ioctl read
* semaphore and check the adapter state in case it changed while inside of
- * scsi_execute(). The state check will wait if the adapter is still being
+ * scsi_exec_req(). The state check will wait if the adapter is still being
* recovered or return a failure if the recovery failed. In the event that the
* adapter reset failed, simply return the failure as the ioctl would be unable
* to continue.
@@ -357,9 +357,15 @@ static int read_cap16(struct scsi_device *sdev, struct llun_info *lli)

/* Drop the ioctl read semahpore across lengthy call */
up_read(&cfg->ioctl_rwsem);
- result = scsi_execute(sdev, scsi_cmd, DMA_FROM_DEVICE, cmd_buf,
- CMD_BUFSIZE, NULL, &sshdr, to, CMD_RETRIES,
- 0, 0, NULL);
+ result = scsi_exec_req(((struct scsi_exec_args) {
+ .sdev = sdev,
+ .cmd = scsi_cmd,
+ .data_dir = DMA_FROM_DEVICE,
+ .buf = cmd_buf,
+ .buf_len = CMD_BUFSIZE,
+ .sshdr = &sshdr,
+ .timeout = to,
+ .retries = CMD_RETRIES }));
down_read(&cfg->ioctl_rwsem);
rc = check_state(cfg);
if (rc) {
diff --git a/drivers/scsi/cxlflash/vlun.c b/drivers/scsi/cxlflash/vlun.c
index 5c74dc7c2288..4fb5d91c08ba 100644
--- a/drivers/scsi/cxlflash/vlun.c
+++ b/drivers/scsi/cxlflash/vlun.c
@@ -450,9 +450,14 @@ static int write_same16(struct scsi_device *sdev,

/* Drop the ioctl read semahpore across lengthy call */
up_read(&cfg->ioctl_rwsem);
- result = scsi_execute(sdev, scsi_cmd, DMA_TO_DEVICE, cmd_buf,
- CMD_BUFSIZE, NULL, NULL, to,
- CMD_RETRIES, 0, 0, NULL);
+ result = scsi_exec_req(((struct scsi_exec_args) {
+ .sdev = sdev,
+ .cmd = scsi_cmd,
+ .data_dir = DMA_TO_DEVICE,
+ .buf = cmd_buf,
+ .buf_len = CMD_BUFSIZE,
+ .timeout = to,
+ .retries = CMD_RETRIES }));
down_read(&cfg->ioctl_rwsem);
rc = check_state(cfg);
if (rc) {
--
2.25.1