diff options
Diffstat (limited to 'drivers/s390/cio/ccwreq.c')
-rw-r--r-- | drivers/s390/cio/ccwreq.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/s390/cio/ccwreq.c b/drivers/s390/cio/ccwreq.c index 37df42af05e..7f206ed44fd 100644 --- a/drivers/s390/cio/ccwreq.c +++ b/drivers/s390/cio/ccwreq.c | |||
@@ -159,6 +159,7 @@ static enum io_status ccwreq_status(struct ccw_device *cdev, struct irb *lcirb) | |||
159 | { | 159 | { |
160 | struct irb *irb = &cdev->private->irb; | 160 | struct irb *irb = &cdev->private->irb; |
161 | struct cmd_scsw *scsw = &irb->scsw.cmd; | 161 | struct cmd_scsw *scsw = &irb->scsw.cmd; |
162 | enum uc_todo todo; | ||
162 | 163 | ||
163 | /* Perform BASIC SENSE if needed. */ | 164 | /* Perform BASIC SENSE if needed. */ |
164 | if (ccw_device_accumulate_and_sense(cdev, lcirb)) | 165 | if (ccw_device_accumulate_and_sense(cdev, lcirb)) |
@@ -178,6 +179,20 @@ static enum io_status ccwreq_status(struct ccw_device *cdev, struct irb *lcirb) | |||
178 | /* Check for command reject. */ | 179 | /* Check for command reject. */ |
179 | if (irb->ecw[0] & SNS0_CMD_REJECT) | 180 | if (irb->ecw[0] & SNS0_CMD_REJECT) |
180 | return IO_REJECTED; | 181 | return IO_REJECTED; |
182 | /* Ask the driver what to do */ | ||
183 | if (cdev->drv && cdev->drv->uc_handler) { | ||
184 | todo = cdev->drv->uc_handler(cdev, lcirb); | ||
185 | switch (todo) { | ||
186 | case UC_TODO_RETRY: | ||
187 | return IO_STATUS_ERROR; | ||
188 | case UC_TODO_RETRY_ON_NEW_PATH: | ||
189 | return IO_PATH_ERROR; | ||
190 | case UC_TODO_STOP: | ||
191 | return IO_REJECTED; | ||
192 | default: | ||
193 | return IO_STATUS_ERROR; | ||
194 | } | ||
195 | } | ||
181 | /* Assume that unexpected SENSE data implies an error. */ | 196 | /* Assume that unexpected SENSE data implies an error. */ |
182 | return IO_STATUS_ERROR; | 197 | return IO_STATUS_ERROR; |
183 | } | 198 | } |