diff options
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/cxlflash/main.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c index 35a32024f1c0..ac39856a74b4 100644 --- a/drivers/scsi/cxlflash/main.c +++ b/drivers/scsi/cxlflash/main.c @@ -632,15 +632,30 @@ static void free_mem(struct cxlflash_cfg *cfg) * @cfg: Internal structure associated with the host. * * Safe to call with AFU in a partially allocated/initialized state. + * + * Cleans up all state associated with the command queue, and unmaps + * the MMIO space. + * + * - complete() will take care of commands we initiated (they'll be checked + * in as part of the cleanup that occurs after the completion) + * + * - cmd_checkin() will take care of entries that we did not initiate and that + * have not (and will not) complete because they are sitting on a [now stale] + * hardware queue */ static void stop_afu(struct cxlflash_cfg *cfg) { int i; struct afu *afu = cfg->afu; + struct afu_cmd *cmd; if (likely(afu)) { - for (i = 0; i < CXLFLASH_NUM_CMDS; i++) - complete(&afu->cmd[i].cevent); + for (i = 0; i < CXLFLASH_NUM_CMDS; i++) { + cmd = &afu->cmd[i]; + complete(&cmd->cevent); + if (!atomic_read(&cmd->free)) + cmd_checkin(cmd); + } if (likely(afu->afu_map)) { cxl_psa_unmap((void __iomem *)afu->afu_map); |