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After the controller is reset, it is possible that the disks attached still have outstanding IO to complete. Thus, when the PHYs come back up after controller reset, it is possible that these IOs complete at some unknown point later. We want to ensure that all IOs are complete after the controller reset so that all associated IPTT and other resources can be recycled safely. To achieve this, re-init the disks by TMF or softreset (in case of ATA devices). If the init fails - maybe because the device was removed or link has not come up - then do not release the device resources, but rather rely on SCSI EH to handle the timeout for these resources later on. This patch also does some cleanup to hisi_sas_init_disk(), including removing superfluous cases in the switch statement. Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> |
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| .. | ||
| hisi_sas_main.c | ||
| hisi_sas_v1_hw.c | ||
| hisi_sas_v2_hw.c | ||
| hisi_sas_v3_hw.c | ||
| hisi_sas.h | ||
| Kconfig | ||
| Makefile | ||