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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-17 17:54:40 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-17 17:54:40 -0700
commitc55d267de274d308927b60c3e740c1a826832317 (patch)
tree21b53a8c725d9f9650f60d94b349459d5b8dae10 /drivers/scsi/scsi_lib.c
parent61ef46fd45c3c62dc7c880a45dd2aa841b9af8fb (diff)
parentbc898c97f7ba24def788d9f80786cf028a197122 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (170 commits) [SCSI] scsi_dh_rdac: Add MD36xxf into device list [SCSI] scsi_debug: add consecutive medium errors [SCSI] libsas: fix ata list corruption issue [SCSI] hpsa: export resettable host attribute [SCSI] hpsa: move device attributes to avoid forward declarations [SCSI] scsi_debug: Logical Block Provisioning (SBC3r26) [SCSI] sd: Logical Block Provisioning update [SCSI] Include protection operation in SCSI command trace [SCSI] hpsa: fix incorrect PCI IDs and add two new ones (2nd try) [SCSI] target: Fix volume size misreporting for volumes > 2TB [SCSI] bnx2fc: Broadcom FCoE offload driver [SCSI] fcoe: fix broken fcoe interface reset [SCSI] fcoe: precedence bug in fcoe_filter_frames() [SCSI] libfcoe: Remove stale fcoe-netdev entries [SCSI] libfcoe: Move FCOE_MTU definition from fcoe.h to libfcoe.h [SCSI] libfc: introduce __fc_fill_fc_hdr that accepts fc_hdr as an argument [SCSI] fcoe, libfc: initialize EM anchors list and then update npiv EMs [SCSI] Revert "[SCSI] libfc: fix exchange being deleted when the abort itself is timed out" [SCSI] libfc: Fixing a memory leak when destroying an interface [SCSI] megaraid_sas: Version and Changelog update ... Fix up trivial conflicts due to whitespace differences in drivers/scsi/libsas/{sas_ata.c,sas_scsi_host.c}
Diffstat (limited to 'drivers/scsi/scsi_lib.c')
-rw-r--r--drivers/scsi/scsi_lib.c36
1 files changed, 34 insertions, 2 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index fb2bb35c62c..2d63c8ad144 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -667,6 +667,30 @@ void scsi_release_buffers(struct scsi_cmnd *cmd)
}
EXPORT_SYMBOL(scsi_release_buffers);
+static int __scsi_error_from_host_byte(struct scsi_cmnd *cmd, int result)
+{
+ int error = 0;
+
+ switch(host_byte(result)) {
+ case DID_TRANSPORT_FAILFAST:
+ error = -ENOLINK;
+ break;
+ case DID_TARGET_FAILURE:
+ cmd->result |= (DID_OK << 16);
+ error = -EREMOTEIO;
+ break;
+ case DID_NEXUS_FAILURE:
+ cmd->result |= (DID_OK << 16);
+ error = -EBADE;
+ break;
+ default:
+ error = -EIO;
+ break;
+ }
+
+ return error;
+}
+
/*
* Function: scsi_io_completion()
*
@@ -737,7 +761,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
req->sense_len = len;
}
if (!sense_deferred)
- error = -EIO;
+ error = __scsi_error_from_host_byte(cmd, result);
}
req->resid_len = scsi_get_resid(cmd);
@@ -796,7 +820,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
if (scsi_end_request(cmd, error, good_bytes, result == 0) == NULL)
return;
- error = -EIO;
+ error = __scsi_error_from_host_byte(cmd, result);
if (host_byte(result) == DID_RESET) {
/* Third party bus reset or reset for error recovery
@@ -843,6 +867,13 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
description = "Host Data Integrity Failure";
action = ACTION_FAIL;
error = -EILSEQ;
+ /* INVALID COMMAND OPCODE or INVALID FIELD IN CDB */
+ } else if ((sshdr.asc == 0x20 || sshdr.asc == 0x24) &&
+ (cmd->cmnd[0] == UNMAP ||
+ cmd->cmnd[0] == WRITE_SAME_16 ||
+ cmd->cmnd[0] == WRITE_SAME)) {
+ description = "Discard failure";
+ action = ACTION_FAIL;
} else
action = ACTION_FAIL;
break;
@@ -1038,6 +1069,7 @@ static struct scsi_cmnd *scsi_get_cmd_from_req(struct scsi_device *sdev,
cmd->request = req;
cmd->cmnd = req->cmd;
+ cmd->prot_op = SCSI_PROT_NORMAL;
return cmd;
}