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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2012-05-30 14:09:10 -0700 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2012-06-12 21:38:42 -0700 |
| commit | dec1fb1a225fb0d0c2939977f49acbf32e630a8f (patch) | |
| tree | b23eef8647320740c5eafc1c1a2087eafa7f3ea5 | |
| parent | 3705d25e94d8f5601e7d425098d96c173c3a9eae (diff) | |
| download | linux-dec1fb1a225fb0d0c2939977f49acbf32e630a8f.tar.gz linux-dec1fb1a225fb0d0c2939977f49acbf32e630a8f.tar.xz linux-dec1fb1a225fb0d0c2939977f49acbf32e630a8f.zip | |
target: Move MAINTENANCE_[IN,OUT] from pscsi_parse_cdb -> spc_parse_cdb
The MAINTENANCE_[IN,OUT] CDB parsing required for generic ALUA emulation
needs to be in spc_parse_cdb() to function for virtual TYPE_DISK exports,
instead of in backend pscsi_parse_cdb() code used only for passthrough ops.
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
| -rw-r--r-- | drivers/target/target_core_spc.c | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index 96dcb57089f7..4c861de538c9 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -35,6 +35,7 @@ #include <target/target_core_fabric.h> #include "target_core_internal.h" +#include "target_core_alua.h" #include "target_core_pr.h" #include "target_core_ua.h" @@ -940,7 +941,8 @@ static int spc_emulate_testunitready(struct se_cmd *cmd) int spc_parse_cdb(struct se_cmd *cmd, unsigned int *size) { - struct se_subsystem_dev *su_dev = cmd->se_dev->se_sub_dev; + struct se_device *dev = cmd->se_dev; + struct se_subsystem_dev *su_dev = dev->se_sub_dev; unsigned char *cdb = cmd->t_task_cdb; switch (cdb[0]) { @@ -1050,6 +1052,44 @@ int spc_parse_cdb(struct se_cmd *cmd, unsigned int *size) cmd->execute_cmd = spc_emulate_testunitready; *size = 0; break; + case MAINTENANCE_IN: + if (dev->transport->get_device_type(dev) != TYPE_ROM) { + /* + * MAINTENANCE_IN from SCC-2 + * Check for emulated MI_REPORT_TARGET_PGS + */ + if ((cdb[1] & 0x1f) == MI_REPORT_TARGET_PGS && + su_dev->t10_alua.alua_type == SPC3_ALUA_EMULATED) { + cmd->execute_cmd = + target_emulate_report_target_port_groups; + } + *size = get_unaligned_be32(&cdb[6]); + } else { + /* + * GPCMD_SEND_KEY from multi media commands + */ + *size = get_unaligned_be16(&cdb[8]); + } + break; + case MAINTENANCE_OUT: + if (dev->transport->get_device_type(dev) != TYPE_ROM) { + /* + * MAINTENANCE_OUT from SCC-2 + * Check for emulated MO_SET_TARGET_PGS. + */ + if (cdb[1] == MO_SET_TARGET_PGS && + su_dev->t10_alua.alua_type == SPC3_ALUA_EMULATED) { + cmd->execute_cmd = + target_emulate_set_target_port_groups; + } + *size = get_unaligned_be32(&cdb[6]); + } else { + /* + * GPCMD_SEND_KEY from multi media commands + */ + *size = get_unaligned_be16(&cdb[8]); + } + break; default: pr_warn("TARGET_CORE[%s]: Unsupported SCSI Opcode" " 0x%02x, sending CHECK_CONDITION.\n", |