| Message ID | 41806206e78812afe97101a11881f5a33092a93b.1658195608.git.Thinh.Nguyen@synopsys.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | target: Updates related to UASP | expand |
On Mon, Jul 18, 2022 at 07:07:00PM -0700, Thinh Nguyen wrote: > Microsoft Windows checks for MI_REPORT_SUPPORTED_OPERATION_CODES. Let's > handle this MAINTENANCE_IN command and report supported commands. Please see the RSOC patch series[1]. [1]: https://lore.kernel.org/target-devel/20220718120117.4435-1-d.bogdanov@yadro.com/T/#t
On 7/18/22 9:07 PM, Thinh Nguyen wrote: > Microsoft Windows checks for MI_REPORT_SUPPORTED_OPERATION_CODES. Let's > handle this MAINTENANCE_IN command and report supported commands. > Let's concentrate on Dimitry's patchset for this: https://lore.kernel.org/linux-scsi/20220718120117.4435-1-d.bogdanov@yadro.com/T/#t It's complete and supports when users can enable/disable commands.
On 7/19/2022, Konstantin Shelekhin wrote: > On Mon, Jul 18, 2022 at 07:07:00PM -0700, Thinh Nguyen wrote: >> Microsoft Windows checks for MI_REPORT_SUPPORTED_OPERATION_CODES. Let's >> handle this MAINTENANCE_IN command and report supported commands. > Please see the RSOC patch series[1]. > > [1]: https://urldefense.com/v3/__https://lore.kernel.org/target-devel/20220718120117.4435-1-d.bogdanov@yadro.com/T/*t__;Iw!!A4F2R9G_pg!aSU50xkFUuW-1Obo9oSgdrgMVpjxb7idbtKhNzxCaY4UlbYxcNi1LFozr0U8iq9JdjyZWGP0wLCJLq3qgwHHKoEiQQ$ Great! Thanks, Thinh
On 7/19/2022, Mike Christie wrote: > On 7/18/22 9:07 PM, Thinh Nguyen wrote: >> Microsoft Windows checks for MI_REPORT_SUPPORTED_OPERATION_CODES. Let's >> handle this MAINTENANCE_IN command and report supported commands. >> > Let's concentrate on Dimitry's patchset for this: > > https://urldefense.com/v3/__https://lore.kernel.org/linux-scsi/20220718120117.4435-1-d.bogdanov@yadro.com/T/*t__;Iw!!A4F2R9G_pg!adGsdmnAWvf_URZOmsz8HTGyKk_UyFe9urhtF3SvIigtdGvV8NwGQ9TE46cwDPN1SRJCIyszaqvV1cDF3wuHsyc9bfCmunY$ > > It's complete and supports when users can enable/disable commands. Right, I wasn't aware. It's great that someone's adding full support for it. I'm dropping this patch. Thanks, Thinh
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index b56ef8af66e7..881e04ce8544 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -259,6 +259,76 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd) return 0; } +/* + * REPORT_SUPPORTED_OPERATION_CODES + * + * See spc4r37 section 6.35 + */ +sense_reason_t +target_emulate_report_supported_opcodes(struct se_cmd *cmd) +{ + unsigned char *cdb = cmd->t_task_cdb; + unsigned char *buf; + + /* + * Only supports reporting option 1. + * i.e. one command parameter with no service action. + */ + if ((cdb[2] & 0x7) != 1) { + pr_warn("Unsupported reporting op code %d\n", cdb[2]); + return TCM_UNSUPPORTED_SCSI_OPCODE; + } + + buf = transport_kmap_data_sg(cmd); + if (!buf) + return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; + + switch (cdb[3]) { + case INQUIRY: + case MODE_SENSE: + case MODE_SENSE_10: + case READ_CAPACITY: + case SERVICE_ACTION_IN_16: + case REPORT_LUNS: + case REQUEST_SENSE: + case SYNCHRONIZE_CACHE: + case REZERO_UNIT: + case SEEK_6: + case SEEK_10: + case TEST_UNIT_READY: + case SEND_DIAGNOSTIC: + case MAINTENANCE_IN: + case READ_6: + case READ_10: + case READ_16: + case WRITE_6: + case WRITE_10: + case WRITE_16: + case VERIFY_16: + case MODE_SELECT: + case MODE_SELECT_10: + case START_STOP: + case SECURITY_PROTOCOL_IN: + case SECURITY_PROTOCOL_OUT: + /* Supported */ + buf[1] = 3; + break; + case ATA_12: + case ATA_16: + case VERIFY: + case ZBC_IN: + case ZBC_OUT: + default: + /* Not supported */ + buf[1] = 1; + break; + } + + transport_kunmap_data_sg(cmd); + target_complete_cmd(cmd, SAM_STAT_GOOD); + return 0; +} + /* * SET_TARGET_PORT_GROUPS for explicit ALUA operation. * diff --git a/drivers/target/target_core_alua.h b/drivers/target/target_core_alua.h index fc9637cce825..7941e4dd4f97 100644 --- a/drivers/target/target_core_alua.h +++ b/drivers/target/target_core_alua.h @@ -82,6 +82,8 @@ extern struct kmem_cache *t10_alua_tg_pt_gp_cache; extern struct kmem_cache *t10_alua_lba_map_cache; extern struct kmem_cache *t10_alua_lba_map_mem_cache; +extern sense_reason_t +target_emulate_report_supported_opcodes(struct se_cmd *cmd); extern sense_reason_t target_emulate_report_target_port_groups(struct se_cmd *); extern sense_reason_t target_emulate_set_target_port_groups(struct se_cmd *); extern sense_reason_t target_emulate_report_referrals(struct se_cmd *); diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index c14441c89bed..dd799158609d 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -1425,15 +1425,25 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size) break; case MAINTENANCE_IN: if (dev->transport->get_device_type(dev) != TYPE_ROM) { + u8 action = cdb[1] & 0x1f; + /* * MAINTENANCE_IN from SCC-2 * Check for emulated MI_REPORT_TARGET_PGS */ - if ((cdb[1] & 0x1f) == MI_REPORT_TARGET_PGS) { + if (action == MI_REPORT_TARGET_PGS) { cmd->execute_cmd = target_emulate_report_target_port_groups; + + *size = get_unaligned_be32(&cdb[6]); + } + + if (action == MI_REPORT_SUPPORTED_OPERATION_CODES) { + cmd->execute_cmd = + target_emulate_report_supported_opcodes; + + *size = get_unaligned_be16(&cdb[2]); } - *size = get_unaligned_be32(&cdb[6]); } else { /* * GPCMD_SEND_KEY from multi media commands
Microsoft Windows checks for MI_REPORT_SUPPORTED_OPERATION_CODES. Let's handle this MAINTENANCE_IN command and report supported commands. Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> --- Changes in v2: - Fix spec section number - Fix potential invalid "buf" access on error drivers/target/target_core_alua.c | 70 +++++++++++++++++++++++++++++++ drivers/target/target_core_alua.h | 2 + drivers/target/target_core_spc.c | 14 ++++++- 3 files changed, 84 insertions(+), 2 deletions(-)