diff options
Diffstat (limited to 'drivers/target/target_core_spc.c')
| -rw-r--r-- | drivers/target/target_core_spc.c | 36 |
1 files changed, 28 insertions, 8 deletions
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index 4cb667d720a..074539558a5 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -1,7 +1,7 @@ /* * SCSI Primary Commands (SPC) parsing and emulation. * - * (c) Copyright 2002-2012 RisingTide Systems LLC. + * (c) Copyright 2002-2013 Datera, Inc. * * Nicholas A. Bellinger <nab@kernel.org> * @@ -35,7 +35,7 @@ #include "target_core_alua.h" #include "target_core_pr.h" #include "target_core_ua.h" - +#include "target_core_xcopy.h" static void spc_fill_alua_data(struct se_port *port, unsigned char *buf) { @@ -95,11 +95,20 @@ spc_emulate_inquiry_std(struct se_cmd *cmd, unsigned char *buf) */ spc_fill_alua_data(lun->lun_sep, buf); + /* + * Set Third-Party Copy (3PC) bit to indicate support for EXTENDED_COPY + */ + if (dev->dev_attrib.emulate_3pc) + buf[5] |= 0x8; + buf[7] = 0x2; /* CmdQue=1 */ - snprintf(&buf[8], 8, "LIO-ORG"); - snprintf(&buf[16], 16, "%s", dev->t10_wwn.model); - snprintf(&buf[32], 4, "%s", dev->t10_wwn.revision); + memcpy(&buf[8], "LIO-ORG ", 8); + memset(&buf[16], 0x20, 16); + memcpy(&buf[16], dev->t10_wwn.model, + min_t(size_t, strlen(dev->t10_wwn.model), 16)); + memcpy(&buf[32], dev->t10_wwn.revision, + min_t(size_t, strlen(dev->t10_wwn.revision), 4)); buf[4] = 31; /* Set additional length to 31 */ return 0; @@ -126,8 +135,8 @@ spc_emulate_evpd_80(struct se_cmd *cmd, unsigned char *buf) return 0; } -static void spc_parse_naa_6h_vendor_specific(struct se_device *dev, - unsigned char *buf) +void spc_parse_naa_6h_vendor_specific(struct se_device *dev, + unsigned char *buf) { unsigned char *p = &dev->t10_wwn.unit_serial[0]; int cnt; @@ -457,6 +466,11 @@ spc_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf) /* Set WSNZ to 1 */ buf[4] = 0x01; + /* + * Set MAXIMUM COMPARE AND WRITE LENGTH + */ + if (dev->dev_attrib.emulate_caw) + buf[5] = 0x01; /* * Set OPTIMAL TRANSFER LENGTH GRANULARITY @@ -1247,8 +1261,14 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size) *size = (cdb[6] << 24) | (cdb[7] << 16) | (cdb[8] << 8) | cdb[9]; break; case EXTENDED_COPY: - case READ_ATTRIBUTE: + *size = get_unaligned_be32(&cdb[10]); + cmd->execute_cmd = target_do_xcopy; + break; case RECEIVE_COPY_RESULTS: + *size = get_unaligned_be32(&cdb[10]); + cmd->execute_cmd = target_do_receive_copy_results; + break; + case READ_ATTRIBUTE: case WRITE_ATTRIBUTE: *size = (cdb[10] << 24) | (cdb[11] << 16) | (cdb[12] << 8) | cdb[13]; |