This BSG interface is on top of patch : http://marc.info/?l=linux-scsi&m=126884917217355&w=2 Signed-off-by: Vikas Chaudhary <vikas.chaudhary@xxxxxxxxxx> Signed-off-by: Ravi Anand <ravi.anand@xxxxxxxxxx> --- drivers/scsi/qla4xxx/ql4_def.h | 45 +++++++ drivers/scsi/qla4xxx/ql4_glbl.h | 18 +++ drivers/scsi/qla4xxx/ql4_mbx.c | 266 ++++++++++++++++++++++++++++++++++++++- drivers/scsi/qla4xxx/ql4_os.c | 219 ++++++++++++++++++++++++++++++++ 4 files changed, 547 insertions(+), 1 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h index 4288026..527a7ae 100644 --- a/drivers/scsi/qla4xxx/ql4_def.h +++ b/drivers/scsi/qla4xxx/ql4_def.h @@ -471,6 +471,51 @@ struct scsi_qla_host { struct in6_addr ipv6_default_router_addr; }; +struct qla4xxx_dma_mem { + void *va; + dma_addr_t dma; + uint32_t size; + uint32_t req_sg_cnt; + uint32_t rsp_sg_cnt; +}; + +struct qla4xxx_bsg_cmd { + uint32_t opcode; + uint32_t subcode; + uint32_t instance; + uint32_t data_size; + uint32_t offset; + uint32_t option0; + uint32_t option1; + uint32_t option2; + uint32_t option3; +}; + +enum ql4_vendor_priv_cmd { + QL4_GET_DATA, + QL4_SET_DATA, + QL4_RESTORE_FACTORY_DEF, + QL4_DISABLE_ACB, +}; + +enum ql4_get_data_cmd { + QL4_GET_FLASH, + QL4_GET_DDB_DEF, + QL4_GET_DDB, + QL4_GET_IFCB_DEF, + QL4_GET_IFCB, + QL4_GET_ACB, + QL4_GET_ISCSI_STAT, +}; + +enum ql4_set_data_cmd { + QL4_SET_FLASH, + QL4_SET_DDB, + QL4_SET_IFCB, + QL4_SET_ACB, + QL4_RESET_ISCSI_STAT, +}; + static inline int is_ipv4_enabled(struct scsi_qla_host *ha) { return ((ha->ipv4_options & IPOPT_IPv4_PROTOCOL_ENABLE) != 0); diff --git a/drivers/scsi/qla4xxx/ql4_glbl.h b/drivers/scsi/qla4xxx/ql4_glbl.h index c4636f6..c1af9d6 100644 --- a/drivers/scsi/qla4xxx/ql4_glbl.h +++ b/drivers/scsi/qla4xxx/ql4_glbl.h @@ -35,6 +35,24 @@ int qla4xxx_get_flash(struct scsi_qla_host * ha, dma_addr_t dma_addr, int qla4xxx_get_firmware_status(struct scsi_qla_host * ha); int qla4xxx_get_firmware_state(struct scsi_qla_host * ha); int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha); +int qla4xxx_get_default_ddb(struct scsi_qla_host *ha, + dma_addr_t dma_addr); +int qla4xxx_bsg_get_ifcb(struct scsi_qla_host *ha, dma_addr_t data_dma, + uint32_t sub_cmd); +int qla4xxx_get_acb(struct scsi_qla_host *ha, dma_addr_t data_dma, + uint32_t instance, uint32_t data_len); +int qla4xxx_get_iscsi_stat(struct scsi_qla_host *ha, uint32_t device_index, + dma_addr_t data_dma); +int qla4xxx_set_flash(struct scsi_qla_host *ha, dma_addr_t dma_addr, + uint32_t offset, uint32_t option, uint32_t data_len); +int qla4xxx_bsg_set_ifcb(struct scsi_qla_host *ha, dma_addr_t data_dma); +int qla4xxx_set_acb(struct scsi_qla_host *ha, dma_addr_t data_dma, + uint32_t instance, uint32_t acb_len); +int qla4xxx_reset_iscsi_stat(struct scsi_qla_host *ha, uint32_t device_index); +int qla4xxx_restore_factory_defaults(struct iscsi_bsg_job *job, + struct qla4xxx_bsg_cmd *qla4xxx_cmd); +int qla4xxx_disable_acb(struct iscsi_bsg_job *bsg_job, + struct qla4xxx_bsg_cmd *qla4xxx_cmd); /* FIXME: Goodness! this really wants a small struct to hold the * parameters. On x86 the args will get passed on the stack! */ diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index e1315cd..12f2e0c 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -954,7 +954,7 @@ int qla4xxx_get_fw_version(struct scsi_qla_host * ha) return QLA_SUCCESS; } -static int qla4xxx_get_default_ddb(struct scsi_qla_host *ha, +int qla4xxx_get_default_ddb(struct scsi_qla_host *ha, dma_addr_t dma_addr) { uint32_t mbox_cmd[MBOX_REG_COUNT]; @@ -1056,3 +1056,267 @@ qla4xxx_send_tgts_exit: return ret_val; } +int qla4xxx_bsg_get_ifcb(struct scsi_qla_host *ha, dma_addr_t data_dma, + uint32_t sub_cmd) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + switch (sub_cmd) { + case QL4_GET_IFCB_DEF: + mbox_cmd[0] = MBOX_CMD_GET_INIT_FW_CTRL_BLOCK_DEFAULTS; + break; + case QL4_GET_IFCB: + mbox_cmd[0] = MBOX_CMD_GET_INIT_FW_CTRL_BLOCK; + break; + } + + mbox_cmd[2] = LSDW(data_dma); + mbox_cmd[3] = MSDW(data_dma); + mbox_cmd[4] = sizeof(struct init_fw_ctrl_blk); + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], + &mbox_sts[0]) != QLA_SUCCESS) { + printk("scsi%ld: %s: " + "Failed to get init_fw_ctrl_blk, staus: %04X\n", + ha->host_no, __func__, mbox_sts[0]); + return QLA_ERROR; + } + return QLA_SUCCESS; +} + +int qla4xxx_get_acb(struct scsi_qla_host *ha, dma_addr_t data_dma, + uint32_t instance, uint32_t data_len) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + mbox_cmd[0] = MBOX_CMD_GET_ACB; + mbox_cmd[1] = instance; /* Primary/Secondary */ + mbox_cmd[2] = LSDW(data_dma); + mbox_cmd[3] = MSDW(data_dma); + mbox_cmd[4] = data_len; + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], + &mbox_sts[0]) != QLA_SUCCESS) { + printk("scsi%ld: %s: " + "Failed to get acb, staus: %04X\n", + ha->host_no, __func__, mbox_sts[0]); + return QLA_ERROR; + } + return QLA_SUCCESS; +} + +int qla4xxx_get_iscsi_stat(struct scsi_qla_host *ha, uint32_t device_index, + dma_addr_t data_dma) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + mbox_cmd[0] = MBOX_CMD_GET_MANAGEMENT_DATA; + mbox_cmd[1] = device_index; + mbox_cmd[2] = LSDW(data_dma); + mbox_cmd[3] = MSDW(data_dma); + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], + &mbox_sts[0]) != QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_MANAGEMENT_DATA," + " failed w/ status %04X\n", + ha->host_no, __func__, mbox_sts[0])); + return QLA_ERROR; + } + + return QLA_SUCCESS; +} + +int qla4xxx_set_flash(struct scsi_qla_host *ha, dma_addr_t dma_addr, + uint32_t offset, uint32_t option, uint32_t data_len) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + mbox_cmd[0] = MBOX_CMD_WRITE_FLASH; + mbox_cmd[1] = LSDW(dma_addr); + mbox_cmd[2] = MSDW(dma_addr); + mbox_cmd[3] = offset; + mbox_cmd[4] = data_len; + mbox_cmd[5] = option; + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], + &mbox_sts[0]) != QLA_SUCCESS) { + printk("scsi%ld: %s: " + "MBOX_CMD_WRITE_FLASH failed w/ status %04X\n", + ha->host_no, __func__, mbox_sts[0]); + return QLA_ERROR; + } + + return QLA_SUCCESS; +} + +int qla4xxx_bsg_set_ifcb(struct scsi_qla_host *ha, dma_addr_t data_dma) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + mbox_cmd[0] = MBOX_CMD_INITIALIZE_FIRMWARE; + mbox_cmd[1] = 0; + mbox_cmd[2] = LSDW(data_dma); + mbox_cmd[3] = MSDW(data_dma); + mbox_cmd[4] = sizeof(struct init_fw_ctrl_blk); + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0], + &mbox_sts[0]) != QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: MBOX_CMD_INITIALIZE_FIRMWARE," + " failed w/ status %04X\n", + ha->host_no, __func__, mbox_sts[0])); + return QLA_ERROR; + } + + return QLA_SUCCESS; +} + +int qla4xxx_set_acb(struct scsi_qla_host *ha, dma_addr_t data_dma, + uint32_t instance, uint32_t acb_len) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + mbox_cmd[0] = MBOX_CMD_SET_ACB; + mbox_cmd[1] = instance; + mbox_cmd[2] = LSDW(data_dma); + mbox_cmd[3] = MSDW(data_dma); + mbox_cmd[4] = acb_len; + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0], + &mbox_sts[0]) != QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: MBOX_CMD_SET_ACB, failed w/ " + "status %04X\n", ha->host_no, __func__, mbox_sts[0])); + return QLA_ERROR; + } + + return QLA_SUCCESS; +} + +int qla4xxx_reset_iscsi_stat(struct scsi_qla_host *ha, uint32_t device_index) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + mbox_cmd[0] = MBOX_CMD_GET_MANAGEMENT_DATA; + mbox_cmd[1] = device_index; + mbox_cmd[2] = 0; + mbox_cmd[3] = 0; + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], + &mbox_sts[0]) != QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_MANAGEMENT_DATA," + " failed w/ status %04X\n", + ha->host_no, __func__, mbox_sts[0])); + return QLA_ERROR; + } + + return QLA_SUCCESS; +} + +/** + * qla4xxx_restore_factory_defaults - restore hba factory defaults + * @job: iscsi_bsg_job to handle + **/ +int qla4xxx_restore_factory_defaults(struct iscsi_bsg_job *bsg_job, + struct qla4xxx_bsg_cmd *qla4xxx_cmd) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + struct scsi_qla_host *ha = to_qla_host(bsg_job->shost); + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + mbox_cmd[0] = MBOX_CMD_RESTORE_FACTORY_DEFAULTS; + mbox_cmd[3] = qla4xxx_cmd->option0; + mbox_cmd[4] = qla4xxx_cmd->option1; + mbox_cmd[5] = qla4xxx_cmd->option2; + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], + &mbox_sts[0]) != QLA_SUCCESS) { + DEBUG2(printk("scsi%ld: %s: MBOX_CMD_RESTORE_FACTORY_DEFAULTS," + " failed w/ status %04X\n", + ha->host_no, __func__, mbox_sts[0])); + return QLA_ERROR; + } + + return QLA_SUCCESS; +} + +int qla4xxx_disable_acb(struct iscsi_bsg_job *bsg_job, + struct qla4xxx_bsg_cmd *qla4xxx_cmd) +{ + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; + struct scsi_qla_host *ha = to_qla_host(bsg_job->shost); + int ret = QLA_SUCCESS; + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + mbox_cmd[0] = MBOX_CMD_DISABLE_ACB; + mbox_cmd[1] = qla4xxx_cmd->instance; + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0], + &mbox_sts[0]) != QLA_SUCCESS) { + if (mbox_sts[0] == MBOX_STS_INTERMEDIATE_COMPLETION) { + unsigned long wait_cnt; + + wait_cnt = jiffies + (WAIT_CMD_TOV * HZ); + + while (time_before(jiffies, wait_cnt)) { + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(HZ); + + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + + mbox_cmd[0] = MBOX_CMD_GET_IP_ADDR_STATE; + mbox_cmd[1] = qla4xxx_cmd->instance; + /*TODO: check fw specs*/ + + if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, + 2, &mbox_cmd[0], &mbox_sts[0]) == + QLA_SUCCESS) { + if (!(mbox_sts[1] & 0xF0000000)) + break; + } else { + DEBUG2(printk("scsi%ld: %s: Command " + "failed\n", ha->host_no, + __func__)); + ret = QLA_ERROR; + break; + } + } + } else + ret = QLA_ERROR; + } + + return ret; +} diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 38b1d38..24eaeae 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -15,6 +15,8 @@ #include "ql4_glbl.h" #include "ql4_dbg.h" #include "ql4_inline.h" +#include <scsi/scsi_bsg_iscsi.h> +#include <scsi/scsi_netlink.h> /* * Driver version @@ -68,6 +70,7 @@ static int qla4xxx_host_get_param(struct Scsi_Host *shost, enum iscsi_host_param param, char *buf); static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session); static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc); +static int qla4xxx_bsg_request(struct iscsi_bsg_job *job); /* * SCSI host template entry points @@ -108,6 +111,7 @@ static struct scsi_host_template qla4xxx_driver_template = { .sg_tablesize = SG_ALL, .max_sectors = 0xFFFF, + .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC, }; static struct iscsi_transport qla4xxx_iscsi_transport = { @@ -125,10 +129,225 @@ static struct iscsi_transport qla4xxx_iscsi_transport = { .get_session_param = qla4xxx_sess_get_param, .get_host_param = qla4xxx_host_get_param, .session_recovery_timedout = qla4xxx_recovery_timedout, + .bsg_request = qla4xxx_bsg_request, }; static struct scsi_transport_template *qla4xxx_scsi_transport; +/** + * qla4xxx_get_data - data from driver to application + * @job: iscsi_bsg_job to handle + **/ +int qla4xxx_get_data(struct iscsi_bsg_job *bsg_job, + struct qla4xxx_bsg_cmd *qla4xxx_cmd, + struct qla4xxx_dma_mem mem) +{ + int rval = QLA_SUCCESS; + struct scsi_qla_host *ha = to_qla_host(bsg_job->shost); + + switch (qla4xxx_cmd->subcode) { + case QL4_GET_FLASH: + rval = qla4xxx_get_flash(ha, mem.dma, qla4xxx_cmd->offset, + mem.size); + break; + case QL4_GET_DDB_DEF: + rval = qla4xxx_get_default_ddb(ha, mem.dma); + break; + case QL4_GET_DDB: + rval = qla4xxx_get_fwddb_entry(ha, qla4xxx_cmd->instance, + NULL, mem.dma, NULL, NULL, + NULL, NULL, NULL, NULL); + break; + case QL4_GET_IFCB_DEF: + case QL4_GET_IFCB: + rval = qla4xxx_bsg_get_ifcb(ha, mem.dma, + qla4xxx_cmd->subcode); + break; + case QL4_GET_ACB: + rval = qla4xxx_get_acb(ha, mem.dma, qla4xxx_cmd->instance, + mem.size); + break; + case QL4_GET_ISCSI_STAT: + rval = qla4xxx_get_iscsi_stat(ha, qla4xxx_cmd->instance, + mem.dma); + break; + default: + DEBUG2(printk("scsi %ld: %s: invalid sub command code: 0x%x\n", + ha->host_no, __func__, qla4xxx_cmd->opcode)); + rval = -EINVAL; + } + + bsg_job->reply->reply_payload_rcv_len = mem.size; + return rval; +} + +/** + * qla4xxx_set_data - data from application to driver + * @ha: Pointer to host adapter structure. + * @job: iscsi_bsg_job to handle + * @vendor_cmd: bsg vendor specific command structure + * @data: data buffer + * @data_dma: DMA address of data buffer + **/ +int qla4xxx_set_data(struct iscsi_bsg_job *bsg_job, + struct qla4xxx_bsg_cmd *qla4xxx_cmd, + struct qla4xxx_dma_mem mem) +{ + int rval = QLA_SUCCESS; + struct scsi_qla_host *ha = to_qla_host(bsg_job->shost); + + /* Copy the request buffer in req_data now */ + sg_copy_to_buffer(bsg_job->request_payload.sg_list, + bsg_job->request_payload.sg_cnt, mem.va, + mem.size); + + switch (qla4xxx_cmd->subcode) { + case QL4_SET_FLASH: + rval = qla4xxx_set_flash(ha, mem.dma, qla4xxx_cmd->offset, + qla4xxx_cmd->option0, mem.size); + break; + case QL4_SET_DDB: + rval = qla4xxx_set_ddb_entry(ha, qla4xxx_cmd->instance, + mem.dma); + break; + case QL4_SET_IFCB: + rval = qla4xxx_bsg_set_ifcb(ha, mem.dma); + break; + case QL4_SET_ACB: + rval = qla4xxx_set_acb(ha, mem.dma, qla4xxx_cmd->instance, + mem.size); + break; + case QL4_RESET_ISCSI_STAT: + rval = qla4xxx_reset_iscsi_stat(ha, qla4xxx_cmd->instance); + break; + default: + DEBUG2(printk("scsi %ld: %s: invalid sub command code: 0x%x\n", + ha->host_no, __func__, qla4xxx_cmd->opcode)); + rval = -EINVAL; + } + bsg_job->reply->reply_payload_rcv_len = 0; + return rval; +} + +/** + * qla4xxx_process_vendor_specific - handle vendor specific bsg request + * @job: iscsi_bsg_job to handle + **/ +int qla4xxx_process_vendor_specific(struct iscsi_bsg_job *bsg_job) +{ + struct scsi_qla_host *ha = to_qla_host(bsg_job->shost); + struct qla4xxx_bsg_cmd *qla4xxx_cmd; + struct qla4xxx_dma_mem mem; + int rval = QLA_SUCCESS; + + qla4xxx_cmd = (struct qla4xxx_bsg_cmd *) ((char *)bsg_job->request + + sizeof(struct iscsi_bsg_request)); + + mem.req_sg_cnt = + dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list, + bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE); + + if (!mem.req_sg_cnt) { + rval = -ENOMEM; + goto done; + } + + mem.rsp_sg_cnt = + dma_map_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list, + bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE); + + if (!mem.rsp_sg_cnt) { + rval = -ENOMEM; + goto done; + } + + if ((mem.req_sg_cnt != bsg_job->request_payload.sg_cnt) || + (mem.rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) { + DEBUG2(printk(KERN_INFO + "dma mapping resulted in different sg counts \ + [request_sg_cnt: %x dma_request_sg_cnt: %x\ + reply_sg_cnt: %x dma_reply_sg_cnt: %x]\n", + bsg_job->request_payload.sg_cnt, mem.req_sg_cnt, + bsg_job->reply_payload.sg_cnt, mem.rsp_sg_cnt)); + + rval = -EAGAIN; + goto done_unmap_sg; + } + + mem.size = qla4xxx_cmd->data_size; + mem.va = dma_alloc_coherent(&ha->pdev->dev, mem.size, + &mem.dma, GFP_KERNEL); + if (mem.va == NULL) { + DEBUG2(printk("scsi %ld: %s: fail to allocate dma memory " + "for data", ha->host_no, __func__)); + rval = -EIO; + goto done_free_dma; + } + + switch (qla4xxx_cmd->opcode) { + case QL4_GET_DATA: + rval = qla4xxx_get_data(bsg_job, qla4xxx_cmd, mem); + break; + case QL4_SET_DATA: + rval = qla4xxx_set_data(bsg_job, qla4xxx_cmd, mem); + break; + case QL4_RESTORE_FACTORY_DEF: + rval = qla4xxx_restore_factory_defaults(bsg_job, qla4xxx_cmd); + break; + case QL4_DISABLE_ACB: + rval = qla4xxx_disable_acb(bsg_job, qla4xxx_cmd); + break; + default: + DEBUG2(printk("scsi %ld: %s: invalid command code: 0x%x\n", + ha->host_no, __func__, qla4xxx_cmd->opcode)); + rval = -EINVAL; + } + bsg_job->reply->result = rval; + bsg_job->job_done(bsg_job); + + +done_free_dma: + dma_free_coherent(&ha->pdev->dev, mem.size, mem.va, mem.dma); +done_unmap_sg: + dma_unmap_sg(&ha->pdev->dev, + bsg_job->request_payload.sg_list, + bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE); + + dma_unmap_sg(&ha->pdev->dev, + bsg_job->reply_payload.sg_list, + bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE); +done: + return rval; +} + +/** + * qla4xxx_bsg_request - handle bsg request from ISCSI transport + * @job: iscsi_bsg_job to handle + */ +static int qla4xxx_bsg_request(struct iscsi_bsg_job *job) +{ + uint32_t msgcode; + int rval = -EINVAL; + + msgcode = job->request->msgcode; + + switch (msgcode) { + case ISCSI_BSG_HST_VENDOR: + rval = qla4xxx_process_vendor_specific(job); + break; + case ISCSI_BSG_HST_NET_CONFIG: + printk(KERN_ERR "ISCSI_BSG_HST_NET_CONFIG Commands " + "NOT Supported\n"); + rval = -ENOSYS; + break; + default: + rval = -EINVAL; + break; + } + + return rval; +} + static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) { struct iscsi_cls_session *session; -- 1.7.0.5 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
