diff options
Diffstat (limited to 'drivers/infiniband/ulp/iser')
-rw-r--r-- | drivers/infiniband/ulp/iser/Kconfig | 2 | ||||
-rw-r--r-- | drivers/infiniband/ulp/iser/iscsi_iser.c | 43 | ||||
-rw-r--r-- | drivers/infiniband/ulp/iser/iscsi_iser.h | 9 | ||||
-rw-r--r-- | drivers/infiniband/ulp/iser/iser_initiator.c | 14 | ||||
-rw-r--r-- | drivers/infiniband/ulp/iser/iser_memory.c | 4 | ||||
-rw-r--r-- | drivers/infiniband/ulp/iser/iser_verbs.c | 51 |
6 files changed, 62 insertions, 61 deletions
diff --git a/drivers/infiniband/ulp/iser/Kconfig b/drivers/infiniband/ulp/iser/Kconfig index aecbb9083f0c..fe604c8d2996 100644 --- a/drivers/infiniband/ulp/iser/Kconfig +++ b/drivers/infiniband/ulp/iser/Kconfig @@ -1,6 +1,6 @@ config INFINIBAND_ISER tristate "iSCSI Extensions for RDMA (iSER)" - depends on INFINIBAND && SCSI && INET + depends on SCSI && INET select SCSI_ISCSI_ATTRS ---help--- Support for the iSCSI Extensions for RDMA (iSER) Protocol diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index dd221eda3ea6..bad8dacafd10 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -134,19 +134,9 @@ iscsi_iser_cmd_init(struct iscsi_cmd_task *ctask) { struct iscsi_iser_conn *iser_conn = ctask->conn->dd_data; struct iscsi_iser_cmd_task *iser_ctask = ctask->dd_data; - struct scsi_cmnd *sc = ctask->sc; iser_ctask->command_sent = 0; iser_ctask->iser_conn = iser_conn; - - if (sc->sc_data_direction == DMA_TO_DEVICE) { - BUG_ON(ctask->total_length == 0); - - debug_scsi("cmd [itt %x total %d imm %d unsol_data %d\n", - ctask->itt, ctask->total_length, ctask->imm_count, - ctask->unsol_count); - } - iser_ctask_rdma_init(iser_ctask); } @@ -219,6 +209,14 @@ iscsi_iser_ctask_xmit(struct iscsi_conn *conn, struct iscsi_iser_cmd_task *iser_ctask = ctask->dd_data; int error = 0; + if (ctask->sc->sc_data_direction == DMA_TO_DEVICE) { + BUG_ON(scsi_bufflen(ctask->sc) == 0); + + debug_scsi("cmd [itt %x total %d imm %d unsol_data %d\n", + ctask->itt, scsi_bufflen(ctask->sc), + ctask->imm_count, ctask->unsol_count); + } + debug_scsi("ctask deq [cid %d itt 0x%x]\n", conn->id, ctask->itt); @@ -375,7 +373,8 @@ static struct iscsi_transport iscsi_iser_transport; static struct iscsi_cls_session * iscsi_iser_session_create(struct iscsi_transport *iscsit, struct scsi_transport_template *scsit, - uint32_t initial_cmdsn, uint32_t *hostno) + uint16_t cmds_max, uint16_t qdepth, + uint32_t initial_cmdsn, uint32_t *hostno) { struct iscsi_cls_session *cls_session; struct iscsi_session *session; @@ -386,7 +385,13 @@ iscsi_iser_session_create(struct iscsi_transport *iscsit, struct iscsi_iser_cmd_task *iser_ctask; struct iser_desc *desc; + /* + * we do not support setting can_queue cmd_per_lun from userspace yet + * because we preallocate so many resources + */ cls_session = iscsi_session_setup(iscsit, scsit, + ISCSI_DEF_XMIT_CMDS_MAX, + ISCSI_MAX_CMD_PER_LUN, sizeof(struct iscsi_iser_cmd_task), sizeof(struct iser_desc), initial_cmdsn, &hn); @@ -543,9 +548,10 @@ iscsi_iser_ep_disconnect(__u64 ep_handle) } static struct scsi_host_template iscsi_iser_sht = { + .module = THIS_MODULE, .name = "iSCSI Initiator over iSER, v." DRV_VER, .queuecommand = iscsi_queuecommand, - .can_queue = ISCSI_XMIT_CMDS_MAX - 1, + .can_queue = ISCSI_DEF_XMIT_CMDS_MAX - 1, .sg_tablesize = ISCSI_ISER_SG_TABLESIZE, .max_sectors = 1024, .cmd_per_lun = ISCSI_MAX_CMD_PER_LUN, @@ -574,8 +580,12 @@ static struct iscsi_transport iscsi_iser_transport = { ISCSI_EXP_STATSN | ISCSI_PERSISTENT_PORT | ISCSI_PERSISTENT_ADDRESS | - ISCSI_TARGET_NAME | - ISCSI_TPGT, + ISCSI_TARGET_NAME | ISCSI_TPGT | + ISCSI_USERNAME | ISCSI_PASSWORD | + ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN, + .host_param_mask = ISCSI_HOST_HWADDRESS | + ISCSI_HOST_NETDEV_NAME | + ISCSI_HOST_INITIATOR_NAME, .host_template = &iscsi_iser_sht, .conndata_size = sizeof(struct iscsi_conn), .max_lun = ISCSI_ISER_MAX_LUN, @@ -592,6 +602,9 @@ static struct iscsi_transport iscsi_iser_transport = { .get_session_param = iscsi_session_get_param, .start_conn = iscsi_iser_conn_start, .stop_conn = iscsi_conn_stop, + /* iscsi host params */ + .get_host_param = iscsi_host_get_param, + .set_host_param = iscsi_host_set_param, /* IO */ .send_pdu = iscsi_conn_send_pdu, .get_stats = iscsi_iser_conn_get_stats, @@ -625,7 +638,7 @@ static int __init iser_init(void) ig.desc_cache = kmem_cache_create("iser_descriptors", sizeof (struct iser_desc), 0, SLAB_HWCACHE_ALIGN, - NULL, NULL); + NULL); if (ig.desc_cache == NULL) return -ENOMEM; diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h index 8960196ffb0f..1ee867b1b341 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.h +++ b/drivers/infiniband/ulp/iser/iscsi_iser.h @@ -98,7 +98,7 @@ #define ISER_MAX_TX_MISC_PDUS 6 /* NOOP_OUT(2), TEXT(1), * * SCSI_TMFUNC(2), LOGOUT(1) */ -#define ISER_QP_MAX_RECV_DTOS (ISCSI_XMIT_CMDS_MAX + \ +#define ISER_QP_MAX_RECV_DTOS (ISCSI_DEF_XMIT_CMDS_MAX + \ ISER_MAX_RX_MISC_PDUS + \ ISER_MAX_TX_MISC_PDUS) @@ -110,7 +110,7 @@ #define ISER_INFLIGHT_DATAOUTS 8 -#define ISER_QP_MAX_REQ_DTOS (ISCSI_XMIT_CMDS_MAX * \ +#define ISER_QP_MAX_REQ_DTOS (ISCSI_DEF_XMIT_CMDS_MAX * \ (1 + ISER_INFLIGHT_DATAOUTS) + \ ISER_MAX_TX_MISC_PDUS + \ ISER_MAX_RX_MISC_PDUS) @@ -310,8 +310,6 @@ int iser_conn_init(struct iser_conn **ib_conn); void iser_conn_terminate(struct iser_conn *ib_conn); -void iser_conn_release(struct iser_conn *ib_conn); - void iser_rcv_completion(struct iser_desc *desc, unsigned long dto_xfer_len); @@ -329,9 +327,6 @@ void iser_reg_single(struct iser_device *device, struct iser_regd_buf *regd_buf, enum dma_data_direction direction); -int iser_start_rdma_unaligned_sg(struct iscsi_iser_cmd_task *ctask, - enum iser_data_dir cmd_dir); - void iser_finalize_rdma_unaligned_sg(struct iscsi_iser_cmd_task *ctask, enum iser_data_dir cmd_dir); diff --git a/drivers/infiniband/ulp/iser/iser_initiator.c b/drivers/infiniband/ulp/iser/iser_initiator.c index 3651072f6c1f..9ea5b9aaba7c 100644 --- a/drivers/infiniband/ulp/iser/iser_initiator.c +++ b/drivers/infiniband/ulp/iser/iser_initiator.c @@ -351,18 +351,12 @@ int iser_send_command(struct iscsi_conn *conn, else data_buf = &iser_ctask->data[ISER_DIR_OUT]; - if (sc->use_sg) { /* using a scatter list */ - data_buf->buf = sc->request_buffer; - data_buf->size = sc->use_sg; - } else if (sc->request_bufflen) { - /* using a single buffer - convert it into one entry SG */ - sg_init_one(&data_buf->sg_single, - sc->request_buffer, sc->request_bufflen); - data_buf->buf = &data_buf->sg_single; - data_buf->size = 1; + if (scsi_sg_count(sc)) { /* using a scatter list */ + data_buf->buf = scsi_sglist(sc); + data_buf->size = scsi_sg_count(sc); } - data_buf->data_len = sc->request_bufflen; + data_buf->data_len = scsi_bufflen(sc); if (hdr->flags & ISCSI_FLAG_CMD_READ) { err = iser_prepare_read_cmd(ctask, edtl); diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c index fc9f1fd0ae54..36cdf77ae92a 100644 --- a/drivers/infiniband/ulp/iser/iser_memory.c +++ b/drivers/infiniband/ulp/iser/iser_memory.c @@ -103,8 +103,8 @@ void iser_reg_single(struct iser_device *device, /** * iser_start_rdma_unaligned_sg */ -int iser_start_rdma_unaligned_sg(struct iscsi_iser_cmd_task *iser_ctask, - enum iser_data_dir cmd_dir) +static int iser_start_rdma_unaligned_sg(struct iscsi_iser_cmd_task *iser_ctask, + enum iser_data_dir cmd_dir) { int dma_nents; struct ib_device *dev; diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index 3702e2375553..d42ec0156eec 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -155,8 +155,8 @@ static int iser_create_ib_conn_res(struct iser_conn *ib_conn) params.max_pages_per_fmr = ISCSI_ISER_SG_TABLESIZE + 1; /* make the pool size twice the max number of SCSI commands * * the ML is expected to queue, watermark for unmap at 50% */ - params.pool_size = ISCSI_XMIT_CMDS_MAX * 2; - params.dirty_watermark = ISCSI_XMIT_CMDS_MAX; + params.pool_size = ISCSI_DEF_XMIT_CMDS_MAX * 2; + params.dirty_watermark = ISCSI_DEF_XMIT_CMDS_MAX; params.cache = 0; params.flush_function = NULL; params.access = (IB_ACCESS_LOCAL_WRITE | @@ -311,6 +311,29 @@ static int iser_conn_state_comp_exch(struct iser_conn *ib_conn, } /** + * Frees all conn objects and deallocs conn descriptor + */ +static void iser_conn_release(struct iser_conn *ib_conn) +{ + struct iser_device *device = ib_conn->device; + + BUG_ON(ib_conn->state != ISER_CONN_DOWN); + + mutex_lock(&ig.connlist_mutex); + list_del(&ib_conn->conn_list); + mutex_unlock(&ig.connlist_mutex); + + iser_free_ib_conn_res(ib_conn); + ib_conn->device = NULL; + /* on EVENT_ADDR_ERROR there's no device yet for this conn */ + if (device != NULL) + iser_device_try_release(device); + if (ib_conn->iser_conn) + ib_conn->iser_conn->ib_conn = NULL; + kfree(ib_conn); +} + +/** * triggers start of the disconnect procedures and wait for them to be done */ void iser_conn_terminate(struct iser_conn *ib_conn) @@ -550,30 +573,6 @@ connect_failure: } /** - * Frees all conn objects and deallocs conn descriptor - */ -void iser_conn_release(struct iser_conn *ib_conn) -{ - struct iser_device *device = ib_conn->device; - - BUG_ON(ib_conn->state != ISER_CONN_DOWN); - - mutex_lock(&ig.connlist_mutex); - list_del(&ib_conn->conn_list); - mutex_unlock(&ig.connlist_mutex); - - iser_free_ib_conn_res(ib_conn); - ib_conn->device = NULL; - /* on EVENT_ADDR_ERROR there's no device yet for this conn */ - if (device != NULL) - iser_device_try_release(device); - if (ib_conn->iser_conn) - ib_conn->iser_conn->ib_conn = NULL; - kfree(ib_conn); -} - - -/** * iser_reg_page_vec - Register physical memory * * returns: 0 on success, errno code on failure |