diff options
Diffstat (limited to 'drivers/infiniband')
-rw-r--r-- | drivers/infiniband/core/cma.c | 6 | ||||
-rw-r--r-- | drivers/infiniband/hw/nes/nes.c | 5 | ||||
-rw-r--r-- | drivers/infiniband/hw/nes/nes.h | 3 | ||||
-rw-r--r-- | drivers/infiniband/hw/nes/nes_verbs.c | 16 | ||||
-rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib.h | 4 | ||||
-rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_cm.c | 31 | ||||
-rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_main.c | 31 | ||||
-rw-r--r-- | drivers/infiniband/ulp/iser/iscsi_iser.h | 17 | ||||
-rw-r--r-- | drivers/infiniband/ulp/iser/iser_verbs.c | 130 |
9 files changed, 144 insertions, 99 deletions
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 26b3760..1983adc 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -2648,8 +2648,8 @@ static int cma_connect_ib(struct rdma_id_private *id_priv, req.responder_resources = conn_param->responder_resources; req.initiator_depth = conn_param->initiator_depth; req.flow_control = conn_param->flow_control; - req.retry_count = conn_param->retry_count; - req.rnr_retry_count = conn_param->rnr_retry_count; + req.retry_count = min_t(u8, 7, conn_param->retry_count); + req.rnr_retry_count = min_t(u8, 7, conn_param->rnr_retry_count); req.remote_cm_response_timeout = CMA_CM_RESPONSE_TIMEOUT; req.local_cm_response_timeout = CMA_CM_RESPONSE_TIMEOUT; req.max_cm_retries = CMA_MAX_CM_RETRIES; @@ -2770,7 +2770,7 @@ static int cma_accept_ib(struct rdma_id_private *id_priv, rep.initiator_depth = conn_param->initiator_depth; rep.failover_accepted = 0; rep.flow_control = conn_param->flow_control; - rep.rnr_retry_count = conn_param->rnr_retry_count; + rep.rnr_retry_count = min_t(u8, 7, conn_param->rnr_retry_count); rep.srq = id_priv->srq ? 1 : 0; ret = ib_send_cm_rep(id_priv->cm_id.ib, &rep); diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c index 7140199..748db2d 100644 --- a/drivers/infiniband/hw/nes/nes.c +++ b/drivers/infiniband/hw/nes/nes.c @@ -79,11 +79,6 @@ int disable_mpa_crc = 0; module_param(disable_mpa_crc, int, 0644); MODULE_PARM_DESC(disable_mpa_crc, "Disable checking of MPA CRC"); -unsigned int send_first = 0; -module_param(send_first, int, 0644); -MODULE_PARM_DESC(send_first, "Send RDMA Message First on Active Connection"); - - unsigned int nes_drv_opt = NES_DRV_OPT_DISABLE_INT_MOD | NES_DRV_OPT_ENABLE_PAU; module_param(nes_drv_opt, int, 0644); MODULE_PARM_DESC(nes_drv_opt, "Driver option parameters"); diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h index 0da62b9..5cac29e 100644 --- a/drivers/infiniband/hw/nes/nes.h +++ b/drivers/infiniband/hw/nes/nes.h @@ -57,7 +57,7 @@ #define QUEUE_DISCONNECTS #define DRV_NAME "iw_nes" -#define DRV_VERSION "1.5.0.0" +#define DRV_VERSION "1.5.0.1" #define PFX DRV_NAME ": " /* @@ -172,7 +172,6 @@ extern int interrupt_mod_interval; extern int nes_if_count; extern int mpa_version; extern int disable_mpa_crc; -extern unsigned int send_first; extern unsigned int nes_drv_opt; extern unsigned int nes_debug_level; extern unsigned int wqm_quanta; diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c index 1dadcf3..cd0ecb2 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.c +++ b/drivers/infiniband/hw/nes/nes_verbs.c @@ -3006,6 +3006,7 @@ int nes_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, switch (nesqp->hw_iwarp_state) { case NES_AEQE_IWARP_STATE_CLOSING: next_iwarp_state = NES_CQP_QP_IWARP_STATE_CLOSING; + break; case NES_AEQE_IWARP_STATE_TERMINATE: next_iwarp_state = NES_CQP_QP_IWARP_STATE_TERMINATE; break; @@ -3068,18 +3069,9 @@ int nes_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, } nesqp->ibqp_state = attr->qp_state; - if (((nesqp->iwarp_state & NES_CQP_QP_IWARP_STATE_MASK) == - (u32)NES_CQP_QP_IWARP_STATE_RTS) && - ((next_iwarp_state & NES_CQP_QP_IWARP_STATE_MASK) > - (u32)NES_CQP_QP_IWARP_STATE_RTS)) { - nesqp->iwarp_state = next_iwarp_state & NES_CQP_QP_IWARP_STATE_MASK; - nes_debug(NES_DBG_MOD_QP, "Change nesqp->iwarp_state=%08x\n", - nesqp->iwarp_state); - } else { - nesqp->iwarp_state = next_iwarp_state & NES_CQP_QP_IWARP_STATE_MASK; - nes_debug(NES_DBG_MOD_QP, "Change nesqp->iwarp_state=%08x\n", - nesqp->iwarp_state); - } + nesqp->iwarp_state = next_iwarp_state & NES_CQP_QP_IWARP_STATE_MASK; + nes_debug(NES_DBG_MOD_QP, "Change nesqp->iwarp_state=%08x\n", + nesqp->iwarp_state); } if (attr_mask & IB_QP_ACCESS_FLAGS) { diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h index 196eb52..07ca6fd 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib.h +++ b/drivers/infiniband/ulp/ipoib/ipoib.h @@ -535,14 +535,14 @@ void ipoib_drain_cq(struct net_device *dev); void ipoib_set_ethtool_ops(struct net_device *dev); int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca); -#ifdef CONFIG_INFINIBAND_IPOIB_CM - #define IPOIB_FLAGS_RC 0x80 #define IPOIB_FLAGS_UC 0x40 /* We don't support UC connections at the moment */ #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC)) +#ifdef CONFIG_INFINIBAND_IPOIB_CM + extern int ipoib_max_conn_qp; static inline int ipoib_cm_admin_enabled(struct net_device *dev) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c index 175581c..72ae63f 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c @@ -1448,37 +1448,6 @@ static ssize_t show_mode(struct device *d, struct device_attribute *attr, return sprintf(buf, "datagram\n"); } -int ipoib_set_mode(struct net_device *dev, const char *buf) -{ - struct ipoib_dev_priv *priv = netdev_priv(dev); - - /* flush paths if we switch modes so that connections are restarted */ - if (IPOIB_CM_SUPPORTED(dev->dev_addr) && !strcmp(buf, "connected\n")) { - set_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); - ipoib_warn(priv, "enabling connected mode " - "will cause multicast packet drops\n"); - netdev_update_features(dev); - rtnl_unlock(); - priv->tx_wr.send_flags &= ~IB_SEND_IP_CSUM; - - ipoib_flush_paths(dev); - rtnl_lock(); - return 0; - } - - if (!strcmp(buf, "datagram\n")) { - clear_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); - netdev_update_features(dev); - dev_set_mtu(dev, min(priv->mcast_mtu, dev->mtu)); - rtnl_unlock(); - ipoib_flush_paths(dev); - rtnl_lock(); - return 0; - } - - return -EINVAL; -} - static ssize_t set_mode(struct device *d, struct device_attribute *attr, const char *buf, size_t count) { diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index d576c7a..6fdc9e7 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -215,6 +215,37 @@ static int ipoib_change_mtu(struct net_device *dev, int new_mtu) return 0; } +int ipoib_set_mode(struct net_device *dev, const char *buf) +{ + struct ipoib_dev_priv *priv = netdev_priv(dev); + + /* flush paths if we switch modes so that connections are restarted */ + if (IPOIB_CM_SUPPORTED(dev->dev_addr) && !strcmp(buf, "connected\n")) { + set_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); + ipoib_warn(priv, "enabling connected mode " + "will cause multicast packet drops\n"); + netdev_update_features(dev); + rtnl_unlock(); + priv->tx_wr.send_flags &= ~IB_SEND_IP_CSUM; + + ipoib_flush_paths(dev); + rtnl_lock(); + return 0; + } + + if (!strcmp(buf, "datagram\n")) { + clear_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); + netdev_update_features(dev); + dev_set_mtu(dev, min(priv->mcast_mtu, dev->mtu)); + rtnl_unlock(); + ipoib_flush_paths(dev); + rtnl_lock(); + return 0; + } + + return -EINVAL; +} + static struct ipoib_path *__path_find(struct net_device *dev, void *gid) { struct ipoib_dev_priv *priv = netdev_priv(dev); diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h index 296be43..ef7d3be 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.h +++ b/drivers/infiniband/ulp/iser/iscsi_iser.h @@ -177,6 +177,7 @@ struct iser_data_buf { /* fwd declarations */ struct iser_device; +struct iser_cq_desc; struct iscsi_iser_conn; struct iscsi_iser_task; struct iscsi_endpoint; @@ -226,16 +227,21 @@ struct iser_rx_desc { char pad[ISER_RX_PAD_SIZE]; } __attribute__((packed)); +#define ISER_MAX_CQ 4 + struct iser_device { struct ib_device *ib_device; struct ib_pd *pd; - struct ib_cq *rx_cq; - struct ib_cq *tx_cq; + struct ib_cq *rx_cq[ISER_MAX_CQ]; + struct ib_cq *tx_cq[ISER_MAX_CQ]; struct ib_mr *mr; - struct tasklet_struct cq_tasklet; + struct tasklet_struct cq_tasklet[ISER_MAX_CQ]; struct ib_event_handler event_handler; struct list_head ig_list; /* entry in ig devices list */ int refcount; + int cq_active_qps[ISER_MAX_CQ]; + int cqs_used; + struct iser_cq_desc *cq_desc; }; struct iser_conn { @@ -287,6 +293,11 @@ struct iser_page_vec { int data_size; }; +struct iser_cq_desc { + struct iser_device *device; + int cq_index; +}; + struct iser_global { struct mutex device_list_mutex;/* */ struct list_head device_list; /* all iSER devices */ diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index 2dddabd..95a49af 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -70,32 +70,50 @@ static void iser_event_handler(struct ib_event_handler *handler, */ static int iser_create_device_ib_res(struct iser_device *device) { + int i, j; + struct iser_cq_desc *cq_desc; + + device->cqs_used = min(ISER_MAX_CQ, device->ib_device->num_comp_vectors); + iser_err("using %d CQs, device %s supports %d vectors\n", device->cqs_used, + device->ib_device->name, device->ib_device->num_comp_vectors); + + device->cq_desc = kmalloc(sizeof(struct iser_cq_desc) * device->cqs_used, + GFP_KERNEL); + if (device->cq_desc == NULL) + goto cq_desc_err; + cq_desc = device->cq_desc; + device->pd = ib_alloc_pd(device->ib_device); if (IS_ERR(device->pd)) goto pd_err; - device->rx_cq = ib_create_cq(device->ib_device, - iser_cq_callback, - iser_cq_event_callback, - (void *)device, - ISER_MAX_RX_CQ_LEN, 0); - if (IS_ERR(device->rx_cq)) - goto rx_cq_err; + for (i = 0; i < device->cqs_used; i++) { + cq_desc[i].device = device; + cq_desc[i].cq_index = i; + + device->rx_cq[i] = ib_create_cq(device->ib_device, + iser_cq_callback, + iser_cq_event_callback, + (void *)&cq_desc[i], + ISER_MAX_RX_CQ_LEN, i); + if (IS_ERR(device->rx_cq[i])) + goto cq_err; - device->tx_cq = ib_create_cq(device->ib_device, - NULL, iser_cq_event_callback, - (void *)device, - ISER_MAX_TX_CQ_LEN, 0); + device->tx_cq[i] = ib_create_cq(device->ib_device, + NULL, iser_cq_event_callback, + (void *)&cq_desc[i], + ISER_MAX_TX_CQ_LEN, i); - if (IS_ERR(device->tx_cq)) - goto tx_cq_err; + if (IS_ERR(device->tx_cq[i])) + goto cq_err; - if (ib_req_notify_cq(device->rx_cq, IB_CQ_NEXT_COMP)) - goto cq_arm_err; + if (ib_req_notify_cq(device->rx_cq[i], IB_CQ_NEXT_COMP)) + goto cq_err; - tasklet_init(&device->cq_tasklet, - iser_cq_tasklet_fn, - (unsigned long)device); + tasklet_init(&device->cq_tasklet[i], + iser_cq_tasklet_fn, + (unsigned long)&cq_desc[i]); + } device->mr = ib_get_dma_mr(device->pd, IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_WRITE | @@ -113,14 +131,19 @@ static int iser_create_device_ib_res(struct iser_device *device) handler_err: ib_dereg_mr(device->mr); dma_mr_err: - tasklet_kill(&device->cq_tasklet); -cq_arm_err: - ib_destroy_cq(device->tx_cq); -tx_cq_err: - ib_destroy_cq(device->rx_cq); -rx_cq_err: + for (j = 0; j < device->cqs_used; j++) + tasklet_kill(&device->cq_tasklet[j]); +cq_err: + for (j = 0; j < i; j++) { + if (device->tx_cq[j]) + ib_destroy_cq(device->tx_cq[j]); + if (device->rx_cq[j]) + ib_destroy_cq(device->rx_cq[j]); + } ib_dealloc_pd(device->pd); pd_err: + kfree(device->cq_desc); +cq_desc_err: iser_err("failed to allocate an IB resource\n"); return -1; } @@ -131,18 +154,24 @@ pd_err: */ static void iser_free_device_ib_res(struct iser_device *device) { + int i; BUG_ON(device->mr == NULL); - tasklet_kill(&device->cq_tasklet); + for (i = 0; i < device->cqs_used; i++) { + tasklet_kill(&device->cq_tasklet[i]); + (void)ib_destroy_cq(device->tx_cq[i]); + (void)ib_destroy_cq(device->rx_cq[i]); + device->tx_cq[i] = NULL; + device->rx_cq[i] = NULL; + } + (void)ib_unregister_event_handler(&device->event_handler); (void)ib_dereg_mr(device->mr); - (void)ib_destroy_cq(device->tx_cq); - (void)ib_destroy_cq(device->rx_cq); (void)ib_dealloc_pd(device->pd); + kfree(device->cq_desc); + device->mr = NULL; - device->tx_cq = NULL; - device->rx_cq = NULL; device->pd = NULL; } @@ -157,6 +186,7 @@ static int iser_create_ib_conn_res(struct iser_conn *ib_conn) struct ib_qp_init_attr init_attr; int req_err, resp_err, ret = -ENOMEM; struct ib_fmr_pool_param params; + int index, min_index = 0; BUG_ON(ib_conn->device == NULL); @@ -220,10 +250,20 @@ static int iser_create_ib_conn_res(struct iser_conn *ib_conn) memset(&init_attr, 0, sizeof init_attr); + mutex_lock(&ig.connlist_mutex); + /* select the CQ with the minimal number of usages */ + for (index = 0; index < device->cqs_used; index++) + if (device->cq_active_qps[index] < + device->cq_active_qps[min_index]) + min_index = index; + device->cq_active_qps[min_index]++; + mutex_unlock(&ig.connlist_mutex); + iser_err("cq index %d used for ib_conn %p\n", min_index, ib_conn); + init_attr.event_handler = iser_qp_event_callback; init_attr.qp_context = (void *)ib_conn; - init_attr.send_cq = device->tx_cq; - init_attr.recv_cq = device->rx_cq; + init_attr.send_cq = device->tx_cq[min_index]; + init_attr.recv_cq = device->rx_cq[min_index]; init_attr.cap.max_send_wr = ISER_QP_MAX_REQ_DTOS; init_attr.cap.max_recv_wr = ISER_QP_MAX_RECV_DTOS; init_attr.cap.max_send_sge = 2; @@ -252,6 +292,7 @@ out_err: */ static int iser_free_ib_conn_res(struct iser_conn *ib_conn, int can_destroy_id) { + int cq_index; BUG_ON(ib_conn == NULL); iser_err("freeing conn %p cma_id %p fmr pool %p qp %p\n", @@ -262,9 +303,12 @@ static int iser_free_ib_conn_res(struct iser_conn *ib_conn, int can_destroy_id) if (ib_conn->fmr_pool != NULL) ib_destroy_fmr_pool(ib_conn->fmr_pool); - if (ib_conn->qp != NULL) - rdma_destroy_qp(ib_conn->cma_id); + if (ib_conn->qp != NULL) { + cq_index = ((struct iser_cq_desc *)ib_conn->qp->recv_cq->cq_context)->cq_index; + ib_conn->device->cq_active_qps[cq_index]--; + rdma_destroy_qp(ib_conn->cma_id); + } /* if cma handler context, the caller acts s.t the cma destroy the id */ if (ib_conn->cma_id != NULL && can_destroy_id) rdma_destroy_id(ib_conn->cma_id); @@ -791,9 +835,9 @@ static void iser_handle_comp_error(struct iser_tx_desc *desc, } } -static int iser_drain_tx_cq(struct iser_device *device) +static int iser_drain_tx_cq(struct iser_device *device, int cq_index) { - struct ib_cq *cq = device->tx_cq; + struct ib_cq *cq = device->tx_cq[cq_index]; struct ib_wc wc; struct iser_tx_desc *tx_desc; struct iser_conn *ib_conn; @@ -822,8 +866,10 @@ static int iser_drain_tx_cq(struct iser_device *device) static void iser_cq_tasklet_fn(unsigned long data) { - struct iser_device *device = (struct iser_device *)data; - struct ib_cq *cq = device->rx_cq; + struct iser_cq_desc *cq_desc = (struct iser_cq_desc *)data; + struct iser_device *device = cq_desc->device; + int cq_index = cq_desc->cq_index; + struct ib_cq *cq = device->rx_cq[cq_index]; struct ib_wc wc; struct iser_rx_desc *desc; unsigned long xfer_len; @@ -851,19 +897,21 @@ static void iser_cq_tasklet_fn(unsigned long data) } completed_rx++; if (!(completed_rx & 63)) - completed_tx += iser_drain_tx_cq(device); + completed_tx += iser_drain_tx_cq(device, cq_index); } /* #warning "it is assumed here that arming CQ only once its empty" * * " would not cause interrupts to be missed" */ ib_req_notify_cq(cq, IB_CQ_NEXT_COMP); - completed_tx += iser_drain_tx_cq(device); + completed_tx += iser_drain_tx_cq(device, cq_index); iser_dbg("got %d rx %d tx completions\n", completed_rx, completed_tx); } static void iser_cq_callback(struct ib_cq *cq, void *cq_context) { - struct iser_device *device = (struct iser_device *)cq_context; + struct iser_cq_desc *cq_desc = (struct iser_cq_desc *)cq_context; + struct iser_device *device = cq_desc->device; + int cq_index = cq_desc->cq_index; - tasklet_schedule(&device->cq_tasklet); + tasklet_schedule(&device->cq_tasklet[cq_index]); } |