diff options
Diffstat (limited to 'drivers')
22 files changed, 569 insertions, 280 deletions
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index 922d35f4fc0..3cab0cedfca 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -3748,6 +3748,7 @@ error1: cm_remove_port_fs(port); } device_unregister(cm_dev->device); + kfree(cm_dev); } static void cm_remove_one(struct ib_device *ib_device) @@ -3776,6 +3777,7 @@ static void cm_remove_one(struct ib_device *ib_device) cm_remove_port_fs(port); } device_unregister(cm_dev->device); + kfree(cm_dev); } static int __init ib_cm_init(void) diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index 1adf2efd3cb..49c45feccd5 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -1697,9 +1697,8 @@ static inline int rcv_has_same_gid(struct ib_mad_agent_private *mad_agent_priv, u8 port_num = mad_agent_priv->agent.port_num; u8 lmc; - send_resp = ((struct ib_mad *)(wr->send_buf.mad))-> - mad_hdr.method & IB_MGMT_METHOD_RESP; - rcv_resp = rwc->recv_buf.mad->mad_hdr.method & IB_MGMT_METHOD_RESP; + send_resp = ib_response_mad((struct ib_mad *)wr->send_buf.mad); + rcv_resp = ib_response_mad(rwc->recv_buf.mad); if (send_resp == rcv_resp) /* both requests, or both responses. GIDs different */ diff --git a/drivers/infiniband/hw/amso1100/c2_provider.c b/drivers/infiniband/hw/amso1100/c2_provider.c index 2acf9b62cf9..69580e282af 100644 --- a/drivers/infiniband/hw/amso1100/c2_provider.c +++ b/drivers/infiniband/hw/amso1100/c2_provider.c @@ -272,7 +272,6 @@ static struct ib_qp *c2_create_qp(struct ib_pd *pd, pr_debug("%s: Invalid QP type: %d\n", __func__, init_attr->qp_type); return ERR_PTR(-EINVAL); - break; } if (err) { diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c index eb778bfd6f6..ecff9804358 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_provider.c +++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c @@ -1155,13 +1155,11 @@ static int iwch_query_port(struct ib_device *ibdev, u8 port, struct ib_port_attr *props) { PDBG("%s ibdev %p\n", __func__, ibdev); + + memset(props, 0, sizeof(struct ib_port_attr)); props->max_mtu = IB_MTU_4096; - props->lid = 0; - props->lmc = 0; - props->sm_lid = 0; - props->sm_sl = 0; + props->active_mtu = IB_MTU_2048; props->state = IB_PORT_ACTIVE; - props->phys_state = 0; props->port_cap_flags = IB_PORT_CM_SUP | IB_PORT_SNMP_TUNNEL_SUP | @@ -1170,7 +1168,6 @@ static int iwch_query_port(struct ib_device *ibdev, IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; props->gid_tbl_len = 1; props->pkey_tbl_len = 1; - props->qkey_viol_cntr = 0; props->active_width = 2; props->active_speed = 2; props->max_msg_sz = -1; diff --git a/drivers/infiniband/hw/ehca/ehca_classes.h b/drivers/infiniband/hw/ehca/ehca_classes.h index 1ab919f836a..5d7b7855afb 100644 --- a/drivers/infiniband/hw/ehca/ehca_classes.h +++ b/drivers/infiniband/hw/ehca/ehca_classes.h @@ -164,6 +164,13 @@ struct ehca_qmap_entry { u16 reported; }; +struct ehca_queue_map { + struct ehca_qmap_entry *map; + unsigned int entries; + unsigned int tail; + unsigned int left_to_poll; +}; + struct ehca_qp { union { struct ib_qp ib_qp; @@ -173,8 +180,9 @@ struct ehca_qp { enum ehca_ext_qp_type ext_type; enum ib_qp_state state; struct ipz_queue ipz_squeue; - struct ehca_qmap_entry *sq_map; + struct ehca_queue_map sq_map; struct ipz_queue ipz_rqueue; + struct ehca_queue_map rq_map; struct h_galpas galpas; u32 qkey; u32 real_qp_num; @@ -204,6 +212,8 @@ struct ehca_qp { atomic_t nr_events; /* events seen */ wait_queue_head_t wait_completion; int mig_armed; + struct list_head sq_err_node; + struct list_head rq_err_node; }; #define IS_SRQ(qp) (qp->ext_type == EQPT_SRQ) @@ -233,6 +243,8 @@ struct ehca_cq { /* mmap counter for resources mapped into user space */ u32 mm_count_queue; u32 mm_count_galpa; + struct list_head sqp_err_list; + struct list_head rqp_err_list; }; enum ehca_mr_flag { diff --git a/drivers/infiniband/hw/ehca/ehca_cq.c b/drivers/infiniband/hw/ehca/ehca_cq.c index 5540b276a33..33647a95eb9 100644 --- a/drivers/infiniband/hw/ehca/ehca_cq.c +++ b/drivers/infiniband/hw/ehca/ehca_cq.c @@ -276,6 +276,9 @@ struct ib_cq *ehca_create_cq(struct ib_device *device, int cqe, int comp_vector, for (i = 0; i < QP_HASHTAB_LEN; i++) INIT_HLIST_HEAD(&my_cq->qp_hashtab[i]); + INIT_LIST_HEAD(&my_cq->sqp_err_list); + INIT_LIST_HEAD(&my_cq->rqp_err_list); + if (context) { struct ipz_queue *ipz_queue = &my_cq->ipz_queue; struct ehca_create_cq_resp resp; diff --git a/drivers/infiniband/hw/ehca/ehca_iverbs.h b/drivers/infiniband/hw/ehca/ehca_iverbs.h index a8a2ea585d2..8f7f282ead6 100644 --- a/drivers/infiniband/hw/ehca/ehca_iverbs.h +++ b/drivers/infiniband/hw/ehca/ehca_iverbs.h @@ -197,6 +197,8 @@ void ehca_poll_eqs(unsigned long data); int ehca_calc_ipd(struct ehca_shca *shca, int port, enum ib_rate path_rate, u32 *ipd); +void ehca_add_to_err_list(struct ehca_qp *qp, int on_sq); + #ifdef CONFIG_PPC_64K_PAGES void *ehca_alloc_fw_ctrlblock(gfp_t flags); void ehca_free_fw_ctrlblock(void *ptr); diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c index b6bcee03673..4dbe2870e01 100644 --- a/drivers/infiniband/hw/ehca/ehca_qp.c +++ b/drivers/infiniband/hw/ehca/ehca_qp.c @@ -396,6 +396,50 @@ static void ehca_determine_small_queue(struct ehca_alloc_queue_parms *queue, queue->is_small = (queue->page_size != 0); } +/* needs to be called with cq->spinlock held */ +void ehca_add_to_err_list(struct ehca_qp *qp, int on_sq) +{ + struct list_head *list, *node; + + /* TODO: support low latency QPs */ + if (qp->ext_type == EQPT_LLQP) + return; + + if (on_sq) { + list = &qp->send_cq->sqp_err_list; + node = &qp->sq_err_node; + } else { + list = &qp->recv_cq->rqp_err_list; + node = &qp->rq_err_node; + } + + if (list_empty(node)) + list_add_tail(node, list); + + return; +} + +static void del_from_err_list(struct ehca_cq *cq, struct list_head *node) +{ + unsigned long flags; + + spin_lock_irqsave(&cq->spinlock, flags); + + if (!list_empty(node)) + list_del_init(node); + + spin_unlock_irqrestore(&cq->spinlock, flags); +} + +static void reset_queue_map(struct ehca_queue_map *qmap) +{ + int i; + + qmap->tail = 0; + for (i = 0; i < qmap->entries; i++) + qmap->map[i].reported = 1; +} + /* * Create an ib_qp struct that is either a QP or an SRQ, depending on * the value of the is_srq parameter. If init_attr and srq_init_attr share @@ -407,12 +451,11 @@ static struct ehca_qp *internal_create_qp( struct ib_srq_init_attr *srq_init_attr, struct ib_udata *udata, int is_srq) { - struct ehca_qp *my_qp; + struct ehca_qp *my_qp, *my_srq = NULL; struct ehca_pd *my_pd = container_of(pd, struct ehca_pd, ib_pd); struct ehca_shca *shca = container_of(pd->device, struct ehca_shca, ib_device); struct ib_ucontext *context = NULL; - u32 nr_qes; u64 h_ret; int is_llqp = 0, has_srq = 0; int qp_type, max_send_sge, max_recv_sge, ret; @@ -457,8 +500,7 @@ static struct ehca_qp *internal_create_qp( /* handle SRQ base QPs */ if (init_attr->srq) { - struct ehca_qp *my_srq = - container_of(init_attr->srq, struct ehca_qp, ib_srq); + my_srq = container_of(init_attr->srq, struct ehca_qp, ib_srq); has_srq = 1; parms.ext_type = EQPT_SRQBASE; @@ -716,15 +758,19 @@ static struct ehca_qp *internal_create_qp( "and pages ret=%i", ret); goto create_qp_exit2; } - nr_qes = my_qp->ipz_squeue.queue_length / + + my_qp->sq_map.entries = my_qp->ipz_squeue.queue_length / my_qp->ipz_squeue.qe_size; - my_qp->sq_map = vmalloc(nr_qes * + my_qp->sq_map.map = vmalloc(my_qp->sq_map.entries * sizeof(struct ehca_qmap_entry)); - if (!my_qp->sq_map) { + if (!my_qp->sq_map.map) { ehca_err(pd->device, "Couldn't allocate squeue " "map ret=%i", ret); goto create_qp_exit3; } + INIT_LIST_HEAD(&my_qp->sq_err_node); + /* to avoid the generation of bogus flush CQEs */ + reset_queue_map(&my_qp->sq_map); } if (HAS_RQ(my_qp)) { @@ -736,6 +782,25 @@ static struct ehca_qp *internal_create_qp( "and pages ret=%i", ret); goto create_qp_exit4; } + + my_qp->rq_map.entries = my_qp->ipz_rqueue.queue_length / + my_qp->ipz_rqueue.qe_size; + my_qp->rq_map.map = vmalloc(my_qp->rq_map.entries * + sizeof(struct ehca_qmap_entry)); + if (!my_qp->rq_map.map) { + ehca_err(pd->device, "Couldn't allocate squeue " + "map ret=%i", ret); + goto create_qp_exit5; + } + INIT_LIST_HEAD(&my_qp->rq_err_node); + /* to avoid the generation of bogus flush CQEs */ + reset_queue_map(&my_qp->rq_map); + } else if (init_attr->srq) { + /* this is a base QP, use the queue map of the SRQ */ + my_qp->rq_map = my_srq->rq_map; + INIT_LIST_HEAD(&my_qp->rq_err_node); + + my_qp->ipz_rqueue = my_srq->ipz_rqueue; } if (is_srq) { @@ -799,7 +864,7 @@ static struct ehca_qp *internal_create_qp( if (ret) { ehca_err(pd->device, "Couldn't assign qp to send_cq ret=%i", ret); - goto create_qp_exit6; + goto create_qp_exit7; } } @@ -825,25 +890,29 @@ static struct ehca_qp *internal_create_qp( if (ib_copy_to_udata(udata, &resp, sizeof resp)) { ehca_err(pd->device, "Copy to udata failed"); ret = -EINVAL; - goto create_qp_exit7; + goto create_qp_exit8; } } return my_qp; -create_qp_exit7: +create_qp_exit8: ehca_cq_unassign_qp(my_qp->send_cq, my_qp->real_qp_num); -create_qp_exit6: +create_qp_exit7: kfree(my_qp->mod_qp_parm); +create_qp_exit6: + if (HAS_RQ(my_qp)) + vfree(my_qp->rq_map.map); + create_qp_exit5: if (HAS_RQ(my_qp)) ipz_queue_dtor(my_pd, &my_qp->ipz_rqueue); create_qp_exit4: if (HAS_SQ(my_qp)) - vfree(my_qp->sq_map); + vfree(my_qp->sq_map.map); create_qp_exit3: if (HAS_SQ(my_qp)) @@ -1035,6 +1104,101 @@ static int prepare_sqe_rts(struct ehca_qp *my_qp, struct ehca_shca *shca, return 0; } +static int calc_left_cqes(u64 wqe_p, struct ipz_queue *ipz_queue, + struct ehca_queue_map *qmap) +{ + void *wqe_v; + u64 q_ofs; + u32 wqe_idx; + + /* convert real to abs address */ + wqe_p = wqe_p & (~(1UL << 63)); + + wqe_v = abs_to_virt(wqe_p); + + if (ipz_queue_abs_to_offset(ipz_queue, wqe_p, &q_ofs)) { + ehca_gen_err("Invalid offset for calculating left cqes " + "wqe_p=%#lx wqe_v=%p\n", wqe_p, wqe_v); + return -EFAULT; + } + + wqe_idx = q_ofs / ipz_queue->qe_size; + if (wqe_idx < qmap->tail) + qmap->left_to_poll = (qmap->entries - qmap->tail) + wqe_idx; + else + qmap->left_to_poll = wqe_idx - qmap->tail; + + return 0; +} + +static int check_for_left_cqes(struct ehca_qp *my_qp, struct ehca_shca *shca) +{ + u64 h_ret; + void *send_wqe_p, *recv_wqe_p; + int ret; + unsigned long flags; + int qp_num = my_qp->ib_qp.qp_num; + + /* this hcall is not supported on base QPs */ + if (my_qp->ext_type != EQPT_SRQBASE) { + /* get send and receive wqe pointer */ + h_ret = hipz_h_disable_and_get_wqe(shca->ipz_hca_handle, + my_qp->ipz_qp_handle, &my_qp->pf, + &send_wqe_p, &recv_wqe_p, 4); + if (h_ret != H_SUCCESS) { + ehca_err(&shca->ib_device, "disable_and_get_wqe() " + "failed ehca_qp=%p qp_num=%x h_ret=%li", + my_qp, qp_num, h_ret); + return ehca2ib_return_code(h_ret); + } + + /* + * acquire lock to ensure that nobody is polling the cq which + * could mean that the qmap->tail pointer is in an + * inconsistent state. + */ + spin_lock_irqsave(&my_qp->send_cq->spinlock, flags); + ret = calc_left_cqes((u64)send_wqe_p, &my_qp->ipz_squeue, + &my_qp->sq_map); + spin_unlock_irqrestore(&my_qp->send_cq->spinlock, flags); + if (ret) + return ret; + + + spin_lock_irqsave(&my_qp->recv_cq->spinlock, flags); + ret = calc_left_cqes((u64)recv_wqe_p, &my_qp->ipz_rqueue, + &my_qp->rq_map); + spin_unlock_irqrestore(&my_qp->recv_cq->spinlock, flags); + if (ret) + return ret; + } else { + spin_lock_irqsave(&my_qp->send_cq->spinlock, flags); + my_qp->sq_map.left_to_poll = 0; + spin_unlock_irqrestore(&my_qp->send_cq->spinlock, flags); + + spin_lock_irqsave(&my_qp->recv_cq->spinlock, flags); + my_qp->rq_map.left_to_poll = 0; + spin_unlock_irqrestore(&my_qp->recv_cq->spinlock, flags); + } + + /* this assures flush cqes being generated only for pending wqes */ + if ((my_qp->sq_map.left_to_poll == 0) && + (my_qp->rq_map.left_to_poll == 0)) { + spin_lock_irqsave(&my_qp->send_cq->spinlock, flags); + ehca_add_to_err_list(my_qp, 1); + spin_unlock_irqrestore(&my_qp->send_cq->spinlock, flags); + + if (HAS_RQ(my_qp)) { + spin_lock_irqsave(&my_qp->recv_cq->spinlock, flags); + ehca_add_to_err_list(my_qp, 0); + spin_unlock_irqrestore(&my_qp->recv_cq->spinlock, + flags); + } + } + + return 0; +} + /* * internal_modify_qp with circumvention to handle aqp0 properly * smi_reset2init indicates if this is an internal reset-to-init-call for @@ -1539,10 +1703,27 @@ static int internal_modify_qp(struct ib_qp *ibqp, goto modify_qp_exit2; } } + if ((qp_new_state == IB_QPS_ERR) && (qp_cur_state != IB_QPS_ERR)) { + ret = check_for_left_cqes(my_qp, shca); + if (ret) + goto modify_qp_exit2; + } if (statetrans == IB_QPST_ANY2RESET) { ipz_qeit_reset(&my_qp->ipz_rqueue); ipz_qeit_reset(&my_qp->ipz_squeue); + + if (qp_cur_state == IB_QPS_ERR) { + del_from_err_list(my_qp->send_cq, &my_qp->sq_err_node); + + if (HAS_RQ(my_qp)) + del_from_err_list(my_qp->recv_cq, + &my_qp->rq_err_node); + } + reset_queue_map(&my_qp->sq_map); + + if (HAS_RQ(my_qp)) + reset_queue_map(&my_qp->rq_map); } if (attr_mask & IB_QP_QKEY) @@ -1958,6 +2139,16 @@ static int internal_destroy_qp(struct ib_device *dev, struct ehca_qp *my_qp, idr_remove(&ehca_qp_idr, my_qp->token); write_unlock_irqrestore(&ehca_qp_idr_lock, flags); + /* + * SRQs will never get into an error list and do not have a recv_cq, + * so we need to skip them here. + */ + if (HAS_RQ(my_qp) && !IS_SRQ(my_qp)) + del_from_err_list(my_qp->recv_cq, &my_qp->rq_err_node); + + if (HAS_SQ(my_qp)) + del_from_err_list(my_qp->send_cq, &my_qp->sq_err_node); + /* now wait until all pending events have completed */ wait_event(my_qp->wait_completion, !atomic_read(&my_qp->nr_events)); @@ -1983,7 +2174,7 @@ static int internal_destroy_qp(struct ib_device *dev, struct ehca_qp *my_qp, if (qp_type == IB_QPT_GSI) { struct ib_event event; ehca_info(dev, "device %s: port %x is inactive.", - shca->ib_device.name, port_num); + shca->ib_device.name, port_num); event.device = &shca->ib_device; event.event = IB_EVENT_PORT_ERR; event.element.port_num = port_num; @@ -1991,11 +2182,15 @@ static int internal_destroy_qp(struct ib_device *dev, struct ehca_qp *my_qp, ib_dispatch_event(&event); } - if (HAS_RQ(my_qp)) + if (HAS_RQ(my_qp)) { ipz_queue_dtor(my_pd, &my_qp->ipz_rqueue); + + vfree(my_qp->rq_map.map); + } if (HAS_SQ(my_qp)) { ipz_queue_dtor(my_pd, &my_qp->ipz_squeue); - vfree(my_qp->sq_map); + + vfree(my_qp->sq_map.map); } kmem_cache_free(qp_cache, my_qp); atomic_dec(&shca->num_qps); diff --git a/drivers/infiniband/hw/ehca/ehca_reqs.c b/drivers/infiniband/hw/ehca/ehca_reqs.c index 4426d82fe79..64928079eaf 100644 --- a/drivers/infiniband/hw/ehca/ehca_reqs.c +++ b/drivers/infiniband/hw/ehca/ehca_reqs.c @@ -53,9 +53,25 @@ /* in RC traffic, insert an empty RDMA READ every this many packets */ #define ACK_CIRC_THRESHOLD 2000000 +static u64 replace_wr_id(u64 wr_id, u16 idx) +{ + u64 ret; + + ret = wr_id & ~QMAP_IDX_MASK; + ret |= idx & QMAP_IDX_MASK; + + return ret; +} + +static u16 get_app_wr_id(u64 wr_id) +{ + return wr_id & QMAP_IDX_MASK; +} + static inline int ehca_write_rwqe(struct ipz_queue *ipz_rqueue, struct ehca_wqe *wqe_p, - struct ib_recv_wr *recv_wr) + struct ib_recv_wr *recv_wr, + u32 rq_map_idx) { u8 cnt_ds; if (unlikely((recv_wr->num_sge < 0) || @@ -69,7 +85,7 @@ static inline int ehca_write_rwqe(struct ipz_queue *ipz_rqueue, /* clear wqe header until sglist */ memset(wqe_p, 0, offsetof(struct ehca_wqe, u.ud_av.sg_list)); - wqe_p->work_request_id = recv_wr->wr_id; + wqe_p->work_request_id = replace_wr_id(recv_wr->wr_id, rq_map_idx); wqe_p->nr_of_data_seg = recv_wr->num_sge; for (cnt_ds = 0; cnt_ds < recv_wr->num_sge; cnt_ds++) { @@ -146,6 +162,7 @@ static inline int ehca_write_swqe(struct ehca_qp *qp, u64 dma_length; struct ehca_av *my_av; u32 remote_qkey = send_wr->wr.ud.remote_qkey; + struct ehca_qmap_entry *qmap_entry = &qp->sq_map.map[sq_map_idx]; if (unlikely((send_wr->num_sge < 0) || (send_wr->num_sge > qp->ipz_squeue.act_nr_of_sg))) { @@ -158,11 +175,10 @@ static inline int ehca_write_swqe(struct ehca_qp *qp, /* clear wqe header until sglist */ memset(wqe_p, 0, offsetof(struct ehca_wqe, u.ud_av.sg_list)); - wqe_p->work_request_id = send_wr->wr_id & ~QMAP_IDX_MASK; - wqe_p->work_request_id |= sq_map_idx & QMAP_IDX_MASK; + wqe_p->work_request_id = replace_wr_id(send_wr->wr_id, sq_map_idx); - qp->sq_map[sq_map_idx].app_wr_id = send_wr->wr_id & QMAP_IDX_MASK; - qp->sq_map[sq_map_idx].reported = 0; + qmap_entry->app_wr_id = get_app_wr_id(send_wr->wr_id); + qmap_entry->reported = 0; switch (send_wr->opcode) { case IB_WR_SEND: @@ -496,7 +512,9 @@ static int internal_post_recv(struct ehca_qp *my_qp, struct ehca_wqe *wqe_p; int wqe_cnt = 0; int ret = 0; + u32 rq_map_idx; unsigned long flags; + struct ehca_qmap_entry *qmap_entry; if (unlikely(!HAS_RQ(my_qp))) { ehca_err(dev, "QP has no RQ ehca_qp=%p qp_num=%x ext_type=%d", @@ -524,8 +542,15 @@ static int internal_post_recv(struct ehca_qp *my_qp, } goto post_recv_exit0; } + /* + * Get the index of the WQE in the recv queue. The same index + * is used for writing into the rq_map. + */ + rq_map_idx = start_offset / my_qp->ipz_rqueue.qe_size; + /* write a RECV WQE into the QUEUE */ - ret = ehca_write_rwqe(&my_qp->ipz_rqueue, wqe_p, cur_recv_wr); + ret = ehca_write_rwqe(&my_qp->ipz_rqueue, wqe_p, cur_recv_wr, + rq_map_idx); /* * if something failed, * reset the free entry pointer to the start value @@ -540,6 +565,11 @@ static int internal_post_recv(struct ehca_qp *my_qp, } goto post_recv_exit0; } + + qmap_entry = &my_qp->rq_map.map[rq_map_idx]; + qmap_entry->app_wr_id = get_app_wr_id(cur_recv_wr->wr_id); + qmap_entry->reported = 0; + wqe_cnt++; } /* eof for cur_recv_wr */ @@ -596,10 +626,12 @@ static const u8 ib_wc_opcode[255] = { /* internal function to poll one entry of cq */ static inline int ehca_poll_cq_one(struct ib_cq *cq, struct ib_wc *wc) { - int ret = 0; + int ret = 0, qmap_tail_idx; struct ehca_cq *my_cq = container_of(cq, struct ehca_cq, ib_cq); struct ehca_cqe *cqe; struct ehca_qp *my_qp; + struct ehca_qmap_entry *qmap_entry; + struct ehca_queue_map *qmap; int cqe_count = 0, is_error; repoll: @@ -674,27 +706,52 @@ repoll: goto repoll; wc->qp = &my_qp->ib_qp; - if (!(cqe->w_completion_flags & WC_SEND_RECEIVE_BIT)) { - struct ehca_qmap_entry *qmap_entry; + if (is_error) { /* - * We got a send completion and need to restore the original - * wr_id. + * set left_to_poll to 0 because in error state, we will not + * get any additional CQEs */ - qmap_entry = &my_qp->sq_map[cqe->work_request_id & - QMAP_IDX_MASK]; + ehca_add_to_err_list(my_qp, 1); + my_qp->sq_map.left_to_poll = 0; - if (qmap_entry->reported) { - ehca_warn(cq->device, "Double cqe on qp_num=%#x", - my_qp->real_qp_num); - /* found a double cqe, discard it and read next one */ - goto repoll; - } - wc->wr_id = cqe->work_request_id & ~QMAP_IDX_MASK; - wc->wr_id |= qmap_entry->app_wr_id; - qmap_entry->reported = 1; - } else + if (HAS_RQ(my_qp)) + ehca_add_to_err_list(my_qp, 0); + my_qp->rq_map.left_to_poll = 0; + } + + qmap_tail_idx = get_app_wr_id(cqe->work_request_id); + if (!(cqe->w_completion_flags & WC_SEND_RECEIVE_BIT)) + /* We got a send completion. */ + qmap = &my_qp->sq_map; + else /* We got a receive completion. */ - wc->wr_id = cqe->work_request_id; + qmap = &my_qp->rq_map; + + qmap_entry = &qmap->map[qmap_tail_idx]; + if (qmap_entry->reported) { + ehca_warn(cq->device, "Double cqe on qp_num=%#x", + my_qp->real_qp_num); + /* found a double cqe, discard it and read next one */ + goto repoll; + } + + wc->wr_id = replace_wr_id(cqe->work_request_id, qmap_entry->app_wr_id); + qmap_entry->reported = 1; + + /* this is a proper completion, we need to advance the tail pointer */ + if (++qmap->tail == qmap->entries) + qmap->tail = 0; + + /* if left_to_poll is decremented to 0, add the QP to the error list */ + if (qmap->left_to_poll > 0) { + qmap->left_to_poll--; + if ((my_qp->sq_map.left_to_poll == 0) && + (my_qp->rq_map.left_to_poll == 0)) { + ehca_add_to_err_list(my_qp, 1); + if (HAS_RQ(my_qp)) + ehca_add_to_err_list(my_qp, 0); + } + } /* eval ib_wc_opcode */ wc->opcode = ib_wc_opcode[cqe->optype]-1; @@ -733,13 +790,88 @@ poll_cq_one_exit0: return ret; } +static int generate_flush_cqes(struct ehca_qp *my_qp, struct ib_cq *cq, + struct ib_wc *wc, int num_entries, + struct ipz_queue *ipz_queue, int on_sq) +{ + int nr = 0; + struct ehca_wqe *wqe; + u64 offset; + struct ehca_queue_map *qmap; + struct ehca_qmap_entry *qmap_entry; + + if (on_sq) + qmap = &my_qp->sq_map; + else + qmap = &my_qp->rq_map; + + qmap_entry = &qmap->map[qmap->tail]; + + while ((nr < num_entries) && (qmap_entry->reported == 0)) { + /* generate flush CQE */ + memset(wc, 0, sizeof(*wc)); + + offset = qmap->tail * ipz_queue->qe_size; + wqe = (struct ehca_wqe *)ipz_qeit_calc(ipz_queue, offset); + if (!wqe) { + ehca_err(cq->device, "Invalid wqe offset=%#lx on " + "qp_num=%#x", offset, my_qp->real_qp_num); + return nr; + } + + wc->wr_id = replace_wr_id(wqe->work_request_id, + qmap_entry->app_wr_id); + + if (on_sq) { + switch (wqe->optype) { + case WQE_OPTYPE_SEND: + wc->opcode = IB_WC_SEND; + break; + case WQE_OPTYPE_RDMAWRITE: + wc->opcode = IB_WC_RDMA_WRITE; + break; + case WQE_OPTYPE_RDMAREAD: + wc->opcode = IB_WC_RDMA_READ; + break; + default: + ehca_err(cq->device, "Invalid optype=%x", + wqe->optype); + return nr; + } + } else + wc->opcode = IB_WC_RECV; + + if (wqe->wr_flag & WQE_WRFLAG_IMM_DATA_PRESENT) { + wc->ex.imm_data = wqe->immediate_data; + wc->wc_flags |= IB_WC_WITH_IMM; + } + + wc->status = IB_WC_WR_FLUSH_ERR; + + wc->qp = &my_qp->ib_qp; + + /* mark as reported and advance tail pointer */ + qmap_entry->reported = 1; + if (++qmap->tail == qmap->entries) + qmap->tail = 0; + qmap_entry = &qmap->map[qmap->tail]; + + wc++; nr++; + } + + return nr; + +} + int ehca_poll_cq(struct ib_cq *cq, int num_entries, struct ib_wc *wc) { struct ehca_cq *my_cq = container_of(cq, struct ehca_cq, ib_cq); int nr; + struct ehca_qp *err_qp; struct ib_wc *current_wc = wc; int ret = 0; unsigned long flags; + int entries_left = num_entries; if (num_entries < 1) { ehca_err(cq->device, "Invalid num_entries=%d ehca_cq=%p " @@ -749,15 +881,40 @@ int ehca_poll_cq(struct ib_cq *cq, int num_entries, struct ib_wc *wc) } spin_lock_irqsave(&my_cq->spinlock, flags); - for (nr = 0; nr < num_entries; nr++) { + + /* generate flush cqes for send queues */ + list_for_each_entry(err_qp, &my_cq->sqp_err_list, sq_err_node) { + nr = generate_flush_cqes(err_qp, cq, current_wc, entries_left, + &err_qp->ipz_squeue, 1); + entries_left -= nr; + current_wc += nr; + + if (entries_left == 0) + break; + } + + /* generate flush cqes for receive queues */ + list_for_each_entry(err_qp, &my_cq->rqp_err_list, rq_err_node) { + nr = generate_flush_cqes(err_qp, cq, current_wc, entries_left, + &err_qp->ipz_rqueue, 0); + entries_left -= nr; + current_wc += nr; + + if (entries_left == 0) + break; + } + + for (nr = 0; nr < entries_left; nr++) { ret = ehca_poll_cq_one(cq, current_wc); if (ret) break; current_wc++; } /* eof for nr */ + entries_left -= nr; + spin_unlock_irqrestore(&my_cq->spinlock, flags); if (ret == -EAGAIN || !ret) - ret = nr; + ret = num_entries - entries_left; poll_cq_exit0: return ret; diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c index 97710522624..7b93cda1a4b 100644 --- a/drivers/infiniband/hw/ipath/ipath_rc.c +++ b/drivers/infiniband/hw/ipath/ipath_rc.c @@ -675,7 +675,8 @@ static void send_rc_ack(struct ipath_qp *qp) hdr.lrh[0] = cpu_to_be16(lrh0); hdr.lrh[1] = cpu_to_be16(qp->remote_ah_attr.dlid); hdr.lrh[2] = cpu_to_be16(hwords + SIZE_OF_CRC); - hdr.lrh[3] = cpu_to_be16(dd->ipath_lid); + hdr.lrh[3] = cpu_to_be16(dd->ipath_lid | + qp->remote_ah_attr.src_path_bits); ohdr->bth[0] = cpu_to_be32(bth0); ohdr->bth[1] = cpu_to_be32(qp->remote_qpn); ohdr->bth[2] = cpu_to_be32(qp->r_ack_psn & IPATH_PSN_MASK); diff --git a/drivers/infiniband/hw/ipath/ipath_ruc.c b/drivers/infiniband/hw/ipath/ipath_ruc.c index af051f75766..fc0f6d9e603 100644 --- a/drivers/infiniband/hw/ipath/ipath_ruc.c +++ b/drivers/infiniband/hw/ipath/ipath_ruc.c @@ -618,7 +618,8 @@ void ipath_make_ruc_header(struct ipath_ibdev *dev, struct ipath_qp *qp, qp->s_hdr.lrh[0] = cpu_to_be16(lrh0); qp->s_hdr.lrh[1] = cpu_to_be16(qp->remote_ah_attr.dlid); qp->s_hdr.lrh[2] = cpu_to_be16(qp->s_hdrwords + nwords + SIZE_OF_CRC); - qp->s_hdr.lrh[3] = cpu_to_be16(dev->dd->ipath_lid); + qp->s_hdr.lrh[3] = cpu_to_be16(dev->dd->ipath_lid | + qp->remote_ah_attr.src_path_bits); bth0 |= ipath_get_pkey(dev->dd, qp->s_pkey_index); bth0 |= extra_bytes << 20; ohdr->bth[0] = cpu_to_be32(bth0 | (1 << 22)); diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index b766e40e9eb..eabc4247860 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -340,9 +340,16 @@ static int ipath_post_one_send(struct ipath_qp *qp, struct ib_send_wr *wr) int acc; int ret; unsigned long flags; + struct ipath_devdata *dd = to_idev(qp->ibqp.device)->dd; spin_lock_irqsave(&qp->s_lock, flags); + if (qp->ibqp.qp_type != IB_QPT_SMI && + !(dd->ipath_flags & IPATH_LINKACTIVE)) { + ret = -ENETDOWN; + goto bail; + } + /* Check that state is OK to post send. */ if (unlikely(!(ib_ipath_state_ops[qp->state] & IPATH_POST_SEND_OK))) goto bail_inval; diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 9559248f265..baa01deb243 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -1058,6 +1058,9 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp, else sqd_event = 0; + if (!ibqp->uobject && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) + context->rlkey |= (1 << 4); + /* * Before passing a kernel QP to the HW, make sure that the * ownership bits of the send queue are set and the SQ diff --git a/drivers/infiniband/hw/mthca/mthca_catas.c b/drivers/infiniband/hw/mthca/mthca_catas.c index cc440f90000..65ad359fdf1 100644 --- a/drivers/infiniband/hw/mthca/mthca_catas.c +++ b/drivers/infiniband/hw/mthca/mthca_catas.c @@ -149,18 +149,10 @@ void mthca_start_catas_poll(struct mthca_dev *dev) ((pci_resource_len(dev->pdev, 0) - 1) & dev->catas_err.addr); - if (!request_mem_region(addr, dev->catas_err.size * 4, - DRV_NAME)) { - mthca_warn(dev, "couldn't request catastrophic error region " - "at 0x%lx/0x%x\n", addr, dev->catas_err.size * 4); - return; - } - dev->catas_err.map = ioremap(addr, dev->catas_err.size * 4); if (!dev->catas_err.map) { mthca_warn(dev, "couldn't map catastrophic error region " "at 0x%lx/0x%x\n", addr, dev->catas_err.size * 4); - release_mem_region(addr, dev->catas_err.size * 4); return; } @@ -175,13 +167,8 @@ void mthca_stop_catas_poll(struct mthca_dev *dev) { del_timer_sync(&dev->catas_err.timer); - if (dev->catas_err.map) { + if (dev->catas_err.map) iounmap(dev->catas_err.map); - release_mem_region(pci_resource_start(dev->pdev, 0) + - ((pci_resource_len(dev->pdev, 0) - 1) & - dev->catas_err.addr), - dev->catas_err.size * 4); - } spin_lock_irq(&catas_lock); list_del(&dev->catas_err.list); diff --git a/drivers/infiniband/hw/mthca/mthca_eq.c b/drivers/infiniband/hw/mthca/mthca_eq.c index cc6858f0b65..28f0e0c40d7 100644 --- a/drivers/infiniband/hw/mthca/mthca_eq.c +++ b/drivers/infiniband/hw/mthca/mthca_eq.c @@ -652,27 +652,13 @@ static int mthca_map_reg(struct mthca_dev *dev, { unsigned long base = pci_resource_start(dev->pdev, 0); - if (!request_mem_region(base + offset, size, DRV_NAME)) - return -EBUSY; - *map = ioremap(base + offset, size); - if (!*map) { - release_mem_region(base + offset, size); + if (!*map) return -ENOMEM; - } return 0; } -static void mthca_unmap_reg(struct mthca_dev *dev, unsigned long offset, - unsigned long size, void __iomem *map) -{ - unsigned long base = pci_resource_start(dev->pdev, 0); - - release_mem_region(base + offset, size); - iounmap(map); -} - static int mthca_map_eq_regs(struct mthca_dev *dev) { if (mthca_is_memfree(dev)) { @@ -699,9 +685,7 @@ static int mthca_map_eq_regs(struct mthca_dev *dev) dev->fw.arbel.eq_arm_base) + 4, 4, &dev->eq_regs.arbel.eq_arm)) { mthca_err(dev, "Couldn't map EQ arm register, aborting.\n"); - mthca_unmap_reg(dev, (pci_resource_len(dev->pdev, 0) - 1) & - dev->fw.arbel.clr_int_base, MTHCA_CLR_INT_SIZE, - dev->clr_base); + iounmap(dev->clr_base); return -ENOMEM; } @@ -710,12 +694,8 @@ static int mthca_map_eq_regs(struct mthca_dev *dev) MTHCA_EQ_SET_CI_SIZE, &dev->eq_regs.arbel.eq_set_ci_base)) { mthca_err(dev, "Couldn't map EQ CI register, aborting.\n"); - mthca_unmap_reg(dev, ((pci_resource_len(dev->pdev, 0) - 1) & - dev->fw.arbel.eq_arm_base) + 4, 4, - dev->eq_regs.arbel.eq_arm); - mthca_unmap_reg(dev, (pci_resource_len(dev->pdev, 0) - 1) & - dev->fw.arbel.clr_int_base, MTHCA_CLR_INT_SIZE, - dev->clr_base); + iounmap(dev->eq_regs.arbel.eq_arm); + iounmap(dev->clr_base); return -ENOMEM; } } else { @@ -731,8 +711,7 @@ static int mthca_map_eq_regs(struct mthca_dev *dev) &dev->eq_regs.tavor.ecr_base)) { mthca_err(dev, "Couldn't map ecr register, " "aborting.\n"); - mthca_unmap_reg(dev, MTHCA_CLR_INT_BASE, MTHCA_CLR_INT_SIZE, - dev->clr_base); + iounmap(dev->clr_base); return -ENOMEM; } } @@ -744,22 +723,12 @@ static int mthca_map_eq_regs(struct mthca_dev *dev) static void mthca_unmap_eq_regs(struct mthca_dev *dev) { if (mthca_is_memfree(dev)) { - mthca_unmap_reg(dev, (pci_resource_len(dev->pdev, 0) - 1) & - dev->fw.arbel.eq_set_ci_base, - MTHCA_EQ_SET_CI_SIZE, - dev->eq_regs.arbel.eq_set_ci_base); - mthca_unmap_reg(dev, ((pci_resource_len(dev->pdev, 0) - 1) & - dev->fw.arbel.eq_arm_base) + 4, 4, - dev->eq_regs.arbel.eq_arm); - mthca_unmap_reg(dev, (pci_resource_len(dev->pdev, 0) - 1) & - dev->fw.arbel.clr_int_base, MTHCA_CLR_INT_SIZE, - dev->clr_base); + iounmap(dev->eq_regs.arbel.eq_set_ci_base); + iounmap(dev->eq_regs.arbel.eq_arm); + iounmap(dev->clr_base); } else { - mthca_unmap_reg(dev, MTHCA_ECR_BASE, - MTHCA_ECR_SIZE + MTHCA_ECR_CLR_SIZE, - dev->eq_regs.tavor.ecr_base); - mthca_unmap_reg(dev, MTHCA_CLR_INT_BASE, MTHCA_CLR_INT_SIZE, - dev->clr_base); + iounmap(dev->eq_regs.tavor.ecr_base); + iounmap(dev->clr_base); } } diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c index fb9f91b60f3..52f60f4eea0 100644 --- a/drivers/infiniband/hw/mthca/mthca_main.c +++ b/drivers/infiniband/hw/mthca/mthca_main.c @@ -921,58 +921,6 @@ err_uar_table_free: return err; } -static int mthca_request_regions(struct pci_dev *pdev, int ddr_hidden) -{ - int err; - - /* - * We can't just use pci_request_regions() because the MSI-X - * table is right in the middle of the first BAR. If we did - * pci_request_region and grab all of the first BAR, then - * setting up MSI-X would fail, since the PCI core wants to do - * request_mem_region on the MSI-X vector table. - * - * So just request what we need right now, and request any - * other regions we need when setting up EQs. - */ - if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, - MTHCA_HCR_SIZE, DRV_NAME)) - return -EBUSY; - - err = pci_request_region(pdev, 2, DRV_NAME); - if (err) - goto err_bar2_failed; - - if (!ddr_hidden) { - err = pci_request_region(pdev, 4, DRV_NAME); - if (err) - goto err_bar4_failed; - } - - return 0; - -err_bar4_failed: - pci_release_region(pdev, 2); - -err_bar2_failed: - release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, - MTHCA_HCR_SIZE); - - return err; -} - -static void mthca_release_regions(struct pci_dev *pdev, - int ddr_hidden) -{ - if (!ddr_hidden) - pci_release_region(pdev, 4); - - pci_release_region(pdev, 2); - - release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, - MTHCA_HCR_SIZE); -} - static int mthca_enable_msi_x(struct mthca_dev *mdev) { struct msix_entry entries[3]; @@ -1059,7 +1007,7 @@ static int __mthca_init_one(struct pci_dev *pdev, int hca_type) if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM)) ddr_hidden = 1; - err = mthca_request_regions(pdev, ddr_hidden); + err = pci_request_regions(pdev, DRV_NAME); if (err) { dev_err(&pdev->dev, "Cannot obtain PCI resources, " "aborting.\n"); @@ -1196,7 +1144,7 @@ err_free_dev: ib_dealloc_device(&mdev->ib_dev); err_free_res: - mthca_release_regions(pdev, ddr_hidden); + pci_release_regions(pdev); err_disable_pdev: pci_disable_device(pdev); @@ -1240,8 +1188,7 @@ static void __mthca_remove_one(struct pci_dev *pdev) pci_disable_msix(pdev); ib_dealloc_device(&mdev->ib_dev); - mthca_release_regions(pdev, mdev->mthca_flags & - MTHCA_FLAG_DDR_HIDDEN); + pci_release_regions(pdev); pci_disable_device(pdev); pci_set_drvdata(pdev, NULL); } diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c index d79942e8497..932e56fcf77 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.c +++ b/drivers/infiniband/hw/nes/nes_verbs.c @@ -1467,7 +1467,6 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd, default: nes_debug(NES_DBG_QP, "Invalid QP type: %d\n", init_attr->qp_type); return ERR_PTR(-EINVAL); - break; } /* update the QP table */ @@ -2498,7 +2497,6 @@ static struct ib_mr *nes_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, nes_debug(NES_DBG_MR, "Leaving, ibmr=%p", ibmr); return ibmr; - break; case IWNES_MEMREG_TYPE_QP: case IWNES_MEMREG_TYPE_CQ: nespbl = kzalloc(sizeof(*nespbl), GFP_KERNEL); @@ -2572,7 +2570,6 @@ static struct ib_mr *nes_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, nesmr->ibmr.lkey = -1; nesmr->mode = req.reg_type; return &nesmr->ibmr; - break; } return ERR_PTR(-ENOSYS); diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h index 05eb41b8ab6..68ba5c3482e 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib.h +++ b/drivers/infiniband/ulp/ipoib/ipoib.h @@ -268,10 +268,9 @@ struct ipoib_lro { }; /* - * Device private locking: tx_lock protects members used in TX fast - * path (and we use LLTX so upper layers don't do extra locking). - * lock protects everything else. lock nests inside of tx_lock (ie - * tx_lock must be acquired first if needed). + * Device private locking: network stack tx_lock protects members used + * in TX fast path, lock protects everything else. lock nests inside + * of tx_lock (ie tx_lock must be acquired first if needed). */ struct ipoib_dev_priv { spinlock_t lock; @@ -320,7 +319,6 @@ struct ipoib_dev_priv { struct ipoib_rx_buf *rx_ring; - spinlock_t tx_lock; struct ipoib_tx_buf *tx_ring; unsigned tx_head; unsigned tx_tail; diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c index 341ffedafed..7b14c2c3950 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c @@ -786,7 +786,8 @@ void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) dev_kfree_skb_any(tx_req->skb); - spin_lock_irqsave(&priv->tx_lock, flags); + netif_tx_lock(dev); + ++tx->tx_tail; if (unlikely(--priv->tx_outstanding == ipoib_sendq_size >> 1) && netif_queue_stopped(dev) && @@ -801,7 +802,7 @@ void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) "(status=%d, wrid=%d vend_err %x)\n", wc->status, wr_id, wc->vendor_err); - spin_lock(&priv->lock); + spin_lock_irqsave(&priv->lock, flags); neigh = tx->neigh; if (neigh) { @@ -821,10 +822,10 @@ void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) clear_bit(IPOIB_FLAG_OPER_UP, &tx->flags); - spin_unlock(&priv->lock); + spin_unlock_irqrestore(&priv->lock, flags); } - spin_unlock_irqrestore(&priv->tx_lock, flags); + netif_tx_unlock(dev); } int ipoib_cm_dev_open(struct net_device *dev) @@ -1149,7 +1150,6 @@ static void ipoib_cm_tx_destroy(struct ipoib_cm_tx *p) { struct ipoib_dev_priv *priv = netdev_priv(p->dev); struct ipoib_cm_tx_buf *tx_req; - unsigned long flags; unsigned long begin; ipoib_dbg(priv, "Destroy active connection 0x%x head 0x%x tail 0x%x\n", @@ -1180,12 +1180,12 @@ timeout: DMA_TO_DEVICE); dev_kfree_skb_any(tx_req->skb); ++p->tx_tail; - spin_lock_irqsave(&priv->tx_lock, flags); + netif_tx_lock_bh(p->dev); if (unlikely(--priv->tx_outstanding == ipoib_sendq_size >> 1) && netif_queue_stopped(p->dev) && test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags)) netif_wake_queue(p->dev); - spin_unlock_irqrestore(&priv->tx_lock, flags); + netif_tx_unlock_bh(p->dev); } if (p->qp) @@ -1202,6 +1202,7 @@ static int ipoib_cm_tx_handler(struct ib_cm_id *cm_id, struct ipoib_dev_priv *priv = netdev_priv(tx->dev); struct net_device *dev = priv->dev; struct ipoib_neigh *neigh; + unsigned long flags; int ret; switch (event->event) { @@ -1220,8 +1221,8 @@ static int ipoib_cm_tx_handler(struct ib_cm_id *cm_id, case IB_CM_REJ_RECEIVED: case IB_CM_TIMEWAIT_EXIT: ipoib_dbg(priv, "CM error %d.\n", event->event); - spin_lock_irq(&priv->tx_lock); - spin_lock(&priv->lock); + netif_tx_lock_bh(dev); + spin_lock_irqsave(&priv->lock, flags); neigh = tx->neigh; if (neigh) { @@ -1239,8 +1240,8 @@ static int ipoib_cm_tx_handler(struct ib_cm_id *cm_id, queue_work(ipoib_workqueue, &priv->cm.reap_task); } - spin_unlock(&priv->lock); - spin_unlock_irq(&priv->tx_lock); + spin_unlock_irqrestore(&priv->lock, flags); + netif_tx_unlock_bh(dev); break; default: break; @@ -1294,19 +1295,24 @@ static void ipoib_cm_tx_start(struct work_struct *work) struct ib_sa_path_rec pathrec; u32 qpn; - spin_lock_irqsave(&priv->tx_lock, flags); - spin_lock(&priv->lock); + netif_tx_lock_bh(dev); + spin_lock_irqsave(&priv->lock, flags); + while (!list_empty(&priv->cm.start_list)) { p = list_entry(priv->cm.start_list.next, typeof(*p), list); list_del_init(&p->list); neigh = p->neigh; qpn = IPOIB_QPN(neigh->neighbour->ha); memcpy(&pathrec, &p->path->pathrec, sizeof pathrec); - spin_unlock(&priv->lock); - spin_unlock_irqrestore(&priv->tx_lock, flags); + + spin_unlock_irqrestore(&priv->lock, flags); + netif_tx_unlock_bh(dev); + ret = ipoib_cm_tx_init(p, qpn, &pathrec); - spin_lock_irqsave(&priv->tx_lock, flags); - spin_lock(&priv->lock); + + netif_tx_lock_bh(dev); + spin_lock_irqsave(&priv->lock, flags); + if (ret) { neigh = p->neigh; if (neigh) { @@ -1320,44 +1326,52 @@ static void ipoib_cm_tx_start(struct work_struct *work) kfree(p); } } - spin_unlock(&priv->lock); - spin_unlock_irqrestore(&priv->tx_lock, flags); + + spin_unlock_irqrestore(&priv->lock, flags); + netif_tx_unlock_bh(dev); } static void ipoib_cm_tx_reap(struct work_struct *work) { struct ipoib_dev_priv *priv = container_of(work, struct ipoib_dev_priv, cm.reap_task); + struct net_device *dev = priv->dev; struct ipoib_cm_tx *p; + unsigned long flags; + + netif_tx_lock_bh(dev); + spin_lock_irqsave(&priv->lock, flags); - spin_lock_irq(&priv->tx_lock); - spin_lock(&priv->lock); while (!list_empty(&priv->cm.reap_list)) { p = list_entry(priv->cm.reap_list.next, typeof(*p), list); list_del(&p->list); - spin_unlock(&priv->lock); - spin_unlock_irq(&priv->tx_lock); + spin_unlock_irqrestore(&priv->lock, flags); + netif_tx_unlock_bh(dev); ipoib_cm_tx_destroy(p); - spin_lock_irq(&priv->tx_lock); - spin_lock(&priv->lock); + netif_tx_lock_bh(dev); + spin_lock_irqsave(&priv->lock, flags); } - spin_unlock(&priv->lock); - spin_unlock_irq(&priv->tx_lock); + + spin_unlock_irqrestore(&priv->lock, flags); + netif_tx_unlock_bh(dev); } static void ipoib_cm_skb_reap(struct work_struct *work) { struct ipoib_dev_priv *priv = container_of(work, struct ipoib_dev_priv, cm.skb_task); + struct net_device *dev = priv->dev; struct sk_buff *skb; - + unsigned long flags; unsigned mtu = priv->mcast_mtu; - spin_lock_irq(&priv->tx_lock); - spin_lock(&priv->lock); + netif_tx_lock_bh(dev); + spin_lock_irqsave(&priv->lock, flags); + while ((skb = skb_dequeue(&priv->cm.skb_queue))) { - spin_unlock(&priv->lock); - spin_unlock_irq(&priv->tx_lock); + spin_unlock_irqrestore(&priv->lock, flags); + netif_tx_unlock_bh(dev); + if (skb->protocol == htons(ETH_P_IP)) icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED, htonl(mtu)); #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) @@ -1365,11 +1379,13 @@ static void ipoib_cm_skb_reap(struct work_struct *work) icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, priv->dev); #endif dev_kfree_skb_any(skb); - spin_lock_irq(&priv->tx_lock); - spin_lock(&priv->lock); + + netif_tx_lock_bh(dev); + spin_lock_irqsave(&priv->lock, flags); } - spin_unlock(&priv->lock); - spin_unlock_irq(&priv->tx_lock); + + spin_unlock_irqrestore(&priv->lock, flags); + netif_tx_unlock_bh(dev); } void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c index 66cafa20c24..0e748aeeae9 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c @@ -468,21 +468,22 @@ void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr) static void drain_tx_cq(struct net_device *dev) { struct ipoib_dev_priv *priv = netdev_priv(dev); - unsigned long flags; - spin_lock_irqsave(&priv->tx_lock, flags); + netif_tx_lock(dev); while (poll_tx(priv)) ; /* nothing */ if (netif_queue_stopped(dev)) mod_timer(&priv->poll_timer, jiffies + 1); - spin_unlock_irqrestore(&priv->tx_lock, flags); + netif_tx_unlock(dev); } void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr) { - drain_tx_cq((struct net_device *)dev_ptr); + struct ipoib_dev_priv *priv = netdev_priv(dev_ptr); + + mod_timer(&priv->poll_timer, jiffies); } static inline int post_send(struct ipoib_dev_priv *priv, @@ -614,17 +615,20 @@ static void __ipoib_reap_ah(struct net_device *dev) struct ipoib_dev_priv *priv = netdev_priv(dev); struct ipoib_ah *ah, *tah; LIST_HEAD(remove_list); + unsigned long flags; + + netif_tx_lock_bh(dev); + spin_lock_irqsave(&priv->lock, flags); - spin_lock_irq(&priv->tx_lock); - spin_lock(&priv->lock); list_for_each_entry_safe(ah, tah, &priv->dead_ahs, list) if ((int) priv->tx_tail - (int) ah->last_send >= 0) { list_del(&ah->list); ib_destroy_ah(ah->ah); kfree(ah); } - spin_unlock(&priv->lock); - spin_unlock_irq(&priv->tx_lock); + + spin_unlock_irqrestore(&priv->lock, flags); + netif_tx_unlock_bh(dev); } void ipoib_reap_ah(struct work_struct *work) @@ -761,6 +765,14 @@ void ipoib_drain_cq(struct net_device *dev) { struct ipoib_dev_priv *priv = netdev_priv(dev); int i, n; + + /* + * We call completion handling routines that expect to be + * called from the BH-disabled NAPI poll context, so disable + * BHs here too. + */ + local_bh_disable(); + do { n = ib_poll_cq(priv->recv_cq, IPOIB_NUM_WC, priv->ibwc); for (i = 0; i < n; ++i) { @@ -784,6 +796,8 @@ void ipoib_drain_cq(struct net_device *dev) while (poll_tx(priv)) ; /* nothing */ + + local_bh_enable(); } int ipoib_ib_dev_stop(struct net_device *dev, int flush) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 1b1df5cc411..c0ee514396d 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -373,9 +373,10 @@ void ipoib_flush_paths(struct net_device *dev) struct ipoib_dev_priv *priv = netdev_priv(dev); struct ipoib_path *path, *tp; LIST_HEAD(remove_list); + unsigned long flags; - spin_lock_irq(&priv->tx_lock); - spin_lock(&priv->lock); + netif_tx_lock_bh(dev); + spin_lock_irqsave(&priv->lock, flags); list_splice_init(&priv->path_list, &remove_list); @@ -385,15 +386,16 @@ void ipoib_flush_paths(struct net_device *dev) list_for_each_entry_safe(path, tp, &remove_list, list) { if (path->query) ib_sa_cancel_query(path->query_id, path->query); - spin_unlock(&priv->lock); - spin_unlock_irq(&priv->tx_lock); + spin_unlock_irqrestore(&priv->lock, flags); + netif_tx_unlock_bh(dev); wait_for_completion(&path->done); path_free(dev, path); - spin_lock_irq(&priv->tx_lock); - spin_lock(&priv->lock); + netif_tx_lock_bh(dev); + spin_lock_irqsave(&priv->lock, flags); } - spin_unlock(&priv->lock); - spin_unlock_irq(&priv->tx_lock); + + spin_unlock_irqrestore(&priv->lock, flags); + netif_tx_unlock_bh(dev); } static void path_rec_completion(int status, @@ -404,7 +406,7 @@ static void path_rec_completion(int status, struct net_device *dev = path->dev; struct ipoib_dev_priv *priv = netdev_priv(dev); struct ipoib_ah *ah = NULL; - struct ipoib_ah *old_ah; + struct ipoib_ah *old_ah = NULL; struct ipoib_neigh *neigh, *tn; struct sk_buff_head skqueue; struct sk_buff *skb; @@ -428,12 +430,12 @@ static void path_rec_completion(int status, spin_lock_irqsave(&priv->lock, flags); - old_ah = path->ah; - path->ah = ah; - if (ah) { path->pathrec = *pathrec; + old_ah = path->ah; + path->ah = ah; + ipoib_dbg(priv, "created address handle %p for LID 0x%04x, SL %d\n", ah, be16_to_cpu(pathrec->dlid), pathrec->sl); @@ -555,6 +557,7 @@ static void neigh_add_path(struct sk_buff *skb, struct net_device *dev) struct ipoib_dev_priv *priv = netdev_priv(dev); struct ipoib_path *path; struct ipoib_neigh *neigh; + unsigned long flags; neigh = ipoib_neigh_alloc(skb->dst->neighbour, skb->dev); if (!neigh) { @@ -563,11 +566,7 @@ static void neigh_add_path(struct sk_buff *skb, struct net_device *dev) return; } - /* - * We can only be called from ipoib_start_xmit, so we're - * inside tx_lock -- no need to save/restore flags. - */ - spin_lock(&priv->lock); + spin_lock_irqsave(&priv->lock, flags); path = __path_find(dev, skb->dst->neighbour->ha + 4); if (!path) { @@ -614,7 +613,7 @@ static void neigh_add_path(struct sk_buff *skb, struct net_device *dev) __skb_queue_tail(&neigh->queue, skb); } - spin_unlock(&priv->lock); + spin_unlock_irqrestore(&priv->lock, flags); return; err_list: @@ -626,7 +625,7 @@ err_drop: ++dev->stats.tx_dropped; dev_kfree_skb_any(skb); - spin_unlock(&priv->lock); + spin_unlock_irqrestore(&priv->lock, flags); } static void ipoib_path_lookup(struct sk_buff *skb, struct net_device *dev) @@ -650,12 +649,9 @@ static void unicast_arp_send(struct sk_buff *skb, struct net_device *dev, { struct ipoib_dev_priv *priv = netdev_priv(dev); struct ipoib_path *path; + unsigned long flags; - /* - * We can only be called from ipoib_start_xmit, so we're - * inside tx_lock -- no need to save/restore flags. - */ - spin_lock(&priv->lock); + spin_lock_irqsave(&priv->lock, flags); path = __path_find(dev, phdr->hwaddr + 4); if (!path || !path->valid) { @@ -667,7 +663,7 @@ static void unicast_arp_send(struct sk_buff *skb, struct net_device *dev, __skb_queue_tail(&path->queue, skb); if (path_rec_start(dev, path)) { - spin_unlock(&priv->lock); + spin_unlock_irqrestore(&priv->lock, flags); path_free(dev, path); return; } else @@ -677,7 +673,7 @@ static void unicast_arp_send(struct sk_buff *skb, struct net_device *dev, dev_kfree_skb_any(skb); } - spin_unlock(&priv->lock); + spin_unlock_irqrestore(&priv->lock, flags); return; } @@ -696,7 +692,7 @@ static void unicast_arp_send(struct sk_buff *skb, struct net_device *dev, dev_kfree_skb_any(skb); } - spin_unlock(&priv->lock); + spin_unlock_irqrestore(&priv->lock, flags); } static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev) @@ -705,13 +701,10 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev) struct ipoib_neigh *neigh; unsigned long flags; - if (unlikely(!spin_trylock_irqsave(&priv->tx_lock, flags))) - return NETDEV_TX_LOCKED; - if (likely(skb->dst && skb->dst->neighbour)) { if (unlikely(!*to_ipoib_neigh(skb->dst->neighbour))) { ipoib_path_lookup(skb, dev); - goto out; + return NETDEV_TX_OK; } neigh = *to_ipoib_neigh(skb->dst->neighbour); @@ -721,7 +714,7 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev) skb->dst->neighbour->ha + 4, sizeof(union ib_gid))) || (neigh->dev != dev))) { - spin_lock(&priv->lock); + spin_lock_irqsave(&priv->lock, flags); /* * It's safe to call ipoib_put_ah() inside * priv->lock here, because we know that @@ -732,25 +725,25 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev) ipoib_put_ah(neigh->ah); list_del(&neigh->list); ipoib_neigh_free(dev, neigh); - spin_unlock(&priv->lock); + spin_unlock_irqrestore(&priv->lock, flags); ipoib_path_lookup(skb, dev); - goto out; + return NETDEV_TX_OK; } if (ipoib_cm_get(neigh)) { if (ipoib_cm_up(neigh)) { ipoib_cm_send(dev, skb, ipoib_cm_get(neigh)); - goto out; + return NETDEV_TX_OK; } } else if (neigh->ah) { ipoib_send(dev, skb, neigh->ah, IPOIB_QPN(skb->dst->neighbour->ha)); - goto out; + return NETDEV_TX_OK; } if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE) { - spin_lock(&priv->lock); + spin_lock_irqsave(&priv->lock, flags); __skb_queue_tail(&neigh->queue, skb); - spin_unlock(&priv->lock); + spin_unlock_irqrestore(&priv->lock, flags); } else { ++dev->stats.tx_dropped; dev_kfree_skb_any(skb); @@ -779,16 +772,13 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev) IPOIB_GID_RAW_ARG(phdr->hwaddr + 4)); dev_kfree_skb_any(skb); ++dev->stats.tx_dropped; - goto out; + return NETDEV_TX_OK; } unicast_arp_send(skb, dev, phdr); } } -out: - spin_unlock_irqrestore(&priv->tx_lock, flags); - return NETDEV_TX_OK; } @@ -1052,7 +1042,6 @@ static void ipoib_setup(struct net_device *dev) dev->type = ARPHRD_INFINIBAND; dev->tx_queue_len = ipoib_sendq_size * 2; dev->features = (NETIF_F_VLAN_CHALLENGED | - NETIF_F_LLTX | NETIF_F_HIGHDMA); memcpy(dev->broadcast, ipv4_bcast_addr, INFINIBAND_ALEN); @@ -1064,7 +1053,6 @@ static void ipoib_setup(struct net_device *dev) ipoib_lro_setup(priv); spin_lock_init(&priv->lock); - spin_lock_init(&priv->tx_lock); mutex_init(&priv->vlan_mutex); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index aae28620a6e..d9d1223c3fd 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -69,14 +69,13 @@ static void ipoib_mcast_free(struct ipoib_mcast *mcast) struct net_device *dev = mcast->dev; struct ipoib_dev_priv *priv = netdev_priv(dev); struct ipoib_neigh *neigh, *tmp; - unsigned long flags; int tx_dropped = 0; ipoib_dbg_mcast(netdev_priv(dev), "deleting multicast group " IPOIB_GID_FMT "\n", IPOIB_GID_ARG(mcast->mcmember.mgid)); - spin_lock_irqsave(&priv->lock, flags); + spin_lock_irq(&priv->lock); list_for_each_entry_safe(neigh, tmp, &mcast->neigh_list, list) { /* @@ -90,7 +89,7 @@ static void ipoib_mcast_free(struct ipoib_mcast *mcast) ipoib_neigh_free(dev, neigh); } - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock_irq(&priv->lock); if (mcast->ah) ipoib_put_ah(mcast->ah); @@ -100,9 +99,9 @@ static void ipoib_mcast_free(struct ipoib_mcast *mcast) dev_kfree_skb_any(skb_dequeue(&mcast->pkt_queue)); } - spin_lock_irqsave(&priv->tx_lock, flags); + netif_tx_lock_bh(dev); dev->stats.tx_dropped += tx_dropped; - spin_unlock_irqrestore(&priv->tx_lock, flags); + netif_tx_unlock_bh(dev); kfree(mcast); } @@ -259,10 +258,10 @@ static int ipoib_mcast_join_finish(struct ipoib_mcast *mcast, } /* actually send any queued packets */ - spin_lock_irq(&priv->tx_lock); + netif_tx_lock_bh(dev); while (!skb_queue_empty(&mcast->pkt_queue)) { struct sk_buff *skb = skb_dequeue(&mcast->pkt_queue); - spin_unlock_irq(&priv->tx_lock); + netif_tx_unlock_bh(dev); skb->dev = dev; @@ -273,9 +272,9 @@ static int ipoib_mcast_join_finish(struct ipoib_mcast *mcast, if (dev_queue_xmit(skb)) ipoib_warn(priv, "dev_queue_xmit failed to requeue packet\n"); - spin_lock_irq(&priv->tx_lock); + netif_tx_lock_bh(dev); } - spin_unlock_irq(&priv->tx_lock); + netif_tx_unlock_bh(dev); return 0; } @@ -286,7 +285,6 @@ ipoib_mcast_sendonly_join_complete(int status, { struct ipoib_mcast *mcast = multicast->context; struct net_device *dev = mcast->dev; - struct ipoib_dev_priv *priv = netdev_priv(dev); /* We trap for port events ourselves. */ if (status == -ENETRESET) @@ -302,12 +300,12 @@ ipoib_mcast_sendonly_join_complete(int status, IPOIB_GID_ARG(mcast->mcmember.mgid), status); /* Flush out any queued packets */ - spin_lock_irq(&priv->tx_lock); + netif_tx_lock_bh(dev); while (!skb_queue_empty(&mcast->pkt_queue)) { ++dev->stats.tx_dropped; dev_kfree_skb_any(skb_dequeue(&mcast->pkt_queue)); } - spin_unlock_irq(&priv->tx_lock); + netif_tx_unlock_bh(dev); /* Clear the busy flag so we try again */ status = test_and_clear_bit(IPOIB_MCAST_FLAG_BUSY, @@ -662,12 +660,9 @@ void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb) { struct ipoib_dev_priv *priv = netdev_priv(dev); struct ipoib_mcast *mcast; + unsigned long flags; - /* - * We can only be called from ipoib_start_xmit, so we're - * inside tx_lock -- no need to save/restore flags. - */ - spin_lock(&priv->lock); + spin_lock_irqsave(&priv->lock, flags); if (!test_bit(IPOIB_FLAG_OPER_UP, &priv->flags) || !priv->broadcast || @@ -738,7 +733,7 @@ out: } unlock: - spin_unlock(&priv->lock); + spin_unlock_irqrestore(&priv->lock, flags); } void ipoib_mcast_dev_flush(struct net_device *dev) |