From 993d1b52615e1a549e55875c3b74308391672d9f Mon Sep 17 00:00:00 2001 From: Ram Amrani Date: Mon, 10 Oct 2016 13:15:39 +0300 Subject: [PATCH] qedr: Add events support and register IB device Add error handling support. Register ib device with ib stack. Signed-off-by: Rajesh Borundia Signed-off-by: Ram Amrani Signed-off-by: Doug Ledford --- drivers/infiniband/hw/qedr/main.c | 114 ++++++++++++++++++++++++++++- drivers/infiniband/hw/qedr/verbs.c | 37 ++++++++++ drivers/infiniband/hw/qedr/verbs.h | 9 +++ 3 files changed, 158 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/qedr/main.c b/drivers/infiniband/hw/qedr/main.c index 42dff48a3171..7b74d09a8217 100644 --- a/drivers/infiniband/hw/qedr/main.c +++ b/drivers/infiniband/hw/qedr/main.c @@ -79,10 +79,25 @@ static void qedr_get_dev_fw_str(struct ib_device *ibdev, char *str, (fw_ver >> 8) & 0xFF, fw_ver & 0xFF); } +static struct net_device *qedr_get_netdev(struct ib_device *dev, u8 port_num) +{ + struct qedr_dev *qdev; + + qdev = get_qedr_dev(dev); + dev_hold(qdev->ndev); + + /* The HW vendor's device driver must guarantee + * that this function returns NULL before the net device reaches + * NETDEV_UNREGISTER_FINAL state. + */ + return qdev->ndev; +} + static int qedr_register_device(struct qedr_dev *dev) { strlcpy(dev->ibdev.name, "qedr%d", IB_DEVICE_NAME_MAX); + dev->ibdev.node_guid = dev->attr.node_guid; memcpy(dev->ibdev.node_desc, QEDR_NODE_DESC, sizeof(QEDR_NODE_DESC)); dev->ibdev.owner = THIS_MODULE; dev->ibdev.uverbs_abi_ver = QEDR_ABI_VERSION; @@ -151,12 +166,16 @@ static int qedr_register_device(struct qedr_dev *dev) dev->ibdev.post_send = qedr_post_send; dev->ibdev.post_recv = qedr_post_recv; + dev->ibdev.process_mad = qedr_process_mad; + dev->ibdev.get_port_immutable = qedr_port_immutable; + dev->ibdev.get_netdev = qedr_get_netdev; + dev->ibdev.dma_device = &dev->pdev->dev; dev->ibdev.get_link_layer = qedr_link_layer; dev->ibdev.get_dev_fw_str = qedr_get_dev_fw_str; - return 0; + return ib_register_device(&dev->ibdev, NULL); } /* This function allocates fast-path status block memory */ @@ -557,6 +576,92 @@ static int qedr_set_device_attr(struct qedr_dev *dev) return 0; } +void qedr_unaffiliated_event(void *context, + u8 event_code) +{ + pr_err("unaffiliated event not implemented yet\n"); +} + +void qedr_affiliated_event(void *context, u8 e_code, void *fw_handle) +{ +#define EVENT_TYPE_NOT_DEFINED 0 +#define EVENT_TYPE_CQ 1 +#define EVENT_TYPE_QP 2 + struct qedr_dev *dev = (struct qedr_dev *)context; + union event_ring_data *data = fw_handle; + u64 roce_handle64 = ((u64)data->roce_handle.hi << 32) + + data->roce_handle.lo; + u8 event_type = EVENT_TYPE_NOT_DEFINED; + struct ib_event event; + struct ib_cq *ibcq; + struct ib_qp *ibqp; + struct qedr_cq *cq; + struct qedr_qp *qp; + + switch (e_code) { + case ROCE_ASYNC_EVENT_CQ_OVERFLOW_ERR: + event.event = IB_EVENT_CQ_ERR; + event_type = EVENT_TYPE_CQ; + break; + case ROCE_ASYNC_EVENT_SQ_DRAINED: + event.event = IB_EVENT_SQ_DRAINED; + event_type = EVENT_TYPE_QP; + break; + case ROCE_ASYNC_EVENT_QP_CATASTROPHIC_ERR: + event.event = IB_EVENT_QP_FATAL; + event_type = EVENT_TYPE_QP; + break; + case ROCE_ASYNC_EVENT_LOCAL_INVALID_REQUEST_ERR: + event.event = IB_EVENT_QP_REQ_ERR; + event_type = EVENT_TYPE_QP; + break; + case ROCE_ASYNC_EVENT_LOCAL_ACCESS_ERR: + event.event = IB_EVENT_QP_ACCESS_ERR; + event_type = EVENT_TYPE_QP; + break; + default: + DP_ERR(dev, "unsupported event %d on handle=%llx\n", e_code, + roce_handle64); + } + + switch (event_type) { + case EVENT_TYPE_CQ: + cq = (struct qedr_cq *)(uintptr_t)roce_handle64; + if (cq) { + ibcq = &cq->ibcq; + if (ibcq->event_handler) { + event.device = ibcq->device; + event.element.cq = ibcq; + ibcq->event_handler(&event, ibcq->cq_context); + } + } else { + WARN(1, + "Error: CQ event with NULL pointer ibcq. Handle=%llx\n", + roce_handle64); + } + DP_ERR(dev, "CQ event %d on hanlde %p\n", e_code, cq); + break; + case EVENT_TYPE_QP: + qp = (struct qedr_qp *)(uintptr_t)roce_handle64; + if (qp) { + ibqp = &qp->ibqp; + if (ibqp->event_handler) { + event.device = ibqp->device; + event.element.qp = ibqp; + ibqp->event_handler(&event, ibqp->qp_context); + } + } else { + WARN(1, + "Error: QP event with NULL pointer ibqp. Handle=%llx\n", + roce_handle64); + } + DP_ERR(dev, "QP event %d on hanlde %p\n", e_code, qp); + break; + default: + break; + } +} + static int qedr_init_hw(struct qedr_dev *dev) { struct qed_rdma_add_user_out_params out_params; @@ -585,6 +690,8 @@ static int qedr_init_hw(struct qedr_dev *dev) cur_pbl->pbl_ptr = (u64)p_phys_table; } + events.affiliated_event = qedr_affiliated_event; + events.unaffiliated_event = qedr_unaffiliated_event; events.context = dev; in_params->events = &events; @@ -683,11 +790,13 @@ static struct qedr_dev *qedr_add(struct qed_dev *cdev, struct pci_dev *pdev, for (i = 0; i < ARRAY_SIZE(qedr_attributes); i++) if (device_create_file(&dev->ibdev.dev, qedr_attributes[i])) - goto reg_err; + goto sysfs_err; DP_DEBUG(dev, QEDR_MSG_INIT, "qedr driver loaded successfully\n"); return dev; +sysfs_err: + ib_unregister_device(&dev->ibdev); reg_err: qedr_sync_free_irqs(dev); irq_err: @@ -707,6 +816,7 @@ static void qedr_remove(struct qedr_dev *dev) * of the registered clients. */ qedr_remove_sysfiles(dev); + ib_unregister_device(&dev->ibdev); qedr_stop_hw(dev); qedr_sync_free_irqs(dev); diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c index 44ad6ae036c9..a61514296767 100644 --- a/drivers/infiniband/hw/qedr/verbs.c +++ b/drivers/infiniband/hw/qedr/verbs.c @@ -3508,3 +3508,40 @@ int qedr_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc) spin_unlock_irqrestore(&cq->cq_lock, flags); return done; } + +int qedr_process_mad(struct ib_device *ibdev, int process_mad_flags, + u8 port_num, + const struct ib_wc *in_wc, + const struct ib_grh *in_grh, + const struct ib_mad_hdr *mad_hdr, + size_t in_mad_size, struct ib_mad_hdr *out_mad, + size_t *out_mad_size, u16 *out_mad_pkey_index) +{ + struct qedr_dev *dev = get_qedr_dev(ibdev); + + DP_DEBUG(dev, QEDR_MSG_GSI, + "QEDR_PROCESS_MAD in_mad %x %x %x %x %x %x %x %x\n", + mad_hdr->attr_id, mad_hdr->base_version, mad_hdr->attr_mod, + mad_hdr->class_specific, mad_hdr->class_version, + mad_hdr->method, mad_hdr->mgmt_class, mad_hdr->status); + return IB_MAD_RESULT_SUCCESS; +} + +int qedr_port_immutable(struct ib_device *ibdev, u8 port_num, + struct ib_port_immutable *immutable) +{ + struct ib_port_attr attr; + int err; + + err = qedr_query_port(ibdev, port_num, &attr); + if (err) + return err; + + immutable->pkey_tbl_len = attr.pkey_tbl_len; + immutable->gid_tbl_len = attr.gid_tbl_len; + immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE | + RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP; + immutable->max_mad_size = IB_MGMT_MAD_SIZE; + + return 0; +} diff --git a/drivers/infiniband/hw/qedr/verbs.h b/drivers/infiniband/hw/qedr/verbs.h index fbc6db5a5e1f..a9b5e67bb81e 100644 --- a/drivers/infiniband/hw/qedr/verbs.h +++ b/drivers/infiniband/hw/qedr/verbs.h @@ -89,4 +89,13 @@ int qedr_post_send(struct ib_qp *, struct ib_send_wr *, struct ib_send_wr **bad_wr); int qedr_post_recv(struct ib_qp *, struct ib_recv_wr *, struct ib_recv_wr **bad_wr); +int qedr_process_mad(struct ib_device *ibdev, int process_mad_flags, + u8 port_num, const struct ib_wc *in_wc, + const struct ib_grh *in_grh, + const struct ib_mad_hdr *in_mad, + size_t in_mad_size, struct ib_mad_hdr *out_mad, + size_t *out_mad_size, u16 *out_mad_pkey_index); + +int qedr_port_immutable(struct ib_device *ibdev, u8 port_num, + struct ib_port_immutable *immutable); #endif