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Message-ID: <1474899407-12635-12-git-send-email-Ram.Amrani@cavium.com>
Date: Mon, 26 Sep 2016 17:16:47 +0300
From: Ram Amrani <Ram.Amrani@...ium.com>
To: <davem@...emloft.net>, <dledford@...hat.com>
CC: <Ariel.Elior@...ium.com>, <Michal.Kalderon@...ium.com>,
<Yuval.Mintz@...ium.com>, <rajesh.borundia@...ium.com>,
<linux-rdma@...r.kernel.org>, <netdev@...r.kernel.org>,
Ram Amrani <Ram.Amrani@...ium.com>
Subject: [PATCH 11/11] qedr: Add events support and register IB device
Add error handling support.
Register ib device with ib stack.
Signed-off-by: Rajesh Borundia <rajesh.borundia@...ium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@...ium.com>
---
drivers/infiniband/hw/qedr/main.c | 114 ++++++++++++++++++++++++++++++++++++-
drivers/infiniband/hw/qedr/verbs.c | 37 ++++++++++++
drivers/infiniband/hw/qedr/verbs.h | 9 +++
include/linux/qed/common_hsi.h | 1 +
4 files changed, 159 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/hw/qedr/main.c b/drivers/infiniband/hw/qedr/main.c
index 735bc70..fc2afd0 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;
@@ -151,11 +166,15 @@ 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 */
@@ -530,6 +549,92 @@ 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)
{
@@ -559,6 +664,8 @@ 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;
@@ -657,11 +764,13 @@ 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:
@@ -681,6 +790,7 @@ 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 9f0a72f..36424ec 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -3522,3 +3522,40 @@ 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 9760fd1..89c21a9 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
diff --git a/include/linux/qed/common_hsi.h b/include/linux/qed/common_hsi.h
index 1902763..734deb0 100644
--- a/include/linux/qed/common_hsi.h
+++ b/include/linux/qed/common_hsi.h
@@ -674,6 +674,7 @@ union event_ring_data {
struct iscsi_eqe_data iscsi_info;
struct malicious_vf_eqe_data malicious_vf;
struct initial_cleanup_eqe_data vf_init_cleanup;
+ struct regpair roce_handle;
};
/* Event Ring Entry */
--
1.8.3.1
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