From e6a38c54faf38498170e227c82ea25cb8bc1ae71 Mon Sep 17 00:00:00 2001 From: "Kalderon, Michal" Date: Wed, 26 Jul 2017 14:41:52 +0300 Subject: [PATCH] RDMA/qedr: Add support for registering an iWARP device There are slight differences between iWARP and RoCE in the ibdev registration. This patch handles the changes. Signed-off-by: Michal Kalderon Signed-off-by: Ram Amrani Signed-off-by: Ariel Elior Signed-off-by: Doug Ledford --- drivers/infiniband/hw/qedr/main.c | 84 +++++++++++++++++++++++++++++++++++--- drivers/infiniband/hw/qedr/qedr.h | 3 ++ drivers/infiniband/hw/qedr/verbs.c | 34 +++++++-------- drivers/infiniband/hw/qedr/verbs.h | 2 + 4 files changed, 97 insertions(+), 26 deletions(-) diff --git a/drivers/infiniband/hw/qedr/main.c b/drivers/infiniband/hw/qedr/main.c index b5851fd67d4f..ad227b5c0c43 100644 --- a/drivers/infiniband/hw/qedr/main.c +++ b/drivers/infiniband/hw/qedr/main.c @@ -33,6 +33,8 @@ #include #include #include +#include +#include #include #include #include @@ -94,8 +96,75 @@ static struct net_device *qedr_get_netdev(struct ib_device *dev, u8 port_num) return qdev->ndev; } +int qedr_roce_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; +} + +int qedr_iw_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 = 1; + immutable->gid_tbl_len = 1; + immutable->core_cap_flags = RDMA_CORE_PORT_IWARP; + immutable->max_mad_size = 0; + + return 0; +} + +int qedr_iw_register_device(struct qedr_dev *dev) +{ + dev->ibdev.node_type = RDMA_NODE_RNIC; + dev->ibdev.query_gid = qedr_iw_query_gid; + + dev->ibdev.get_port_immutable = qedr_iw_port_immutable; + + dev->ibdev.iwcm = kzalloc(sizeof(*dev->ibdev.iwcm), GFP_KERNEL); + if (!dev->ibdev.iwcm) + return -ENOMEM; + + memcpy(dev->ibdev.iwcm->ifname, + dev->ndev->name, sizeof(dev->ibdev.iwcm->ifname)); + + return 0; +} + +void qedr_roce_register_device(struct qedr_dev *dev) +{ + dev->ibdev.node_type = RDMA_NODE_IB_CA; + dev->ibdev.query_gid = qedr_query_gid; + + dev->ibdev.add_gid = qedr_add_gid; + dev->ibdev.del_gid = qedr_del_gid; + + dev->ibdev.get_port_immutable = qedr_roce_port_immutable; +} + static int qedr_register_device(struct qedr_dev *dev) { + int rc; + strlcpy(dev->ibdev.name, "qedr%d", IB_DEVICE_NAME_MAX); dev->ibdev.node_guid = dev->attr.node_guid; @@ -123,18 +192,21 @@ static int qedr_register_device(struct qedr_dev *dev) QEDR_UVERBS(POST_SEND) | QEDR_UVERBS(POST_RECV); + if (IS_IWARP(dev)) { + rc = qedr_iw_register_device(dev); + if (rc) + return rc; + } else { + qedr_roce_register_device(dev); + } + dev->ibdev.phys_port_cnt = 1; dev->ibdev.num_comp_vectors = dev->num_cnq; - dev->ibdev.node_type = RDMA_NODE_IB_CA; dev->ibdev.query_device = qedr_query_device; dev->ibdev.query_port = qedr_query_port; dev->ibdev.modify_port = qedr_modify_port; - dev->ibdev.query_gid = qedr_query_gid; - dev->ibdev.add_gid = qedr_add_gid; - dev->ibdev.del_gid = qedr_del_gid; - dev->ibdev.alloc_ucontext = qedr_alloc_ucontext; dev->ibdev.dealloc_ucontext = qedr_dealloc_ucontext; dev->ibdev.mmap = qedr_mmap; @@ -168,7 +240,7 @@ static int qedr_register_device(struct qedr_dev *dev) 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.dev.parent = &dev->pdev->dev; diff --git a/drivers/infiniband/hw/qedr/qedr.h b/drivers/infiniband/hw/qedr/qedr.h index ab7784bfdac6..c52fde04d575 100644 --- a/drivers/infiniband/hw/qedr/qedr.h +++ b/drivers/infiniband/hw/qedr/qedr.h @@ -44,6 +44,8 @@ #define QEDR_MODULE_VERSION "8.10.10.0" #define QEDR_NODE_DESC "QLogic 579xx RoCE HCA" #define DP_NAME(dev) ((dev)->ibdev.name) +#define IS_IWARP(_dev) ((_dev)->rdma_type == QED_RDMA_TYPE_IWARP) +#define IS_ROCE(_dev) ((_dev)->rdma_type == QED_RDMA_TYPE_ROCE) #define DP_DEBUG(dev, module, fmt, ...) \ pr_debug("(%s) " module ": " fmt, \ @@ -161,6 +163,7 @@ struct qedr_dev { struct qedr_cq *gsi_sqcq; struct qedr_cq *gsi_rqcq; struct qedr_qp *gsi_qp; + enum qed_rdma_type rdma_type; unsigned long enet_state; }; diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c index 9a280d1971fc..047ac74f6ed8 100644 --- a/drivers/infiniband/hw/qedr/verbs.c +++ b/drivers/infiniband/hw/qedr/verbs.c @@ -70,6 +70,20 @@ int qedr_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey) return 0; } +int qedr_iw_query_gid(struct ib_device *ibdev, u8 port, + int index, union ib_gid *sgid) +{ + struct qedr_dev *dev = get_qedr_dev(ibdev); + + memset(sgid->raw, 0, sizeof(sgid->raw)); + ether_addr_copy(sgid->raw, dev->ndev->dev_addr); + + DP_DEBUG(dev, QEDR_MSG_INIT, "QUERY sgid[%d]=%llx:%llx\n", index, + sgid->global.interface_id, sgid->global.subnet_prefix); + + return 0; +} + int qedr_query_gid(struct ib_device *ibdev, u8 port, int index, union ib_gid *sgid) { @@ -3600,23 +3614,3 @@ int qedr_process_mad(struct ib_device *ibdev, int process_mad_flags, 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; - - immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE | - RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP; - - err = ib_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->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 0f8ab49d5a1a..1a94425dea33 100644 --- a/drivers/infiniband/hw/qedr/verbs.h +++ b/drivers/infiniband/hw/qedr/verbs.h @@ -39,6 +39,8 @@ int qedr_modify_port(struct ib_device *, u8 port, int mask, struct ib_port_modify *props); int qedr_query_gid(struct ib_device *, u8 port, int index, union ib_gid *gid); +int qedr_iw_query_gid(struct ib_device *ibdev, u8 port, + int index, union ib_gid *gid); int qedr_query_pkey(struct ib_device *, u8 port, u16 index, u16 *pkey); -- 2.11.0