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author | Kalderon, Michal <Michal.Kalderon@cavium.com> | 2017-07-26 14:41:52 +0300 |
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committer | Doug Ledford <dledford@redhat.com> | 2017-08-18 12:25:42 -0400 |
commit | e6a38c54faf38498170e227c82ea25cb8bc1ae71 (patch) | |
tree | 694a8442a0c3d16c9f9ea5c5d926c49ba72142ea /drivers/infiniband/hw/qedr/main.c | |
parent | RDMA/qedr: Rename the qedr_cm file as a preparation for iWARP support (diff) | |
download | linux-dev-e6a38c54faf38498170e227c82ea25cb8bc1ae71.tar.xz linux-dev-e6a38c54faf38498170e227c82ea25cb8bc1ae71.zip |
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 <Michal.Kalderon@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to '')
-rw-r--r-- | drivers/infiniband/hw/qedr/main.c | 84 |
1 files changed, 78 insertions, 6 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 <rdma/ib_verbs.h> #include <rdma/ib_addr.h> #include <rdma/ib_user_verbs.h> +#include <rdma/iw_cm.h> +#include <rdma/ib_mad.h> #include <linux/netdevice.h> #include <linux/iommu.h> #include <linux/pci.h> @@ -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; |