2024-02-02 15:08:17

by Konstantin Taranov

[permalink] [raw]
Subject: [PATCH rdma-next v2 3/5] RDMA/mana_ib: Implement port parameters

Implement port parameters for RNIC. Only port 1 is RoCEv2 capable.

Signed-off-by: Konstantin Taranov <[email protected]>
---
drivers/infiniband/hw/mana/device.c | 2 ++
drivers/infiniband/hw/mana/main.c | 37 +++++++++++++++++++++++++++++++++++-
drivers/infiniband/hw/mana/mana_ib.h | 4 ++++
3 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/mana/device.c b/drivers/infiniband/hw/mana/device.c
index d8e8b10..11b0410 100644
--- a/drivers/infiniband/hw/mana/device.c
+++ b/drivers/infiniband/hw/mana/device.c
@@ -29,12 +29,14 @@
.destroy_rwq_ind_table = mana_ib_destroy_rwq_ind_table,
.destroy_wq = mana_ib_destroy_wq,
.disassociate_ucontext = mana_ib_disassociate_ucontext,
+ .get_link_layer = mana_ib_get_link_layer,
.get_port_immutable = mana_ib_get_port_immutable,
.mmap = mana_ib_mmap,
.modify_qp = mana_ib_modify_qp,
.modify_wq = mana_ib_modify_wq,
.query_device = mana_ib_query_device,
.query_gid = mana_ib_query_gid,
+ .query_pkey = mana_ib_query_pkey,
.query_port = mana_ib_query_port,
.reg_user_mr = mana_ib_reg_user_mr,

diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c
index 33cd69e..3e05a62 100644
--- a/drivers/infiniband/hw/mana/main.c
+++ b/drivers/infiniband/hw/mana/main.c
@@ -492,7 +492,42 @@ int mana_ib_query_device(struct ib_device *ibdev, struct ib_device_attr *props,
int mana_ib_query_port(struct ib_device *ibdev, u32 port,
struct ib_port_attr *props)
{
- /* This version doesn't return port properties */
+ struct net_device *ndev = mana_ib_get_netdev(ibdev, port);
+
+ if (!ndev)
+ return -EINVAL;
+
+ memset(props, 0, sizeof(*props));
+ props->max_mtu = IB_MTU_4096;
+ props->active_mtu = ib_mtu_int_to_enum(ndev->mtu);
+
+ if (netif_carrier_ok(ndev) && netif_running(ndev)) {
+ props->state = IB_PORT_ACTIVE;
+ props->phys_state = IB_PORT_PHYS_STATE_LINK_UP;
+ } else {
+ props->state = IB_PORT_DOWN;
+ props->phys_state = IB_PORT_PHYS_STATE_DISABLED;
+ }
+
+ props->active_width = IB_WIDTH_4X;
+ props->active_speed = IB_SPEED_EDR;
+ props->pkey_tbl_len = 1;
+ if (port == 1)
+ props->gid_tbl_len = 16;
+
+ return 0;
+}
+
+enum rdma_link_layer mana_ib_get_link_layer(struct ib_device *device, u32 port_num)
+{
+ return IB_LINK_LAYER_ETHERNET;
+}
+
+int mana_ib_query_pkey(struct ib_device *ibdev, u32 port, u16 index, u16 *pkey)
+{
+ if (index != 0)
+ return -EINVAL;
+ *pkey = IB_DEFAULT_PKEY_FULL;
return 0;
}

diff --git a/drivers/infiniband/hw/mana/mana_ib.h b/drivers/infiniband/hw/mana/mana_ib.h
index 96454cf..196f3c8 100644
--- a/drivers/infiniband/hw/mana/mana_ib.h
+++ b/drivers/infiniband/hw/mana/mana_ib.h
@@ -262,4 +262,8 @@ int mana_ib_query_gid(struct ib_device *ibdev, u32 port, int index,
void mana_ib_gd_create_rnic_adapter(struct mana_ib_dev *mdev);

void mana_ib_gd_destroy_rnic_adapter(struct mana_ib_dev *mdev);
+
+int mana_ib_query_pkey(struct ib_device *ibdev, u32 port, u16 index, u16 *pkey);
+
+enum rdma_link_layer mana_ib_get_link_layer(struct ib_device *device, u32 port_num);
#endif
--
1.8.3.1