diff options
| author | Cheng Xu <chengyou@linux.alibaba.com> | 2022-09-09 17:38:22 +0800 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2022-09-21 10:31:24 +0300 |
| commit | 9bdb9350f3808bbff229167acb55cf0a3bd8f2ca (patch) | |
| tree | c10604af8129ae350b03474d1941425253ce84ec /drivers/infiniband/hw/erdma/erdma_main.c | |
| parent | a3c278807a459e6f50afee6971cabe74cccfb490 (diff) | |
RDMA/erdma: Support dynamic mtu
Hardware now support jumbo frame for RDMA. So we introduce a new CMDQ
message to support mtu change notification.
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220909093822.33868-5-chengyou@linux.alibaba.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'drivers/infiniband/hw/erdma/erdma_main.c')
| -rw-r--r-- | drivers/infiniband/hw/erdma/erdma_main.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/erdma/erdma_main.c b/drivers/infiniband/hw/erdma/erdma_main.c index 6d3e02ba9e77..49778bb294ae 100644 --- a/drivers/infiniband/hw/erdma/erdma_main.c +++ b/drivers/infiniband/hw/erdma/erdma_main.c @@ -34,10 +34,15 @@ static int erdma_netdev_event(struct notifier_block *nb, unsigned long event, dev->state = IB_PORT_DOWN; erdma_port_event(dev, IB_EVENT_PORT_ERR); break; + case NETDEV_CHANGEMTU: + if (dev->mtu != netdev->mtu) { + erdma_set_mtu(dev, netdev->mtu); + dev->mtu = netdev->mtu; + } + break; case NETDEV_REGISTER: case NETDEV_UNREGISTER: case NETDEV_CHANGEADDR: - case NETDEV_CHANGEMTU: case NETDEV_GOING_DOWN: case NETDEV_CHANGE: default: @@ -95,6 +100,7 @@ static int erdma_device_register(struct erdma_dev *dev) if (ret) return ret; + dev->mtu = dev->netdev->mtu; addrconf_addr_eui48((u8 *)&ibdev->node_guid, dev->netdev->dev_addr); ret = ib_register_device(ibdev, "erdma_%d", &dev->pdev->dev); |