From 1d1424c8f834e4e3b8792d310a94b0e2e8f59b4c Mon Sep 17 00:00:00 2001 From: Ram Amrani Date: Mon, 10 Oct 2016 13:15:37 +0300 Subject: [PATCH] qedr: Add LL2 RoCE interface Add light L2 interface for RoCE. Signed-off-by: Rajesh Borundia Signed-off-by: Ram Amrani Signed-off-by: Doug Ledford --- drivers/infiniband/hw/qedr/main.c | 34 ++++++++++++++++++++++++++++++- drivers/infiniband/hw/qedr/qedr.h | 2 +- 2 files changed, 34 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/qedr/main.c b/drivers/infiniband/hw/qedr/main.c index 858cc354153d..e5a07a2d4c5e 100644 --- a/drivers/infiniband/hw/qedr/main.c +++ b/drivers/infiniband/hw/qedr/main.c @@ -724,6 +724,38 @@ static void qedr_shutdown(struct qedr_dev *dev) qedr_remove(dev); } +static void qedr_mac_address_change(struct qedr_dev *dev) +{ + union ib_gid *sgid = &dev->sgid_tbl[0]; + u8 guid[8], mac_addr[6]; + int rc; + + /* Update SGID */ + ether_addr_copy(&mac_addr[0], dev->ndev->dev_addr); + guid[0] = mac_addr[0] ^ 2; + guid[1] = mac_addr[1]; + guid[2] = mac_addr[2]; + guid[3] = 0xff; + guid[4] = 0xfe; + guid[5] = mac_addr[3]; + guid[6] = mac_addr[4]; + guid[7] = mac_addr[5]; + sgid->global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL); + memcpy(&sgid->raw[8], guid, sizeof(guid)); + + /* Update LL2 */ + rc = dev->ops->roce_ll2_set_mac_filter(dev->cdev, + dev->gsi_ll2_mac_address, + dev->ndev->dev_addr); + + ether_addr_copy(dev->gsi_ll2_mac_address, dev->ndev->dev_addr); + + qedr_ib_dispatch_event(dev, 1, IB_EVENT_GID_CHANGE); + + if (rc) + DP_ERR(dev, "Error updating mac filter\n"); +} + /* event handling via NIC driver ensures that all the NIC specific * initialization done before RoCE driver notifies * event to stack. @@ -741,7 +773,7 @@ static void qedr_notify(struct qedr_dev *dev, enum qede_roce_event event) qedr_shutdown(dev); break; case QEDE_CHANGE_ADDR: - qedr_ib_dispatch_event(dev, 1, IB_EVENT_GID_CHANGE); + qedr_mac_address_change(dev); break; default: pr_err("Event not supported\n"); diff --git a/drivers/infiniband/hw/qedr/qedr.h b/drivers/infiniband/hw/qedr/qedr.h index 775dbf16fdf2..0b404d87921f 100644 --- a/drivers/infiniband/hw/qedr/qedr.h +++ b/drivers/infiniband/hw/qedr/qedr.h @@ -147,7 +147,7 @@ struct qedr_dev { u8 dp_level; u8 num_hwfns; uint wq_multiplier; - + u8 gsi_ll2_mac_address[ETH_ALEN]; }; #define QEDR_MAX_SQ_PBL (0x8000) -- 2.34.1