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authorJason Gunthorpe <jgg@mellanox.com>2018-07-04 15:57:48 +0300
committerJason Gunthorpe <jgg@mellanox.com>2018-07-10 11:06:45 -0600
commit2f944c0fbf58b1f390e5e61affd98ba0061214c6 (patch)
tree60d5ada14869030e9e0d57ac2ad5050d3fa5b8a0 /drivers/infiniband/hw/mlx4/main.c
parent3fda24324582ae790961137ecb88b3f0f2feb1f0 (diff)
downloadlinux-stericsson-2f944c0fbf58b1f390e5e61affd98ba0061214c6.tar.gz
RDMA: Fix storage of PortInfo CapabilityMask in the kernel
The internal flag IP_BASED_GIDS was added to a field that was being used to hold the port Info CapabilityMask without considering the effects this will have. Since most drivers just use the value from the HW MAD it means IP_BASED_GIDS will also become set on any HW that sets the IBA flag IsOtherLocalChangesNoticeSupported - which is not intended. Fix this by keeping port_cap_flags only for the IBA CapabilityMask value and store unrelated flags externally. Move the bit definitions for this to ib_mad.h to make it clear what is happening. To keep the uAPI unchanged define a new set of flags in the uapi header that are only used by ib_uverbs_query_port_resp.port_cap_flags which match the current flags supported in rdma-core, and the values exposed by the current kernel. Fixes: b4a26a27287a ("IB: Report using RoCE IP based gids in port caps") Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx4/main.c')
-rw-r--r--drivers/infiniband/hw/mlx4/main.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 5bc522ca9431..ca0f1ee26091 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -762,7 +762,8 @@ static int eth_link_query_port(struct ib_device *ibdev, u8 port,
IB_WIDTH_4X : IB_WIDTH_1X;
props->active_speed = (((u8 *)mailbox->buf)[5] == 0x20 /*56Gb*/) ?
IB_SPEED_FDR : IB_SPEED_QDR;
- props->port_cap_flags = IB_PORT_CM_SUP | IB_PORT_IP_BASED_GIDS;
+ props->port_cap_flags = IB_PORT_CM_SUP;
+ props->ip_gids = true;
props->gid_tbl_len = mdev->dev->caps.gid_table_len[port];
props->max_msg_sz = mdev->dev->caps.max_msg_sz;
props->pkey_tbl_len = 1;