xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Garpu 0
Kode Masalah Tarik Permintaan Actions Packages Projects Rilis Wiki Kegiatan

IB: Query ports via the core instead of direct into the driver

Telusuri Sumber 
Change the drivers to call ib_query_port in their get port
immutable handler instead of their own query port handler.

Doing this required to set the core cap flags of this device
before the ib_query_port call is made, since the IB core might
need these caps to serve the port query.

Drivers are ensured by the IB core that the port attributes passed
to the port query verb implementation are zero, and hence we
removed the zeroing from the drivers.

This patch doesn't add any new functionality.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Acked-by: Adit Ranadive <aditr@vmware.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Or Gerlitz
2017-01-24 13:02:39 +02:00
committed by Doug Ledford
orang tua ce1e055fb9
melakukan c4550c63b3
22 mengubah file dengan 73 tambahan dan 54 penghapusan
Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/infiniband/sw/rdmavt/vt.c
Melihat File

@@ -165,7 +165,7 @@ static int rvt_query_port(struct ib_device *ibdev, u8 port_num,
return -EINVAL;
rvp = rdi->ports[port_index];
memset(props, 0, sizeof(*props));
/* props being zeroed by the caller, avoid zeroing it here */
props->sm_lid = rvp->sm_lid;
props->sm_sl = rvp->sm_sl;
props->port_cap_flags = rvp->port_cap_flags;
@@ -326,13 +326,14 @@ static int rvt_get_port_immutable(struct ib_device *ibdev, u8 port_num,
if (port_index < 0)
return -EINVAL;
err = rvt_query_port(ibdev, port_num, &attr);
immutable->core_cap_flags = rdi->dparms.core_cap_flags;
err = ib_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 = rdi->dparms.core_cap_flags;
immutable->max_mad_size = rdi->dparms.max_mad_size;
return 0;

6
drivers/infiniband/sw/rxe/rxe_verbs.c
Melihat File

@@ -86,6 +86,7 @@ static int rxe_query_port(struct ib_device *dev,
port = &rxe->port;
/* *attr being zeroed by the caller, avoid zeroing it here */
*attr = port->attr;
mutex_lock(&rxe->usdev_lock);
@@ -261,13 +262,14 @@ static int rxe_port_immutable(struct ib_device *dev, u8 port_num,
int err;
struct ib_port_attr attr;
err = rxe_query_port(dev, port_num, &attr);
immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP;
err = ib_query_port(dev, 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_UDP_ENCAP;
immutable->max_mad_size = IB_MGMT_MAD_SIZE;
return 0;