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| author |   Anand Khoje <anand.a.khoje@oracle.com> | 2021-07-12 17:56:23 +0530 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@nvidia.com> | 2021-07-16 10:57:28 -0300 |
| commit | 0bc0602ae8275aadc7288692331589350987cef7 (patch) | |
| tree | 22c3f319afcb52fc89168ebd9034769a93adb155 /drivers/infiniband/core/cache.c | |
| parent | RDMA/efa: Split hardware stats to device and port stats (diff) | |
| download | linux-dev-0bc0602ae8275aadc7288692331589350987cef7.tar.xz linux-dev-0bc0602ae8275aadc7288692331589350987cef7.zip | |
IB/core: Updating cache for subnet_prefix in config_non_roce_gid_cache()
Currently, cache for subnet_prefix was getting updated by reading port
attributes via ib_query_port. ib_query_port() calls ops.query_gid() to get
subnet_prefix and returns it via port_attr.
In ib_cache_update(), config_non_roce_gid_cache() obtains GIDs by calling
ops.query_gid(). We utilize this to store subnet_prefix in cache.
Link: https://lore.kernel.org/r/20210712122625.1147-2-anand.a.khoje@oracle.com
Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Suggested-by: Aru Kolappan <aru.kolappan@oracle.com>
Signed-off-by: Anand Khoje <anand.a.khoje@oracle.com>
Signed-off-by: Haakon Bugge <haakon.bugge@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/core/cache.c')
| -rw-r--r-- | drivers/infiniband/core/cache.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c index c9e9fc81447e..929399e103d1 100644 --- a/drivers/infiniband/core/cache.c +++ b/drivers/infiniband/core/cache.c @@ -1429,7 +1429,7 @@ int rdma_read_gid_l2_fields(const struct ib_gid_attr *attr, EXPORT_SYMBOL(rdma_read_gid_l2_fields); static int config_non_roce_gid_cache(struct ib_device *device, - u32 port, int gid_tbl_len) + u32 port, struct ib_port_attr *tprops) { struct ib_gid_attr gid_attr = {}; struct ib_gid_table *table; @@ -1441,7 +1441,7 @@ static int config_non_roce_gid_cache(struct ib_device *device, table = rdma_gid_table(device, port); mutex_lock(&table->lock); - for (i = 0; i < gid_tbl_len; ++i) { + for (i = 0; i < tprops->gid_tbl_len; ++i) { if (!device->ops.query_gid) continue; ret = device->ops.query_gid(device, port, i, &gid_attr.gid); @@ -1452,6 +1452,8 @@ static int config_non_roce_gid_cache(struct ib_device *device, goto err; } gid_attr.index = i; + tprops->subnet_prefix = + be64_to_cpu(gid_attr.gid.global.subnet_prefix); add_modify_gid(table, &gid_attr); } err: @@ -1484,7 +1486,7 @@ ib_cache_update(struct ib_device *device, u32 port, bool update_gids, if (!rdma_protocol_roce(device, port) && update_gids) { ret = config_non_roce_gid_cache(device, port, - tprops->gid_tbl_len); + tprops); if (ret) goto err; } |