diff options
| author | Jesse Brandeburg <jbrandeburg@cloudflare.com> | 2025-03-06 20:56:34 +0300 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2025-03-18 19:38:15 +0300 |
| commit | 7fd71f317288d5150d353ce9d65b1e2abf99a8e2 (patch) | |
| tree | 5aa4b597e43e52c0e1609883b32d4e1236ea636b /drivers/net/ethernet/intel/ice/ice_common.c | |
| parent | 53ce7166cbffd2b8f3bd821fd3918be665afd4c6 (diff) | |
| download | linux-7fd71f317288d5150d353ce9d65b1e2abf99a8e2.tar.xz | |
ice: fix reservation of resources for RDMA when disabled
If the CONFIG_INFINIBAND_IRDMA symbol is not enabled as a module or a
built-in, then don't let the driver reserve resources for RDMA. The result
of this change is a large savings in resources for older kernels, and a
cleaner driver configuration for the IRDMA=n case for old and new kernels.
Implement this by avoiding enabling the RDMA capability when scanning
hardware capabilities.
Note: Loading the out-of-tree irdma driver in connection to the in-kernel
ice driver, is not supported, and should not be attempted, especially when
disabling IRDMA in the kernel config.
Fixes: d25a0fc41c1f ("ice: Initialize RDMA support")
Signed-off-by: Jesse Brandeburg <jbrandeburg@cloudflare.com>
Acked-by: Dave Ertman <david.m.ertman@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_common.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_common.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c index 7a2a2e8da8fa..1e801300310e 100644 --- a/drivers/net/ethernet/intel/ice/ice_common.c +++ b/drivers/net/ethernet/intel/ice/ice_common.c @@ -2271,7 +2271,8 @@ ice_parse_common_caps(struct ice_hw *hw, struct ice_hw_common_caps *caps, caps->nvm_unified_update); break; case ICE_AQC_CAPS_RDMA: - caps->rdma = (number == 1); + if (IS_ENABLED(CONFIG_INFINIBAND_IRDMA)) + caps->rdma = (number == 1); ice_debug(hw, ICE_DBG_INIT, "%s: rdma = %d\n", prefix, caps->rdma); break; case ICE_AQC_CAPS_MAX_MTU: |