diff options
| author | Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> | 2019-02-28 15:24:24 -0800 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2019-04-18 08:38:47 -0700 |
| commit | 7b9ffc76bf5998aad8feaa26d9d3fcb65ec7a21b (patch) | |
| tree | 9935f6c7b53786d7f9ce06d804aa4a42ce541ec4 /drivers/net/ethernet/intel/ice/ice_dcb_lib.h | |
| parent | 0ebd3ff13ccad2940516ba522ca8d21cea4f56f6 (diff) | |
ice: Add code for DCB initialization part 3/4
This patch adds a new function ice_pf_dcb_cfg (and related helpers)
which applies the DCB configuration obtained from the firmware. As
part of this, VSIs/netdevs are updated with traffic class information.
This patch requires a bit of a refactor of existing code.
1. For a MIB change event, the associated VSI is closed and brought up
again. The gap between closing and opening the VSI can cause a race
condition. Fix this by grabbing the rtnl_lock prior to closing the
VSI and then only free it after re-opening the VSI during a MIB
change event.
2. ice_sched_query_elem is used in ice_sched.c and with this patch, in
ice_dcb.c as well. However, ice_dcb.c is not built when CONFIG_DCB is
unset. This results in namespace warnings (ice_sched.o: Externally
defined symbols with no external references) when CONFIG_DCB is unset.
To avoid this move ice_sched_query_elem from ice_sched.c to
ice_common.c.
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_dcb_lib.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_dcb_lib.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_dcb_lib.h b/drivers/net/ethernet/intel/ice/ice_dcb_lib.h index d67c769a9fb5..9c2fa11f6383 100644 --- a/drivers/net/ethernet/intel/ice/ice_dcb_lib.h +++ b/drivers/net/ethernet/intel/ice/ice_dcb_lib.h @@ -8,12 +8,25 @@ #include "ice_lib.h" #ifdef CONFIG_DCB +u8 ice_dcb_get_ena_tc(struct ice_dcbx_cfg *dcbcfg); +u8 ice_dcb_get_num_tc(struct ice_dcbx_cfg *dcbcfg); int ice_init_pf_dcb(struct ice_pf *pf); #else +static inline u8 ice_dcb_get_ena_tc(struct ice_dcbx_cfg __always_unused *dcbcfg) +{ + return ICE_DFLT_TRAFFIC_CLASS; +} + +static inline u8 ice_dcb_get_num_tc(struct ice_dcbx_cfg __always_unused *dcbcfg) +{ + return 1; +} + static inline int ice_init_pf_dcb(struct ice_pf *pf) { dev_dbg(&pf->pdev->dev, "DCB not supported\n"); return -EOPNOTSUPP; } + #endif /* CONFIG_DCB */ #endif /* _ICE_DCB_LIB_H_ */ |