diff options
| author | Jeff Guo <jia.guo@intel.com> | 2023-12-13 01:33:20 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-12-14 07:07:17 +0100 |
| commit | 352e9bf238133882dfaebc0dc59a590732a92006 (patch) | |
| tree | e29733d9fb867567177a495aeab80b16e276903f /drivers/net/ethernet/intel/ice/ice_hw_autogen.h | |
| parent | ice: refactor the FD and RSS flow ID generation (diff) | |
| download | linux-352e9bf238133882dfaebc0dc59a590732a92006.tar.xz linux-352e9bf238133882dfaebc0dc59a590732a92006.zip | |
ice: enable symmetric-xor RSS for Toeplitz hash function
Allow the user to set the symmetric Toeplitz hash function via:
# ethtool -X eth0 hfunc toeplitz symmetric-xor
All existing RSS configurations will be converted to symmetric unless they
have a non-symmetric field (other than IP src/dst and L4 src/dst ports)
used for hashing. The driver will reject a new RSS configuration if such
a field is requested.
The hash function in the E800 NICs is set per-VSI and a specific AQ
command is needed to modify the hash function. Use the AQ command to
enable setting the symmetric Toeplitz RSS hash function for any VSI
in the new ice_set_rss_hfunc().
When the Symmetric Toeplitz hash function is used, the hardware sets the
input set of the RSS (Toeplitz) algorithm to be the XOR of the fields
index by HSYMM and the fields index by the INSET registers. We use this
to create a symmetric hash by setting the HSYMM registers to point to
their counterparts in the INSET registers:
HSYMM [src_fv] = dst_fv;
HSYMM [dst_fv] = src_fv;
where src_fv and dst_fv are the indexes of the protocol's src and dst
fields.
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Signed-off-by: Jeff Guo <jia.guo@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Co-developed-by: Ahmed Zaki <ahmed.zaki@intel.com>
Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com>
Link: https://lore.kernel.org/r/20231213003321.605376-8-ahmed.zaki@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_hw_autogen.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_hw_autogen.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_hw_autogen.h b/drivers/net/ethernet/intel/ice/ice_hw_autogen.h index 86936b758ade..e126dbbd7b2c 100644 --- a/drivers/net/ethernet/intel/ice/ice_hw_autogen.h +++ b/drivers/net/ethernet/intel/ice/ice_hw_autogen.h @@ -404,6 +404,10 @@ #define GLQF_HMASK_SEL(_i) (0x00410000 + ((_i) * 4)) #define GLQF_HMASK_SEL_MAX_INDEX 127 #define GLQF_HMASK_SEL_MASK_SEL_S 0 +#define GLQF_HSYMM(_i, _j) (0x0040F000 + ((_i) * 4 + (_j) * 512)) +#define GLQF_HSYMM_REG_SIZE 4 +#define GLQF_HSYMM_REG_PER_PROF 6 +#define GLQF_HSYMM_ENABLE_BIT BIT(7) #define E800_PFQF_FD_CNT_FD_GCNT_M GENMASK(14, 0) #define E830_PFQF_FD_CNT_FD_GCNT_M GENMASK(15, 0) #define E800_PFQF_FD_CNT_FD_BCNT_M GENMASK(30, 16) |