diff options
| author | Ahmed Zaki <ahmed.zaki@intel.com> | 2023-12-13 03:33:14 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-12-14 09:07:16 +0300 |
| commit | fb6e30a72539ce28c1323aef4190d35aac106f6f (patch) | |
| tree | 5fe3886113c8ddb0b4db61c4bb274234058e02c9 /drivers/net/ethernet/intel/fm10k | |
| parent | c3f687d8dfeb33cffbb8f47c30002babfc4895d2 (diff) | |
| download | linux-fb6e30a72539ce28c1323aef4190d35aac106f6f.tar.xz | |
net: ethtool: pass a pointer to parameters to get/set_rxfh ethtool ops
The get/set_rxfh ethtool ops currently takes the rxfh (RSS) parameters
as direct function arguments. This will force us to change the API (and
all drivers' functions) every time some new parameters are added.
This is part 1/2 of the fix, as suggested in [1]:
- First simplify the code by always providing a pointer to all params
(indir, key and func); the fact that some of them may be NULL seems
like a weird historic thing or a premature optimization.
It will simplify the drivers if all pointers are always present.
- Then make the functions take a dev pointer, and a pointer to a
single struct wrapping all arguments. The set_* should also take
an extack.
Link: https://lore.kernel.org/netdev/20231121152906.2dd5f487@kernel.org/ [1]
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Suggested-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com>
Link: https://lore.kernel.org/r/20231213003321.605376-2-ahmed.zaki@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/intel/fm10k')
| -rw-r--r-- | drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c index 13a05604dcc0..1bc5b6c0b897 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c @@ -1057,16 +1057,16 @@ static u32 fm10k_get_rssrk_size(struct net_device __always_unused *netdev) return FM10K_RSSRK_SIZE * FM10K_RSSRK_ENTRIES_PER_REG; } -static int fm10k_get_rssh(struct net_device *netdev, u32 *indir, u8 *key, - u8 *hfunc) +static int fm10k_get_rssh(struct net_device *netdev, + struct ethtool_rxfh_param *rxfh) { struct fm10k_intfc *interface = netdev_priv(netdev); + u8 *key = rxfh->key; int i, err; - if (hfunc) - *hfunc = ETH_RSS_HASH_TOP; + rxfh->hfunc = ETH_RSS_HASH_TOP; - err = fm10k_get_reta(netdev, indir); + err = fm10k_get_reta(netdev, rxfh->indir); if (err || !key) return err; @@ -1076,23 +1076,25 @@ static int fm10k_get_rssh(struct net_device *netdev, u32 *indir, u8 *key, return 0; } -static int fm10k_set_rssh(struct net_device *netdev, const u32 *indir, - const u8 *key, const u8 hfunc) +static int fm10k_set_rssh(struct net_device *netdev, + struct ethtool_rxfh_param *rxfh, + struct netlink_ext_ack *extack) { struct fm10k_intfc *interface = netdev_priv(netdev); struct fm10k_hw *hw = &interface->hw; int i, err; /* We do not allow change in unsupported parameters */ - if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) + if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && + rxfh->hfunc != ETH_RSS_HASH_TOP) return -EOPNOTSUPP; - err = fm10k_set_reta(netdev, indir); - if (err || !key) + err = fm10k_set_reta(netdev, rxfh->indir); + if (err || !rxfh->key) return err; - for (i = 0; i < FM10K_RSSRK_SIZE; i++, key += 4) { - u32 rssrk = le32_to_cpu(*(__le32 *)key); + for (i = 0; i < FM10K_RSSRK_SIZE; i++, rxfh->key += 4) { + u32 rssrk = le32_to_cpu(*(__le32 *)rxfh->key); if (interface->rssrk[i] == rssrk) continue; |