diff options
| author | Ahmed Zaki <ahmed.zaki@intel.com> | 2023-12-12 17:33:14 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-12-13 22:07:16 -0800 |
| commit | fb6e30a72539ce28c1323aef4190d35aac106f6f (patch) | |
| tree | 5fe3886113c8ddb0b4db61c4bb274234058e02c9 /drivers/net/ethernet/chelsio | |
| parent | c3f687d8dfeb33cffbb8f47c30002babfc4895d2 (diff) | |
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/chelsio')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c index 8477a93cee6b..47eecde36285 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c @@ -1588,22 +1588,23 @@ static u32 get_rss_table_size(struct net_device *dev) return pi->rss_size; } -static int get_rss_table(struct net_device *dev, u32 *p, u8 *key, u8 *hfunc) +static int get_rss_table(struct net_device *dev, + struct ethtool_rxfh_param *rxfh) { const struct port_info *pi = netdev_priv(dev); unsigned int n = pi->rss_size; - if (hfunc) - *hfunc = ETH_RSS_HASH_TOP; - if (!p) + rxfh->hfunc = ETH_RSS_HASH_TOP; + if (!rxfh->indir) return 0; while (n--) - p[n] = pi->rss[n]; + rxfh->indir[n] = pi->rss[n]; return 0; } -static int set_rss_table(struct net_device *dev, const u32 *p, const u8 *key, - const u8 hfunc) +static int set_rss_table(struct net_device *dev, + struct ethtool_rxfh_param *rxfh, + struct netlink_ext_ack *extack) { unsigned int i; struct port_info *pi = netdev_priv(dev); @@ -1611,16 +1612,17 @@ static int set_rss_table(struct net_device *dev, const u32 *p, const u8 *key, /* We require at least one supported parameter to be changed and no * change in any of the unsupported parameters */ - if (key || - (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) + if (rxfh->key || + (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && + rxfh->hfunc != ETH_RSS_HASH_TOP)) return -EOPNOTSUPP; - if (!p) + if (!rxfh->indir) return 0; /* Interface must be brought up atleast once */ if (pi->adapter->flags & CXGB4_FULL_INIT_DONE) { for (i = 0; i < pi->rss_size; i++) - pi->rss[i] = p[i]; + pi->rss[i] = rxfh->indir[i]; return cxgb4_write_rss(pi, pi->rss); } |