diff options
| author | Paolo Abeni <pabeni@redhat.com> | 2016-12-15 15:20:34 +0100 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2017-03-03 02:19:17 +0100 |
| commit | d3aa9c9f212a729e46653d4c1eb6a9ab190efe3a (patch) | |
| tree | 6991157aa60459950f49f089f0659142b01fd8fc | |
| parent | xen-netback: Use GFP_ATOMIC to allocate hash (diff) | |
| download | linux-d3aa9c9f212a729e46653d4c1eb6a9ab190efe3a.tar.xz linux-d3aa9c9f212a729e46653d4c1eb6a9ab190efe3a.zip | |
ixgbe: update the rss key on h/w, when ethtool ask for it
Currently ixgbe_set_rxfh() updates the rss_key copy in the driver
memory, but does not push the new value into the h/w. This commit
add a new helper for the latter operation and call it in
ixgbe_set_rxfh(), so that the h/w rss key value can be really
updated via ethtool.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 19 |
3 files changed, 20 insertions, 4 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h index a2cc43d28888..7a951b116821 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h @@ -929,6 +929,7 @@ netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb, struct ixgbe_adapter *adapter, struct ixgbe_ring *tx_ring); u32 ixgbe_rss_indir_tbl_entries(struct ixgbe_adapter *adapter); +void ixgbe_store_key(struct ixgbe_adapter *adapter); void ixgbe_store_reta(struct ixgbe_adapter *adapter); s32 ixgbe_negotiate_fc(struct ixgbe_hw *hw, u32 adv_reg, u32 lp_reg, u32 adv_sym, u32 adv_asm, u32 lp_sym, u32 lp_asm); diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c index a7574c7b12af..90fa5bf23d1b 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c @@ -2998,8 +2998,10 @@ static int ixgbe_set_rxfh(struct net_device *netdev, const u32 *indir, } /* Fill out the rss hash key */ - if (key) + if (key) { memcpy(adapter->rss_key, key, ixgbe_get_rxfh_key_size(netdev)); + ixgbe_store_key(adapter); + } ixgbe_store_reta(adapter); diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 060cdce8058f..67ab13fd163c 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -3474,6 +3474,21 @@ u32 ixgbe_rss_indir_tbl_entries(struct ixgbe_adapter *adapter) } /** + * ixgbe_store_key - Write the RSS key to HW + * @adapter: device handle + * + * Write the RSS key stored in adapter.rss_key to HW. + */ +void ixgbe_store_key(struct ixgbe_adapter *adapter) +{ + struct ixgbe_hw *hw = &adapter->hw; + int i; + + for (i = 0; i < 10; i++) + IXGBE_WRITE_REG(hw, IXGBE_RSSRK(i), adapter->rss_key[i]); +} + +/** * ixgbe_store_reta - Write the RETA table to HW * @adapter: device handle * @@ -3538,7 +3553,6 @@ static void ixgbe_store_vfreta(struct ixgbe_adapter *adapter) static void ixgbe_setup_reta(struct ixgbe_adapter *adapter) { - struct ixgbe_hw *hw = &adapter->hw; u32 i, j; u32 reta_entries = ixgbe_rss_indir_tbl_entries(adapter); u16 rss_i = adapter->ring_feature[RING_F_RSS].indices; @@ -3551,8 +3565,7 @@ static void ixgbe_setup_reta(struct ixgbe_adapter *adapter) rss_i = 4; /* Fill out hash function seeds */ - for (i = 0; i < 10; i++) - IXGBE_WRITE_REG(hw, IXGBE_RSSRK(i), adapter->rss_key[i]); + ixgbe_store_key(adapter); /* Fill out redirection table */ memset(adapter->rss_indir_tbl, 0, sizeof(adapter->rss_indir_tbl)); |