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authorAnjali Singhai Jain <anjali.singhai@intel.com>2014-01-17 15:36:35 -0800
committerDavid S. Miller <davem@davemloft.net>2014-01-17 19:13:04 -0800
commitcbf613252496ed00f8669328bbd94296a03bcc79 (patch)
tree9c3601ab1bc0d7a2affb8a5e4b05697bcd97719e /drivers/net/ethernet/intel/i40e/i40e_ethtool.c
parent60ea5f83cddf538a4509f2214ffd50d8d69952a5 (diff)
downloadlwn-cbf613252496ed00f8669328bbd94296a03bcc79.tar.gz
lwn-cbf613252496ed00f8669328bbd94296a03bcc79.zip
i40e: refactor flow director
The i40e hardware was generating some inconsistent results when using current programming methods. This refactor fixes the inconsistencies that were preventing clean unloads of the driver, and moves the queues for handling flow director errors into their own hardware VSI. This patch also implements a corrected version of the basic ethtool add ntuple rule, which will disable the driver's automatic flow programming. A future patch adds remove/replay/list support for ntuple. Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_ethtool.c')
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_ethtool.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index ba1ea9f9e475..b1d7d8c5cb9b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -1135,6 +1135,7 @@ static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
ret = i40e_get_rss_hash_opts(pf, cmd);
break;
case ETHTOOL_GRXCLSRLCNT:
+ cmd->rule_cnt = 10;
ret = 0;
break;
case ETHTOOL_GRXCLSRULE:
@@ -1369,6 +1370,13 @@ static int i40e_add_del_fdir_tcpv4(struct i40e_vsi *vsi,
ip->saddr = fsp->h_u.tcp_ip4_spec.ip4src;
tcp->source = fsp->h_u.tcp_ip4_spec.psrc;
+ if (add) {
+ if (pf->flags & I40E_FLAG_FD_ATR_ENABLED) {
+ dev_info(&pf->pdev->dev, "Forcing ATR off, sideband rules for TCP/IPv4 flow being applied\n");
+ pf->flags &= ~I40E_FLAG_FD_ATR_ENABLED;
+ }
+ }
+
fd_data->pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN;
ret = i40e_program_fdir_filter(fd_data, pf, add);
@@ -1508,8 +1516,8 @@ static int i40e_add_del_fdir_ethtool(struct i40e_vsi *vsi,
fd_data.flex_off = 0;
fd_data.pctype = 0;
fd_data.dest_vsi = vsi->id;
- fd_data.dest_ctl = 0;
- fd_data.fd_status = 0;
+ fd_data.dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
+ fd_data.fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
fd_data.cnt_index = 0;
fd_data.fd_id = 0;