From c35a1d7fdecc4439b5c33f2d2578b1cbeade93f2 Mon Sep 17 00:00:00 2001 From: Jesse Brandeburg Date: Wed, 18 Dec 2013 13:46:02 +0000 Subject: [PATCH] i40e: Add a dummy packet template The hardware requires a full packet template to be pointed to when adding hardware flow filters. This patch adds the template and uses it for programming filters. Change-ID: I09db9f4ab0207ca9c520ae36596d74e1a0663ae5 Signed-off-by: Anjali Singhai Jain Signed-off-by: Jesse Brandeburg Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 26 +++++++++++++++++++++++--- 1 file changed, 23 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c index 2016ca074392..b886ee5bd99d 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c +++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c @@ -1243,6 +1243,7 @@ static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) } #define IP_HEADER_OFFSET 14 +#define I40E_UDPIP_DUMMY_PACKET_LEN 42 /** * i40e_add_del_fdir_udpv4 - Add/Remove UDPv4 Flow Director filters for * a specific flow spec @@ -1263,6 +1264,12 @@ static int i40e_add_del_fdir_udpv4(struct i40e_vsi *vsi, bool err = false; int ret; int i; + char packet[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0, + 0x45, 0, 0, 0x1c, 0, 0, 0x40, 0, 0x40, 0x11, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0}; + + memcpy(fd_data->raw_packet, packet, I40E_UDPIP_DUMMY_PACKET_LEN); ip = (struct iphdr *)(fd_data->raw_packet + IP_HEADER_OFFSET); udp = (struct udphdr *)(fd_data->raw_packet + IP_HEADER_OFFSET @@ -1293,6 +1300,7 @@ static int i40e_add_del_fdir_udpv4(struct i40e_vsi *vsi, return err ? -EOPNOTSUPP : 0; } +#define I40E_TCPIP_DUMMY_PACKET_LEN 54 /** * i40e_add_del_fdir_tcpv4 - Add/Remove TCPv4 Flow Director filters for * a specific flow spec @@ -1312,6 +1320,14 @@ static int i40e_add_del_fdir_tcpv4(struct i40e_vsi *vsi, struct iphdr *ip; bool err = false; int ret; + /* Dummy packet */ + char packet[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0, + 0x45, 0, 0, 0x28, 0, 0, 0x40, 0, 0x40, 0x6, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0x80, 0x11, 0x0, 0x72, 0, 0, 0, 0}; + + memcpy(fd_data->raw_packet, packet, I40E_TCPIP_DUMMY_PACKET_LEN); ip = (struct iphdr *)(fd_data->raw_packet + IP_HEADER_OFFSET); tcp = (struct tcphdr *)(fd_data->raw_packet + IP_HEADER_OFFSET @@ -1319,6 +1335,8 @@ static int i40e_add_del_fdir_tcpv4(struct i40e_vsi *vsi, ip->daddr = fsp->h_u.tcp_ip4_spec.ip4dst; tcp->dest = fsp->h_u.tcp_ip4_spec.pdst; + ip->saddr = fsp->h_u.tcp_ip4_spec.ip4src; + tcp->source = fsp->h_u.tcp_ip4_spec.psrc; fd_data->pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN; ret = i40e_program_fdir_filter(fd_data, pf, add); @@ -1333,9 +1351,6 @@ static int i40e_add_del_fdir_tcpv4(struct i40e_vsi *vsi, fd_data->pctype, ret); } - ip->saddr = fsp->h_u.tcp_ip4_spec.ip4src; - tcp->source = fsp->h_u.tcp_ip4_spec.psrc; - fd_data->pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; ret = i40e_program_fdir_filter(fd_data, pf, add); @@ -1369,6 +1384,7 @@ static int i40e_add_del_fdir_sctpv4(struct i40e_vsi *vsi, return -EOPNOTSUPP; } +#define I40E_IP_DUMMY_PACKET_LEN 34 /** * i40e_add_del_fdir_ipv4 - Add/Remove IPv4 Flow Director filters for * a specific flow spec @@ -1388,7 +1404,11 @@ static int i40e_add_del_fdir_ipv4(struct i40e_vsi *vsi, bool err = false; int ret; int i; + char packet[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0, + 0x45, 0, 0, 0x14, 0, 0, 0x40, 0, 0x40, 0x10, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; + memcpy(fd_data->raw_packet, packet, I40E_IP_DUMMY_PACKET_LEN); ip = (struct iphdr *)(fd_data->raw_packet + IP_HEADER_OFFSET); ip->saddr = fsp->h_u.usr_ip4_spec.ip4src; -- 2.11.0