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i40e: Add a dummy packet template

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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 <anjali.singhai@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Jesse Brandeburg 2013-12-18 13:46:02 +00:00 committed by Jeff Kirsher
parent 4dda12e61b
commit c35a1d7fde
1 changed files with 23 additions and 3 deletions
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26
drivers/net/ethernet/intel/i40e/i40e_ethtool.c
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@ -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;