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 <anjali.singhai@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 2016ca0..b886ee5 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -1243,6 +1243,7 @@
}
#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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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;