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Date: Mon, 13 Aug 2018 13:44:10 -0700
From: Saeed Mahameed <saeedm@...lanox.com>
To: "David S. Miller" <davem@...emloft.net>
Cc: netdev@...r.kernel.org, Saeed Mahameed <saeedm@...lanox.com>
Subject: [net-next V2 02/12] net/mlx5e: Ethtool steering flow parsing refactoring
Have a parsing function per flow type, that converts from ethtool rx flow
spec to mlx5 flow spec.
Will be useful to add support for ip6 ethtool flow steering in the
next patch.
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
.../mellanox/mlx5/core/en_fs_ethtool.c | 230 ++++++++++--------
1 file changed, 128 insertions(+), 102 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
index 5301399164fb..cf2491a54d32 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
@@ -115,29 +115,134 @@ static void mask_spec(u8 *mask, u8 *val, size_t size)
*((u8 *)val) = *((u8 *)mask) & *((u8 *)val);
}
-static void set_ips(void *outer_headers_v, void *outer_headers_c, __be32 ip4src_m,
- __be32 ip4src_v, __be32 ip4dst_m, __be32 ip4dst_v)
+#define MLX5E_FTE_SET(header_p, fld, v) \
+ MLX5_SET(fte_match_set_lyr_2_4, header_p, fld, v)
+
+#define MLX5E_FTE_ADDR_OF(header_p, fld) \
+ MLX5_ADDR_OF(fte_match_set_lyr_2_4, header_p, fld)
+
+static void
+set_ip4(void *headers_c, void *headers_v, __be32 ip4src_m,
+ __be32 ip4src_v, __be32 ip4dst_m, __be32 ip4dst_v)
{
if (ip4src_m) {
- memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, outer_headers_v,
- src_ipv4_src_ipv6.ipv4_layout.ipv4),
+ memcpy(MLX5E_FTE_ADDR_OF(headers_v, src_ipv4_src_ipv6.ipv4_layout.ipv4),
&ip4src_v, sizeof(ip4src_v));
- memset(MLX5_ADDR_OF(fte_match_set_lyr_2_4, outer_headers_c,
- src_ipv4_src_ipv6.ipv4_layout.ipv4),
+ memset(MLX5E_FTE_ADDR_OF(headers_c, src_ipv4_src_ipv6.ipv4_layout.ipv4),
0xff, sizeof(ip4src_m));
}
if (ip4dst_m) {
- memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, outer_headers_v,
- dst_ipv4_dst_ipv6.ipv4_layout.ipv4),
+ memcpy(MLX5E_FTE_ADDR_OF(headers_v, dst_ipv4_dst_ipv6.ipv4_layout.ipv4),
&ip4dst_v, sizeof(ip4dst_v));
- memset(MLX5_ADDR_OF(fte_match_set_lyr_2_4, outer_headers_c,
- dst_ipv4_dst_ipv6.ipv4_layout.ipv4),
+ memset(MLX5E_FTE_ADDR_OF(headers_c, dst_ipv4_dst_ipv6.ipv4_layout.ipv4),
0xff, sizeof(ip4dst_m));
}
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_v,
- ethertype, ETH_P_IP);
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_c,
- ethertype, 0xffff);
+
+ MLX5E_FTE_SET(headers_c, ethertype, 0xffff);
+ MLX5E_FTE_SET(headers_v, ethertype, ETH_P_IP);
+}
+
+static void
+set_tcp(void *headers_c, void *headers_v, __be16 psrc_m, __be16 psrc_v,
+ __be16 pdst_m, __be16 pdst_v)
+{
+ if (psrc_m) {
+ MLX5E_FTE_SET(headers_c, tcp_sport, 0xffff);
+ MLX5E_FTE_SET(headers_v, tcp_sport, ntohs(psrc_v));
+ }
+ if (pdst_m) {
+ MLX5E_FTE_SET(headers_c, tcp_dport, 0xffff);
+ MLX5E_FTE_SET(headers_v, tcp_dport, ntohs(pdst_v));
+ }
+
+ MLX5E_FTE_SET(headers_c, ip_protocol, 0xffff);
+ MLX5E_FTE_SET(headers_v, ip_protocol, IPPROTO_TCP);
+}
+
+static void
+set_udp(void *headers_c, void *headers_v, __be16 psrc_m, __be16 psrc_v,
+ __be16 pdst_m, __be16 pdst_v)
+{
+ if (psrc_m) {
+ MLX5E_FTE_SET(headers_c, udp_sport, 0xffff);
+ MLX5E_FTE_SET(headers_c, udp_sport, ntohs(psrc_v));
+ }
+
+ if (pdst_m) {
+ MLX5E_FTE_SET(headers_c, udp_dport, 0xffff);
+ MLX5E_FTE_SET(headers_v, udp_dport, ntohs(pdst_v));
+ }
+
+ MLX5E_FTE_SET(headers_c, ip_protocol, 0xffff);
+ MLX5E_FTE_SET(headers_v, ip_protocol, IPPROTO_UDP);
+}
+
+static void
+parse_tcp4(void *headers_c, void *headers_v, struct ethtool_rx_flow_spec *fs)
+{
+ struct ethtool_tcpip4_spec *l4_mask = &fs->m_u.tcp_ip4_spec;
+ struct ethtool_tcpip4_spec *l4_val = &fs->h_u.tcp_ip4_spec;
+
+ set_ip4(headers_c, headers_v, l4_mask->ip4src, l4_val->ip4src,
+ l4_mask->ip4dst, l4_val->ip4dst);
+
+ set_tcp(headers_c, headers_v, l4_mask->psrc, l4_val->psrc,
+ l4_mask->pdst, l4_val->pdst);
+}
+
+static void
+parse_udp4(void *headers_c, void *headers_v, struct ethtool_rx_flow_spec *fs)
+{
+ struct ethtool_tcpip4_spec *l4_mask = &fs->m_u.udp_ip4_spec;
+ struct ethtool_tcpip4_spec *l4_val = &fs->h_u.udp_ip4_spec;
+
+ set_ip4(headers_c, headers_v, l4_mask->ip4src, l4_val->ip4src,
+ l4_mask->ip4dst, l4_val->ip4dst);
+
+ set_udp(headers_c, headers_v, l4_mask->psrc, l4_val->psrc,
+ l4_mask->pdst, l4_val->pdst);
+}
+
+static void
+parse_ip4(void *headers_c, void *headers_v, struct ethtool_rx_flow_spec *fs)
+{
+ struct ethtool_usrip4_spec *l3_mask = &fs->m_u.usr_ip4_spec;
+ struct ethtool_usrip4_spec *l3_val = &fs->h_u.usr_ip4_spec;
+
+ set_ip4(headers_c, headers_v, l3_mask->ip4src, l3_val->ip4src,
+ l3_mask->ip4dst, l3_val->ip4dst);
+}
+
+static void
+parse_ether(void *headers_c, void *headers_v, struct ethtool_rx_flow_spec *fs)
+{
+ struct ethhdr *eth_mask = &fs->m_u.ether_spec;
+ struct ethhdr *eth_val = &fs->h_u.ether_spec;
+
+ mask_spec((u8 *)eth_mask, (u8 *)eth_val, sizeof(*eth_mask));
+ ether_addr_copy(MLX5E_FTE_ADDR_OF(headers_c, smac_47_16), eth_mask->h_source);
+ ether_addr_copy(MLX5E_FTE_ADDR_OF(headers_v, smac_47_16), eth_val->h_source);
+ ether_addr_copy(MLX5E_FTE_ADDR_OF(headers_c, dmac_47_16), eth_mask->h_dest);
+ ether_addr_copy(MLX5E_FTE_ADDR_OF(headers_v, dmac_47_16), eth_val->h_dest);
+ MLX5E_FTE_SET(headers_c, ethertype, ntohs(eth_mask->h_proto));
+ MLX5E_FTE_SET(headers_v, ethertype, ntohs(eth_val->h_proto));
+}
+
+static void
+set_cvlan(void *headers_c, void *headers_v, __be16 vlan_tci)
+{
+ MLX5E_FTE_SET(headers_c, cvlan_tag, 1);
+ MLX5E_FTE_SET(headers_v, cvlan_tag, 1);
+ MLX5E_FTE_SET(headers_c, first_vid, 0xfff);
+ MLX5E_FTE_SET(headers_v, first_vid, ntohs(vlan_tci));
+}
+
+static void
+set_dmac(void *headers_c, void *headers_v,
+ unsigned char m_dest[ETH_ALEN], unsigned char v_dest[ETH_ALEN])
+{
+ ether_addr_copy(MLX5E_FTE_ADDR_OF(headers_c, dmac_47_16), m_dest);
+ ether_addr_copy(MLX5E_FTE_ADDR_OF(headers_v, dmac_47_16), v_dest);
}
static int set_flow_attrs(u32 *match_c, u32 *match_v,
@@ -148,112 +253,33 @@ static int set_flow_attrs(u32 *match_c, u32 *match_v,
void *outer_headers_v = MLX5_ADDR_OF(fte_match_param, match_v,
outer_headers);
u32 flow_type = fs->flow_type & ~(FLOW_EXT | FLOW_MAC_EXT);
- struct ethtool_tcpip4_spec *l4_mask;
- struct ethtool_tcpip4_spec *l4_val;
- struct ethtool_usrip4_spec *l3_mask;
- struct ethtool_usrip4_spec *l3_val;
- struct ethhdr *eth_val;
- struct ethhdr *eth_mask;
switch (flow_type) {
case TCP_V4_FLOW:
- l4_mask = &fs->m_u.tcp_ip4_spec;
- l4_val = &fs->h_u.tcp_ip4_spec;
- set_ips(outer_headers_v, outer_headers_c, l4_mask->ip4src,
- l4_val->ip4src, l4_mask->ip4dst, l4_val->ip4dst);
-
- if (l4_mask->psrc) {
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_c, tcp_sport,
- 0xffff);
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_v, tcp_sport,
- ntohs(l4_val->psrc));
- }
- if (l4_mask->pdst) {
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_c, tcp_dport,
- 0xffff);
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_v, tcp_dport,
- ntohs(l4_val->pdst));
- }
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_c, ip_protocol,
- 0xffff);
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_v, ip_protocol,
- IPPROTO_TCP);
+ parse_tcp4(outer_headers_c, outer_headers_v, fs);
break;
case UDP_V4_FLOW:
- l4_mask = &fs->m_u.tcp_ip4_spec;
- l4_val = &fs->h_u.tcp_ip4_spec;
- set_ips(outer_headers_v, outer_headers_c, l4_mask->ip4src,
- l4_val->ip4src, l4_mask->ip4dst, l4_val->ip4dst);
-
- if (l4_mask->psrc) {
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_c, udp_sport,
- 0xffff);
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_v, udp_sport,
- ntohs(l4_val->psrc));
- }
- if (l4_mask->pdst) {
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_c, udp_dport,
- 0xffff);
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_v, udp_dport,
- ntohs(l4_val->pdst));
- }
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_c, ip_protocol,
- 0xffff);
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_v, ip_protocol,
- IPPROTO_UDP);
+ parse_udp4(outer_headers_c, outer_headers_v, fs);
break;
case IP_USER_FLOW:
- l3_mask = &fs->m_u.usr_ip4_spec;
- l3_val = &fs->h_u.usr_ip4_spec;
- set_ips(outer_headers_v, outer_headers_c, l3_mask->ip4src,
- l3_val->ip4src, l3_mask->ip4dst, l3_val->ip4dst);
+ parse_ip4(outer_headers_c, outer_headers_v, fs);
break;
case ETHER_FLOW:
- eth_mask = &fs->m_u.ether_spec;
- eth_val = &fs->h_u.ether_spec;
-
- mask_spec((u8 *)eth_mask, (u8 *)eth_val, sizeof(*eth_mask));
- ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4,
- outer_headers_c, smac_47_16),
- eth_mask->h_source);
- ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4,
- outer_headers_v, smac_47_16),
- eth_val->h_source);
- ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4,
- outer_headers_c, dmac_47_16),
- eth_mask->h_dest);
- ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4,
- outer_headers_v, dmac_47_16),
- eth_val->h_dest);
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_c, ethertype,
- ntohs(eth_mask->h_proto));
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_v, ethertype,
- ntohs(eth_val->h_proto));
+ parse_ether(outer_headers_c, outer_headers_v, fs);
break;
default:
return -EINVAL;
}
if ((fs->flow_type & FLOW_EXT) &&
- (fs->m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK))) {
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_c,
- cvlan_tag, 1);
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_v,
- cvlan_tag, 1);
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_c,
- first_vid, 0xfff);
- MLX5_SET(fte_match_set_lyr_2_4, outer_headers_v,
- first_vid, ntohs(fs->h_ext.vlan_tci));
- }
+ (fs->m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)))
+ set_cvlan(outer_headers_c, outer_headers_v, fs->h_ext.vlan_tci);
+
if (fs->flow_type & FLOW_MAC_EXT &&
!is_zero_ether_addr(fs->m_ext.h_dest)) {
mask_spec(fs->m_ext.h_dest, fs->h_ext.h_dest, ETH_ALEN);
- ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4,
- outer_headers_c, dmac_47_16),
- fs->m_ext.h_dest);
- ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4,
- outer_headers_v, dmac_47_16),
- fs->h_ext.h_dest);
+ set_dmac(outer_headers_c, outer_headers_v, fs->m_ext.h_dest,
+ fs->h_ext.h_dest);
}
return 0;
--
2.17.0
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