Commit 3893fc62 authored by Manish Chopra's avatar Manish Chopra Committed by David S. Miller
Browse files

qed*: Support other classification modes.



Currently, driver supports flow classification to PF
receive queues based on TCP/UDP 4 tuples [src_ip, dst_ip,
src_port, dst_port] only.

This patch enables to configure different flow profiles
[For example - only UDP dest port or src_ip based] on the
adapter so that classification can be done according to
just those fields as well. Although, at a time just one
type of flow configuration is supported due to limited
number of flow profiles available on the device.

For example -

ethtool -N enp7s0f0 flow-type udp4 dst-port 45762 action 2
ethtool -N enp7s0f0 flow-type tcp4 src-ip 192.16.4.10 action 1
ethtool -N enp7s0f0 flow-type udp6 dst-port 45762 action 3
Signed-off-by: default avatarManish Chopra <manish.chopra@cavium.com>
Signed-off-by: default avatarShahed Shaikh <shahed.shaikh@cavium.com>
Signed-off-by: default avatarAriel Elior <ariel.elior@cavium.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 89ffd14e
......@@ -1973,6 +1973,8 @@ qed_arfs_mode_to_hsi(enum qed_filter_config_mode mode)
return GFT_PROFILE_TYPE_4_TUPLE;
if (mode == QED_FILTER_CONFIG_MODE_IP_DEST)
return GFT_PROFILE_TYPE_IP_DST_ADDR;
if (mode == QED_FILTER_CONFIG_MODE_IP_SRC)
return GFT_PROFILE_TYPE_IP_SRC_ADDR;
return GFT_PROFILE_TYPE_L4_DST_PORT;
}
......
......@@ -1623,9 +1623,17 @@ static int qede_flow_spec_to_tuple_ipv4_common(struct qede_dev *edev,
t->src_port = fs->h_u.tcp_ip4_spec.psrc;
t->dst_port = fs->h_u.tcp_ip4_spec.pdst;
/* We must have a valid 4-tuple */
/* We must either have a valid 4-tuple or only dst port
* or only src ip as an input
*/
if (t->src_port && t->dst_port && t->src_ipv4 && t->dst_ipv4) {
t->mode = QED_FILTER_CONFIG_MODE_5_TUPLE;
} else if (!t->src_port && t->dst_port &&
!t->src_ipv4 && !t->dst_ipv4) {
t->mode = QED_FILTER_CONFIG_MODE_L4_PORT;
} else if (!t->src_port && !t->dst_port &&
!t->dst_ipv4 && t->src_ipv4) {
t->mode = QED_FILTER_CONFIG_MODE_IP_SRC;
} else {
DP_INFO(edev, "Invalid N-tuple\n");
return -EOPNOTSUPP;
......@@ -1697,11 +1705,21 @@ static int qede_flow_spec_to_tuple_ipv6_common(struct qede_dev *edev,
t->src_port = fs->h_u.tcp_ip6_spec.psrc;
t->dst_port = fs->h_u.tcp_ip6_spec.pdst;
/* We must make sure we have a valid 4-tuple */
/* We must make sure we have a valid 4-tuple or only dest port
* or only src ip as an input
*/
if (t->src_port && t->dst_port &&
memcmp(&t->src_ipv6, p, sizeof(struct in6_addr)) &&
memcmp(&t->dst_ipv6, p, sizeof(struct in6_addr))) {
t->mode = QED_FILTER_CONFIG_MODE_5_TUPLE;
} else if (!t->src_port && t->dst_port &&
!memcmp(&t->src_ipv6, p, sizeof(struct in6_addr)) &&
!memcmp(&t->dst_ipv6, p, sizeof(struct in6_addr))) {
t->mode = QED_FILTER_CONFIG_MODE_L4_PORT;
} else if (!t->src_port && !t->dst_port &&
!memcmp(&t->dst_ipv6, p, sizeof(struct in6_addr)) &&
memcmp(&t->src_ipv6, p, sizeof(struct in6_addr))) {
t->mode = QED_FILTER_CONFIG_MODE_IP_SRC;
} else {
DP_INFO(edev, "Invalid N-tuple\n");
return -EOPNOTSUPP;
......@@ -1779,6 +1797,15 @@ static int qede_flow_spec_validate(struct qede_dev *edev,
return -EINVAL;
}
/* Check if the filtering-mode could support the filter */
if (edev->arfs->filter_count &&
edev->arfs->mode != t->mode) {
DP_INFO(edev,
"flow_spec would require filtering mode %08x, but %08x is configured\n",
t->mode, edev->arfs->filter_count);
return -EINVAL;
}
if (fs->ring_cookie >= QEDE_RSS_COUNT(edev)) {
DP_INFO(edev, "Queue out-of-bounds\n");
return -EINVAL;
......
......@@ -66,6 +66,7 @@ enum qed_filter_config_mode {
QED_FILTER_CONFIG_MODE_5_TUPLE,
QED_FILTER_CONFIG_MODE_L4_PORT,
QED_FILTER_CONFIG_MODE_IP_DEST,
QED_FILTER_CONFIG_MODE_IP_SRC,
};
struct qed_ntuple_filter_params {
......
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