sfc: Generalise filter spec initialisation
Move search_depth arrays into per-table state.
Define initialisation function efx_filter_init_rx() which sets
everything apart from the match fields.
Define efx_filter_set_{ipv4_local,ipv4_full,eth_local}() to set the
match fields. This allows some simplification of callers and later
support for additional protocols and more flexible matching using
multiple calls to these functions.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
diff --git a/drivers/net/sfc/ethtool.c b/drivers/net/sfc/ethtool.c
index 0f46c1a..5e50e57 100644
--- a/drivers/net/sfc/ethtool.c
+++ b/drivers/net/sfc/ethtool.c
@@ -11,6 +11,7 @@
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/rtnetlink.h>
+#include <linux/in.h>
#include "net_driver.h"
#include "workarounds.h"
#include "selftest.h"
@@ -920,6 +921,7 @@
struct ethhdr *mac_entry = &ntuple->fs.h_u.ether_spec;
struct ethhdr *mac_mask = &ntuple->fs.m_u.ether_spec;
struct efx_filter_spec filter;
+ int rc;
/* Range-check action */
if (ntuple->fs.action < ETHTOOL_RXNTUPLE_ACTION_CLEAR ||
@@ -929,9 +931,16 @@
if (~ntuple->fs.data_mask)
return -EINVAL;
+ efx_filter_init_rx(&filter, EFX_FILTER_PRI_MANUAL, 0,
+ (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP) ?
+ 0xfff : ntuple->fs.action);
+
switch (ntuple->fs.flow_type) {
case TCP_V4_FLOW:
- case UDP_V4_FLOW:
+ case UDP_V4_FLOW: {
+ u8 proto = (ntuple->fs.flow_type == TCP_V4_FLOW ?
+ IPPROTO_TCP : IPPROTO_UDP);
+
/* Must match all of destination, */
if (ip_mask->ip4dst | ip_mask->pdst)
return -EINVAL;
@@ -943,7 +952,22 @@
/* and nothing else */
if ((u8)~ip_mask->tos | (u16)~ntuple->fs.vlan_tag_mask)
return -EINVAL;
+
+ if (!ip_mask->ip4src)
+ rc = efx_filter_set_ipv4_full(&filter, proto,
+ ip_entry->ip4dst,
+ ip_entry->pdst,
+ ip_entry->ip4src,
+ ip_entry->psrc);
+ else
+ rc = efx_filter_set_ipv4_local(&filter, proto,
+ ip_entry->ip4dst,
+ ip_entry->pdst);
+ if (rc)
+ return rc;
break;
+ }
+
case ETHER_FLOW:
/* Must match all of destination, */
if (!is_zero_ether_addr(mac_mask->h_dest))
@@ -956,58 +980,24 @@
if (!is_broadcast_ether_addr(mac_mask->h_source) ||
mac_mask->h_proto != htons(0xffff))
return -EINVAL;
+
+ rc = efx_filter_set_eth_local(
+ &filter,
+ (ntuple->fs.vlan_tag_mask == 0xf000) ?
+ ntuple->fs.vlan_tag : EFX_FILTER_VID_UNSPEC,
+ mac_entry->h_dest);
+ if (rc)
+ return rc;
break;
+
default:
return -EINVAL;
}
- filter.priority = EFX_FILTER_PRI_MANUAL;
- filter.flags = 0;
-
- switch (ntuple->fs.flow_type) {
- case TCP_V4_FLOW:
- if (!ip_mask->ip4src)
- efx_filter_set_rx_tcp_full(&filter,
- htonl(ip_entry->ip4src),
- htons(ip_entry->psrc),
- htonl(ip_entry->ip4dst),
- htons(ip_entry->pdst));
- else
- efx_filter_set_rx_tcp_wild(&filter,
- htonl(ip_entry->ip4dst),
- htons(ip_entry->pdst));
- break;
- case UDP_V4_FLOW:
- if (!ip_mask->ip4src)
- efx_filter_set_rx_udp_full(&filter,
- htonl(ip_entry->ip4src),
- htons(ip_entry->psrc),
- htonl(ip_entry->ip4dst),
- htons(ip_entry->pdst));
- else
- efx_filter_set_rx_udp_wild(&filter,
- htonl(ip_entry->ip4dst),
- htons(ip_entry->pdst));
- break;
- case ETHER_FLOW:
- if (ntuple->fs.vlan_tag_mask == 0xf000)
- efx_filter_set_rx_mac_full(&filter,
- ntuple->fs.vlan_tag & 0xfff,
- mac_entry->h_dest);
- else
- efx_filter_set_rx_mac_wild(&filter, mac_entry->h_dest);
- break;
- }
-
- if (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_CLEAR) {
+ if (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_CLEAR)
return efx_filter_remove_filter(efx, &filter);
- } else {
- if (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP)
- filter.dmaq_id = 0xfff;
- else
- filter.dmaq_id = ntuple->fs.action;
+ else
return efx_filter_insert_filter(efx, &filter, true);
- }
}
static int efx_ethtool_get_rxfh_indir(struct net_device *net_dev,