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sfc: Implement ethtool RX NFC rules API instead of n-tuple API 

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings 2012-01-03 12:05:47 +00:00 committed by David S. Miller
parent 1a6281ac5c
commit b2bb7b776a
1 changed files with 149 additions and 39 deletions
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188
drivers/net/ethernet/sfc/ethtool.c
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@ -818,9 +818,58 @@ static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
return efx_reset(efx, rc); return efx_reset(efx, rc);
} }
static int efx_ethtool_get_class_rule(struct efx_nic *efx,
struct ethtool_rx_flow_spec *rule)
{
struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
struct efx_filter_spec spec;
u16 vid;
u8 proto;
int rc;
rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL,
rule->location, &spec);
if (rc)
return rc;
if (spec.dmaq_id == 0xfff)
rule->ring_cookie = RX_CLS_FLOW_DISC;
else
rule->ring_cookie = spec.dmaq_id;
rc = efx_filter_get_eth_local(&spec, &vid,
rule->h_u.ether_spec.h_dest);
if (rc == 0) {
rule->flow_type = ETHER_FLOW;
memset(rule->m_u.ether_spec.h_dest, ~0, ETH_ALEN);
if (vid != EFX_FILTER_VID_UNSPEC) {
rule->flow_type |= FLOW_EXT;
rule->h_ext.vlan_tci = htons(vid);
rule->m_ext.vlan_tci = htons(0xfff);
}
return 0;
}
rc = efx_filter_get_ipv4_local(&spec, &proto,
&ip_entry->ip4dst, &ip_entry->pdst);
if (rc != 0) {
rc = efx_filter_get_ipv4_full(
&spec, &proto, &ip_entry->ip4src, &ip_entry->psrc,
&ip_entry->ip4dst, &ip_entry->pdst);
EFX_WARN_ON_PARANOID(rc);
ip_mask->ip4src = ~0;
ip_mask->psrc = ~0;
}
rule->flow_type = (proto == IPPROTO_TCP) ? TCP_V4_FLOW : UDP_V4_FLOW;
ip_mask->ip4dst = ~0;
ip_mask->pdst = ~0;
return rc;
}
static int static int
efx_ethtool_get_rxnfc(struct net_device *net_dev, efx_ethtool_get_rxnfc(struct net_device *net_dev,
struct ethtool_rxnfc *info, u32 *rules __always_unused) struct ethtool_rxnfc *info, u32 *rule_locs)
{ {
struct efx_nic *efx = netdev_priv(net_dev); struct efx_nic *efx = netdev_priv(net_dev);
@ -862,42 +911,80 @@ efx_ethtool_get_rxnfc(struct net_device *net_dev,
return 0; return 0;
} }
case ETHTOOL_GRXCLSRLCNT:
info->data = efx_filter_get_rx_id_limit(efx);
if (info->data == 0)
return -EOPNOTSUPP;
info->data |= RX_CLS_LOC_SPECIAL;
info->rule_cnt =
efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL);
return 0;
case ETHTOOL_GRXCLSRULE:
if (efx_filter_get_rx_id_limit(efx) == 0)
return -EOPNOTSUPP;
return efx_ethtool_get_class_rule(efx, &info->fs);
case ETHTOOL_GRXCLSRLALL: {
s32 rc;
info->data = efx_filter_get_rx_id_limit(efx);
if (info->data == 0)
return -EOPNOTSUPP;
rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL,
rule_locs, info->rule_cnt);
if (rc < 0)
return rc;
info->rule_cnt = rc;
return 0;
}
default: default:
return -EOPNOTSUPP; return -EOPNOTSUPP;
} }
} }
static int efx_ethtool_set_rx_ntuple(struct net_device *net_dev, static int efx_ethtool_set_class_rule(struct efx_nic *efx,
struct ethtool_rx_ntuple *ntuple) struct ethtool_rx_flow_spec *rule)
{ {
struct efx_nic *efx = netdev_priv(net_dev); struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
struct ethtool_tcpip4_spec *ip_entry = &ntuple->fs.h_u.tcp_ip4_spec; struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
struct ethtool_tcpip4_spec *ip_mask = &ntuple->fs.m_u.tcp_ip4_spec; struct ethhdr *mac_entry = &rule->h_u.ether_spec;
struct ethhdr *mac_entry = &ntuple->fs.h_u.ether_spec; struct ethhdr *mac_mask = &rule->m_u.ether_spec;
struct ethhdr *mac_mask = &ntuple->fs.m_u.ether_spec; struct efx_filter_spec spec;
struct efx_filter_spec filter;
int rc; int rc;
/* Range-check action */ /* Check that user wants us to choose the location */
if (ntuple->fs.action < ETHTOOL_RXNTUPLE_ACTION_CLEAR || if (rule->location != RX_CLS_LOC_ANY &&
ntuple->fs.action >= (s32)efx->n_rx_channels) rule->location != RX_CLS_LOC_FIRST &&
rule->location != RX_CLS_LOC_LAST)
return -EINVAL; return -EINVAL;
if (~ntuple->fs.data_mask) /* Range-check ring_cookie */
if (rule->ring_cookie >= efx->n_rx_channels &&
rule->ring_cookie != RX_CLS_FLOW_DISC)
return -EINVAL; return -EINVAL;
efx_filter_init_rx(&filter, EFX_FILTER_PRI_MANUAL, 0, /* Check for unsupported extensions */
(ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP) ? if ((rule->flow_type & FLOW_EXT) &&
0xfff : ntuple->fs.action); (rule->m_ext.vlan_etype | rule->m_ext.data[0] |
rule->m_ext.data[1]))
return -EINVAL;
switch (ntuple->fs.flow_type) { efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL,
(rule->location == RX_CLS_LOC_FIRST) ?
EFX_FILTER_FLAG_RX_OVERRIDE_IP : 0,
(rule->ring_cookie == RX_CLS_FLOW_DISC) ?
0xfff : rule->ring_cookie);
switch (rule->flow_type) {
case TCP_V4_FLOW: case TCP_V4_FLOW:
case UDP_V4_FLOW: { case UDP_V4_FLOW: {
u8 proto = (ntuple->fs.flow_type == TCP_V4_FLOW ? u8 proto = (rule->flow_type == TCP_V4_FLOW ?
IPPROTO_TCP : IPPROTO_UDP); IPPROTO_TCP : IPPROTO_UDP);
/* Must match all of destination, */ /* Must match all of destination, */
if (ip_mask->ip4dst | ip_mask->pdst) if ((__force u32)~ip_mask->ip4dst |
(__force u16)~ip_mask->pdst)
return -EINVAL; return -EINVAL;
/* all or none of source, */ /* all or none of source, */
if ((ip_mask->ip4src | ip_mask->psrc) && if ((ip_mask->ip4src | ip_mask->psrc) &&
@ -905,17 +992,17 @@ static int efx_ethtool_set_rx_ntuple(struct net_device *net_dev,
(__force u16)~ip_mask->psrc)) (__force u16)~ip_mask->psrc))
return -EINVAL; return -EINVAL;
/* and nothing else */ /* and nothing else */
if ((u8)~ip_mask->tos | (u16)~ntuple->fs.vlan_tag_mask) if (ip_mask->tos | rule->m_ext.vlan_tci)
return -EINVAL; return -EINVAL;
if (!ip_mask->ip4src) if (ip_mask->ip4src)
rc = efx_filter_set_ipv4_full(&filter, proto, rc = efx_filter_set_ipv4_full(&spec, proto,
ip_entry->ip4dst, ip_entry->ip4dst,
ip_entry->pdst, ip_entry->pdst,
ip_entry->ip4src, ip_entry->ip4src,
ip_entry->psrc); ip_entry->psrc);
else else
rc = efx_filter_set_ipv4_local(&filter, proto, rc = efx_filter_set_ipv4_local(&spec, proto,
ip_entry->ip4dst, ip_entry->ip4dst,
ip_entry->pdst); ip_entry->pdst);
if (rc) if (rc)
@ -923,23 +1010,24 @@ static int efx_ethtool_set_rx_ntuple(struct net_device *net_dev,
break; break;
} }
case ETHER_FLOW: case ETHER_FLOW | FLOW_EXT:
/* Must match all of destination, */ /* Must match all or none of VID */
if (!is_zero_ether_addr(mac_mask->h_dest)) if (rule->m_ext.vlan_tci != htons(0xfff) &&
rule->m_ext.vlan_tci != 0)
return -EINVAL; return -EINVAL;
/* all or none of VID, */ case ETHER_FLOW:
if (ntuple->fs.vlan_tag_mask != 0xf000 && /* Must match all of destination */
ntuple->fs.vlan_tag_mask != 0xffff) if (!is_broadcast_ether_addr(mac_mask->h_dest))
return -EINVAL; return -EINVAL;
/* and nothing else */ /* and nothing else */
if (!is_broadcast_ether_addr(mac_mask->h_source) || if (!is_zero_ether_addr(mac_mask->h_source) ||
mac_mask->h_proto != htons(0xffff)) mac_mask->h_proto)
return -EINVAL; return -EINVAL;
rc = efx_filter_set_eth_local( rc = efx_filter_set_eth_local(
&filter, &spec,
(ntuple->fs.vlan_tag_mask == 0xf000) ? (rule->flow_type & FLOW_EXT && rule->m_ext.vlan_tci) ?
ntuple->fs.vlan_tag : EFX_FILTER_VID_UNSPEC, ntohs(rule->h_ext.vlan_tci) : EFX_FILTER_VID_UNSPEC,
mac_entry->h_dest); mac_entry->h_dest);
if (rc) if (rc)
return rc; return rc;
@ -949,11 +1037,33 @@ static int efx_ethtool_set_rx_ntuple(struct net_device *net_dev,
return -EINVAL; return -EINVAL;
} }
if (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_CLEAR) rc = efx_filter_insert_filter(efx, &spec, true);
return efx_filter_remove_filter(efx, &filter); if (rc < 0)
return rc;
rc = efx_filter_insert_filter(efx, &filter, true); rule->location = rc;
return rc < 0 ? rc : 0; return 0;
}
static int efx_ethtool_set_rxnfc(struct net_device *net_dev,
struct ethtool_rxnfc *info)
{
struct efx_nic *efx = netdev_priv(net_dev);
if (efx_filter_get_rx_id_limit(efx) == 0)
return -EOPNOTSUPP;
switch (info->cmd) {
case ETHTOOL_SRXCLSRLINS:
return efx_ethtool_set_class_rule(efx, &info->fs);
case ETHTOOL_SRXCLSRLDEL:
return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL,
info->fs.location);
default:
return -EOPNOTSUPP;
}
} }
static u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev) static u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
@ -1007,7 +1117,7 @@ const struct ethtool_ops efx_ethtool_ops = {
.set_wol = efx_ethtool_set_wol, .set_wol = efx_ethtool_set_wol,
.reset = efx_ethtool_reset, .reset = efx_ethtool_reset,
.get_rxnfc = efx_ethtool_get_rxnfc, .get_rxnfc = efx_ethtool_get_rxnfc,
.set_rx_ntuple = efx_ethtool_set_rx_ntuple, .set_rxnfc = efx_ethtool_set_rxnfc,
.get_rxfh_indir_size = efx_ethtool_get_rxfh_indir_size, .get_rxfh_indir_size = efx_ethtool_get_rxfh_indir_size,
.get_rxfh_indir = efx_ethtool_get_rxfh_indir, .get_rxfh_indir = efx_ethtool_get_rxfh_indir,
.set_rxfh_indir = efx_ethtool_set_rxfh_indir, .set_rxfh_indir = efx_ethtool_set_rxfh_indir,