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Commit cf78f8ee authored by David S. Miller's avatar David S. Miller
Browse files
parents 1e13f863 c39d35eb
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+2 −3
Original line number Diff line number Diff line
@@ -74,8 +74,7 @@ extern int efx_filter_insert_filter(struct efx_nic *efx,
				    bool replace);
extern int efx_filter_remove_filter(struct efx_nic *efx,
				    struct efx_filter_spec *spec);
extern void efx_filter_table_clear(struct efx_nic *efx,
				   enum efx_filter_table_id table_id,
extern void efx_filter_clear_rx(struct efx_nic *efx,
				enum efx_filter_priority priority);

/* Channels */
+44 −55
Original line number Diff line number Diff line
@@ -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"
@@ -558,12 +559,8 @@ static int efx_ethtool_set_flags(struct net_device *net_dev, u32 data)
	if (rc)
		return rc;

	if (!(data & ETH_FLAG_NTUPLE)) {
		efx_filter_table_clear(efx, EFX_FILTER_TABLE_RX_IP,
				       EFX_FILTER_PRI_MANUAL);
		efx_filter_table_clear(efx, EFX_FILTER_TABLE_RX_MAC,
				       EFX_FILTER_PRI_MANUAL);
	}
	if (!(data & ETH_FLAG_NTUPLE))
		efx_filter_clear_rx(efx, EFX_FILTER_PRI_MANUAL);

	return 0;
}
@@ -582,6 +579,9 @@ static void efx_ethtool_self_test(struct net_device *net_dev,
		goto fail1;
	}

	netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
		   (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");

	/* We need rx buffers and interrupts. */
	already_up = (efx->net_dev->flags & IFF_UP);
	if (!already_up) {
@@ -600,7 +600,7 @@ static void efx_ethtool_self_test(struct net_device *net_dev,
	if (!already_up)
		dev_close(efx->net_dev);

	netif_dbg(efx, drv, efx->net_dev, "%s %sline self-tests\n",
	netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
		   rc == 0 ? "passed" : "failed",
		   (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");

@@ -921,6 +921,7 @@ static int efx_ethtool_set_rx_ntuple(struct net_device *net_dev,
	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 ||
@@ -930,9 +931,16 @@ static int efx_ethtool_set_rx_ntuple(struct net_device *net_dev,
	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;
@@ -944,7 +952,22 @@ static int efx_ethtool_set_rx_ntuple(struct net_device *net_dev,
		/* 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))
@@ -957,59 +980,25 @@ static int efx_ethtool_set_rx_ntuple(struct net_device *net_dev,
		if (!is_broadcast_ether_addr(mac_mask->h_source) ||
		    mac_mask->h_proto != htons(0xffff))
			return -EINVAL;
		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,
		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);
		else
			efx_filter_set_rx_mac_wild(&filter, mac_entry->h_dest);
		if (rc)
			return rc;
		break;

	default:
		return -EINVAL;
	}

	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;
		return efx_filter_insert_filter(efx, &filter, true);
}
}

static int efx_ethtool_get_rxfh_indir(struct net_device *net_dev,
				      struct ethtool_rxfh_indir *indir)
+205 −47
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@
 * by the Free Software Foundation, incorporated herein by reference.
 */

#include <linux/in.h>
#include "efx.h"
#include "filter.h"
#include "io.h"
@@ -26,19 +27,26 @@
 */
#define FILTER_CTL_SRCH_MAX 200

enum efx_filter_table_id {
	EFX_FILTER_TABLE_RX_IP = 0,
	EFX_FILTER_TABLE_RX_MAC,
	EFX_FILTER_TABLE_COUNT,
};

struct efx_filter_table {
	enum efx_filter_table_id id;
	u32		offset;		/* address of table relative to BAR */
	unsigned	size;		/* number of entries */
	unsigned	step;		/* step between entries */
	unsigned	used;		/* number currently used */
	unsigned long	*used_bitmap;
	struct efx_filter_spec *spec;
	unsigned	search_depth[EFX_FILTER_TYPE_COUNT];
};

struct efx_filter_state {
	spinlock_t	lock;
	struct efx_filter_table table[EFX_FILTER_TABLE_COUNT];
	unsigned	search_depth[EFX_FILTER_TYPE_COUNT];
};

/* The filter hash function is LFSR polynomial x^16 + x^3 + 1 of a 32-bit
@@ -65,68 +73,203 @@ static u16 efx_filter_increment(u32 key)
}

static enum efx_filter_table_id
efx_filter_type_table_id(enum efx_filter_type type)
efx_filter_spec_table_id(const struct efx_filter_spec *spec)
{
	BUILD_BUG_ON(EFX_FILTER_TABLE_RX_IP != (EFX_FILTER_TCP_FULL >> 2));
	BUILD_BUG_ON(EFX_FILTER_TABLE_RX_IP != (EFX_FILTER_TCP_WILD >> 2));
	BUILD_BUG_ON(EFX_FILTER_TABLE_RX_IP != (EFX_FILTER_UDP_FULL >> 2));
	BUILD_BUG_ON(EFX_FILTER_TABLE_RX_IP != (EFX_FILTER_UDP_WILD >> 2));
	BUILD_BUG_ON(EFX_FILTER_TABLE_RX_MAC != (EFX_FILTER_MAC_FULL >> 2));
	BUILD_BUG_ON(EFX_FILTER_TABLE_RX_MAC != (EFX_FILTER_MAC_WILD >> 2));
	EFX_BUG_ON_PARANOID(spec->type == EFX_FILTER_UNSPEC);
	return spec->type >> 2;
}

static struct efx_filter_table *
efx_filter_spec_table(struct efx_filter_state *state,
		      const struct efx_filter_spec *spec)
{
	BUILD_BUG_ON(EFX_FILTER_TABLE_RX_IP != (EFX_FILTER_RX_TCP_FULL >> 2));
	BUILD_BUG_ON(EFX_FILTER_TABLE_RX_IP != (EFX_FILTER_RX_TCP_WILD >> 2));
	BUILD_BUG_ON(EFX_FILTER_TABLE_RX_IP != (EFX_FILTER_RX_UDP_FULL >> 2));
	BUILD_BUG_ON(EFX_FILTER_TABLE_RX_IP != (EFX_FILTER_RX_UDP_WILD >> 2));
	BUILD_BUG_ON(EFX_FILTER_TABLE_RX_MAC != (EFX_FILTER_RX_MAC_FULL >> 2));
	BUILD_BUG_ON(EFX_FILTER_TABLE_RX_MAC != (EFX_FILTER_RX_MAC_WILD >> 2));
	return type >> 2;
}

static void
efx_filter_table_reset_search_depth(struct efx_filter_state *state,
				    enum efx_filter_table_id table_id)
	if (spec->type == EFX_FILTER_UNSPEC)
		return NULL;
	else
		return &state->table[efx_filter_spec_table_id(spec)];
}

static void efx_filter_table_reset_search_depth(struct efx_filter_table *table)
{
	memset(state->search_depth + (table_id << 2), 0,
	       sizeof(state->search_depth[0]) << 2);
	memset(table->search_depth, 0, sizeof(table->search_depth));
}

static void efx_filter_push_rx_limits(struct efx_nic *efx)
{
	struct efx_filter_state *state = efx->filter_state;
	struct efx_filter_table *table;
	efx_oword_t filter_ctl;

	efx_reado(efx, &filter_ctl, FR_BZ_RX_FILTER_CTL);

	table = &state->table[EFX_FILTER_TABLE_RX_IP];
	EFX_SET_OWORD_FIELD(filter_ctl, FRF_BZ_TCP_FULL_SRCH_LIMIT,
			    state->search_depth[EFX_FILTER_RX_TCP_FULL] +
			    table->search_depth[EFX_FILTER_TCP_FULL] +
			    FILTER_CTL_SRCH_FUDGE_FULL);
	EFX_SET_OWORD_FIELD(filter_ctl, FRF_BZ_TCP_WILD_SRCH_LIMIT,
			    state->search_depth[EFX_FILTER_RX_TCP_WILD] +
			    table->search_depth[EFX_FILTER_TCP_WILD] +
			    FILTER_CTL_SRCH_FUDGE_WILD);
	EFX_SET_OWORD_FIELD(filter_ctl, FRF_BZ_UDP_FULL_SRCH_LIMIT,
			    state->search_depth[EFX_FILTER_RX_UDP_FULL] +
			    table->search_depth[EFX_FILTER_UDP_FULL] +
			    FILTER_CTL_SRCH_FUDGE_FULL);
	EFX_SET_OWORD_FIELD(filter_ctl, FRF_BZ_UDP_WILD_SRCH_LIMIT,
			    state->search_depth[EFX_FILTER_RX_UDP_WILD] +
			    table->search_depth[EFX_FILTER_UDP_WILD] +
			    FILTER_CTL_SRCH_FUDGE_WILD);

	if (state->table[EFX_FILTER_TABLE_RX_MAC].size) {
	table = &state->table[EFX_FILTER_TABLE_RX_MAC];
	if (table->size) {
		EFX_SET_OWORD_FIELD(
			filter_ctl, FRF_CZ_ETHERNET_FULL_SEARCH_LIMIT,
			state->search_depth[EFX_FILTER_RX_MAC_FULL] +
			table->search_depth[EFX_FILTER_MAC_FULL] +
			FILTER_CTL_SRCH_FUDGE_FULL);
		EFX_SET_OWORD_FIELD(
			filter_ctl, FRF_CZ_ETHERNET_WILDCARD_SEARCH_LIMIT,
			state->search_depth[EFX_FILTER_RX_MAC_WILD] +
			table->search_depth[EFX_FILTER_MAC_WILD] +
			FILTER_CTL_SRCH_FUDGE_WILD);
	}

	efx_writeo(efx, &filter_ctl, FR_BZ_RX_FILTER_CTL);
}

static inline void __efx_filter_set_ipv4(struct efx_filter_spec *spec,
					 __be32 host1, __be16 port1,
					 __be32 host2, __be16 port2)
{
	spec->data[0] = ntohl(host1) << 16 | ntohs(port1);
	spec->data[1] = ntohs(port2) << 16 | ntohl(host1) >> 16;
	spec->data[2] = ntohl(host2);
}

/**
 * efx_filter_set_ipv4_local - specify IPv4 host, transport protocol and port
 * @spec: Specification to initialise
 * @proto: Transport layer protocol number
 * @host: Local host address (network byte order)
 * @port: Local port (network byte order)
 */
int efx_filter_set_ipv4_local(struct efx_filter_spec *spec, u8 proto,
			      __be32 host, __be16 port)
{
	__be32 host1;
	__be16 port1;

	EFX_BUG_ON_PARANOID(!(spec->flags & EFX_FILTER_FLAG_RX));

	/* This cannot currently be combined with other filtering */
	if (spec->type != EFX_FILTER_UNSPEC)
		return -EPROTONOSUPPORT;

	if (port == 0)
		return -EINVAL;

	switch (proto) {
	case IPPROTO_TCP:
		spec->type = EFX_FILTER_TCP_WILD;
		break;
	case IPPROTO_UDP:
		spec->type = EFX_FILTER_UDP_WILD;
		break;
	default:
		return -EPROTONOSUPPORT;
	}

	/* Filter is constructed in terms of source and destination,
	 * with the odd wrinkle that the ports are swapped in a UDP
	 * wildcard filter.  We need to convert from local and remote
	 * (= zero for wildcard) addresses.
	 */
	host1 = 0;
	if (proto != IPPROTO_UDP) {
		port1 = 0;
	} else {
		port1 = port;
		port = 0;
	}

	__efx_filter_set_ipv4(spec, host1, port1, host, port);
	return 0;
}

/**
 * efx_filter_set_ipv4_full - specify IPv4 hosts, transport protocol and ports
 * @spec: Specification to initialise
 * @proto: Transport layer protocol number
 * @host: Local host address (network byte order)
 * @port: Local port (network byte order)
 * @rhost: Remote host address (network byte order)
 * @rport: Remote port (network byte order)
 */
int efx_filter_set_ipv4_full(struct efx_filter_spec *spec, u8 proto,
			     __be32 host, __be16 port,
			     __be32 rhost, __be16 rport)
{
	EFX_BUG_ON_PARANOID(!(spec->flags & EFX_FILTER_FLAG_RX));

	/* This cannot currently be combined with other filtering */
	if (spec->type != EFX_FILTER_UNSPEC)
		return -EPROTONOSUPPORT;

	if (port == 0 || rport == 0)
		return -EINVAL;

	switch (proto) {
	case IPPROTO_TCP:
		spec->type = EFX_FILTER_TCP_FULL;
		break;
	case IPPROTO_UDP:
		spec->type = EFX_FILTER_UDP_FULL;
		break;
	default:
		return -EPROTONOSUPPORT;
	}

	__efx_filter_set_ipv4(spec, rhost, rport, host, port);
	return 0;
}

/**
 * efx_filter_set_eth_local - specify local Ethernet address and optional VID
 * @spec: Specification to initialise
 * @vid: VLAN ID to match, or %EFX_FILTER_VID_UNSPEC
 * @addr: Local Ethernet MAC address
 */
int efx_filter_set_eth_local(struct efx_filter_spec *spec,
			     u16 vid, const u8 *addr)
{
	EFX_BUG_ON_PARANOID(!(spec->flags & EFX_FILTER_FLAG_RX));

	/* This cannot currently be combined with other filtering */
	if (spec->type != EFX_FILTER_UNSPEC)
		return -EPROTONOSUPPORT;

	if (vid == EFX_FILTER_VID_UNSPEC) {
		spec->type = EFX_FILTER_MAC_WILD;
		spec->data[0] = 0;
	} else {
		spec->type = EFX_FILTER_MAC_FULL;
		spec->data[0] = vid;
	}

	spec->data[1] = addr[2] << 24 | addr[3] << 16 | addr[4] << 8 | addr[5];
	spec->data[2] = addr[0] << 8 | addr[1];
	return 0;
}

/* Build a filter entry and return its n-tuple key. */
static u32 efx_filter_build(efx_oword_t *filter, struct efx_filter_spec *spec)
{
	u32 data3;

	switch (efx_filter_type_table_id(spec->type)) {
	switch (efx_filter_spec_table_id(spec)) {
	case EFX_FILTER_TABLE_RX_IP: {
		bool is_udp = (spec->type == EFX_FILTER_RX_UDP_FULL ||
			       spec->type == EFX_FILTER_RX_UDP_WILD);
		bool is_udp = (spec->type == EFX_FILTER_UDP_FULL ||
			       spec->type == EFX_FILTER_UDP_WILD);
		EFX_POPULATE_OWORD_7(
			*filter,
			FRF_BZ_RSS_EN,
@@ -143,7 +286,7 @@ static u32 efx_filter_build(efx_oword_t *filter, struct efx_filter_spec *spec)
	}

	case EFX_FILTER_TABLE_RX_MAC: {
		bool is_wild = spec->type == EFX_FILTER_RX_MAC_WILD;
		bool is_wild = spec->type == EFX_FILTER_MAC_WILD;
		EFX_POPULATE_OWORD_8(
			*filter,
			FRF_CZ_RMFT_RSS_EN,
@@ -206,6 +349,14 @@ static int efx_filter_search(struct efx_filter_table *table,
	return filter_idx;
}

/* Construct/deconstruct external filter IDs */

static inline int
efx_filter_make_id(enum efx_filter_table_id table_id, unsigned index)
{
	return table_id << 16 | index;
}

/**
 * efx_filter_insert_filter - add or replace a filter
 * @efx: NIC in which to insert the filter
@@ -213,30 +364,28 @@ static int efx_filter_search(struct efx_filter_table *table,
 * @replace: Flag for whether the specified filter may replace a filter
 *	with an identical match expression and equal or lower priority
 *
 * On success, return the filter index within its table.
 * On success, return the filter ID.
 * On failure, return a negative error code.
 */
int efx_filter_insert_filter(struct efx_nic *efx, struct efx_filter_spec *spec,
			     bool replace)
{
	struct efx_filter_state *state = efx->filter_state;
	enum efx_filter_table_id table_id =
		efx_filter_type_table_id(spec->type);
	struct efx_filter_table *table = &state->table[table_id];
	struct efx_filter_table *table = efx_filter_spec_table(state, spec);
	struct efx_filter_spec *saved_spec;
	efx_oword_t filter;
	int filter_idx, depth;
	u32 key;
	int rc;

	if (table->size == 0)
	if (!table || table->size == 0)
		return -EINVAL;

	key = efx_filter_build(&filter, spec);

	netif_vdbg(efx, hw, efx->net_dev,
		   "%s: type %d search_depth=%d", __func__, spec->type,
		   state->search_depth[spec->type]);
		   table->search_depth[spec->type]);

	spin_lock_bh(&state->lock);

@@ -263,8 +412,8 @@ int efx_filter_insert_filter(struct efx_nic *efx, struct efx_filter_spec *spec,
	}
	*saved_spec = *spec;

	if (state->search_depth[spec->type] < depth) {
		state->search_depth[spec->type] = depth;
	if (table->search_depth[spec->type] < depth) {
		table->search_depth[spec->type] = depth;
		efx_filter_push_rx_limits(efx);
	}

@@ -273,6 +422,7 @@ int efx_filter_insert_filter(struct efx_nic *efx, struct efx_filter_spec *spec,
	netif_vdbg(efx, hw, efx->net_dev,
		   "%s: filter type %d index %d rxq %u set",
		   __func__, spec->type, filter_idx, spec->dmaq_id);
	rc = efx_filter_make_id(table->id, filter_idx);

out:
	spin_unlock_bh(&state->lock);
@@ -306,15 +456,16 @@ static void efx_filter_table_clear_entry(struct efx_nic *efx,
int efx_filter_remove_filter(struct efx_nic *efx, struct efx_filter_spec *spec)
{
	struct efx_filter_state *state = efx->filter_state;
	enum efx_filter_table_id table_id =
		efx_filter_type_table_id(spec->type);
	struct efx_filter_table *table = &state->table[table_id];
	struct efx_filter_table *table = efx_filter_spec_table(state, spec);
	struct efx_filter_spec *saved_spec;
	efx_oword_t filter;
	int filter_idx, depth;
	u32 key;
	int rc;

	if (!table)
		return -EINVAL;

	key = efx_filter_build(&filter, spec);

	spin_lock_bh(&state->lock);
@@ -332,7 +483,7 @@ int efx_filter_remove_filter(struct efx_nic *efx, struct efx_filter_spec *spec)

	efx_filter_table_clear_entry(efx, table, filter_idx);
	if (table->used == 0)
		efx_filter_table_reset_search_depth(state, table_id);
		efx_filter_table_reset_search_depth(table);
	rc = 0;

out:
@@ -340,13 +491,7 @@ int efx_filter_remove_filter(struct efx_nic *efx, struct efx_filter_spec *spec)
	return rc;
}

/**
 * efx_filter_table_clear - remove filters from a table by priority
 * @efx: NIC from which to remove the filters
 * @table_id: Table from which to remove the filters
 * @priority: Maximum priority to remove
 */
void efx_filter_table_clear(struct efx_nic *efx,
static void efx_filter_table_clear(struct efx_nic *efx,
				   enum efx_filter_table_id table_id,
				   enum efx_filter_priority priority)
{
@@ -360,11 +505,22 @@ void efx_filter_table_clear(struct efx_nic *efx,
		if (table->spec[filter_idx].priority <= priority)
			efx_filter_table_clear_entry(efx, table, filter_idx);
	if (table->used == 0)
		efx_filter_table_reset_search_depth(state, table_id);
		efx_filter_table_reset_search_depth(table);

	spin_unlock_bh(&state->lock);
}

/**
 * efx_filter_clear_rx - remove RX filters by priority
 * @efx: NIC from which to remove the filters
 * @priority: Maximum priority to remove
 */
void efx_filter_clear_rx(struct efx_nic *efx, enum efx_filter_priority priority)
{
	efx_filter_table_clear(efx, EFX_FILTER_TABLE_RX_IP, priority);
	efx_filter_table_clear(efx, EFX_FILTER_TABLE_RX_MAC, priority);
}

/* Restore filter stater after reset */
void efx_restore_filters(struct efx_nic *efx)
{
@@ -407,6 +563,7 @@ int efx_probe_filters(struct efx_nic *efx)

	if (efx_nic_rev(efx) >= EFX_REV_FALCON_B0) {
		table = &state->table[EFX_FILTER_TABLE_RX_IP];
		table->id = EFX_FILTER_TABLE_RX_IP;
		table->offset = FR_BZ_RX_FILTER_TBL0;
		table->size = FR_BZ_RX_FILTER_TBL0_ROWS;
		table->step = FR_BZ_RX_FILTER_TBL0_STEP;
@@ -414,6 +571,7 @@ int efx_probe_filters(struct efx_nic *efx)

	if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0) {
		table = &state->table[EFX_FILTER_TABLE_RX_MAC];
		table->id = EFX_FILTER_TABLE_RX_MAC;
		table->offset = FR_CZ_RX_MAC_FILTER_TBL0;
		table->size = FR_CZ_RX_MAC_FILTER_TBL0_ROWS;
		table->step = FR_CZ_RX_MAC_FILTER_TBL0_STEP;
+36 −113
Original line number Diff line number Diff line
@@ -12,31 +12,27 @@

#include <linux/types.h>

enum efx_filter_table_id {
	EFX_FILTER_TABLE_RX_IP = 0,
	EFX_FILTER_TABLE_RX_MAC,
	EFX_FILTER_TABLE_COUNT,
};

/**
 * enum efx_filter_type - type of hardware filter
 * @EFX_FILTER_RX_TCP_FULL: RX, matching TCP/IPv4 4-tuple
 * @EFX_FILTER_RX_TCP_WILD: RX, matching TCP/IPv4 destination (host, port)
 * @EFX_FILTER_RX_UDP_FULL: RX, matching UDP/IPv4 4-tuple
 * @EFX_FILTER_RX_UDP_WILD: RX, matching UDP/IPv4 destination (host, port)
 * @EFX_FILTER_RX_MAC_FULL: RX, matching Ethernet destination MAC address, VID
 * @EFX_FILTER_RX_MAC_WILD: RX, matching Ethernet destination MAC address
 * @EFX_FILTER_TCP_FULL: Matching TCP/IPv4 4-tuple
 * @EFX_FILTER_TCP_WILD: Matching TCP/IPv4 destination (host, port)
 * @EFX_FILTER_UDP_FULL: Matching UDP/IPv4 4-tuple
 * @EFX_FILTER_UDP_WILD: Matching UDP/IPv4 destination (host, port)
 * @EFX_FILTER_MAC_FULL: Matching Ethernet destination MAC address, VID
 * @EFX_FILTER_MAC_WILD: Matching Ethernet destination MAC address
 * @EFX_FILTER_UNSPEC: Match type is unspecified
 *
 * Falcon NICs only support the RX TCP/IPv4 and UDP/IPv4 filter types.
 * Falcon NICs only support the TCP/IPv4 and UDP/IPv4 filter types.
 */
enum efx_filter_type {
	EFX_FILTER_RX_TCP_FULL = 0,
	EFX_FILTER_RX_TCP_WILD,
	EFX_FILTER_RX_UDP_FULL,
	EFX_FILTER_RX_UDP_WILD,
	EFX_FILTER_RX_MAC_FULL = 4,
	EFX_FILTER_RX_MAC_WILD,
	EFX_FILTER_TYPE_COUNT,
	EFX_FILTER_TCP_FULL = 0,
	EFX_FILTER_TCP_WILD,
	EFX_FILTER_UDP_FULL,
	EFX_FILTER_UDP_WILD,
	EFX_FILTER_MAC_FULL = 4,
	EFX_FILTER_MAC_WILD,
	EFX_FILTER_TYPE_COUNT,		/* number of specific types */
	EFX_FILTER_UNSPEC = 0xf,
};

/**
@@ -63,13 +59,13 @@ enum efx_filter_priority {
 * @EFX_FILTER_FLAG_RX_OVERRIDE_IP: Enables a MAC filter to override
 *	any IP filter that matches the same packet.  By default, IP
 *	filters take precedence.
 *
 * Currently, no flags are defined for TX filters.
 * @EFX_FILTER_FLAG_RX: Filter is for RX
 */
enum efx_filter_flags {
	EFX_FILTER_FLAG_RX_RSS = 0x01,
	EFX_FILTER_FLAG_RX_SCATTER = 0x02,
	EFX_FILTER_FLAG_RX_OVERRIDE_IP = 0x04,
	EFX_FILTER_FLAG_RX = 0x08,
};

/**
@@ -91,99 +87,26 @@ struct efx_filter_spec {
	u32	data[3];
};

/**
 * efx_filter_set_rx_tcp_full - specify RX filter with TCP/IPv4 full match
 * @spec: Specification to initialise
 * @shost: Source host address (host byte order)
 * @sport: Source port (host byte order)
 * @dhost: Destination host address (host byte order)
 * @dport: Destination port (host byte order)
 */
static inline void
efx_filter_set_rx_tcp_full(struct efx_filter_spec *spec,
			   u32 shost, u16 sport, u32 dhost, u16 dport)
{
	spec->type = EFX_FILTER_RX_TCP_FULL;
	spec->data[0] = sport | shost << 16;
	spec->data[1] = dport << 16 | shost >> 16;
	spec->data[2] = dhost;
}

/**
 * efx_filter_set_rx_tcp_wild - specify RX filter with TCP/IPv4 wildcard match
 * @spec: Specification to initialise
 * @dhost: Destination host address (host byte order)
 * @dport: Destination port (host byte order)
 */
static inline void
efx_filter_set_rx_tcp_wild(struct efx_filter_spec *spec, u32 dhost, u16 dport)
{
	spec->type = EFX_FILTER_RX_TCP_WILD;
	spec->data[0] = 0;
	spec->data[1] = dport << 16;
	spec->data[2] = dhost;
}

/**
 * efx_filter_set_rx_udp_full - specify RX filter with UDP/IPv4 full match
 * @spec: Specification to initialise
 * @shost: Source host address (host byte order)
 * @sport: Source port (host byte order)
 * @dhost: Destination host address (host byte order)
 * @dport: Destination port (host byte order)
 */
static inline void
efx_filter_set_rx_udp_full(struct efx_filter_spec *spec,
			   u32 shost, u16 sport, u32 dhost, u16 dport)
{
	spec->type = EFX_FILTER_RX_UDP_FULL;
	spec->data[0] = sport | shost << 16;
	spec->data[1] = dport << 16 | shost >> 16;
	spec->data[2] = dhost;
}

/**
 * efx_filter_set_rx_udp_wild - specify RX filter with UDP/IPv4 wildcard match
 * @spec: Specification to initialise
 * @dhost: Destination host address (host byte order)
 * @dport: Destination port (host byte order)
 */
static inline void
efx_filter_set_rx_udp_wild(struct efx_filter_spec *spec, u32 dhost, u16 dport)
static inline void efx_filter_init_rx(struct efx_filter_spec *spec,
				      enum efx_filter_priority priority,
				      enum efx_filter_flags flags,
				      unsigned rxq_id)
{
	spec->type = EFX_FILTER_RX_UDP_WILD;
	spec->data[0] = dport;
	spec->data[1] = 0;
	spec->data[2] = dhost;
	spec->type = EFX_FILTER_UNSPEC;
	spec->priority = priority;
	spec->flags = EFX_FILTER_FLAG_RX | flags;
	spec->dmaq_id = rxq_id;
}

/**
 * efx_filter_set_rx_mac_full - specify RX filter with MAC full match
 * @spec: Specification to initialise
 * @vid: VLAN ID
 * @addr: Destination MAC address
 */
static inline void efx_filter_set_rx_mac_full(struct efx_filter_spec *spec,
					      u16 vid, const u8 *addr)
{
	spec->type = EFX_FILTER_RX_MAC_FULL;
	spec->data[0] = vid;
	spec->data[1] = addr[2] << 24 | addr[3] << 16 | addr[4] << 8 | addr[5];
	spec->data[2] = addr[0] << 8 | addr[1];
}

/**
 * efx_filter_set_rx_mac_full - specify RX filter with MAC wildcard match
 * @spec: Specification to initialise
 * @addr: Destination MAC address
 */
static inline void efx_filter_set_rx_mac_wild(struct efx_filter_spec *spec,
					      const u8 *addr)
{
	spec->type = EFX_FILTER_RX_MAC_WILD;
	spec->data[0] = 0;
	spec->data[1] = addr[2] << 24 | addr[3] << 16 | addr[4] << 8 | addr[5];
	spec->data[2] = addr[0] << 8 | addr[1];
}
extern int efx_filter_set_ipv4_local(struct efx_filter_spec *spec, u8 proto,
				     __be32 host, __be16 port);
extern int efx_filter_set_ipv4_full(struct efx_filter_spec *spec, u8 proto,
				    __be32 host, __be16 port,
				    __be32 rhost, __be16 rport);
extern int efx_filter_set_eth_local(struct efx_filter_spec *spec,
				    u16 vid, const u8 *addr);
enum {
	EFX_FILTER_VID_UNSPEC = 0xffff,
};

#endif /* EFX_FILTER_H */
+88 −65

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