--- /dev/null
+/*
+ * Copyright (c) 2007-2016 Solarflare Communications Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are
+ * those of the authors and should not be interpreted as representing official
+ * policies, either expressed or implied, of the FreeBSD Project.
+ */
+
+#include "efx.h"
+#include "efx_impl.h"
+
+#if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD
+
+#if EFSYS_OPT_FILTER
+
+#define EFE_SPEC(eftp, index) ((eftp)->eft_entry[(index)].efe_spec)
+
+static efx_filter_spec_t *
+ef10_filter_entry_spec(
+ __in const ef10_filter_table_t *eftp,
+ __in unsigned int index)
+{
+ return ((efx_filter_spec_t *)(EFE_SPEC(eftp, index) &
+ ~(uintptr_t)EFX_EF10_FILTER_FLAGS));
+}
+
+static boolean_t
+ef10_filter_entry_is_busy(
+ __in const ef10_filter_table_t *eftp,
+ __in unsigned int index)
+{
+ if (EFE_SPEC(eftp, index) & EFX_EF10_FILTER_FLAG_BUSY)
+ return (B_TRUE);
+ else
+ return (B_FALSE);
+}
+
+static boolean_t
+ef10_filter_entry_is_auto_old(
+ __in const ef10_filter_table_t *eftp,
+ __in unsigned int index)
+{
+ if (EFE_SPEC(eftp, index) & EFX_EF10_FILTER_FLAG_AUTO_OLD)
+ return (B_TRUE);
+ else
+ return (B_FALSE);
+}
+
+static void
+ef10_filter_set_entry(
+ __inout ef10_filter_table_t *eftp,
+ __in unsigned int index,
+ __in_opt const efx_filter_spec_t *efsp)
+{
+ EFE_SPEC(eftp, index) = (uintptr_t)efsp;
+}
+
+static void
+ef10_filter_set_entry_busy(
+ __inout ef10_filter_table_t *eftp,
+ __in unsigned int index)
+{
+ EFE_SPEC(eftp, index) |= (uintptr_t)EFX_EF10_FILTER_FLAG_BUSY;
+}
+
+static void
+ef10_filter_set_entry_not_busy(
+ __inout ef10_filter_table_t *eftp,
+ __in unsigned int index)
+{
+ EFE_SPEC(eftp, index) &= ~(uintptr_t)EFX_EF10_FILTER_FLAG_BUSY;
+}
+
+static void
+ef10_filter_set_entry_auto_old(
+ __inout ef10_filter_table_t *eftp,
+ __in unsigned int index)
+{
+ EFSYS_ASSERT(ef10_filter_entry_spec(eftp, index) != NULL);
+ EFE_SPEC(eftp, index) |= (uintptr_t)EFX_EF10_FILTER_FLAG_AUTO_OLD;
+}
+
+static void
+ef10_filter_set_entry_not_auto_old(
+ __inout ef10_filter_table_t *eftp,
+ __in unsigned int index)
+{
+ EFE_SPEC(eftp, index) &= ~(uintptr_t)EFX_EF10_FILTER_FLAG_AUTO_OLD;
+ EFSYS_ASSERT(ef10_filter_entry_spec(eftp, index) != NULL);
+}
+
+ __checkReturn efx_rc_t
+ef10_filter_init(
+ __in efx_nic_t *enp)
+{
+ efx_rc_t rc;
+ ef10_filter_table_t *eftp;
+
+ EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
+ enp->en_family == EFX_FAMILY_MEDFORD);
+
+#define MATCH_MASK(match) (EFX_MASK32(match) << EFX_LOW_BIT(match))
+ EFX_STATIC_ASSERT(EFX_FILTER_MATCH_REM_HOST ==
+ MATCH_MASK(MC_CMD_FILTER_OP_IN_MATCH_SRC_IP));
+ EFX_STATIC_ASSERT(EFX_FILTER_MATCH_LOC_HOST ==
+ MATCH_MASK(MC_CMD_FILTER_OP_IN_MATCH_DST_IP));
+ EFX_STATIC_ASSERT(EFX_FILTER_MATCH_REM_MAC ==
+ MATCH_MASK(MC_CMD_FILTER_OP_IN_MATCH_SRC_MAC));
+ EFX_STATIC_ASSERT(EFX_FILTER_MATCH_REM_PORT ==
+ MATCH_MASK(MC_CMD_FILTER_OP_IN_MATCH_SRC_PORT));
+ EFX_STATIC_ASSERT(EFX_FILTER_MATCH_LOC_MAC ==
+ MATCH_MASK(MC_CMD_FILTER_OP_IN_MATCH_DST_MAC));
+ EFX_STATIC_ASSERT(EFX_FILTER_MATCH_LOC_PORT ==
+ MATCH_MASK(MC_CMD_FILTER_OP_IN_MATCH_DST_PORT));
+ EFX_STATIC_ASSERT(EFX_FILTER_MATCH_ETHER_TYPE ==
+ MATCH_MASK(MC_CMD_FILTER_OP_IN_MATCH_ETHER_TYPE));
+ EFX_STATIC_ASSERT(EFX_FILTER_MATCH_INNER_VID ==
+ MATCH_MASK(MC_CMD_FILTER_OP_IN_MATCH_INNER_VLAN));
+ EFX_STATIC_ASSERT(EFX_FILTER_MATCH_OUTER_VID ==
+ MATCH_MASK(MC_CMD_FILTER_OP_IN_MATCH_OUTER_VLAN));
+ EFX_STATIC_ASSERT(EFX_FILTER_MATCH_IP_PROTO ==
+ MATCH_MASK(MC_CMD_FILTER_OP_IN_MATCH_IP_PROTO));
+ EFX_STATIC_ASSERT(EFX_FILTER_MATCH_UNKNOWN_MCAST_DST ==
+ MATCH_MASK(MC_CMD_FILTER_OP_IN_MATCH_UNKNOWN_MCAST_DST));
+ EFX_STATIC_ASSERT((uint32_t)EFX_FILTER_MATCH_UNKNOWN_UCAST_DST ==
+ MATCH_MASK(MC_CMD_FILTER_OP_IN_MATCH_UNKNOWN_UCAST_DST));
+#undef MATCH_MASK
+
+ EFSYS_KMEM_ALLOC(enp->en_esip, sizeof (ef10_filter_table_t), eftp);
+
+ if (!eftp) {
+ rc = ENOMEM;
+ goto fail1;
+ }
+
+ enp->en_filter.ef_ef10_filter_table = eftp;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ void
+ef10_filter_fini(
+ __in efx_nic_t *enp)
+{
+ EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
+ enp->en_family == EFX_FAMILY_MEDFORD);
+
+ if (enp->en_filter.ef_ef10_filter_table != NULL) {
+ EFSYS_KMEM_FREE(enp->en_esip, sizeof (ef10_filter_table_t),
+ enp->en_filter.ef_ef10_filter_table);
+ }
+}
+
+static __checkReturn efx_rc_t
+efx_mcdi_filter_op_add(
+ __in efx_nic_t *enp,
+ __in efx_filter_spec_t *spec,
+ __in unsigned int filter_op,
+ __inout ef10_filter_handle_t *handle)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_FILTER_OP_IN_LEN,
+ MC_CMD_FILTER_OP_OUT_LEN)];
+ efx_rc_t rc;
+
+ memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_FILTER_OP;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_FILTER_OP_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_FILTER_OP_OUT_LEN;
+
+ switch (filter_op) {
+ case MC_CMD_FILTER_OP_IN_OP_REPLACE:
+ MCDI_IN_SET_DWORD(req, FILTER_OP_IN_HANDLE_LO,
+ handle->efh_lo);
+ MCDI_IN_SET_DWORD(req, FILTER_OP_IN_HANDLE_HI,
+ handle->efh_hi);
+ /* Fall through */
+ case MC_CMD_FILTER_OP_IN_OP_INSERT:
+ case MC_CMD_FILTER_OP_IN_OP_SUBSCRIBE:
+ MCDI_IN_SET_DWORD(req, FILTER_OP_IN_OP, filter_op);
+ break;
+ default:
+ EFSYS_ASSERT(0);
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ MCDI_IN_SET_DWORD(req, FILTER_OP_IN_PORT_ID,
+ EVB_PORT_ID_ASSIGNED);
+ MCDI_IN_SET_DWORD(req, FILTER_OP_IN_MATCH_FIELDS,
+ spec->efs_match_flags);
+ MCDI_IN_SET_DWORD(req, FILTER_OP_IN_RX_DEST,
+ MC_CMD_FILTER_OP_IN_RX_DEST_HOST);
+ MCDI_IN_SET_DWORD(req, FILTER_OP_IN_RX_QUEUE,
+ spec->efs_dmaq_id);
+ if (spec->efs_flags & EFX_FILTER_FLAG_RX_RSS) {
+ MCDI_IN_SET_DWORD(req, FILTER_OP_IN_RX_CONTEXT,
+ spec->efs_rss_context);
+ }
+ MCDI_IN_SET_DWORD(req, FILTER_OP_IN_RX_MODE,
+ spec->efs_flags & EFX_FILTER_FLAG_RX_RSS ?
+ MC_CMD_FILTER_OP_IN_RX_MODE_RSS :
+ MC_CMD_FILTER_OP_IN_RX_MODE_SIMPLE);
+ MCDI_IN_SET_DWORD(req, FILTER_OP_IN_TX_DEST,
+ MC_CMD_FILTER_OP_IN_TX_DEST_DEFAULT);
+
+ if (filter_op != MC_CMD_FILTER_OP_IN_OP_REPLACE) {
+ /*
+ * NOTE: Unlike most MCDI requests, the filter fields
+ * are presented in network (big endian) byte order.
+ */
+ memcpy(MCDI_IN2(req, uint8_t, FILTER_OP_IN_SRC_MAC),
+ spec->efs_rem_mac, EFX_MAC_ADDR_LEN);
+ memcpy(MCDI_IN2(req, uint8_t, FILTER_OP_IN_DST_MAC),
+ spec->efs_loc_mac, EFX_MAC_ADDR_LEN);
+
+ MCDI_IN_SET_WORD(req, FILTER_OP_IN_SRC_PORT,
+ __CPU_TO_BE_16(spec->efs_rem_port));
+ MCDI_IN_SET_WORD(req, FILTER_OP_IN_DST_PORT,
+ __CPU_TO_BE_16(spec->efs_loc_port));
+
+ MCDI_IN_SET_WORD(req, FILTER_OP_IN_ETHER_TYPE,
+ __CPU_TO_BE_16(spec->efs_ether_type));
+
+ MCDI_IN_SET_WORD(req, FILTER_OP_IN_INNER_VLAN,
+ __CPU_TO_BE_16(spec->efs_inner_vid));
+ MCDI_IN_SET_WORD(req, FILTER_OP_IN_OUTER_VLAN,
+ __CPU_TO_BE_16(spec->efs_outer_vid));
+
+ /* IP protocol (in low byte, high byte is zero) */
+ MCDI_IN_SET_BYTE(req, FILTER_OP_IN_IP_PROTO,
+ spec->efs_ip_proto);
+
+ EFX_STATIC_ASSERT(sizeof (spec->efs_rem_host) ==
+ MC_CMD_FILTER_OP_IN_SRC_IP_LEN);
+ EFX_STATIC_ASSERT(sizeof (spec->efs_loc_host) ==
+ MC_CMD_FILTER_OP_IN_DST_IP_LEN);
+
+ memcpy(MCDI_IN2(req, uint8_t, FILTER_OP_IN_SRC_IP),
+ &spec->efs_rem_host.eo_byte[0],
+ MC_CMD_FILTER_OP_IN_SRC_IP_LEN);
+ memcpy(MCDI_IN2(req, uint8_t, FILTER_OP_IN_DST_IP),
+ &spec->efs_loc_host.eo_byte[0],
+ MC_CMD_FILTER_OP_IN_DST_IP_LEN);
+ }
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail2;
+ }
+
+ if (req.emr_out_length_used < MC_CMD_FILTER_OP_OUT_LEN) {
+ rc = EMSGSIZE;
+ goto fail3;
+ }
+
+ handle->efh_lo = MCDI_OUT_DWORD(req, FILTER_OP_OUT_HANDLE_LO);
+ handle->efh_hi = MCDI_OUT_DWORD(req, FILTER_OP_OUT_HANDLE_HI);
+
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+
+}
+
+static __checkReturn efx_rc_t
+efx_mcdi_filter_op_delete(
+ __in efx_nic_t *enp,
+ __in unsigned int filter_op,
+ __inout ef10_filter_handle_t *handle)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_FILTER_OP_IN_LEN,
+ MC_CMD_FILTER_OP_OUT_LEN)];
+ efx_rc_t rc;
+
+ memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_FILTER_OP;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_FILTER_OP_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_FILTER_OP_OUT_LEN;
+
+ switch (filter_op) {
+ case MC_CMD_FILTER_OP_IN_OP_REMOVE:
+ MCDI_IN_SET_DWORD(req, FILTER_OP_IN_OP,
+ MC_CMD_FILTER_OP_IN_OP_REMOVE);
+ break;
+ case MC_CMD_FILTER_OP_IN_OP_UNSUBSCRIBE:
+ MCDI_IN_SET_DWORD(req, FILTER_OP_IN_OP,
+ MC_CMD_FILTER_OP_IN_OP_UNSUBSCRIBE);
+ break;
+ default:
+ EFSYS_ASSERT(0);
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ MCDI_IN_SET_DWORD(req, FILTER_OP_IN_HANDLE_LO, handle->efh_lo);
+ MCDI_IN_SET_DWORD(req, FILTER_OP_IN_HANDLE_HI, handle->efh_hi);
+
+ efx_mcdi_execute_quiet(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail2;
+ }
+
+ if (req.emr_out_length_used < MC_CMD_FILTER_OP_OUT_LEN) {
+ rc = EMSGSIZE;
+ goto fail3;
+ }
+
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+static __checkReturn boolean_t
+ef10_filter_equal(
+ __in const efx_filter_spec_t *left,
+ __in const efx_filter_spec_t *right)
+{
+ /* FIXME: Consider rx vs tx filters (look at efs_flags) */
+ if (left->efs_match_flags != right->efs_match_flags)
+ return (B_FALSE);
+ if (!EFX_OWORD_IS_EQUAL(left->efs_rem_host, right->efs_rem_host))
+ return (B_FALSE);
+ if (!EFX_OWORD_IS_EQUAL(left->efs_loc_host, right->efs_loc_host))
+ return (B_FALSE);
+ if (memcmp(left->efs_rem_mac, right->efs_rem_mac, EFX_MAC_ADDR_LEN))
+ return (B_FALSE);
+ if (memcmp(left->efs_loc_mac, right->efs_loc_mac, EFX_MAC_ADDR_LEN))
+ return (B_FALSE);
+ if (left->efs_rem_port != right->efs_rem_port)
+ return (B_FALSE);
+ if (left->efs_loc_port != right->efs_loc_port)
+ return (B_FALSE);
+ if (left->efs_inner_vid != right->efs_inner_vid)
+ return (B_FALSE);
+ if (left->efs_outer_vid != right->efs_outer_vid)
+ return (B_FALSE);
+ if (left->efs_ether_type != right->efs_ether_type)
+ return (B_FALSE);
+ if (left->efs_ip_proto != right->efs_ip_proto)
+ return (B_FALSE);
+
+ return (B_TRUE);
+
+}
+
+static __checkReturn boolean_t
+ef10_filter_same_dest(
+ __in const efx_filter_spec_t *left,
+ __in const efx_filter_spec_t *right)
+{
+ if ((left->efs_flags & EFX_FILTER_FLAG_RX_RSS) &&
+ (right->efs_flags & EFX_FILTER_FLAG_RX_RSS)) {
+ if (left->efs_rss_context == right->efs_rss_context)
+ return (B_TRUE);
+ } else if ((~(left->efs_flags) & EFX_FILTER_FLAG_RX_RSS) &&
+ (~(right->efs_flags) & EFX_FILTER_FLAG_RX_RSS)) {
+ if (left->efs_dmaq_id == right->efs_dmaq_id)
+ return (B_TRUE);
+ }
+ return (B_FALSE);
+}
+
+static __checkReturn uint32_t
+ef10_filter_hash(
+ __in efx_filter_spec_t *spec)
+{
+ EFX_STATIC_ASSERT((sizeof (efx_filter_spec_t) % sizeof (uint32_t))
+ == 0);
+ EFX_STATIC_ASSERT((EFX_FIELD_OFFSET(efx_filter_spec_t, efs_outer_vid) %
+ sizeof (uint32_t)) == 0);
+
+ /*
+ * As the area of the efx_filter_spec_t we need to hash is DWORD
+ * aligned and an exact number of DWORDs in size we can use the
+ * optimised efx_hash_dwords() rather than efx_hash_bytes()
+ */
+ return (efx_hash_dwords((const uint32_t *)&spec->efs_outer_vid,
+ (sizeof (efx_filter_spec_t) -
+ EFX_FIELD_OFFSET(efx_filter_spec_t, efs_outer_vid)) /
+ sizeof (uint32_t), 0));
+}
+
+/*
+ * Decide whether a filter should be exclusive or else should allow
+ * delivery to additional recipients. Currently we decide that
+ * filters for specific local unicast MAC and IP addresses are
+ * exclusive.
+ */
+static __checkReturn boolean_t
+ef10_filter_is_exclusive(
+ __in efx_filter_spec_t *spec)
+{
+ if ((spec->efs_match_flags & EFX_FILTER_MATCH_LOC_MAC) &&
+ !EFX_MAC_ADDR_IS_MULTICAST(spec->efs_loc_mac))
+ return (B_TRUE);
+
+ if ((spec->efs_match_flags &
+ (EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_LOC_HOST)) ==
+ (EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_LOC_HOST)) {
+ if ((spec->efs_ether_type == EFX_ETHER_TYPE_IPV4) &&
+ ((spec->efs_loc_host.eo_u8[0] & 0xf) != 0xe))
+ return (B_TRUE);
+ if ((spec->efs_ether_type == EFX_ETHER_TYPE_IPV6) &&
+ (spec->efs_loc_host.eo_u8[0] != 0xff))
+ return (B_TRUE);
+ }
+
+ return (B_FALSE);
+}
+
+ __checkReturn efx_rc_t
+ef10_filter_restore(
+ __in efx_nic_t *enp)
+{
+ int tbl_id;
+ efx_filter_spec_t *spec;
+ ef10_filter_table_t *eftp = enp->en_filter.ef_ef10_filter_table;
+ boolean_t restoring;
+ efsys_lock_state_t state;
+ efx_rc_t rc;
+
+ EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
+ enp->en_family == EFX_FAMILY_MEDFORD);
+
+ for (tbl_id = 0; tbl_id < EFX_EF10_FILTER_TBL_ROWS; tbl_id++) {
+
+ EFSYS_LOCK(enp->en_eslp, state);
+
+ spec = ef10_filter_entry_spec(eftp, tbl_id);
+ if (spec == NULL) {
+ restoring = B_FALSE;
+ } else if (ef10_filter_entry_is_busy(eftp, tbl_id)) {
+ /* Ignore busy entries. */
+ restoring = B_FALSE;
+ } else {
+ ef10_filter_set_entry_busy(eftp, tbl_id);
+ restoring = B_TRUE;
+ }
+
+ EFSYS_UNLOCK(enp->en_eslp, state);
+
+ if (restoring == B_FALSE)
+ continue;
+
+ if (ef10_filter_is_exclusive(spec)) {
+ rc = efx_mcdi_filter_op_add(enp, spec,
+ MC_CMD_FILTER_OP_IN_OP_INSERT,
+ &eftp->eft_entry[tbl_id].efe_handle);
+ } else {
+ rc = efx_mcdi_filter_op_add(enp, spec,
+ MC_CMD_FILTER_OP_IN_OP_SUBSCRIBE,
+ &eftp->eft_entry[tbl_id].efe_handle);
+ }
+
+ if (rc != 0)
+ goto fail1;
+
+ EFSYS_LOCK(enp->en_eslp, state);
+
+ ef10_filter_set_entry_not_busy(eftp, tbl_id);
+
+ EFSYS_UNLOCK(enp->en_eslp, state);
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+/*
+ * An arbitrary search limit for the software hash table. As per the linux net
+ * driver.
+ */
+#define EF10_FILTER_SEARCH_LIMIT 200
+
+static __checkReturn efx_rc_t
+ef10_filter_add_internal(
+ __in efx_nic_t *enp,
+ __inout efx_filter_spec_t *spec,
+ __in boolean_t may_replace,
+ __out_opt uint32_t *filter_id)
+{
+ efx_rc_t rc;
+ ef10_filter_table_t *eftp = enp->en_filter.ef_ef10_filter_table;
+ efx_filter_spec_t *saved_spec;
+ uint32_t hash;
+ unsigned int depth;
+ int ins_index;
+ boolean_t replacing = B_FALSE;
+ unsigned int i;
+ efsys_lock_state_t state;
+ boolean_t locked = B_FALSE;
+
+ EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
+ enp->en_family == EFX_FAMILY_MEDFORD);
+
+#if EFSYS_OPT_RX_SCALE
+ spec->efs_rss_context = enp->en_rss_context;
+#endif
+
+ hash = ef10_filter_hash(spec);
+
+ /*
+ * FIXME: Add support for inserting filters of different priorities
+ * and removing lower priority multicast filters (bug 42378)
+ */
+
+ /*
+ * Find any existing filters with the same match tuple or
+ * else a free slot to insert at. If any of them are busy,
+ * we have to wait and retry.
+ */
+ for (;;) {
+ ins_index = -1;
+ depth = 1;
+ EFSYS_LOCK(enp->en_eslp, state);
+ locked = B_TRUE;
+
+ for (;;) {
+ i = (hash + depth) & (EFX_EF10_FILTER_TBL_ROWS - 1);
+ saved_spec = ef10_filter_entry_spec(eftp, i);
+
+ if (!saved_spec) {
+ if (ins_index < 0) {
+ ins_index = i;
+ }
+ } else if (ef10_filter_equal(spec, saved_spec)) {
+ if (ef10_filter_entry_is_busy(eftp, i))
+ break;
+ if (saved_spec->efs_priority
+ == EFX_FILTER_PRI_AUTO) {
+ ins_index = i;
+ goto found;
+ } else if (ef10_filter_is_exclusive(spec)) {
+ if (may_replace) {
+ ins_index = i;
+ goto found;
+ } else {
+ rc = EEXIST;
+ goto fail1;
+ }
+ }
+
+ /* Leave existing */
+ }
+
+ /*
+ * Once we reach the maximum search depth, use
+ * the first suitable slot or return EBUSY if
+ * there was none.
+ */
+ if (depth == EF10_FILTER_SEARCH_LIMIT) {
+ if (ins_index < 0) {
+ rc = EBUSY;
+ goto fail2;
+ }
+ goto found;
+ }
+ depth++;
+ }
+ EFSYS_UNLOCK(enp->en_eslp, state);
+ locked = B_FALSE;
+ }
+
+found:
+ /*
+ * Create a software table entry if necessary, and mark it
+ * busy. We might yet fail to insert, but any attempt to
+ * insert a conflicting filter while we're waiting for the
+ * firmware must find the busy entry.
+ */
+ saved_spec = ef10_filter_entry_spec(eftp, ins_index);
+ if (saved_spec) {
+ if (saved_spec->efs_priority == EFX_FILTER_PRI_AUTO) {
+ /* This is a filter we are refreshing */
+ ef10_filter_set_entry_not_auto_old(eftp, ins_index);
+ goto out_unlock;
+
+ }
+ replacing = B_TRUE;
+ } else {
+ EFSYS_KMEM_ALLOC(enp->en_esip, sizeof (*spec), saved_spec);
+ if (!saved_spec) {
+ rc = ENOMEM;
+ goto fail3;
+ }
+ *saved_spec = *spec;
+ ef10_filter_set_entry(eftp, ins_index, saved_spec);
+ }
+ ef10_filter_set_entry_busy(eftp, ins_index);
+
+ EFSYS_UNLOCK(enp->en_eslp, state);
+ locked = B_FALSE;
+
+ /*
+ * On replacing the filter handle may change after after a successful
+ * replace operation.
+ */
+ if (replacing) {
+ rc = efx_mcdi_filter_op_add(enp, spec,
+ MC_CMD_FILTER_OP_IN_OP_REPLACE,
+ &eftp->eft_entry[ins_index].efe_handle);
+ } else if (ef10_filter_is_exclusive(spec)) {
+ rc = efx_mcdi_filter_op_add(enp, spec,
+ MC_CMD_FILTER_OP_IN_OP_INSERT,
+ &eftp->eft_entry[ins_index].efe_handle);
+ } else {
+ rc = efx_mcdi_filter_op_add(enp, spec,
+ MC_CMD_FILTER_OP_IN_OP_SUBSCRIBE,
+ &eftp->eft_entry[ins_index].efe_handle);
+ }
+
+ if (rc != 0)
+ goto fail4;
+
+ EFSYS_LOCK(enp->en_eslp, state);
+ locked = B_TRUE;
+
+ if (replacing) {
+ /* Update the fields that may differ */
+ saved_spec->efs_priority = spec->efs_priority;
+ saved_spec->efs_flags = spec->efs_flags;
+ saved_spec->efs_rss_context = spec->efs_rss_context;
+ saved_spec->efs_dmaq_id = spec->efs_dmaq_id;
+ }
+
+ ef10_filter_set_entry_not_busy(eftp, ins_index);
+
+out_unlock:
+
+ EFSYS_UNLOCK(enp->en_eslp, state);
+ locked = B_FALSE;
+
+ if (filter_id)
+ *filter_id = ins_index;
+
+ return (0);
+
+fail4:
+ EFSYS_PROBE(fail4);
+
+ if (!replacing) {
+ EFSYS_KMEM_FREE(enp->en_esip, sizeof (*spec), saved_spec);
+ saved_spec = NULL;
+ }
+ ef10_filter_set_entry_not_busy(eftp, ins_index);
+ ef10_filter_set_entry(eftp, ins_index, NULL);
+
+fail3:
+ EFSYS_PROBE(fail3);
+
+fail2:
+ EFSYS_PROBE(fail2);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ if (locked)
+ EFSYS_UNLOCK(enp->en_eslp, state);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+ef10_filter_add(
+ __in efx_nic_t *enp,
+ __inout efx_filter_spec_t *spec,
+ __in boolean_t may_replace)
+{
+ efx_rc_t rc;
+
+ rc = ef10_filter_add_internal(enp, spec, may_replace, NULL);
+ if (rc != 0)
+ goto fail1;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+
+static __checkReturn efx_rc_t
+ef10_filter_delete_internal(
+ __in efx_nic_t *enp,
+ __in uint32_t filter_id)
+{
+ efx_rc_t rc;
+ ef10_filter_table_t *table = enp->en_filter.ef_ef10_filter_table;
+ efx_filter_spec_t *spec;
+ efsys_lock_state_t state;
+ uint32_t filter_idx = filter_id % EFX_EF10_FILTER_TBL_ROWS;
+
+ /*
+ * Find the software table entry and mark it busy. Don't
+ * remove it yet; any attempt to update while we're waiting
+ * for the firmware must find the busy entry.
+ *
+ * FIXME: What if the busy flag is never cleared?
+ */
+ EFSYS_LOCK(enp->en_eslp, state);
+ while (ef10_filter_entry_is_busy(table, filter_idx)) {
+ EFSYS_UNLOCK(enp->en_eslp, state);
+ EFSYS_SPIN(1);
+ EFSYS_LOCK(enp->en_eslp, state);
+ }
+ if ((spec = ef10_filter_entry_spec(table, filter_idx)) != NULL) {
+ ef10_filter_set_entry_busy(table, filter_idx);
+ }
+ EFSYS_UNLOCK(enp->en_eslp, state);
+
+ if (spec == NULL) {
+ rc = ENOENT;
+ goto fail1;
+ }
+
+ /*
+ * Try to remove the hardware filter. This may fail if the MC has
+ * rebooted (which frees all hardware filter resources).
+ */
+ if (ef10_filter_is_exclusive(spec)) {
+ rc = efx_mcdi_filter_op_delete(enp,
+ MC_CMD_FILTER_OP_IN_OP_REMOVE,
+ &table->eft_entry[filter_idx].efe_handle);
+ } else {
+ rc = efx_mcdi_filter_op_delete(enp,
+ MC_CMD_FILTER_OP_IN_OP_UNSUBSCRIBE,
+ &table->eft_entry[filter_idx].efe_handle);
+ }
+
+ /* Free the software table entry */
+ EFSYS_LOCK(enp->en_eslp, state);
+ ef10_filter_set_entry_not_busy(table, filter_idx);
+ ef10_filter_set_entry(table, filter_idx, NULL);
+ EFSYS_UNLOCK(enp->en_eslp, state);
+
+ EFSYS_KMEM_FREE(enp->en_esip, sizeof (*spec), spec);
+
+ /* Check result of hardware filter removal */
+ if (rc != 0)
+ goto fail2;
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+ef10_filter_delete(
+ __in efx_nic_t *enp,
+ __inout efx_filter_spec_t *spec)
+{
+ efx_rc_t rc;
+ ef10_filter_table_t *table = enp->en_filter.ef_ef10_filter_table;
+ efx_filter_spec_t *saved_spec;
+ unsigned int hash;
+ unsigned int depth;
+ unsigned int i;
+ efsys_lock_state_t state;
+ boolean_t locked = B_FALSE;
+
+ EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
+ enp->en_family == EFX_FAMILY_MEDFORD);
+
+ hash = ef10_filter_hash(spec);
+
+ EFSYS_LOCK(enp->en_eslp, state);
+ locked = B_TRUE;
+
+ depth = 1;
+ for (;;) {
+ i = (hash + depth) & (EFX_EF10_FILTER_TBL_ROWS - 1);
+ saved_spec = ef10_filter_entry_spec(table, i);
+ if (saved_spec && ef10_filter_equal(spec, saved_spec) &&
+ ef10_filter_same_dest(spec, saved_spec)) {
+ break;
+ }
+ if (depth == EF10_FILTER_SEARCH_LIMIT) {
+ rc = ENOENT;
+ goto fail1;
+ }
+ depth++;
+ }
+
+ EFSYS_UNLOCK(enp->en_eslp, state);
+ locked = B_FALSE;
+
+ rc = ef10_filter_delete_internal(enp, i);
+ if (rc != 0)
+ goto fail2;
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ if (locked)
+ EFSYS_UNLOCK(enp->en_eslp, state);
+
+ return (rc);
+}
+
+static __checkReturn efx_rc_t
+efx_mcdi_get_parser_disp_info(
+ __in efx_nic_t *enp,
+ __out_ecount(buffer_length) uint32_t *buffer,
+ __in size_t buffer_length,
+ __out size_t *list_lengthp)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_GET_PARSER_DISP_INFO_IN_LEN,
+ MC_CMD_GET_PARSER_DISP_INFO_OUT_LENMAX)];
+ size_t matches_count;
+ size_t list_size;
+ efx_rc_t rc;
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_GET_PARSER_DISP_INFO;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_GET_PARSER_DISP_INFO_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_GET_PARSER_DISP_INFO_OUT_LENMAX;
+
+ MCDI_IN_SET_DWORD(req, GET_PARSER_DISP_INFO_OUT_OP,
+ MC_CMD_GET_PARSER_DISP_INFO_IN_OP_GET_SUPPORTED_RX_MATCHES);
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ matches_count = MCDI_OUT_DWORD(req,
+ GET_PARSER_DISP_INFO_OUT_NUM_SUPPORTED_MATCHES);
+
+ if (req.emr_out_length_used <
+ MC_CMD_GET_PARSER_DISP_INFO_OUT_LEN(matches_count)) {
+ rc = EMSGSIZE;
+ goto fail2;
+ }
+
+ *list_lengthp = matches_count;
+
+ if (buffer_length < matches_count) {
+ rc = ENOSPC;
+ goto fail3;
+ }
+
+ /*
+ * Check that the elements in the list in the MCDI response are the size
+ * we expect, so we can just copy them directly. Any conversion of the
+ * flags is handled by the caller.
+ */
+ EFX_STATIC_ASSERT(sizeof (uint32_t) ==
+ MC_CMD_GET_PARSER_DISP_INFO_OUT_SUPPORTED_MATCHES_LEN);
+
+ list_size = matches_count *
+ MC_CMD_GET_PARSER_DISP_INFO_OUT_SUPPORTED_MATCHES_LEN;
+ memcpy(buffer,
+ MCDI_OUT2(req, uint32_t,
+ GET_PARSER_DISP_INFO_OUT_SUPPORTED_MATCHES),
+ list_size);
+
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+ef10_filter_supported_filters(
+ __in efx_nic_t *enp,
+ __out_ecount(buffer_length) uint32_t *buffer,
+ __in size_t buffer_length,
+ __out size_t *list_lengthp)
+{
+
+ size_t mcdi_list_length;
+ size_t list_length;
+ uint32_t i;
+ efx_rc_t rc;
+ uint32_t all_filter_flags =
+ (EFX_FILTER_MATCH_REM_HOST | EFX_FILTER_MATCH_LOC_HOST |
+ EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_REM_PORT |
+ EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_PORT |
+ EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_INNER_VID |
+ EFX_FILTER_MATCH_OUTER_VID | EFX_FILTER_MATCH_IP_PROTO |
+ EFX_FILTER_MATCH_UNKNOWN_MCAST_DST |
+ EFX_FILTER_MATCH_UNKNOWN_UCAST_DST);
+
+ rc = efx_mcdi_get_parser_disp_info(enp, buffer, buffer_length,
+ &mcdi_list_length);
+ if (rc != 0) {
+ if (rc == ENOSPC) {
+ /* Pass through mcdi_list_length for the list length */
+ *list_lengthp = mcdi_list_length;
+ }
+ goto fail1;
+ }
+
+ /*
+ * The static assertions in ef10_filter_init() ensure that the values of
+ * the EFX_FILTER_MATCH flags match those used by MCDI, so they don't
+ * need to be converted.
+ *
+ * In case support is added to MCDI for additional flags, remove any
+ * matches from the list which include flags we don't support. The order
+ * of the matches is preserved as they are ordered from highest to
+ * lowest priority.
+ */
+ EFSYS_ASSERT(mcdi_list_length <= buffer_length);
+ list_length = 0;
+ for (i = 0; i < mcdi_list_length; i++) {
+ if ((buffer[i] & ~all_filter_flags) == 0) {
+ buffer[list_length] = buffer[i];
+ list_length++;
+ }
+ }
+
+ *list_lengthp = list_length;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+static __checkReturn efx_rc_t
+ef10_filter_insert_unicast(
+ __in efx_nic_t *enp,
+ __in_ecount(6) uint8_t const *addr,
+ __in efx_filter_flags_t filter_flags)
+{
+ ef10_filter_table_t *eftp = enp->en_filter.ef_ef10_filter_table;
+ efx_filter_spec_t spec;
+ efx_rc_t rc;
+
+ /* Insert the filter for the local station address */
+ efx_filter_spec_init_rx(&spec, EFX_FILTER_PRI_AUTO,
+ filter_flags,
+ eftp->eft_default_rxq);
+ efx_filter_spec_set_eth_local(&spec, EFX_FILTER_SPEC_VID_UNSPEC, addr);
+
+ rc = ef10_filter_add_internal(enp, &spec, B_TRUE,
+ &eftp->eft_unicst_filter_indexes[eftp->eft_unicst_filter_count]);
+ if (rc != 0)
+ goto fail1;
+
+ eftp->eft_unicst_filter_count++;
+ EFSYS_ASSERT(eftp->eft_unicst_filter_count <=
+ EFX_EF10_FILTER_UNICAST_FILTERS_MAX);
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+ return (rc);
+}
+
+static __checkReturn efx_rc_t
+ef10_filter_insert_all_unicast(
+ __in efx_nic_t *enp,
+ __in efx_filter_flags_t filter_flags)
+{
+ ef10_filter_table_t *eftp = enp->en_filter.ef_ef10_filter_table;
+ efx_filter_spec_t spec;
+ efx_rc_t rc;
+
+ /* Insert the unknown unicast filter */
+ efx_filter_spec_init_rx(&spec, EFX_FILTER_PRI_AUTO,
+ filter_flags,
+ eftp->eft_default_rxq);
+ efx_filter_spec_set_uc_def(&spec);
+ rc = ef10_filter_add_internal(enp, &spec, B_TRUE,
+ &eftp->eft_unicst_filter_indexes[eftp->eft_unicst_filter_count]);
+ if (rc != 0)
+ goto fail1;
+
+ eftp->eft_unicst_filter_count++;
+ EFSYS_ASSERT(eftp->eft_unicst_filter_count <=
+ EFX_EF10_FILTER_UNICAST_FILTERS_MAX);
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+ return (rc);
+}
+
+static __checkReturn efx_rc_t
+ef10_filter_insert_multicast_list(
+ __in efx_nic_t *enp,
+ __in boolean_t mulcst,
+ __in boolean_t brdcst,
+ __in_ecount(6*count) uint8_t const *addrs,
+ __in uint32_t count,
+ __in efx_filter_flags_t filter_flags,
+ __in boolean_t rollback)
+{
+ ef10_filter_table_t *eftp = enp->en_filter.ef_ef10_filter_table;
+ efx_filter_spec_t spec;
+ uint8_t addr[6];
+ uint32_t i;
+ uint32_t filter_index;
+ uint32_t filter_count;
+ efx_rc_t rc;
+
+ if (mulcst == B_FALSE)
+ count = 0;
+
+ if (count + (brdcst ? 1 : 0) >
+ EFX_ARRAY_SIZE(eftp->eft_mulcst_filter_indexes)) {
+ /* Too many MAC addresses */
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ /* Insert/renew multicast address list filters */
+ filter_count = 0;
+ for (i = 0; i < count; i++) {
+ efx_filter_spec_init_rx(&spec,
+ EFX_FILTER_PRI_AUTO,
+ filter_flags,
+ eftp->eft_default_rxq);
+
+ efx_filter_spec_set_eth_local(&spec,
+ EFX_FILTER_SPEC_VID_UNSPEC,
+ &addrs[i * EFX_MAC_ADDR_LEN]);
+
+ rc = ef10_filter_add_internal(enp, &spec, B_TRUE,
+ &filter_index);
+
+ if (rc == 0) {
+ eftp->eft_mulcst_filter_indexes[filter_count] =
+ filter_index;
+ filter_count++;
+ } else if (rollback == B_TRUE) {
+ /* Only stop upon failure if told to rollback */
+ goto rollback;
+ }
+
+ }
+
+ if (brdcst == B_TRUE) {
+ /* Insert/renew broadcast address filter */
+ efx_filter_spec_init_rx(&spec, EFX_FILTER_PRI_AUTO,
+ filter_flags,
+ eftp->eft_default_rxq);
+
+ EFX_MAC_BROADCAST_ADDR_SET(addr);
+ efx_filter_spec_set_eth_local(&spec, EFX_FILTER_SPEC_VID_UNSPEC,
+ addr);
+
+ rc = ef10_filter_add_internal(enp, &spec, B_TRUE,
+ &filter_index);
+
+ if (rc == 0) {
+ eftp->eft_mulcst_filter_indexes[filter_count] =
+ filter_index;
+ filter_count++;
+ } else if (rollback == B_TRUE) {
+ /* Only stop upon failure if told to rollback */
+ goto rollback;
+ }
+ }
+
+ eftp->eft_mulcst_filter_count = filter_count;
+ eftp->eft_using_all_mulcst = B_FALSE;
+
+ return (0);
+
+rollback:
+ /* Remove any filters we have inserted */
+ i = filter_count;
+ while (i--) {
+ (void) ef10_filter_delete_internal(enp,
+ eftp->eft_mulcst_filter_indexes[i]);
+ }
+ eftp->eft_mulcst_filter_count = 0;
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+static __checkReturn efx_rc_t
+ef10_filter_insert_all_multicast(
+ __in efx_nic_t *enp,
+ __in efx_filter_flags_t filter_flags)
+{
+ ef10_filter_table_t *eftp = enp->en_filter.ef_ef10_filter_table;
+ efx_filter_spec_t spec;
+ efx_rc_t rc;
+
+ /* Insert the unknown multicast filter */
+ efx_filter_spec_init_rx(&spec, EFX_FILTER_PRI_AUTO,
+ filter_flags,
+ eftp->eft_default_rxq);
+ efx_filter_spec_set_mc_def(&spec);
+
+ rc = ef10_filter_add_internal(enp, &spec, B_TRUE,
+ &eftp->eft_mulcst_filter_indexes[0]);
+ if (rc != 0)
+ goto fail1;
+
+ eftp->eft_mulcst_filter_count = 1;
+ eftp->eft_using_all_mulcst = B_TRUE;
+
+ /*
+ * FIXME: If brdcst == B_FALSE, add a filter to drop broadcast traffic.
+ */
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+static void
+ef10_filter_remove_old(
+ __in efx_nic_t *enp)
+{
+ ef10_filter_table_t *table = enp->en_filter.ef_ef10_filter_table;
+ uint32_t i;
+
+ for (i = 0; i < EFX_ARRAY_SIZE(table->eft_entry); i++) {
+ if (ef10_filter_entry_is_auto_old(table, i)) {
+ (void) ef10_filter_delete_internal(enp, i);
+ }
+ }
+}
+
+
+static __checkReturn efx_rc_t
+ef10_filter_get_workarounds(
+ __in efx_nic_t *enp)
+{
+ efx_nic_cfg_t *encp = &enp->en_nic_cfg;
+ uint32_t implemented = 0;
+ uint32_t enabled = 0;
+ efx_rc_t rc;
+
+ rc = efx_mcdi_get_workarounds(enp, &implemented, &enabled);
+ if (rc == 0) {
+ /* Check if chained multicast filter support is enabled */
+ if (implemented & enabled & MC_CMD_GET_WORKAROUNDS_OUT_BUG26807)
+ encp->enc_bug26807_workaround = B_TRUE;
+ else
+ encp->enc_bug26807_workaround = B_FALSE;
+ } else if (rc == ENOTSUP) {
+ /*
+ * Firmware is too old to support GET_WORKAROUNDS, and support
+ * for this workaround was implemented later.
+ */
+ encp->enc_bug26807_workaround = B_FALSE;
+ } else {
+ goto fail1;
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+
+}
+
+
+/*
+ * Reconfigure all filters.
+ * If all_unicst and/or all mulcst filters cannot be applied then
+ * return ENOTSUP (Note the filters for the specified addresses are
+ * still applied in this case).
+ */
+ __checkReturn efx_rc_t
+ef10_filter_reconfigure(
+ __in efx_nic_t *enp,
+ __in_ecount(6) uint8_t const *mac_addr,
+ __in boolean_t all_unicst,
+ __in boolean_t mulcst,
+ __in boolean_t all_mulcst,
+ __in boolean_t brdcst,
+ __in_ecount(6*count) uint8_t const *addrs,
+ __in uint32_t count)
+{
+ efx_nic_cfg_t *encp = &enp->en_nic_cfg;
+ ef10_filter_table_t *table = enp->en_filter.ef_ef10_filter_table;
+ efx_filter_flags_t filter_flags;
+ unsigned int i;
+ efx_rc_t all_unicst_rc = 0;
+ efx_rc_t all_mulcst_rc = 0;
+ efx_rc_t rc;
+
+ if (table->eft_default_rxq == NULL) {
+ /*
+ * Filters direct traffic to the default RXQ, and so cannot be
+ * inserted until it is available. Any currently configured
+ * filters must be removed (ignore errors in case the MC
+ * has rebooted, which removes hardware filters).
+ */
+ for (i = 0; i < table->eft_unicst_filter_count; i++) {
+ (void) ef10_filter_delete_internal(enp,
+ table->eft_unicst_filter_indexes[i]);
+ }
+ table->eft_unicst_filter_count = 0;
+
+ for (i = 0; i < table->eft_mulcst_filter_count; i++) {
+ (void) ef10_filter_delete_internal(enp,
+ table->eft_mulcst_filter_indexes[i]);
+ }
+ table->eft_mulcst_filter_count = 0;
+
+ return (0);
+ }
+
+ if (table->eft_using_rss)
+ filter_flags = EFX_FILTER_FLAG_RX_RSS;
+ else
+ filter_flags = 0;
+
+ /* Mark old filters which may need to be removed */
+ for (i = 0; i < table->eft_unicst_filter_count; i++) {
+ ef10_filter_set_entry_auto_old(table,
+ table->eft_unicst_filter_indexes[i]);
+ }
+ for (i = 0; i < table->eft_mulcst_filter_count; i++) {
+ ef10_filter_set_entry_auto_old(table,
+ table->eft_mulcst_filter_indexes[i]);
+ }
+
+ /*
+ * Insert or renew unicast filters.
+ *
+ * Frimware does not perform chaining on unicast filters. As traffic is
+ * therefore only delivered to the first matching filter, we should
+ * always insert the specific filter for our MAC address, to try and
+ * ensure we get that traffic.
+ *
+ * (If the filter for our MAC address has already been inserted by
+ * another function, we won't receive traffic sent to us, even if we
+ * insert a unicast mismatch filter. To prevent traffic stealing, this
+ * therefore relies on the privilege model only allowing functions to
+ * insert filters for their own MAC address unless explicitly given
+ * additional privileges by the user. This also means that, even on a
+ * priviliged function, inserting a unicast mismatch filter may not
+ * catch all traffic in multi PCI function scenarios.)
+ */
+ table->eft_unicst_filter_count = 0;
+ rc = ef10_filter_insert_unicast(enp, mac_addr, filter_flags);
+ if (all_unicst || (rc != 0)) {
+ all_unicst_rc = ef10_filter_insert_all_unicast(enp,
+ filter_flags);
+ if ((rc != 0) && (all_unicst_rc != 0))
+ goto fail1;
+ }
+
+ /*
+ * WORKAROUND_BUG26807 controls firmware support for chained multicast
+ * filters, and can only be enabled or disabled when the hardware filter
+ * table is empty.
+ *
+ * Chained multicast filters require support from the datapath firmware,
+ * and may not be available (e.g. low-latency variants or old Huntington
+ * firmware).
+ *
+ * Firmware will reset (FLR) functions which have inserted filters in
+ * the hardware filter table when the workaround is enabled/disabled.
+ * Functions without any hardware filters are not reset.
+ *
+ * Re-check if the workaround is enabled after adding unicast hardware
+ * filters. This ensures that encp->enc_bug26807_workaround matches the
+ * firmware state, and that later changes to enable/disable the
+ * workaround will result in this function seeing a reset (FLR).
+ *
+ * In common-code drivers, we only support multiple PCI function
+ * scenarios with firmware that supports multicast chaining, so we can
+ * assume it is enabled for such cases and hence simplify the filter
+ * insertion logic. Firmware that does not support multicast chaining
+ * does not support multiple PCI function configurations either, so
+ * filter insertion is much simpler and the same strategies can still be
+ * used.
+ */
+ if ((rc = ef10_filter_get_workarounds(enp)) != 0)
+ goto fail2;
+
+ if ((table->eft_using_all_mulcst != all_mulcst) &&
+ (encp->enc_bug26807_workaround == B_TRUE)) {
+ /*
+ * Multicast filter chaining is enabled, so traffic that matches
+ * more than one multicast filter will be replicated and
+ * delivered to multiple recipients. To avoid this duplicate
+ * delivery, remove old multicast filters before inserting new
+ * multicast filters.
+ */
+ ef10_filter_remove_old(enp);
+ }
+
+ /* Insert or renew multicast filters */
+ if (all_mulcst == B_TRUE) {
+ /*
+ * Insert the all multicast filter. If that fails, try to insert
+ * all of our multicast filters (but without rollback on
+ * failure).
+ */
+ all_mulcst_rc = ef10_filter_insert_all_multicast(enp,
+ filter_flags);
+ if (all_mulcst_rc != 0) {
+ rc = ef10_filter_insert_multicast_list(enp, B_TRUE,
+ brdcst, addrs, count, filter_flags, B_FALSE);
+ if (rc != 0)
+ goto fail3;
+ }
+ } else {
+ /*
+ * Insert filters for multicast addresses.
+ * If any insertion fails, then rollback and try to insert the
+ * all multicast filter instead.
+ * If that also fails, try to insert all of the multicast
+ * filters (but without rollback on failure).
+ */
+ rc = ef10_filter_insert_multicast_list(enp, mulcst, brdcst,
+ addrs, count, filter_flags, B_TRUE);
+ if (rc != 0) {
+ if ((table->eft_using_all_mulcst == B_FALSE) &&
+ (encp->enc_bug26807_workaround == B_TRUE)) {
+ /*
+ * Multicast filter chaining is on, so remove
+ * old filters before inserting the multicast
+ * all filter to avoid duplicate delivery caused
+ * by packets matching multiple filters.
+ */
+ ef10_filter_remove_old(enp);
+ }
+
+ rc = ef10_filter_insert_all_multicast(enp,
+ filter_flags);
+ if (rc != 0) {
+ rc = ef10_filter_insert_multicast_list(enp,
+ mulcst, brdcst,
+ addrs, count, filter_flags, B_FALSE);
+ if (rc != 0)
+ goto fail4;
+ }
+ }
+ }
+
+ /* Remove old filters which were not renewed */
+ ef10_filter_remove_old(enp);
+
+ /* report if any optional flags were rejected */
+ if (((all_unicst != B_FALSE) && (all_unicst_rc != 0)) ||
+ ((all_mulcst != B_FALSE) && (all_mulcst_rc != 0))) {
+ rc = ENOTSUP;
+ }
+
+ return (rc);
+
+fail4:
+ EFSYS_PROBE(fail4);
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ /* Clear auto old flags */
+ for (i = 0; i < EFX_ARRAY_SIZE(table->eft_entry); i++) {
+ if (ef10_filter_entry_is_auto_old(table, i)) {
+ ef10_filter_set_entry_not_auto_old(table, i);
+ }
+ }
+
+ return (rc);
+}
+
+ void
+ef10_filter_get_default_rxq(
+ __in efx_nic_t *enp,
+ __out efx_rxq_t **erpp,
+ __out boolean_t *using_rss)
+{
+ ef10_filter_table_t *table = enp->en_filter.ef_ef10_filter_table;
+
+ *erpp = table->eft_default_rxq;
+ *using_rss = table->eft_using_rss;
+}
+
+
+ void
+ef10_filter_default_rxq_set(
+ __in efx_nic_t *enp,
+ __in efx_rxq_t *erp,
+ __in boolean_t using_rss)
+{
+ ef10_filter_table_t *table = enp->en_filter.ef_ef10_filter_table;
+
+#if EFSYS_OPT_RX_SCALE
+ EFSYS_ASSERT((using_rss == B_FALSE) ||
+ (enp->en_rss_context != EF10_RSS_CONTEXT_INVALID));
+ table->eft_using_rss = using_rss;
+#else
+ EFSYS_ASSERT(using_rss == B_FALSE);
+ table->eft_using_rss = B_FALSE;
+#endif
+ table->eft_default_rxq = erp;
+}
+
+ void
+ef10_filter_default_rxq_clear(
+ __in efx_nic_t *enp)
+{
+ ef10_filter_table_t *table = enp->en_filter.ef_ef10_filter_table;
+
+ table->eft_default_rxq = NULL;
+ table->eft_using_rss = B_FALSE;
+}
+
+
+#endif /* EFSYS_OPT_FILTER */
+
+#endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD */
Code Review / deb_dpdk.git / blobdiff