cxgbe(4): Add code to deal with the chip's source MAC table (aka SMT).
Submitted by: Krishnamraju Eraparaju @ Chelsio Sponsored by: Chelsio Communications
This commit is contained in:
parent
b451efbedc
commit
2dae2a7487
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=334447
@ -1409,6 +1409,8 @@ dev/cxgbe/t4_sched.c optional cxgbe pci \
|
|||||||
compile-with "${NORMAL_C} -I$S/dev/cxgbe"
|
compile-with "${NORMAL_C} -I$S/dev/cxgbe"
|
||||||
dev/cxgbe/t4_sge.c optional cxgbe pci \
|
dev/cxgbe/t4_sge.c optional cxgbe pci \
|
||||||
compile-with "${NORMAL_C} -I$S/dev/cxgbe"
|
compile-with "${NORMAL_C} -I$S/dev/cxgbe"
|
||||||
|
dev/cxgbe/t4_smt.c optional cxgbe pci \
|
||||||
|
compile-with "${NORMAL_C} -I$S/dev/cxgbe"
|
||||||
dev/cxgbe/t4_l2t.c optional cxgbe pci \
|
dev/cxgbe/t4_l2t.c optional cxgbe pci \
|
||||||
compile-with "${NORMAL_C} -I$S/dev/cxgbe"
|
compile-with "${NORMAL_C} -I$S/dev/cxgbe"
|
||||||
dev/cxgbe/t4_tracer.c optional cxgbe pci \
|
dev/cxgbe/t4_tracer.c optional cxgbe pci \
|
||||||
|
@ -824,6 +824,7 @@ struct adapter {
|
|||||||
void *iscsi_ulp_softc; /* (struct cxgbei_data *) */
|
void *iscsi_ulp_softc; /* (struct cxgbei_data *) */
|
||||||
void *ccr_softc; /* (struct ccr_softc *) */
|
void *ccr_softc; /* (struct ccr_softc *) */
|
||||||
struct l2t_data *l2t; /* L2 table */
|
struct l2t_data *l2t; /* L2 table */
|
||||||
|
struct smt_data *smt; /* Source MAC Table */
|
||||||
struct tid_info tids;
|
struct tid_info tids;
|
||||||
|
|
||||||
uint8_t doorbells;
|
uint8_t doorbells;
|
||||||
|
@ -84,6 +84,7 @@ __FBSDID("$FreeBSD$");
|
|||||||
#include "t4_l2t.h"
|
#include "t4_l2t.h"
|
||||||
#include "t4_mp_ring.h"
|
#include "t4_mp_ring.h"
|
||||||
#include "t4_if.h"
|
#include "t4_if.h"
|
||||||
|
#include "t4_smt.h"
|
||||||
|
|
||||||
/* T4 bus driver interface */
|
/* T4 bus driver interface */
|
||||||
static int t4_probe(device_t);
|
static int t4_probe(device_t);
|
||||||
@ -1105,6 +1106,7 @@ t4_attach(device_t dev)
|
|||||||
M_ZERO | M_WAITOK);
|
M_ZERO | M_WAITOK);
|
||||||
|
|
||||||
t4_init_l2t(sc, M_WAITOK);
|
t4_init_l2t(sc, M_WAITOK);
|
||||||
|
t4_init_smt(sc, M_WAITOK);
|
||||||
t4_init_tx_sched(sc);
|
t4_init_tx_sched(sc);
|
||||||
#ifdef RATELIMIT
|
#ifdef RATELIMIT
|
||||||
t4_init_etid_table(sc);
|
t4_init_etid_table(sc);
|
||||||
@ -1379,6 +1381,8 @@ t4_detach_common(device_t dev)
|
|||||||
|
|
||||||
if (sc->l2t)
|
if (sc->l2t)
|
||||||
t4_free_l2t(sc->l2t);
|
t4_free_l2t(sc->l2t);
|
||||||
|
if (sc->smt)
|
||||||
|
t4_free_smt(sc->smt);
|
||||||
#ifdef RATELIMIT
|
#ifdef RATELIMIT
|
||||||
t4_free_etid_table(sc);
|
t4_free_etid_table(sc);
|
||||||
#endif
|
#endif
|
||||||
@ -5680,6 +5684,10 @@ t4_sysctls(struct adapter *sc)
|
|||||||
CTLTYPE_STRING | CTLFLAG_RD, sc, 0,
|
CTLTYPE_STRING | CTLFLAG_RD, sc, 0,
|
||||||
sysctl_l2t, "A", "hardware L2 table");
|
sysctl_l2t, "A", "hardware L2 table");
|
||||||
|
|
||||||
|
SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "smt",
|
||||||
|
CTLTYPE_STRING | CTLFLAG_RD, sc, 0,
|
||||||
|
sysctl_smt, "A", "hardware source MAC table");
|
||||||
|
|
||||||
SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "lb_stats",
|
SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "lb_stats",
|
||||||
CTLTYPE_STRING | CTLFLAG_RD, sc, 0,
|
CTLTYPE_STRING | CTLFLAG_RD, sc, 0,
|
||||||
sysctl_lb_stats, "A", "loopback statistics");
|
sysctl_lb_stats, "A", "loopback statistics");
|
||||||
@ -10173,6 +10181,8 @@ mod_event(module_t mod, int cmd, void *arg)
|
|||||||
t4_del_hashfilter_rpl, CPL_COOKIE_HASHFILTER);
|
t4_del_hashfilter_rpl, CPL_COOKIE_HASHFILTER);
|
||||||
t4_register_cpl_handler(CPL_TRACE_PKT, t4_trace_pkt);
|
t4_register_cpl_handler(CPL_TRACE_PKT, t4_trace_pkt);
|
||||||
t4_register_cpl_handler(CPL_T5_TRACE_PKT, t5_trace_pkt);
|
t4_register_cpl_handler(CPL_T5_TRACE_PKT, t5_trace_pkt);
|
||||||
|
t4_register_cpl_handler(CPL_SMT_WRITE_RPL,
|
||||||
|
do_smt_write_rpl);
|
||||||
sx_init(&t4_list_lock, "T4/T5 adapters");
|
sx_init(&t4_list_lock, "T4/T5 adapters");
|
||||||
SLIST_INIT(&t4_list);
|
SLIST_INIT(&t4_list);
|
||||||
#ifdef TCP_OFFLOAD
|
#ifdef TCP_OFFLOAD
|
||||||
|
346
sys/dev/cxgbe/t4_smt.c
Normal file
346
sys/dev/cxgbe/t4_smt.c
Normal file
@ -0,0 +1,346 @@
|
|||||||
|
/*-
|
||||||
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
||||||
|
*
|
||||||
|
* Copyright (c) 2018 Chelsio 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 AUTHOR 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 AUTHOR 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.
|
||||||
|
*/
|
||||||
|
#include <sys/cdefs.h>
|
||||||
|
__FBSDID("$FreeBSD$");
|
||||||
|
|
||||||
|
#include "opt_inet.h"
|
||||||
|
#include "opt_inet6.h"
|
||||||
|
|
||||||
|
#include <sys/param.h>
|
||||||
|
#include <sys/eventhandler.h>
|
||||||
|
#include <sys/systm.h>
|
||||||
|
#include <sys/kernel.h>
|
||||||
|
#include <sys/module.h>
|
||||||
|
#include <sys/bus.h>
|
||||||
|
#include <sys/lock.h>
|
||||||
|
#include <sys/mutex.h>
|
||||||
|
#include <sys/rwlock.h>
|
||||||
|
#include <sys/socket.h>
|
||||||
|
#include <sys/sbuf.h>
|
||||||
|
#include <netinet/in.h>
|
||||||
|
|
||||||
|
#include "common/common.h"
|
||||||
|
#include "common/t4_msg.h"
|
||||||
|
#include "t4_smt.h"
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Module locking notes: There is a RW lock protecting the SMAC table as a
|
||||||
|
* whole plus a spinlock per SMT entry. Entry lookups and allocations happen
|
||||||
|
* under the protection of the table lock, individual entry changes happen
|
||||||
|
* while holding that entry's spinlock. The table lock nests outside the
|
||||||
|
* entry locks. Allocations of new entries take the table lock as writers so
|
||||||
|
* no other lookups can happen while allocating new entries. Entry updates
|
||||||
|
* take the table lock as readers so multiple entries can be updated in
|
||||||
|
* parallel. An SMT entry can be dropped by decrementing its reference count
|
||||||
|
* and therefore can happen in parallel with entry allocation but no entry
|
||||||
|
* can change state or increment its ref count during allocation as both of
|
||||||
|
* these perform lookups.
|
||||||
|
*
|
||||||
|
* Note: We do not take references to ifnets in this module because both
|
||||||
|
* the TOE and the sockets already hold references to the interfaces and the
|
||||||
|
* lifetime of an SMT entry is fully contained in the lifetime of the TOE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Allocate a free SMT entry. Must be called with smt_data.lock held.
|
||||||
|
*/
|
||||||
|
struct smt_entry *
|
||||||
|
t4_find_or_alloc_sme(struct smt_data *s, uint8_t *smac)
|
||||||
|
{
|
||||||
|
struct smt_entry *end, *e;
|
||||||
|
struct smt_entry *first_free = NULL;
|
||||||
|
|
||||||
|
rw_assert(&s->lock, RA_WLOCKED);
|
||||||
|
for (e = &s->smtab[0], end = &s->smtab[s->smt_size]; e != end; ++e) {
|
||||||
|
if (atomic_load_acq_int(&e->refcnt) == 0) {
|
||||||
|
if (!first_free)
|
||||||
|
first_free = e;
|
||||||
|
} else {
|
||||||
|
if (e->state == SMT_STATE_SWITCHING) {
|
||||||
|
/*
|
||||||
|
* This entry is actually in use. See if we can
|
||||||
|
* re-use it?
|
||||||
|
*/
|
||||||
|
if (memcmp(e->smac, smac, ETHER_ADDR_LEN) == 0)
|
||||||
|
goto found_reuse;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (first_free) {
|
||||||
|
e = first_free;
|
||||||
|
goto found;
|
||||||
|
}
|
||||||
|
return NULL;
|
||||||
|
|
||||||
|
found:
|
||||||
|
e->state = SMT_STATE_UNUSED;
|
||||||
|
found_reuse:
|
||||||
|
atomic_add_int(&e->refcnt, 1);
|
||||||
|
return e;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Write an SMT entry. Must be called with the entry locked.
|
||||||
|
*/
|
||||||
|
int
|
||||||
|
t4_write_sme(struct smt_entry *e)
|
||||||
|
{
|
||||||
|
struct smt_data *s;
|
||||||
|
struct sge_wrq *wrq;
|
||||||
|
struct adapter *sc;
|
||||||
|
struct wrq_cookie cookie;
|
||||||
|
struct cpl_smt_write_req *req;
|
||||||
|
struct cpl_t6_smt_write_req *t6req;
|
||||||
|
u8 row;
|
||||||
|
|
||||||
|
mtx_assert(&e->lock, MA_OWNED);
|
||||||
|
|
||||||
|
MPASS(e->wrq != NULL);
|
||||||
|
wrq = e->wrq;
|
||||||
|
sc = wrq->adapter;
|
||||||
|
MPASS(wrq->adapter != NULL);
|
||||||
|
s = sc->smt;
|
||||||
|
|
||||||
|
|
||||||
|
if (chip_id(sc) <= CHELSIO_T5) {
|
||||||
|
/* Source MAC Table (SMT) contains 256 SMAC entries
|
||||||
|
* organized in 128 rows of 2 entries each.
|
||||||
|
*/
|
||||||
|
req = start_wrq_wr(wrq, howmany(sizeof(*req), 16), &cookie);
|
||||||
|
if (req == NULL)
|
||||||
|
return (ENOMEM);
|
||||||
|
INIT_TP_WR(req, 0);
|
||||||
|
/* Each row contains an SMAC pair.
|
||||||
|
* LSB selects the SMAC entry within a row
|
||||||
|
*/
|
||||||
|
row = (e->idx >> 1);
|
||||||
|
if (e->idx & 1) {
|
||||||
|
req->pfvf1 = 0x0;
|
||||||
|
memcpy(req->src_mac1, e->smac, ETHER_ADDR_LEN);
|
||||||
|
/* fill pfvf0/src_mac0 with entry
|
||||||
|
* at prev index from smt-tab.
|
||||||
|
*/
|
||||||
|
req->pfvf0 = 0x0;
|
||||||
|
memcpy(req->src_mac0, s->smtab[e->idx - 1].smac,
|
||||||
|
ETHER_ADDR_LEN);
|
||||||
|
} else {
|
||||||
|
req->pfvf0 = 0x0;
|
||||||
|
memcpy(req->src_mac0, e->smac, ETHER_ADDR_LEN);
|
||||||
|
/* fill pfvf1/src_mac1 with entry
|
||||||
|
* at next index from smt-tab
|
||||||
|
*/
|
||||||
|
req->pfvf1 = 0x0;
|
||||||
|
memcpy(req->src_mac1, s->smtab[e->idx + 1].smac,
|
||||||
|
ETHER_ADDR_LEN);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
/* Source MAC Table (SMT) contains 256 SMAC entries */
|
||||||
|
t6req = start_wrq_wr(wrq, howmany(sizeof(*t6req), 16), &cookie);
|
||||||
|
if (t6req == NULL)
|
||||||
|
return (ENOMEM);
|
||||||
|
INIT_TP_WR(t6req, 0);
|
||||||
|
req = (struct cpl_smt_write_req *)t6req;
|
||||||
|
|
||||||
|
/* fill pfvf0/src_mac0 from smt-tab */
|
||||||
|
req->pfvf0 = 0x0;
|
||||||
|
memcpy(req->src_mac0, s->smtab[e->idx].smac, ETHER_ADDR_LEN);
|
||||||
|
row = e->idx;
|
||||||
|
}
|
||||||
|
OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SMT_WRITE_REQ, e->idx |
|
||||||
|
V_TID_QID(e->iqid)));
|
||||||
|
req->params = htonl(V_SMTW_NORPL(0) |
|
||||||
|
V_SMTW_IDX(row) |
|
||||||
|
V_SMTW_OVLAN_IDX(0));
|
||||||
|
|
||||||
|
commit_wrq_wr(wrq, req, &cookie);
|
||||||
|
|
||||||
|
return (0);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Allocate an SMT entry for use by a switching rule.
|
||||||
|
*/
|
||||||
|
struct smt_entry *
|
||||||
|
t4_smt_alloc_switching(struct smt_data *s, uint8_t *smac)
|
||||||
|
{
|
||||||
|
struct smt_entry *e;
|
||||||
|
|
||||||
|
MPASS(s != NULL);
|
||||||
|
rw_wlock(&s->lock);
|
||||||
|
e = t4_find_or_alloc_sme(s, smac);
|
||||||
|
rw_wunlock(&s->lock);
|
||||||
|
return e;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Sets/updates the contents of a switching SMT entry that has been allocated
|
||||||
|
* with an earlier call to @t4_smt_alloc_switching.
|
||||||
|
*/
|
||||||
|
int
|
||||||
|
t4_smt_set_switching(struct adapter *sc, struct smt_entry *e, uint16_t pfvf,
|
||||||
|
uint8_t *smac)
|
||||||
|
{
|
||||||
|
int rc = 0;
|
||||||
|
|
||||||
|
if (atomic_load_acq_int(&e->refcnt) == 1) {
|
||||||
|
/* Setup the entry for the first time */
|
||||||
|
mtx_lock(&e->lock);
|
||||||
|
e->wrq = &sc->sge.mgmtq;
|
||||||
|
e->iqid = sc->sge.fwq.abs_id;
|
||||||
|
e->pfvf = pfvf;
|
||||||
|
e->state = SMT_STATE_SWITCHING;
|
||||||
|
memcpy(e->smac, smac, ETHER_ADDR_LEN);
|
||||||
|
rc = t4_write_sme(e);
|
||||||
|
mtx_unlock(&e->lock);
|
||||||
|
}
|
||||||
|
|
||||||
|
return (rc);
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
t4_init_smt(struct adapter *sc, int flags)
|
||||||
|
{
|
||||||
|
int i, smt_size;
|
||||||
|
struct smt_data *s;
|
||||||
|
|
||||||
|
smt_size = SMT_SIZE;
|
||||||
|
s = malloc(sizeof(*s) + smt_size * sizeof (struct smt_entry), M_CXGBE,
|
||||||
|
M_ZERO | flags);
|
||||||
|
if (!s)
|
||||||
|
return (ENOMEM);
|
||||||
|
|
||||||
|
s->smt_size = smt_size;
|
||||||
|
rw_init(&s->lock, "SMT");
|
||||||
|
|
||||||
|
for (i = 0; i < smt_size; i++) {
|
||||||
|
struct smt_entry *e = &s->smtab[i];
|
||||||
|
|
||||||
|
e->idx = i;
|
||||||
|
e->state = SMT_STATE_UNUSED;
|
||||||
|
mtx_init(&e->lock, "SMT_E", NULL, MTX_DEF);
|
||||||
|
atomic_store_rel_int(&e->refcnt, 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
sc->smt = s;
|
||||||
|
|
||||||
|
return (0);
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
t4_free_smt(struct smt_data *s)
|
||||||
|
{
|
||||||
|
int i;
|
||||||
|
|
||||||
|
for (i = 0; i < s->smt_size; i++)
|
||||||
|
mtx_destroy(&s->smtab[i].lock);
|
||||||
|
rw_destroy(&s->lock);
|
||||||
|
free(s, M_CXGBE);
|
||||||
|
|
||||||
|
return (0);
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
do_smt_write_rpl(struct sge_iq *iq, const struct rss_header *rss,
|
||||||
|
struct mbuf *m)
|
||||||
|
{
|
||||||
|
struct adapter *sc = iq->adapter;
|
||||||
|
const struct cpl_smt_write_rpl *rpl = (const void *)(rss + 1);
|
||||||
|
unsigned int tid = GET_TID(rpl);
|
||||||
|
unsigned int smtidx = G_TID_TID(tid);
|
||||||
|
|
||||||
|
if (__predict_false(rpl->status != CPL_ERR_NONE)) {
|
||||||
|
struct smt_entry *e = &sc->smt->smtab[smtidx];
|
||||||
|
log(LOG_ERR,
|
||||||
|
"Unexpected SMT_WRITE_RPL (%u) for entry at hw_idx %u\n",
|
||||||
|
rpl->status, smtidx);
|
||||||
|
mtx_lock(&e->lock);
|
||||||
|
e->state = SMT_STATE_ERROR;
|
||||||
|
mtx_unlock(&e->lock);
|
||||||
|
return (EINVAL);
|
||||||
|
}
|
||||||
|
|
||||||
|
return (0);
|
||||||
|
}
|
||||||
|
|
||||||
|
#ifdef SBUF_DRAIN
|
||||||
|
static char
|
||||||
|
smt_state(const struct smt_entry *e)
|
||||||
|
{
|
||||||
|
switch (e->state) {
|
||||||
|
case SMT_STATE_SWITCHING: return 'X';
|
||||||
|
case SMT_STATE_ERROR: return 'E';
|
||||||
|
default: return 'U';
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
sysctl_smt(SYSCTL_HANDLER_ARGS)
|
||||||
|
{
|
||||||
|
struct adapter *sc = arg1;
|
||||||
|
struct smt_data *smt = sc->smt;
|
||||||
|
struct smt_entry *e;
|
||||||
|
struct sbuf *sb;
|
||||||
|
int rc, i, header = 0;
|
||||||
|
|
||||||
|
if (smt == NULL)
|
||||||
|
return (ENXIO);
|
||||||
|
|
||||||
|
rc = sysctl_wire_old_buffer(req, 0);
|
||||||
|
if (rc != 0)
|
||||||
|
return (rc);
|
||||||
|
|
||||||
|
sb = sbuf_new_for_sysctl(NULL, NULL, SMT_SIZE, req);
|
||||||
|
if (sb == NULL)
|
||||||
|
return (ENOMEM);
|
||||||
|
|
||||||
|
e = &smt->smtab[0];
|
||||||
|
for (i = 0; i < smt->smt_size; i++, e++) {
|
||||||
|
mtx_lock(&e->lock);
|
||||||
|
if (e->state == SMT_STATE_UNUSED)
|
||||||
|
goto skip;
|
||||||
|
|
||||||
|
if (header == 0) {
|
||||||
|
sbuf_printf(sb, " Idx "
|
||||||
|
"Ethernet address State Users");
|
||||||
|
header = 1;
|
||||||
|
}
|
||||||
|
sbuf_printf(sb, "\n%4u %02x:%02x:%02x:%02x:%02x:%02x "
|
||||||
|
"%c %5u",
|
||||||
|
e->idx, e->smac[0], e->smac[1], e->smac[2],
|
||||||
|
e->smac[3], e->smac[4], e->smac[5],
|
||||||
|
smt_state(e), atomic_load_acq_int(&e->refcnt));
|
||||||
|
skip:
|
||||||
|
mtx_unlock(&e->lock);
|
||||||
|
}
|
||||||
|
|
||||||
|
rc = sbuf_finish(sb);
|
||||||
|
sbuf_delete(sb);
|
||||||
|
|
||||||
|
return (rc);
|
||||||
|
}
|
||||||
|
#endif
|
92
sys/dev/cxgbe/t4_smt.h
Normal file
92
sys/dev/cxgbe/t4_smt.h
Normal file
@ -0,0 +1,92 @@
|
|||||||
|
/*-
|
||||||
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
||||||
|
*
|
||||||
|
* Copyright (c) 2018 Chelsio 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 AUTHOR 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 AUTHOR 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.
|
||||||
|
*
|
||||||
|
* $FreeBSD$
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef __T4_SMT_H
|
||||||
|
#define __T4_SMT_H
|
||||||
|
|
||||||
|
/* identifies sync vs async SMT_WRITE_REQs */
|
||||||
|
#define S_SYNC_WR 12
|
||||||
|
#define V_SYNC_WR(x) ((x) << S_SYNC_WR)
|
||||||
|
#define F_SYNC_WR V_SYNC_WR(1)
|
||||||
|
|
||||||
|
enum { SMT_SIZE = 256 }; /* # of SMT entries */
|
||||||
|
|
||||||
|
enum {
|
||||||
|
SMT_STATE_SWITCHING, /* entry is being used by a switching filter */
|
||||||
|
SMT_STATE_UNUSED, /* entry not in use */
|
||||||
|
SMT_STATE_ERROR /* entry is in error state */
|
||||||
|
};
|
||||||
|
|
||||||
|
struct smt_entry {
|
||||||
|
uint16_t state; /* entry state */
|
||||||
|
uint16_t idx; /* entry index */
|
||||||
|
uint32_t iqid; /* iqid for reply to write_sme */
|
||||||
|
struct sge_wrq *wrq; /* queue to use for write_sme */
|
||||||
|
uint16_t pfvf; /* pfvf number */
|
||||||
|
volatile int refcnt; /* entry reference count */
|
||||||
|
uint8_t smac[ETHER_ADDR_LEN]; /* source MAC address */
|
||||||
|
struct mtx lock;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct smt_data {
|
||||||
|
struct rwlock lock;
|
||||||
|
u_int smt_size;
|
||||||
|
struct smt_entry smtab[];
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
int t4_init_smt(struct adapter *, int);
|
||||||
|
int t4_free_smt(struct smt_data *);
|
||||||
|
struct smt_entry *t4_find_or_alloc_sme(struct smt_data *, uint8_t *);
|
||||||
|
struct smt_entry *t4_smt_alloc_switching(struct smt_data *, uint8_t *);
|
||||||
|
int t4_smt_set_switching(struct adapter *, struct smt_entry *,
|
||||||
|
uint16_t, uint8_t *);
|
||||||
|
int t4_write_sme(struct smt_entry *);
|
||||||
|
int do_smt_write_rpl(struct sge_iq *, const struct rss_header *, struct mbuf *);
|
||||||
|
|
||||||
|
static inline void
|
||||||
|
t4_smt_release(struct smt_entry *e)
|
||||||
|
{
|
||||||
|
MPASS(e != NULL);
|
||||||
|
if (atomic_fetchadd_int(&e->refcnt, -1) == 1) {
|
||||||
|
mtx_lock(&e->lock);
|
||||||
|
e->state = SMT_STATE_UNUSED;
|
||||||
|
mtx_unlock(&e->lock);
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
#ifdef SBUF_DRAIN
|
||||||
|
int sysctl_smt(SYSCTL_HANDLER_ARGS);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif /* __T4_SMT_H */
|
@ -25,6 +25,7 @@ SRCS+= t4_mp_ring.c
|
|||||||
SRCS+= t4_netmap.c
|
SRCS+= t4_netmap.c
|
||||||
SRCS+= t4_sched.c
|
SRCS+= t4_sched.c
|
||||||
SRCS+= t4_sge.c
|
SRCS+= t4_sge.c
|
||||||
|
SRCS+= t4_smt.c
|
||||||
SRCS+= t4_tracer.c
|
SRCS+= t4_tracer.c
|
||||||
SRCS+= cudbg_common.c
|
SRCS+= cudbg_common.c
|
||||||
SRCS+= cudbg_flash_utils.c
|
SRCS+= cudbg_flash_utils.c
|
||||||
|
Loading…
Reference in New Issue
Block a user