| Current Path : /sys/amd64/compile/hs32/modules/usr/src/sys/modules/isci/@/dev/sfxge/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/isci/@/dev/sfxge/sfxge_port.c |
/*-
* Copyright (c) 2010-2011 Solarflare Communications, Inc.
* All rights reserved.
*
* This software was developed in part by Philip Paeps under contract for
* Solarflare Communications, Inc.
*
* 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: release/9.1.0/sys/dev/sfxge/sfxge_port.c 231156 2012-02-07 19:53:02Z jhb $");
#include <sys/types.h>
#include <sys/limits.h>
#include <net/ethernet.h>
#include <net/if_dl.h>
#include "common/efx.h"
#include "sfxge.h"
static int
sfxge_mac_stat_update(struct sfxge_softc *sc)
{
struct sfxge_port *port = &sc->port;
efsys_mem_t *esmp = &(port->mac_stats.dma_buf);
clock_t now;
unsigned int count;
int rc;
mtx_lock(&port->lock);
if (port->init_state != SFXGE_PORT_STARTED) {
rc = 0;
goto out;
}
now = ticks;
if (now - port->mac_stats.update_time < hz) {
rc = 0;
goto out;
}
port->mac_stats.update_time = now;
/* If we're unlucky enough to read statistics wduring the DMA, wait
* up to 10ms for it to finish (typically takes <500us) */
for (count = 0; count < 100; ++count) {
EFSYS_PROBE1(wait, unsigned int, count);
/* Synchronize the DMA memory for reading */
bus_dmamap_sync(esmp->esm_tag, esmp->esm_map,
BUS_DMASYNC_POSTREAD);
/* Try to update the cached counters */
if ((rc = efx_mac_stats_update(sc->enp, esmp,
port->mac_stats.decode_buf, NULL)) != EAGAIN)
goto out;
DELAY(100);
}
rc = ETIMEDOUT;
out:
mtx_unlock(&port->lock);
return rc;
}
static int
sfxge_mac_stat_handler(SYSCTL_HANDLER_ARGS)
{
struct sfxge_softc *sc = arg1;
unsigned int id = arg2;
int rc;
if ((rc = sfxge_mac_stat_update(sc)) != 0)
return rc;
return SYSCTL_OUT(req,
(uint64_t *)sc->port.mac_stats.decode_buf + id,
sizeof(uint64_t));
}
static void
sfxge_mac_stat_init(struct sfxge_softc *sc)
{
struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->dev);
struct sysctl_oid_list *stat_list;
unsigned int id;
const char *name;
stat_list = SYSCTL_CHILDREN(sc->stats_node);
/* Initialise the named stats */
for (id = 0; id < EFX_MAC_NSTATS; id++) {
name = efx_mac_stat_name(sc->enp, id);
SYSCTL_ADD_PROC(
ctx, stat_list,
OID_AUTO, name, CTLTYPE_U64|CTLFLAG_RD,
sc, id, sfxge_mac_stat_handler, "Q",
"");
}
}
#ifdef SFXGE_HAVE_PAUSE_MEDIAOPTS
static unsigned int
sfxge_port_wanted_fc(struct sfxge_softc *sc)
{
struct ifmedia_entry *ifm = sc->media.ifm_cur;
if (ifm->ifm_media == (IFM_ETHER | IFM_AUTO))
return EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
return ((ifm->ifm_media & IFM_ETH_RXPAUSE) ? EFX_FCNTL_RESPOND : 0) |
((ifm->ifm_media & IFM_ETH_TXPAUSE) ? EFX_FCNTL_GENERATE : 0);
}
static unsigned int
sfxge_port_link_fc_ifm(struct sfxge_softc *sc)
{
unsigned int wanted_fc, link_fc;
efx_mac_fcntl_get(sc->enp, &wanted_fc, &link_fc);
return ((link_fc & EFX_FCNTL_RESPOND) ? IFM_ETH_RXPAUSE : 0) |
((link_fc & EFX_FCNTL_GENERATE) ? IFM_ETH_TXPAUSE : 0);
}
#else /* !SFXGE_HAVE_PAUSE_MEDIAOPTS */
static unsigned int
sfxge_port_wanted_fc(struct sfxge_softc *sc)
{
return sc->port.wanted_fc;
}
static unsigned int
sfxge_port_link_fc_ifm(struct sfxge_softc *sc)
{
return 0;
}
static int
sfxge_port_wanted_fc_handler(SYSCTL_HANDLER_ARGS)
{
struct sfxge_softc *sc;
struct sfxge_port *port;
unsigned int fcntl;
int error;
sc = arg1;
port = &sc->port;
mtx_lock(&port->lock);
if (req->newptr) {
if ((error = SYSCTL_IN(req, &fcntl, sizeof(fcntl))) != 0)
goto out;
if (port->wanted_fc == fcntl)
goto out;
port->wanted_fc = fcntl;
if (port->init_state != SFXGE_PORT_STARTED)
goto out;
error = efx_mac_fcntl_set(sc->enp, port->wanted_fc, B_TRUE);
} else {
error = SYSCTL_OUT(req, &port->wanted_fc,
sizeof(port->wanted_fc));
}
out:
mtx_unlock(&port->lock);
return (error);
}
static int
sfxge_port_link_fc_handler(SYSCTL_HANDLER_ARGS)
{
struct sfxge_softc *sc;
struct sfxge_port *port;
unsigned int wanted_fc, link_fc;
int error;
sc = arg1;
port = &sc->port;
mtx_lock(&port->lock);
if (port->init_state == SFXGE_PORT_STARTED && SFXGE_LINK_UP(sc))
efx_mac_fcntl_get(sc->enp, &wanted_fc, &link_fc);
else
link_fc = 0;
error = SYSCTL_OUT(req, &link_fc, sizeof(link_fc));
mtx_unlock(&port->lock);
return (error);
}
#endif /* SFXGE_HAVE_PAUSE_MEDIAOPTS */
static const u_long sfxge_link_baudrate[EFX_LINK_NMODES] = {
[EFX_LINK_10HDX] = IF_Mbps(10),
[EFX_LINK_10FDX] = IF_Mbps(10),
[EFX_LINK_100HDX] = IF_Mbps(100),
[EFX_LINK_100FDX] = IF_Mbps(100),
[EFX_LINK_1000HDX] = IF_Gbps(1),
[EFX_LINK_1000FDX] = IF_Gbps(1),
[EFX_LINK_10000FDX] = MIN(IF_Gbps(10ULL), ULONG_MAX),
};
void
sfxge_mac_link_update(struct sfxge_softc *sc, efx_link_mode_t mode)
{
struct sfxge_port *port;
int link_state;
port = &sc->port;
if (port->link_mode == mode)
return;
port->link_mode = mode;
/* Push link state update to the OS */
link_state = (port->link_mode != EFX_LINK_DOWN ?
LINK_STATE_UP : LINK_STATE_DOWN);
sc->ifnet->if_baudrate = sfxge_link_baudrate[port->link_mode];
if_link_state_change(sc->ifnet, link_state);
}
static void
sfxge_mac_poll_work(void *arg, int npending)
{
struct sfxge_softc *sc;
efx_nic_t *enp;
struct sfxge_port *port;
efx_link_mode_t mode;
sc = (struct sfxge_softc *)arg;
enp = sc->enp;
port = &sc->port;
mtx_lock(&port->lock);
if (port->init_state != SFXGE_PORT_STARTED)
goto done;
/* This may sleep waiting for MCDI completion */
(void)efx_port_poll(enp, &mode);
sfxge_mac_link_update(sc, mode);
done:
mtx_unlock(&port->lock);
}
static int
sfxge_mac_filter_set_locked(struct sfxge_softc *sc)
{
unsigned int bucket[EFX_MAC_HASH_BITS];
struct ifnet *ifp = sc->ifnet;
struct ifmultiaddr *ifma;
struct sockaddr_dl *sa;
efx_nic_t *enp = sc->enp;
unsigned int index;
int rc;
/* Set promisc-unicast and broadcast filter bits */
if ((rc = efx_mac_filter_set(enp, !!(ifp->if_flags & IFF_PROMISC),
B_TRUE)) != 0)
return rc;
/* Set multicast hash filter */
if (ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI)) {
for (index = 0; index < EFX_MAC_HASH_BITS; index++)
bucket[index] = 1;
} else {
/* Broadcast frames also go through the multicast
* filter, and the broadcast address hashes to
* 0xff. */
bucket[0xff] = 1;
if_maddr_rlock(ifp);
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
if (ifma->ifma_addr->sa_family == AF_LINK) {
sa = (struct sockaddr_dl *)ifma->ifma_addr;
index = ether_crc32_le(LLADDR(sa), 6) & 0xff;
bucket[index] = 1;
}
}
if_maddr_runlock(ifp);
}
return efx_mac_hash_set(enp, bucket);
}
int
sfxge_mac_filter_set(struct sfxge_softc *sc)
{
struct sfxge_port *port = &sc->port;
int rc;
KASSERT(port->init_state == SFXGE_PORT_STARTED, ("port not started"));
mtx_lock(&port->lock);
rc = sfxge_mac_filter_set_locked(sc);
mtx_unlock(&port->lock);
return rc;
}
void
sfxge_port_stop(struct sfxge_softc *sc)
{
struct sfxge_port *port;
efx_nic_t *enp;
port = &sc->port;
enp = sc->enp;
mtx_lock(&port->lock);
KASSERT(port->init_state == SFXGE_PORT_STARTED,
("port not started"));
port->init_state = SFXGE_PORT_INITIALIZED;
port->mac_stats.update_time = 0;
/* This may call MCDI */
(void)efx_mac_drain(enp, B_TRUE);
(void)efx_mac_stats_periodic(enp, &port->mac_stats.dma_buf, 0, B_FALSE);
port->link_mode = EFX_LINK_UNKNOWN;
/* Destroy the common code port object. */
efx_port_fini(sc->enp);
mtx_unlock(&port->lock);
}
int
sfxge_port_start(struct sfxge_softc *sc)
{
uint8_t mac_addr[ETHER_ADDR_LEN];
struct ifnet *ifp = sc->ifnet;
struct sfxge_port *port;
efx_nic_t *enp;
size_t pdu;
int rc;
port = &sc->port;
enp = sc->enp;
mtx_lock(&port->lock);
KASSERT(port->init_state == SFXGE_PORT_INITIALIZED,
("port not initialized"));
/* Initialize the port object in the common code. */
if ((rc = efx_port_init(sc->enp)) != 0)
goto fail;
/* Set the SDU */
pdu = EFX_MAC_PDU(ifp->if_mtu);
if ((rc = efx_mac_pdu_set(enp, pdu)) != 0)
goto fail2;
if ((rc = efx_mac_fcntl_set(enp, sfxge_port_wanted_fc(sc), B_TRUE))
!= 0)
goto fail2;
/* Set the unicast address */
if_addr_rlock(ifp);
bcopy(LLADDR((struct sockaddr_dl *)ifp->if_addr->ifa_addr),
mac_addr, sizeof(mac_addr));
if_addr_runlock(ifp);
if ((rc = efx_mac_addr_set(enp, mac_addr)) != 0)
goto fail;
sfxge_mac_filter_set_locked(sc);
/* Update MAC stats by DMA every second */
if ((rc = efx_mac_stats_periodic(enp, &port->mac_stats.dma_buf,
1000, B_FALSE)) != 0)
goto fail2;
if ((rc = efx_mac_drain(enp, B_FALSE)) != 0)
goto fail3;
if ((rc = efx_phy_adv_cap_set(sc->enp, sc->media.ifm_cur->ifm_data))
!= 0)
goto fail4;
port->init_state = SFXGE_PORT_STARTED;
/* Single poll in case there were missing initial events */
mtx_unlock(&port->lock);
sfxge_mac_poll_work(sc, 0);
return (0);
fail4:
(void)efx_mac_drain(enp, B_TRUE);
fail3:
(void)efx_mac_stats_periodic(enp, &port->mac_stats.dma_buf,
0, B_FALSE);
fail2:
efx_port_fini(sc->enp);
fail:
mtx_unlock(&port->lock);
return (rc);
}
static int
sfxge_phy_stat_update(struct sfxge_softc *sc)
{
struct sfxge_port *port = &sc->port;
efsys_mem_t *esmp = &port->phy_stats.dma_buf;
clock_t now;
unsigned int count;
int rc;
mtx_lock(&port->lock);
if (port->init_state != SFXGE_PORT_STARTED) {
rc = 0;
goto out;
}
now = ticks;
if (now - port->phy_stats.update_time < hz) {
rc = 0;
goto out;
}
port->phy_stats.update_time = now;
/* If we're unlucky enough to read statistics wduring the DMA, wait
* up to 10ms for it to finish (typically takes <500us) */
for (count = 0; count < 100; ++count) {
EFSYS_PROBE1(wait, unsigned int, count);
/* Synchronize the DMA memory for reading */
bus_dmamap_sync(esmp->esm_tag, esmp->esm_map,
BUS_DMASYNC_POSTREAD);
/* Try to update the cached counters */
if ((rc = efx_phy_stats_update(sc->enp, esmp,
port->phy_stats.decode_buf)) != EAGAIN)
goto out;
DELAY(100);
}
rc = ETIMEDOUT;
out:
mtx_unlock(&port->lock);
return rc;
}
static int
sfxge_phy_stat_handler(SYSCTL_HANDLER_ARGS)
{
struct sfxge_softc *sc = arg1;
unsigned int id = arg2;
int rc;
if ((rc = sfxge_phy_stat_update(sc)) != 0)
return rc;
return SYSCTL_OUT(req,
(uint32_t *)sc->port.phy_stats.decode_buf + id,
sizeof(uint32_t));
}
static void
sfxge_phy_stat_init(struct sfxge_softc *sc)
{
struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->dev);
struct sysctl_oid_list *stat_list;
unsigned int id;
const char *name;
uint64_t stat_mask = efx_nic_cfg_get(sc->enp)->enc_phy_stat_mask;
stat_list = SYSCTL_CHILDREN(sc->stats_node);
/* Initialise the named stats */
for (id = 0; id < EFX_PHY_NSTATS; id++) {
if (!(stat_mask & ((uint64_t)1 << id)))
continue;
name = efx_phy_stat_name(sc->enp, id);
SYSCTL_ADD_PROC(
ctx, stat_list,
OID_AUTO, name, CTLTYPE_UINT|CTLFLAG_RD,
sc, id, sfxge_phy_stat_handler,
id == EFX_PHY_STAT_OUI ? "IX" : "IU",
"");
}
}
void
sfxge_port_fini(struct sfxge_softc *sc)
{
struct sfxge_port *port;
efsys_mem_t *esmp;
port = &sc->port;
esmp = &port->mac_stats.dma_buf;
KASSERT(port->init_state == SFXGE_PORT_INITIALIZED,
("Port not initialized"));
port->init_state = SFXGE_PORT_UNINITIALIZED;
port->link_mode = EFX_LINK_UNKNOWN;
/* Finish with PHY DMA memory */
sfxge_dma_free(&port->phy_stats.dma_buf);
free(port->phy_stats.decode_buf, M_SFXGE);
sfxge_dma_free(esmp);
free(port->mac_stats.decode_buf, M_SFXGE);
mtx_destroy(&port->lock);
port->sc = NULL;
}
int
sfxge_port_init(struct sfxge_softc *sc)
{
struct sfxge_port *port;
struct sysctl_ctx_list *sysctl_ctx;
struct sysctl_oid *sysctl_tree;
efsys_mem_t *mac_stats_buf, *phy_stats_buf;
int rc;
port = &sc->port;
mac_stats_buf = &port->mac_stats.dma_buf;
phy_stats_buf = &port->phy_stats.dma_buf;
KASSERT(port->init_state == SFXGE_PORT_UNINITIALIZED,
("Port already initialized"));
port->sc = sc;
mtx_init(&port->lock, "sfxge_port", NULL, MTX_DEF);
port->phy_stats.decode_buf = malloc(EFX_PHY_NSTATS * sizeof(uint32_t),
M_SFXGE, M_WAITOK | M_ZERO);
if ((rc = sfxge_dma_alloc(sc, EFX_PHY_STATS_SIZE, phy_stats_buf)) != 0)
goto fail;
bzero(phy_stats_buf->esm_base, phy_stats_buf->esm_size);
sfxge_phy_stat_init(sc);
sysctl_ctx = device_get_sysctl_ctx(sc->dev);
sysctl_tree = device_get_sysctl_tree(sc->dev);
#ifndef SFXGE_HAVE_PAUSE_MEDIAOPTS
/* If flow control cannot be configured or reported through
* ifmedia, provide sysctls for it. */
port->wanted_fc = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
"wanted_fc", CTLTYPE_UINT|CTLFLAG_RW, sc, 0,
sfxge_port_wanted_fc_handler, "IU", "wanted flow control mode");
SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
"link_fc", CTLTYPE_UINT|CTLFLAG_RD, sc, 0,
sfxge_port_link_fc_handler, "IU", "link flow control mode");
#endif
port->mac_stats.decode_buf = malloc(EFX_MAC_NSTATS * sizeof(uint64_t),
M_SFXGE, M_WAITOK | M_ZERO);
if ((rc = sfxge_dma_alloc(sc, EFX_MAC_STATS_SIZE, mac_stats_buf)) != 0)
goto fail2;
bzero(mac_stats_buf->esm_base, mac_stats_buf->esm_size);
sfxge_mac_stat_init(sc);
port->init_state = SFXGE_PORT_INITIALIZED;
return (0);
fail2:
free(port->mac_stats.decode_buf, M_SFXGE);
sfxge_dma_free(phy_stats_buf);
fail:
free(port->phy_stats.decode_buf, M_SFXGE);
(void)mtx_destroy(&port->lock);
port->sc = NULL;
return rc;
}
static int sfxge_link_mode[EFX_PHY_MEDIA_NTYPES][EFX_LINK_NMODES] = {
[EFX_PHY_MEDIA_CX4] = {
[EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_CX4,
},
[EFX_PHY_MEDIA_KX4] = {
[EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_KX4,
},
[EFX_PHY_MEDIA_XFP] = {
/* Don't know the module type, but assume SR for now. */
[EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_SR,
},
[EFX_PHY_MEDIA_SFP_PLUS] = {
/* Don't know the module type, but assume SX/SR for now. */
[EFX_LINK_1000FDX] = IFM_ETHER | IFM_FDX | IFM_1000_SX,
[EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_SR,
},
[EFX_PHY_MEDIA_BASE_T] = {
[EFX_LINK_10HDX] = IFM_ETHER | IFM_HDX | IFM_10_T,
[EFX_LINK_10FDX] = IFM_ETHER | IFM_FDX | IFM_10_T,
[EFX_LINK_100HDX] = IFM_ETHER | IFM_HDX | IFM_100_TX,
[EFX_LINK_100FDX] = IFM_ETHER | IFM_FDX | IFM_100_TX,
[EFX_LINK_1000HDX] = IFM_ETHER | IFM_HDX | IFM_1000_T,
[EFX_LINK_1000FDX] = IFM_ETHER | IFM_FDX | IFM_1000_T,
[EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_T,
},
};
static void
sfxge_media_status(struct ifnet *ifp, struct ifmediareq *ifmr)
{
struct sfxge_softc *sc;
efx_phy_media_type_t medium_type;
efx_link_mode_t mode;
sc = ifp->if_softc;
sx_xlock(&sc->softc_lock);
ifmr->ifm_status = IFM_AVALID;
ifmr->ifm_active = IFM_ETHER;
if (SFXGE_RUNNING(sc) && SFXGE_LINK_UP(sc)) {
ifmr->ifm_status |= IFM_ACTIVE;
efx_phy_media_type_get(sc->enp, &medium_type);
mode = sc->port.link_mode;
ifmr->ifm_active |= sfxge_link_mode[medium_type][mode];
ifmr->ifm_active |= sfxge_port_link_fc_ifm(sc);
}
sx_xunlock(&sc->softc_lock);
}
static int
sfxge_media_change(struct ifnet *ifp)
{
struct sfxge_softc *sc;
struct ifmedia_entry *ifm;
int rc;
sc = ifp->if_softc;
ifm = sc->media.ifm_cur;
sx_xlock(&sc->softc_lock);
if (!SFXGE_RUNNING(sc)) {
rc = 0;
goto out;
}
rc = efx_mac_fcntl_set(sc->enp, sfxge_port_wanted_fc(sc), B_TRUE);
if (rc != 0)
goto out;
rc = efx_phy_adv_cap_set(sc->enp, ifm->ifm_data);
out:
sx_xunlock(&sc->softc_lock);
return rc;
}
int sfxge_port_ifmedia_init(struct sfxge_softc *sc)
{
efx_phy_media_type_t medium_type;
uint32_t cap_mask, mode_cap_mask;
efx_link_mode_t mode;
int mode_ifm, best_mode_ifm = 0;
int rc;
/* We need port state to initialise the ifmedia list. */
if ((rc = efx_nic_init(sc->enp)) != 0)
goto out;
if ((rc = efx_port_init(sc->enp)) != 0)
goto out2;
/*
* Register ifconfig callbacks for querying and setting the
* link mode and link status.
*/
ifmedia_init(&sc->media, IFM_IMASK, sfxge_media_change,
sfxge_media_status);
/*
* Map firmware medium type and capabilities to ifmedia types.
* ifmedia does not distinguish between forcing the link mode
* and disabling auto-negotiation. 1000BASE-T and 10GBASE-T
* require AN even if only one link mode is enabled, and for
* 100BASE-TX it is useful even if the link mode is forced.
* Therefore we never disable auto-negotiation.
*
* Also enable and advertise flow control by default.
*/
efx_phy_media_type_get(sc->enp, &medium_type);
efx_phy_adv_cap_get(sc->enp, EFX_PHY_CAP_PERM, &cap_mask);
EFX_STATIC_ASSERT(EFX_LINK_10HDX == EFX_PHY_CAP_10HDX + 1);
EFX_STATIC_ASSERT(EFX_LINK_10FDX == EFX_PHY_CAP_10FDX + 1);
EFX_STATIC_ASSERT(EFX_LINK_100HDX == EFX_PHY_CAP_100HDX + 1);
EFX_STATIC_ASSERT(EFX_LINK_100FDX == EFX_PHY_CAP_100FDX + 1);
EFX_STATIC_ASSERT(EFX_LINK_1000HDX == EFX_PHY_CAP_1000HDX + 1);
EFX_STATIC_ASSERT(EFX_LINK_1000FDX == EFX_PHY_CAP_1000FDX + 1);
EFX_STATIC_ASSERT(EFX_LINK_10000FDX == EFX_PHY_CAP_10000FDX + 1);
for (mode = EFX_LINK_10HDX; mode <= EFX_LINK_10000FDX; mode++) {
mode_cap_mask = 1 << (mode - 1);
mode_ifm = sfxge_link_mode[medium_type][mode];
if ((cap_mask & mode_cap_mask) && mode_ifm) {
mode_cap_mask |= cap_mask & (1 << EFX_PHY_CAP_AN);
#ifdef SFXGE_HAVE_PAUSE_MEDIAOPTS
/* No flow-control */
ifmedia_add(&sc->media, mode_ifm, mode_cap_mask, NULL);
/* Respond-only. If using AN, we implicitly
* offer symmetric as well, but that doesn't
* mean we *have* to generate pause frames.
*/
mode_cap_mask |= cap_mask & ((1 << EFX_PHY_CAP_PAUSE) |
(1 << EFX_PHY_CAP_ASYM));
mode_ifm |= IFM_ETH_RXPAUSE;
ifmedia_add(&sc->media, mode_ifm, mode_cap_mask, NULL);
/* Symmetric */
mode_cap_mask &= ~(1 << EFX_PHY_CAP_ASYM);
mode_ifm |= IFM_ETH_TXPAUSE;
#else /* !SFXGE_HAVE_PAUSE_MEDIAOPTS */
mode_cap_mask |= cap_mask & (1 << EFX_PHY_CAP_PAUSE);
#endif
ifmedia_add(&sc->media, mode_ifm, mode_cap_mask, NULL);
/* Link modes are numbered in order of speed,
* so assume the last one available is the best.
*/
best_mode_ifm = mode_ifm;
}
}
if (cap_mask & (1 << EFX_PHY_CAP_AN)) {
/* Add autoselect mode. */
mode_ifm = IFM_ETHER | IFM_AUTO;
ifmedia_add(&sc->media, mode_ifm,
cap_mask & ~(1 << EFX_PHY_CAP_ASYM), NULL);
best_mode_ifm = mode_ifm;
}
if (best_mode_ifm)
ifmedia_set(&sc->media, best_mode_ifm);
/* Now discard port state until interface is started. */
efx_port_fini(sc->enp);
out2:
efx_nic_fini(sc->enp);
out:
return rc;
}