85fb986ba7
This resolves a problem with ioctl(NIOCGETHSTAT) hanging forever as identified by Erik van der Kouwe, and possibly many other corner cases. Change-Id: I2350c882dc6a0862e16454ec6b6c320d78780bcd
787 lines
18 KiB
C
787 lines
18 KiB
C
/*
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inet/mnx_eth.c
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Created: Jan 2, 1992 by Philip Homburg
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Copyright 1995 Philip Homburg
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*/
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#include "inet.h"
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#include <minix/safecopies.h>
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#include "proto.h"
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#include "osdep_eth.h"
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#include "generic/type.h"
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#include "generic/assert.h"
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#include "generic/buf.h"
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#include "generic/clock.h"
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#include "generic/eth.h"
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#include "generic/eth_int.h"
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#include "generic/sr.h"
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THIS_FILE
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static void setup_read(eth_port_t *eth_port);
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static void read_int(eth_port_t *eth_port, int count);
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static void eth_issue_send(eth_port_t *eth_port);
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static void write_int(eth_port_t *eth_port);
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static void eth_restart(eth_port_t *eth_port, endpoint_t endpoint);
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static void send_getstat(eth_port_t *eth_port);
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void osdep_eth_init()
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{
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int i, j, rport;
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struct eth_conf *ecp;
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eth_port_t *eth_port, *rep;
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cp_grant_id_t gid;
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/* First initialize normal ethernet interfaces */
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for (i= 0, ecp= eth_conf, eth_port= eth_port_table;
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i<eth_conf_nr; i++, ecp++, eth_port++)
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{
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/* Set all grants to invalid */
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for (j= 0; j<IOVEC_NR; j++)
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eth_port->etp_osdep.etp_wr_iovec[j].iov_grant= -1;
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eth_port->etp_osdep.etp_wr_vec_grant= -1;
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for (j= 0; j<RD_IOVEC; j++)
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eth_port->etp_osdep.etp_rd_iovec[j].iov_grant= -1;
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eth_port->etp_osdep.etp_rd_vec_grant= -1;
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eth_port->etp_osdep.etp_state= OEPS_INIT;
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eth_port->etp_osdep.etp_flags= OEPF_EMPTY;
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eth_port->etp_osdep.etp_stat_gid= -1;
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eth_port->etp_osdep.etp_stat_buf= NULL;
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if (eth_is_vlan(ecp))
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continue;
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/* Allocate grants */
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for (j= 0; j<IOVEC_NR; j++)
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{
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if (cpf_getgrants(&gid, 1) != 1)
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{
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ip_panic((
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"osdep_eth_init: cpf_getgrants failed: %d\n",
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errno));
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}
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eth_port->etp_osdep.etp_wr_iovec[j].iov_grant= gid;
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}
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if (cpf_getgrants(&gid, 1) != 1)
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{
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ip_panic((
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"osdep_eth_init: cpf_getgrants failed: %d\n",
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errno));
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}
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eth_port->etp_osdep.etp_wr_vec_grant= gid;
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for (j= 0; j<RD_IOVEC; j++)
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{
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if (cpf_getgrants(&gid, 1) != 1)
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{
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ip_panic((
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"osdep_eth_init: cpf_getgrants failed: %d\n",
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errno));
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}
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eth_port->etp_osdep.etp_rd_iovec[j].iov_grant= gid;
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}
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if (cpf_getgrants(&gid, 1) != 1)
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{
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ip_panic((
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"osdep_eth_init: cpf_getgrants failed: %d\n",
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errno));
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}
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eth_port->etp_osdep.etp_rd_vec_grant= gid;
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eth_port->etp_osdep.etp_task= NONE;
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eth_port->etp_osdep.etp_recvconf= 0;
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ev_init(ð_port->etp_osdep.etp_recvev);
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sr_add_minor(if2minor(ecp->ec_ifno, ETH_DEV_OFF),
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i, eth_open, eth_close, eth_read,
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eth_write, eth_ioctl, eth_cancel, eth_select);
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eth_port->etp_flags |= EPF_ENABLED;
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eth_port->etp_vlan= 0;
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eth_port->etp_vlan_port= NULL;
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eth_port->etp_wr_pack= 0;
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eth_port->etp_rd_pack= 0;
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}
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/* And now come the VLANs */
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for (i= 0, ecp= eth_conf, eth_port= eth_port_table;
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i<eth_conf_nr; i++, ecp++, eth_port++)
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{
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if (!eth_is_vlan(ecp))
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continue;
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eth_port->etp_osdep.etp_task= NONE;
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ev_init(ð_port->etp_osdep.etp_recvev);
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rport= ecp->ec_port;
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assert(rport >= 0 && rport < eth_conf_nr);
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rep= ð_port_table[rport];
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if (!(rep->etp_flags & EPF_ENABLED))
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{
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printf(
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"eth%d: underlying ethernet device %d not enabled",
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i, rport);
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continue;
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}
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if (rep->etp_vlan != 0)
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{
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printf(
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"eth%d: underlying ethernet device %d is a VLAN",
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i, rport);
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continue;
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}
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if (rep->etp_flags & EPF_GOT_ADDR)
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{
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eth_port->etp_ethaddr= rep->etp_ethaddr;
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printf("osdep_eth_init: setting EPF_GOT_ADDR\n");
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eth_port->etp_flags |= EPF_GOT_ADDR;
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}
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sr_add_minor(if2minor(ecp->ec_ifno, ETH_DEV_OFF),
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i, eth_open, eth_close, eth_read,
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eth_write, eth_ioctl, eth_cancel, eth_select);
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eth_port->etp_flags |= EPF_ENABLED;
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eth_port->etp_vlan= ecp->ec_vlan;
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eth_port->etp_vlan_port= rep;
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assert(eth_port->etp_vlan != 0);
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eth_port->etp_wr_pack= 0;
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eth_port->etp_rd_pack= 0;
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eth_reg_vlan(rep, eth_port);
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}
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}
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void eth_write_port(eth_port, pack)
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eth_port_t *eth_port;
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acc_t *pack;
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{
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assert(!no_ethWritePort);
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assert(!eth_port->etp_vlan);
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assert(eth_port->etp_wr_pack == NULL);
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eth_port->etp_wr_pack= pack;
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if (eth_port->etp_osdep.etp_state != OEPS_IDLE)
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{
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eth_port->etp_osdep.etp_flags |= OEPF_NEED_SEND;
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return;
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}
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eth_issue_send(eth_port);
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}
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void eth_rec(message *m)
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{
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int i, r, flags;
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eth_port_t *loc_port, *vlan_port;
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for (i=0, loc_port= eth_port_table; i<eth_conf_nr; i++, loc_port++)
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{
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if (loc_port->etp_osdep.etp_task == m->m_source)
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break;
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}
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if (i >= eth_conf_nr)
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{
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printf("eth_rec: message 0x%x from unknown driver %d\n",
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m->m_type, m->m_source);
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return;
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}
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switch (m->m_type) {
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case DL_CONF_REPLY:
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if (loc_port->etp_osdep.etp_state != OEPS_CONF_SENT) {
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printf("eth_rec: got DL_CONF_REPLY from %d while in "
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"state %d (ignoring)\n", m->m_source,
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loc_port->etp_osdep.etp_state);
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return;
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}
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r= m->m_netdrv_net_dl_conf.stat;
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if (r < 0)
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{
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ip_warning(("eth_rec: DL_CONF returned error %d\n",
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r));
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/* Just leave it in limbo. Nothing more we can do. */
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return;
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}
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loc_port->etp_osdep.etp_flags &= ~OEPF_NEED_CONF;
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loc_port->etp_osdep.etp_state= OEPS_IDLE;
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loc_port->etp_flags |= EPF_ENABLED;
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memcpy(loc_port->etp_ethaddr.ea_addr,
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m->m_netdrv_net_dl_conf.hw_addr,
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sizeof(loc_port->etp_ethaddr.ea_addr));
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if (!(loc_port->etp_flags & EPF_GOT_ADDR))
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{
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loc_port->etp_flags |= EPF_GOT_ADDR;
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#if 0
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printf("eth_rec: calling eth_restart_ioctl\n");
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#endif
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eth_restart_ioctl(loc_port);
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/* Also update any VLANs on this device */
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for (i=0, vlan_port= eth_port_table; i<eth_conf_nr;
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i++, vlan_port++)
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{
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if (!(vlan_port->etp_flags & EPF_ENABLED))
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continue;
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if (vlan_port->etp_vlan_port != loc_port)
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continue;
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vlan_port->etp_ethaddr= loc_port->etp_ethaddr;
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vlan_port->etp_flags |= EPF_GOT_ADDR;
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eth_restart_ioctl(vlan_port);
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}
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}
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if (!(loc_port->etp_flags & EPF_READ_IP))
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loc_port->etp_osdep.etp_flags |= OEPF_NEED_RECV;
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break;
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case DL_STAT_REPLY:
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if (loc_port->etp_osdep.etp_state != OEPS_GETSTAT_SENT) {
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printf("eth_rec: got DL_STAT_REPLY from %d while in "
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"state %d (ignoring)\n", m->m_source,
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loc_port->etp_osdep.etp_state);
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return;
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}
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loc_port->etp_osdep.etp_state= OEPS_IDLE;
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loc_port->etp_osdep.etp_flags &= ~OEPF_NEED_STAT;
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assert(loc_port->etp_osdep.etp_stat_gid != -1);
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cpf_revoke(loc_port->etp_osdep.etp_stat_gid);
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loc_port->etp_osdep.etp_stat_gid= -1;
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loc_port->etp_osdep.etp_stat_buf= NULL;
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/* Finish ioctl */
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assert(loc_port->etp_flags & EPF_GOT_ADDR);
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eth_restart_ioctl(loc_port);
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break;
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case DL_TASK_REPLY:
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if (loc_port->etp_osdep.etp_state == OEPS_RECV_SENT ||
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loc_port->etp_osdep.etp_state == OEPS_SEND_SENT)
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loc_port->etp_osdep.etp_state= OEPS_IDLE;
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flags= m->m_netdrv_net_dl_task.flags;
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if (flags & DL_PACK_SEND)
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write_int(loc_port);
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if (flags & DL_PACK_RECV)
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read_int(loc_port, m->m_netdrv_net_dl_task.count);
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break;
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default:
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panic("invalid ethernet reply %d", m->m_type);
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}
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if (loc_port->etp_osdep.etp_state == OEPS_IDLE &&
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loc_port->etp_osdep.etp_flags & OEPF_NEED_SEND)
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{
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loc_port->etp_osdep.etp_flags &= ~OEPF_NEED_SEND;
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if (loc_port->etp_wr_pack)
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eth_issue_send(loc_port);
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}
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if (loc_port->etp_osdep.etp_state == OEPS_IDLE &&
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(loc_port->etp_osdep.etp_flags & OEPF_NEED_RECV))
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{
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loc_port->etp_osdep.etp_flags &= ~OEPF_NEED_RECV;
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if (!(loc_port->etp_flags & EPF_READ_IP))
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setup_read (loc_port);
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}
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if (loc_port->etp_osdep.etp_state == OEPS_IDLE &&
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(loc_port->etp_osdep.etp_flags & OEPF_NEED_CONF))
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{
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eth_set_rec_conf(loc_port,
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loc_port->etp_osdep.etp_recvconf);
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}
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if (loc_port->etp_osdep.etp_state == OEPS_IDLE &&
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(loc_port->etp_osdep.etp_flags & OEPF_NEED_STAT))
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{
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send_getstat(loc_port);
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}
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}
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void eth_check_driver(char *label, endpoint_t endpoint)
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{
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int i;
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eth_port_t *loc_port;
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struct eth_conf *ecp;
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/* Re-init ethernet interface */
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for (i= 0, ecp= eth_conf, loc_port= eth_port_table;
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i<eth_conf_nr; i++, ecp++, loc_port++)
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{
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if (eth_is_vlan(ecp))
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continue;
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if (strcmp(ecp->ec_label, label) != 0)
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{
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/* Wrong driver */
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continue;
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}
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eth_restart(loc_port, endpoint);
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}
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}
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int eth_get_stat(eth_port, eth_stat)
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eth_port_t *eth_port;
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eth_stat_t *eth_stat;
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{
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cp_grant_id_t gid;
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assert(!eth_port->etp_vlan);
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if (eth_port->etp_osdep.etp_flags & OEPF_NEED_STAT)
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ip_panic(( "eth_get_stat: getstat already in progress" ));
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gid= cpf_grant_direct(eth_port->etp_osdep.etp_task,
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(vir_bytes)eth_stat, sizeof(*eth_stat), CPF_WRITE);
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if (gid == -1)
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{
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ip_panic(( "eth_get_stat: cpf_grant_direct failed: %d\n",
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errno));
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}
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assert(eth_port->etp_osdep.etp_stat_gid == -1);
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eth_port->etp_osdep.etp_stat_gid= gid;
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eth_port->etp_osdep.etp_stat_buf= eth_stat;
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if (eth_port->etp_osdep.etp_state != OEPS_IDLE)
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{
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eth_port->etp_osdep.etp_flags |= OEPF_NEED_STAT;
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return SUSPEND;
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}
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send_getstat(eth_port);
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return SUSPEND;
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}
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void eth_set_rec_conf (eth_port, flags)
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eth_port_t *eth_port;
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u32_t flags;
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{
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int r;
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unsigned dl_flags, mask;
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message mess;
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assert(!eth_port->etp_vlan);
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if (!(eth_port->etp_flags & EPF_GOT_ADDR))
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{
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/* We have never seen the device. */
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#if 0
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printf("eth_set_rec_conf: waiting for device to appear\n");
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#endif
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return;
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}
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if (eth_port->etp_osdep.etp_state != OEPS_IDLE)
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{
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#if 0
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printf(
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"eth_set_rec_conf: setting OEPF_NEED_CONF, state = %d\n",
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eth_port->etp_osdep.etp_state);
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#endif
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eth_port->etp_osdep.etp_flags |= OEPF_NEED_CONF;
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return;
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}
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mask = NWEO_EN_BROAD | NWEO_EN_MULTI | NWEO_EN_PROMISC;
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if ((eth_port->etp_osdep.etp_recvconf & mask) == (flags & mask))
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{
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/* No change for the driver, so don't send an update */
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return;
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}
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eth_port->etp_osdep.etp_recvconf= flags;
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dl_flags= DL_NOMODE;
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if (flags & NWEO_EN_BROAD)
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dl_flags |= DL_BROAD_REQ;
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if (flags & NWEO_EN_MULTI)
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dl_flags |= DL_MULTI_REQ;
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if (flags & NWEO_EN_PROMISC)
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dl_flags |= DL_PROMISC_REQ;
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mess.m_type= DL_CONF;
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mess.m_net_netdrv_dl_conf.mode = dl_flags;
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assert(eth_port->etp_osdep.etp_state == OEPS_IDLE);
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r= asynsend(eth_port->etp_osdep.etp_task, &mess);
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eth_port->etp_osdep.etp_state= OEPS_CONF_SENT;
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if (r < 0)
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{
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printf("eth_set_rec_conf: asynsend to %d failed: %d\n",
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eth_port->etp_osdep.etp_task, r);
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return;
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}
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}
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static void eth_issue_send(eth_port)
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eth_port_t *eth_port;
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{
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int i, r, pack_size;
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acc_t *pack, *pack_ptr;
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iovec_s_t *iovec;
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message m;
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iovec= eth_port->etp_osdep.etp_wr_iovec;
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pack= eth_port->etp_wr_pack;
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pack_size= 0;
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for (i=0, pack_ptr= pack; i<IOVEC_NR && pack_ptr; i++,
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pack_ptr= pack_ptr->acc_next)
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{
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r= cpf_setgrant_direct(iovec[i].iov_grant,
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eth_port->etp_osdep.etp_task,
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(vir_bytes)ptr2acc_data(pack_ptr),
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(vir_bytes)pack_ptr->acc_length,
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CPF_READ);
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if (r != 0)
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{
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ip_panic((
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"eth_write_port: cpf_setgrant_direct failed: %d\n",
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errno));
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}
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pack_size += iovec[i].iov_size= pack_ptr->acc_length;
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}
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if (i>= IOVEC_NR)
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{
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pack= bf_pack(pack); /* packet is too fragmented */
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eth_port->etp_wr_pack= pack;
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pack_size= 0;
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for (i=0, pack_ptr= pack; i<IOVEC_NR && pack_ptr;
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i++, pack_ptr= pack_ptr->acc_next)
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{
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r= cpf_setgrant_direct(iovec[i].iov_grant,
|
|
eth_port->etp_osdep.etp_task,
|
|
(vir_bytes)ptr2acc_data(pack_ptr),
|
|
(vir_bytes)pack_ptr->acc_length,
|
|
CPF_READ);
|
|
if (r != 0)
|
|
{
|
|
ip_panic((
|
|
"eth_write_port: cpf_setgrant_direct failed: %d\n",
|
|
errno));
|
|
}
|
|
pack_size += iovec[i].iov_size= pack_ptr->acc_length;
|
|
}
|
|
}
|
|
assert (i< IOVEC_NR);
|
|
assert (pack_size >= ETH_MIN_PACK_SIZE);
|
|
|
|
r= cpf_setgrant_direct(eth_port->etp_osdep.etp_wr_vec_grant,
|
|
eth_port->etp_osdep.etp_task,
|
|
(vir_bytes)iovec,
|
|
(vir_bytes)(i * sizeof(iovec[0])),
|
|
CPF_READ);
|
|
if (r != 0)
|
|
{
|
|
ip_panic((
|
|
"eth_write_port: cpf_setgrant_direct failed: %d\n",
|
|
errno));
|
|
}
|
|
m.m_type= DL_WRITEV_S;
|
|
m.m_net_netdrv_dl_writev_s.count= i;
|
|
m.m_net_netdrv_dl_writev_s.grant= eth_port->etp_osdep.etp_wr_vec_grant;
|
|
|
|
assert(eth_port->etp_osdep.etp_state == OEPS_IDLE);
|
|
r= asynsend(eth_port->etp_osdep.etp_task, &m);
|
|
|
|
if (r < 0)
|
|
{
|
|
printf("eth_issue_send: send to %d failed: %d\n",
|
|
eth_port->etp_osdep.etp_task, r);
|
|
return;
|
|
}
|
|
eth_port->etp_osdep.etp_state= OEPS_SEND_SENT;
|
|
}
|
|
|
|
static void write_int(eth_port_t *eth_port)
|
|
{
|
|
acc_t *pack;
|
|
int multicast;
|
|
u8_t *eth_dst_ptr;
|
|
|
|
pack= eth_port->etp_wr_pack;
|
|
if (pack == NULL)
|
|
{
|
|
printf("write_int: strange no packet on eth port %d\n",
|
|
(int)(eth_port-eth_port_table));
|
|
eth_restart_write(eth_port);
|
|
return;
|
|
}
|
|
|
|
eth_port->etp_wr_pack= NULL;
|
|
|
|
eth_dst_ptr= (u8_t *)ptr2acc_data(pack);
|
|
multicast= (*eth_dst_ptr & 1); /* low order bit indicates multicast */
|
|
if (multicast || (eth_port->etp_osdep.etp_recvconf & NWEO_EN_PROMISC))
|
|
{
|
|
assert(!no_ethWritePort);
|
|
no_ethWritePort= 1;
|
|
eth_arrive(eth_port, pack, bf_bufsize(pack));
|
|
assert(no_ethWritePort);
|
|
no_ethWritePort= 0;
|
|
}
|
|
else
|
|
bf_afree(pack);
|
|
|
|
eth_restart_write(eth_port);
|
|
}
|
|
|
|
static void read_int(eth_port, count)
|
|
eth_port_t *eth_port;
|
|
int count;
|
|
{
|
|
acc_t *pack, *pack_ptr, *cut_pack;
|
|
iovec_s_t *iovec;
|
|
int i, r;
|
|
|
|
/* A buggy driver might try to feed us a reply for a request we never
|
|
* sent. Don't let this cause a crash further up.
|
|
*/
|
|
if (!(eth_port->etp_flags & EPF_READ_IP))
|
|
{
|
|
printf("mnx_eth`read_int: read reply with no read going on\n");
|
|
return;
|
|
}
|
|
|
|
pack= eth_port->etp_rd_pack;
|
|
eth_port->etp_rd_pack= NULL;
|
|
|
|
/* Invalidate the grants first, so that the ethernet driver can no
|
|
* longer modify the contents of the packet.
|
|
*/
|
|
iovec= eth_port->etp_osdep.etp_rd_iovec;
|
|
for (i=0, pack_ptr= pack; i<RD_IOVEC && pack_ptr;
|
|
i++, pack_ptr= pack_ptr->acc_next)
|
|
{
|
|
r= cpf_setgrant_disable(iovec[i].iov_grant);
|
|
if (r != 0)
|
|
{
|
|
ip_panic((
|
|
"mnx_eth`read_int: cpf_setgrant_disable failed: %d\n",
|
|
errno));
|
|
}
|
|
}
|
|
|
|
if (count < ETH_MIN_PACK_SIZE)
|
|
{
|
|
printf("mnx_eth`read_int: packet size too small (%d)\n",
|
|
count);
|
|
bf_afree(pack);
|
|
}
|
|
else if (count > ETH_MAX_PACK_SIZE_TAGGED)
|
|
{
|
|
printf("mnx_eth`read_int: packet size too big (%d)\n",
|
|
count);
|
|
bf_afree(pack);
|
|
}
|
|
else
|
|
{
|
|
cut_pack= bf_cut(pack, 0, count);
|
|
bf_afree(pack);
|
|
|
|
assert(!no_ethWritePort);
|
|
no_ethWritePort= 1;
|
|
eth_arrive(eth_port, cut_pack, count);
|
|
assert(no_ethWritePort);
|
|
no_ethWritePort= 0;
|
|
}
|
|
|
|
eth_port->etp_flags &= ~(EPF_READ_IP|EPF_READ_SP);
|
|
setup_read(eth_port);
|
|
}
|
|
|
|
static void setup_read(eth_port)
|
|
eth_port_t *eth_port;
|
|
{
|
|
acc_t *pack, *pack_ptr;
|
|
message mess;
|
|
iovec_s_t *iovec;
|
|
int i, r;
|
|
|
|
assert(!eth_port->etp_vlan);
|
|
assert(!(eth_port->etp_flags & (EPF_READ_IP|EPF_READ_SP)));
|
|
|
|
if (eth_port->etp_osdep.etp_state != OEPS_IDLE)
|
|
{
|
|
eth_port->etp_osdep.etp_flags |= OEPF_NEED_RECV;
|
|
|
|
return;
|
|
}
|
|
|
|
assert (!eth_port->etp_rd_pack);
|
|
|
|
iovec= eth_port->etp_osdep.etp_rd_iovec;
|
|
pack= bf_memreq (ETH_MAX_PACK_SIZE_TAGGED);
|
|
|
|
for (i=0, pack_ptr= pack; i<RD_IOVEC && pack_ptr;
|
|
i++, pack_ptr= pack_ptr->acc_next)
|
|
{
|
|
r= cpf_setgrant_direct(iovec[i].iov_grant,
|
|
eth_port->etp_osdep.etp_task,
|
|
(vir_bytes)ptr2acc_data(pack_ptr),
|
|
(vir_bytes)pack_ptr->acc_length,
|
|
CPF_WRITE);
|
|
if (r != 0)
|
|
{
|
|
ip_panic((
|
|
"mnx_eth`setup_read: cpf_setgrant_direct failed: %d\n",
|
|
errno));
|
|
}
|
|
iovec[i].iov_size= (vir_bytes)pack_ptr->acc_length;
|
|
}
|
|
assert (!pack_ptr);
|
|
|
|
r= cpf_setgrant_direct(eth_port->etp_osdep.etp_rd_vec_grant,
|
|
eth_port->etp_osdep.etp_task,
|
|
(vir_bytes)iovec,
|
|
(vir_bytes)(i * sizeof(iovec[0])),
|
|
CPF_READ);
|
|
if (r != 0)
|
|
{
|
|
ip_panic((
|
|
"mnx_eth`setup_read: cpf_setgrant_direct failed: %d\n",
|
|
errno));
|
|
}
|
|
|
|
mess.m_type= DL_READV_S;
|
|
mess.m_net_netdrv_dl_readv_s.count= i;
|
|
mess.m_net_netdrv_dl_readv_s.grant= eth_port->etp_osdep.etp_rd_vec_grant;
|
|
|
|
assert(eth_port->etp_osdep.etp_state == OEPS_IDLE);
|
|
|
|
r= asynsend(eth_port->etp_osdep.etp_task, &mess);
|
|
eth_port->etp_osdep.etp_state= OEPS_RECV_SENT;
|
|
|
|
if (r < 0)
|
|
{
|
|
printf(
|
|
"mnx_eth`setup_read: asynsend to %d failed: %d\n",
|
|
eth_port->etp_osdep.etp_task, r);
|
|
}
|
|
eth_port->etp_rd_pack= pack;
|
|
eth_port->etp_flags |= EPF_READ_IP;
|
|
eth_port->etp_flags |= EPF_READ_SP;
|
|
}
|
|
|
|
static void eth_restart(eth_port_t *eth_port, endpoint_t endpoint)
|
|
{
|
|
int r;
|
|
unsigned flags, dl_flags;
|
|
cp_grant_id_t gid;
|
|
message mess;
|
|
|
|
eth_port->etp_osdep.etp_task= endpoint;
|
|
|
|
switch(eth_port->etp_osdep.etp_state)
|
|
{
|
|
case OEPS_INIT:
|
|
case OEPS_CONF_SENT:
|
|
case OEPS_RECV_SENT:
|
|
case OEPS_SEND_SENT:
|
|
/* We can safely ignore the pending CONF, RECV, and SEND
|
|
* requests. If this is the first time that we see this
|
|
* driver at all, that's fine too.
|
|
*/
|
|
eth_port->etp_osdep.etp_state= OEPS_IDLE;
|
|
break;
|
|
case OEPS_GETSTAT_SENT:
|
|
/* Set the OEPF_NEED_STAT to trigger a new request */
|
|
eth_port->etp_osdep.etp_flags |= OEPF_NEED_STAT;
|
|
eth_port->etp_osdep.etp_state= OEPS_IDLE;
|
|
break;
|
|
}
|
|
|
|
/* If there is a pending GETSTAT request then we have to create a
|
|
* new grant.
|
|
*/
|
|
if (eth_port->etp_osdep.etp_flags & OEPF_NEED_STAT)
|
|
{
|
|
assert(eth_port->etp_osdep.etp_stat_gid != -1);
|
|
cpf_revoke(eth_port->etp_osdep.etp_stat_gid);
|
|
|
|
gid= cpf_grant_direct(eth_port->etp_osdep.etp_task,
|
|
(vir_bytes)eth_port->etp_osdep.etp_stat_buf,
|
|
sizeof(*eth_port->etp_osdep.etp_stat_buf), CPF_WRITE);
|
|
if (gid == -1)
|
|
{
|
|
ip_panic((
|
|
"eth_restart: cpf_grant_direct failed: %d\n",
|
|
errno));
|
|
}
|
|
eth_port->etp_osdep.etp_stat_gid= gid;
|
|
}
|
|
|
|
flags= eth_port->etp_osdep.etp_recvconf;
|
|
dl_flags= DL_NOMODE;
|
|
if (flags & NWEO_EN_BROAD)
|
|
dl_flags |= DL_BROAD_REQ;
|
|
if (flags & NWEO_EN_MULTI)
|
|
dl_flags |= DL_MULTI_REQ;
|
|
if (flags & NWEO_EN_PROMISC)
|
|
dl_flags |= DL_PROMISC_REQ;
|
|
mess.m_type= DL_CONF;
|
|
mess.m_net_netdrv_dl_conf.mode= dl_flags;
|
|
|
|
compare(eth_port->etp_osdep.etp_state, ==, OEPS_IDLE);
|
|
r= asynsend(eth_port->etp_osdep.etp_task, &mess);
|
|
if (r<0)
|
|
{
|
|
printf(
|
|
"eth_restart: send to ethernet task %d failed: %d\n",
|
|
eth_port->etp_osdep.etp_task, r);
|
|
return;
|
|
}
|
|
eth_port->etp_osdep.etp_state= OEPS_CONF_SENT;
|
|
|
|
if (eth_port->etp_wr_pack)
|
|
{
|
|
bf_afree(eth_port->etp_wr_pack);
|
|
eth_port->etp_wr_pack= NULL;
|
|
eth_restart_write(eth_port);
|
|
}
|
|
if (eth_port->etp_rd_pack)
|
|
{
|
|
bf_afree(eth_port->etp_rd_pack);
|
|
eth_port->etp_rd_pack= NULL;
|
|
eth_port->etp_flags &= ~(EPF_READ_IP|EPF_READ_SP);
|
|
}
|
|
|
|
}
|
|
|
|
static void send_getstat(eth_port)
|
|
eth_port_t *eth_port;
|
|
{
|
|
int r;
|
|
message mess;
|
|
|
|
mess.m_type= DL_GETSTAT_S;
|
|
mess.m_net_netdrv_dl_getstat_s.grant= eth_port->etp_osdep.etp_stat_gid;
|
|
|
|
assert(eth_port->etp_osdep.etp_state == OEPS_IDLE);
|
|
|
|
r= asynsend(eth_port->etp_osdep.etp_task, &mess);
|
|
eth_port->etp_osdep.etp_state= OEPS_GETSTAT_SENT;
|
|
|
|
if (r != OK)
|
|
ip_panic(( "eth_get_stat: asynsend failed: %d", r));
|
|
}
|
|
|
|
/*
|
|
* $PchId: mnx_eth.c,v 1.16 2005/06/28 14:24:37 philip Exp $
|
|
*/
|