1011 lines
23 KiB
C
1011 lines
23 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/ds.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 int recv_debug= 0;
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FORWARD _PROTOTYPE( void setup_read, (eth_port_t *eth_port) );
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FORWARD _PROTOTYPE( void read_int, (eth_port_t *eth_port, int count) );
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FORWARD _PROTOTYPE( void eth_issue_send, (eth_port_t *eth_port) );
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FORWARD _PROTOTYPE( void write_int, (eth_port_t *eth_port) );
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FORWARD _PROTOTYPE( void eth_recvev, (event_t *ev, ev_arg_t ev_arg) );
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FORWARD _PROTOTYPE( void eth_sendev, (event_t *ev, ev_arg_t ev_arg) );
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FORWARD _PROTOTYPE( eth_port_t *find_port, (message *m) );
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FORWARD _PROTOTYPE( void eth_restart, (eth_port_t *eth_port, int tasknr) );
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FORWARD _PROTOTYPE( void send_getstat, (eth_port_t *eth_port) );
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PUBLIC void osdep_eth_init()
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{
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int i, j, r, rport;
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u32_t tasknr;
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struct eth_conf *ecp;
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eth_port_t *eth_port, *rep;
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message mess;
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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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r= ds_retrieve_label_num(ecp->ec_task, &tasknr);
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if (r != OK && r != ESRCH)
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{
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printf("inet: ds_retrieve_label_num failed for '%s': %d\n",
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ecp->ec_task, r);
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}
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if (r != OK)
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{
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/* Eventually, we expect ethernet drivers to be
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* started after INET. So we always end up here. And
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* the findproc can be removed.
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*/
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#if 0
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printf("eth%d: unable to find task %s: %d\n",
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i, ecp->ec_task, r);
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#endif
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tasknr= ANY;
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}
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eth_port->etp_osdep.etp_port= ecp->ec_port;
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eth_port->etp_osdep.etp_task= tasknr;
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eth_port->etp_osdep.etp_recvconf= 0;
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eth_port->etp_osdep.etp_send_ev= 0;
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ev_init(ð_port->etp_osdep.etp_recvev);
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mess.m_type= DL_CONF;
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mess.DL_PORT= eth_port->etp_osdep.etp_port;
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mess.DL_PROC= this_proc;
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mess.DL_MODE= DL_NOMODE;
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if (tasknr == ANY)
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r= ENXIO;
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else
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{
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assert(eth_port->etp_osdep.etp_state == OEPS_INIT);
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r= asynsend(eth_port->etp_osdep.etp_task, &mess);
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if (r == OK)
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eth_port->etp_osdep.etp_state= OEPS_CONF_SENT;
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else
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{
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printf(
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"osdep_eth_init: unable to send to ethernet task, error= %d\n",
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r);
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}
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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= 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_port= ecp->ec_port;
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eth_port->etp_osdep.etp_task= ANY;
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ev_init(ð_port->etp_osdep.etp_recvev);
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rport= eth_port->etp_osdep.etp_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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PUBLIC 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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#if 0
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PRIVATE int notification_count;
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#endif
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PUBLIC void eth_rec(message *m)
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{
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int i, r, m_type, stat;
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eth_port_t *loc_port, *vlan_port;
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char *drivername;
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struct eth_conf *ecp;
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m_type= m->m_type;
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if (m_type == DL_NAME_REPLY)
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{
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drivername= m->m3_ca1;
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#if 0
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printf("eth_rec: got name: %s\n", drivername);
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notification_count= 0;
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#endif
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/* Re-init ethernet interfaces */
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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_task, drivername) != 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, m->m_source);
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}
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return;
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}
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assert(m_type == DL_CONF_REPLY || m_type == DL_TASK_REPLY ||
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m_type == DL_STAT_REPLY);
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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_port == m->DL_PORT &&
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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: bad port %d in message type 0x%x from %d\n",
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m->DL_PORT, m_type, m->m_source);
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return;
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}
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if (loc_port->etp_osdep.etp_state == OEPS_CONF_SENT)
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{
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if (m_type == DL_TASK_REPLY)
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{
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stat= m->DL_STAT & 0xffff;
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if (stat & DL_PACK_SEND)
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write_int(loc_port);
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if (stat & DL_PACK_RECV)
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read_int(loc_port, m->DL_COUNT);
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return;
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}
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if (m_type != DL_CONF_REPLY)
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{
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printf(
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"eth_rec: got bad message type 0x%x from %d in CONF state\n",
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m_type, m->m_source);
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return;
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}
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r= m->m3_i1;
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if (r == ENXIO)
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{
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printf(
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"eth_rec(conf_reply): no ethernet device at task=%d,port=%d\n",
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loc_port->etp_osdep.etp_task,
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loc_port->etp_osdep.etp_port);
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return;
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}
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if (r < 0)
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{
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ip_panic(("eth_rec: DL_INIT returned error %d\n", r));
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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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loc_port->etp_ethaddr= *(ether_addr_t *)m->m3_ca1;
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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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setup_read (loc_port);
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#if 0
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if (loc_port->etp_osdep.etp_flags & OEPF_NEED_SEND)
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{
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printf("eth_rec(conf): OEPF_NEED_SEND is set\n");
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}
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if (loc_port->etp_osdep.etp_flags & OEPF_NEED_RECV)
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{
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printf("eth_rec(conf): OEPF_NEED_RECV is set\n");
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}
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if (loc_port->etp_osdep.etp_flags & OEPF_NEED_STAT)
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{
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printf("eth_rec(conf): OEPF_NEED_STAT is set\n");
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}
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#endif
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return;
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}
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if (loc_port->etp_osdep.etp_state == OEPS_GETSTAT_SENT)
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{
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if (m_type != DL_STAT_REPLY)
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{
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printf(
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"eth_rec: got bad message type 0x%x from %d in GETSTAT state\n",
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m_type, m->m_source);
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return;
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}
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r= m->DL_STAT;
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if (r != OK)
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{
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ip_warning(("eth_rec: DL_STAT returned error %d\n",
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r));
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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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#if 0
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if (loc_port->etp_osdep.etp_flags & OEPF_NEED_SEND)
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{
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printf("eth_rec(stat): OEPF_NEED_SEND is set\n");
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}
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if (loc_port->etp_osdep.etp_flags & OEPF_NEED_RECV)
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{
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printf("eth_rec(stat): OEPF_NEED_RECV is set\n");
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}
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if (loc_port->etp_osdep.etp_flags & OEPF_NEED_CONF)
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{
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printf("eth_rec(stat): OEPF_NEED_CONF is set\n");
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}
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#endif
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#if 0
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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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#endif
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return;
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}
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assert(loc_port->etp_osdep.etp_state == OEPS_IDLE ||
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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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(printf("etp_state = %d\n", loc_port->etp_osdep.etp_state), 0));
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loc_port->etp_osdep.etp_state= OEPS_IDLE;
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#if 0 /* Ethernet driver is not trusted */
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set_time (m->DL_CLCK);
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#endif
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stat= m->DL_STAT & 0xffff;
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#if 0
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if (!(stat & (DL_PACK_SEND|DL_PACK_RECV)))
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printf("eth_rec: neither DL_PACK_SEND nor DL_PACK_RECV\n");
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#endif
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if (stat & DL_PACK_SEND)
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write_int(loc_port);
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if (stat & DL_PACK_RECV)
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{
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if (recv_debug)
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{
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printf("eth_rec: eth%d got DL_PACK_RECV\n",
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m->DL_PORT);
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}
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read_int(loc_port, m->DL_COUNT);
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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_flags & OEPF_NEED_CONF)
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{
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printf("eth_rec: OEPF_NEED_CONF is set\n");
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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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}
|
|
}
|
|
|
|
PUBLIC void eth_check_drivers(message *m)
|
|
{
|
|
int r, tasknr;
|
|
|
|
tasknr= m->m_source;
|
|
#if 0
|
|
if (notification_count < 100)
|
|
{
|
|
notification_count++;
|
|
printf("eth_check_drivers: got a notification #%d from %d\n",
|
|
notification_count, tasknr);
|
|
}
|
|
#endif
|
|
|
|
m->m_type= DL_GETNAME;
|
|
r= asynsend(tasknr, m);
|
|
if (r != OK)
|
|
{
|
|
printf("eth_check_drivers: asynsend to %d failed: %d\n",
|
|
tasknr, r);
|
|
return;
|
|
}
|
|
}
|
|
|
|
PUBLIC int eth_get_stat(eth_port, eth_stat)
|
|
eth_port_t *eth_port;
|
|
eth_stat_t *eth_stat;
|
|
{
|
|
cp_grant_id_t gid;
|
|
|
|
assert(!eth_port->etp_vlan);
|
|
|
|
if (eth_port->etp_osdep.etp_flags & OEPF_NEED_STAT)
|
|
ip_panic(( "eth_get_stat: getstat already in progress" ));
|
|
|
|
gid= cpf_grant_direct(eth_port->etp_osdep.etp_task,
|
|
(vir_bytes)eth_stat, sizeof(*eth_stat), CPF_WRITE);
|
|
if (gid == -1)
|
|
{
|
|
ip_panic(( "eth_get_stat: cpf_grant_direct failed: %d\n",
|
|
errno));
|
|
}
|
|
assert(eth_port->etp_osdep.etp_stat_gid == -1);
|
|
eth_port->etp_osdep.etp_stat_gid= gid;
|
|
eth_port->etp_osdep.etp_stat_buf= eth_stat;
|
|
|
|
if (eth_port->etp_osdep.etp_state != OEPS_IDLE)
|
|
{
|
|
eth_port->etp_osdep.etp_flags |= OEPF_NEED_STAT;
|
|
return SUSPEND;
|
|
}
|
|
|
|
send_getstat(eth_port);
|
|
|
|
return SUSPEND;
|
|
}
|
|
|
|
PUBLIC void eth_set_rec_conf (eth_port, flags)
|
|
eth_port_t *eth_port;
|
|
u32_t flags;
|
|
{
|
|
int r;
|
|
unsigned dl_flags, mask;
|
|
message mess;
|
|
|
|
assert(!eth_port->etp_vlan);
|
|
|
|
if (!(eth_port->etp_flags & EPF_GOT_ADDR))
|
|
{
|
|
/* We have never seen the device. */
|
|
#if 0
|
|
printf("eth_set_rec_conf: waiting for device to appear\n");
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
if (eth_port->etp_osdep.etp_state != OEPS_IDLE)
|
|
{
|
|
printf(
|
|
"eth_set_rec_conf: setting OEPF_NEED_CONF, state = %d\n",
|
|
eth_port->etp_osdep.etp_state);
|
|
eth_port->etp_osdep.etp_flags |= OEPF_NEED_CONF;
|
|
return;
|
|
}
|
|
|
|
mask = NWEO_EN_BROAD | NWEO_EN_MULTI | NWEO_EN_PROMISC;
|
|
if ((eth_port->etp_osdep.etp_recvconf & mask) == (flags & mask))
|
|
{
|
|
/* No change for the driver, so don't send an update */
|
|
return;
|
|
}
|
|
|
|
eth_port->etp_osdep.etp_recvconf= flags;
|
|
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.DL_PORT= eth_port->etp_osdep.etp_port;
|
|
mess.DL_PROC= this_proc;
|
|
mess.DL_MODE= dl_flags;
|
|
|
|
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_CONF_SENT;
|
|
|
|
if (r < 0)
|
|
{
|
|
printf("eth_set_rec_conf: asynsend to %d failed: %d\n",
|
|
eth_port->etp_osdep.etp_task, r);
|
|
return;
|
|
}
|
|
}
|
|
|
|
PRIVATE void eth_issue_send(eth_port)
|
|
eth_port_t *eth_port;
|
|
{
|
|
int i, r, pack_size;
|
|
acc_t *pack, *pack_ptr;
|
|
iovec_s_t *iovec;
|
|
message m;
|
|
|
|
iovec= eth_port->etp_osdep.etp_wr_iovec;
|
|
pack= eth_port->etp_wr_pack;
|
|
pack_size= 0;
|
|
for (i=0, pack_ptr= pack; i<IOVEC_NR && 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_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;
|
|
}
|
|
if (i>= IOVEC_NR)
|
|
{
|
|
pack= bf_pack(pack); /* packet is too fragmented */
|
|
eth_port->etp_wr_pack= pack;
|
|
pack_size= 0;
|
|
for (i=0, pack_ptr= pack; i<IOVEC_NR && 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_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.DL_COUNT= i;
|
|
m.DL_GRANT= eth_port->etp_osdep.etp_wr_vec_grant;
|
|
m.m_type= DL_WRITEV_S;
|
|
|
|
m.DL_PORT= eth_port->etp_osdep.etp_port;
|
|
m.DL_PROC= this_proc;
|
|
m.DL_MODE= DL_NOMODE;
|
|
|
|
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;
|
|
}
|
|
|
|
PRIVATE void write_int(eth_port)
|
|
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",
|
|
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);
|
|
}
|
|
|
|
PRIVATE void read_int(eth_port, count)
|
|
eth_port_t *eth_port;
|
|
int count;
|
|
{
|
|
acc_t *pack, *cut_pack;
|
|
|
|
pack= eth_port->etp_rd_pack;
|
|
eth_port->etp_rd_pack= NULL;
|
|
|
|
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);
|
|
}
|
|
|
|
PRIVATE void setup_read(eth_port)
|
|
eth_port_t *eth_port;
|
|
{
|
|
acc_t *pack, *pack_ptr;
|
|
message mess1;
|
|
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));
|
|
}
|
|
|
|
mess1.m_type= DL_READV_S;
|
|
mess1.DL_PORT= eth_port->etp_osdep.etp_port;
|
|
mess1.DL_PROC= this_proc;
|
|
mess1.DL_COUNT= i;
|
|
mess1.DL_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, &mess1);
|
|
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;
|
|
}
|
|
|
|
PRIVATE void eth_recvev(ev, ev_arg)
|
|
event_t *ev;
|
|
ev_arg_t ev_arg;
|
|
{
|
|
eth_port_t *eth_port;
|
|
message *m_ptr;
|
|
|
|
eth_port= ev_arg.ev_ptr;
|
|
assert(ev == ð_port->etp_osdep.etp_recvev);
|
|
m_ptr= ð_port->etp_osdep.etp_recvrepl;
|
|
|
|
assert(m_ptr->m_type == DL_TASK_REPLY);
|
|
assert(eth_port->etp_osdep.etp_port == m_ptr->DL_PORT &&
|
|
eth_port->etp_osdep.etp_task == m_ptr->m_source);
|
|
|
|
assert(m_ptr->DL_STAT & DL_PACK_RECV);
|
|
m_ptr->DL_STAT &= ~DL_PACK_RECV;
|
|
|
|
if (recv_debug)
|
|
{
|
|
printf("eth_recvev: eth%d got DL_PACK_RECV\n", m_ptr->DL_PORT);
|
|
}
|
|
|
|
read_int(eth_port, m_ptr->DL_COUNT);
|
|
}
|
|
|
|
PRIVATE void eth_sendev(ev, ev_arg)
|
|
event_t *ev;
|
|
ev_arg_t ev_arg;
|
|
{
|
|
eth_port_t *eth_port;
|
|
message *m_ptr;
|
|
|
|
eth_port= ev_arg.ev_ptr;
|
|
assert(ev == ð_port->etp_sendev);
|
|
m_ptr= ð_port->etp_osdep.etp_sendrepl;
|
|
|
|
assert (m_ptr->m_type == DL_TASK_REPLY);
|
|
assert(eth_port->etp_osdep.etp_port == m_ptr->DL_PORT &&
|
|
eth_port->etp_osdep.etp_task == m_ptr->m_source);
|
|
|
|
assert(m_ptr->DL_STAT & DL_PACK_SEND);
|
|
m_ptr->DL_STAT &= ~DL_PACK_SEND;
|
|
assert(eth_port->etp_osdep.etp_send_ev);
|
|
eth_port->etp_osdep.etp_send_ev= 0;
|
|
|
|
/* packet is sent */
|
|
write_int(eth_port);
|
|
}
|
|
|
|
PRIVATE eth_port_t *find_port(m)
|
|
message *m;
|
|
{
|
|
eth_port_t *loc_port;
|
|
int i;
|
|
|
|
for (i=0, loc_port= eth_port_table; i<eth_conf_nr; i++, loc_port++)
|
|
{
|
|
if (loc_port->etp_osdep.etp_port == m->DL_PORT &&
|
|
loc_port->etp_osdep.etp_task == m->m_source)
|
|
break;
|
|
}
|
|
assert (i<eth_conf_nr);
|
|
return loc_port;
|
|
}
|
|
|
|
static void eth_restart(eth_port, tasknr)
|
|
eth_port_t *eth_port;
|
|
int tasknr;
|
|
{
|
|
int r;
|
|
unsigned flags, dl_flags;
|
|
cp_grant_id_t gid;
|
|
message mess;
|
|
|
|
if (eth_port->etp_osdep.etp_state != OEPS_INIT) {
|
|
printf("eth_restart: restarting eth%d, task %d, port %d\n",
|
|
eth_port-eth_port_table, tasknr,
|
|
eth_port->etp_osdep.etp_port);
|
|
}
|
|
|
|
if (eth_port->etp_osdep.etp_task == tasknr)
|
|
{
|
|
printf(
|
|
"eth_restart: task number did not change. Aborting restart\n");
|
|
return;
|
|
}
|
|
eth_port->etp_osdep.etp_task= tasknr;
|
|
|
|
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.DL_PORT= eth_port->etp_osdep.etp_port;
|
|
mess.DL_PROC= this_proc;
|
|
mess.DL_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);
|
|
}
|
|
|
|
}
|
|
|
|
PRIVATE void send_getstat(eth_port)
|
|
eth_port_t *eth_port;
|
|
{
|
|
int r;
|
|
message mess;
|
|
|
|
mess.m_type= DL_GETSTAT_S;
|
|
mess.DL_PORT= eth_port->etp_osdep.etp_port;
|
|
mess.DL_PROC= this_proc;
|
|
mess.DL_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 $
|
|
*/
|