1573 lines
52 KiB
C
1573 lines
52 KiB
C
/*-
|
||
* Copyright (c) 1995 Matt Thomas (matt@lkg.dec.com)
|
||
* All rights reserved.
|
||
*
|
||
* Redistribution and use in source and binary forms, with or without
|
||
* modification, are permitted provided that the following conditions
|
||
* are met:
|
||
* 1. Redistributions of source code must retain the above copyright
|
||
* notice, this list of conditions and the following disclaimer.
|
||
* 2. The name of the author may not be used to endorse or promote products
|
||
* derived from this software withough specific prior written permission
|
||
*
|
||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
|
||
*
|
||
* $Id: pdq.c,v 1.1 1995/03/14 09:16:06 davidg Exp $
|
||
*
|
||
* $Log: pdq.c,v $
|
||
* Revision 1.1 1995/03/14 09:16:06 davidg
|
||
* Added support for generic FDDI and the DEC DEFEA and DEFPA FDDI adapters.
|
||
*
|
||
* Submitted by: Matt Thomas
|
||
*
|
||
* Revision 1.8 1995/03/14 01:52:52 thomas
|
||
* Update for new FreeBSD PCI Interrupt interface
|
||
*
|
||
* Revision 1.7 1995/03/07 23:03:16 thomas
|
||
* Fix SMT queue processing
|
||
*
|
||
* Revision 1.6 1995/03/06 18:03:47 thomas
|
||
* restart trasmitter once link is available
|
||
*
|
||
* Revision 1.5 1995/03/06 17:07:56 thomas
|
||
* Add copyright/disclaimer
|
||
* Add error recovery code.
|
||
* Add BPF SMT support
|
||
*
|
||
* Revision 1.3 1995/03/03 13:48:35 thomas
|
||
* more fixes
|
||
*
|
||
*
|
||
*/
|
||
|
||
/*
|
||
* DEC PDQ FDDI Controller O/S independent code
|
||
*
|
||
* Written by Matt Thomas <matt@lkg.dec.com>
|
||
*
|
||
* This module should work any PDQ based board. Note that changes for
|
||
* MIPS and Alpha architectures (or any other architecture which requires
|
||
* a flushing of memory or write buffers and/or has incoherent caches)
|
||
* have yet to be made.
|
||
*/
|
||
|
||
#include "pdqreg.h"
|
||
#include "pdq_os.h"
|
||
|
||
#define PDQ_ROUNDUP(n, x) (((n) + ((x) - 1)) & ~((x) - 1))
|
||
#define PDQ_CMD_RX_ALIGNMENT 16
|
||
|
||
#if defined(PDQTEST) && !defined(PDQ_NOPRINTF)
|
||
#define PDQ_PRINTF(x) printf x
|
||
#else
|
||
#define PDQ_PRINTF(x)
|
||
#endif
|
||
|
||
const char * const pdq_halt_codes[] = {
|
||
"Selftest Timeout", "Host Bus Parity Error", "Host Directed Fault",
|
||
"Software Fault", "Hardware Fault", "PC Trace Path Test",
|
||
"DMA Error", "Image CRC Error", "Adapter Processer Error"
|
||
};
|
||
|
||
const char * const pdq_adapter_states[] = {
|
||
"Reset", "Upgrade", "DMA Unavailable", "DMA Available",
|
||
"Link Available", "Link Unavailable", "Halted", "Ring Member"
|
||
};
|
||
|
||
/*
|
||
* The following are used in conjunction with
|
||
* unsolicited events
|
||
*/
|
||
const char * const pdq_entities[] = {
|
||
"Station", "Link", "Phy Port"
|
||
};
|
||
|
||
const char * const pdq_station_events[] = {
|
||
"Trace Received"
|
||
};
|
||
|
||
const char * const pdq_station_arguments[] = {
|
||
"Reason"
|
||
};
|
||
|
||
const char * const pdq_link_events[] = {
|
||
"Transmit Underrun",
|
||
"Transmit Failed",
|
||
"Block Check Error (CRC)",
|
||
"Frame Status Error",
|
||
"PDU Length Error",
|
||
NULL,
|
||
NULL,
|
||
"Receive Data Overrun",
|
||
NULL,
|
||
"No User Buffer",
|
||
"Ring Initialization Initiated",
|
||
"Ring Initialization Received",
|
||
"Ring Beacon Initiated",
|
||
"Duplicate Address Failure",
|
||
"Duplicate Token Detected",
|
||
"Ring Purger Error",
|
||
"FCI Strip Error",
|
||
"Trace Initiated",
|
||
"Directed Beacon Received",
|
||
};
|
||
|
||
const char * const pdq_link_arguments[] = {
|
||
"Reason",
|
||
"Data Link Header",
|
||
"Source",
|
||
"Upstream Neighbor"
|
||
};
|
||
|
||
const char * const pdq_phy_events[] = {
|
||
"LEM Error Monitor Reject",
|
||
"Elasticy Buffer Error",
|
||
"Link Confidence Test Reject"
|
||
};
|
||
|
||
const char * const pdq_phy_arguments[] = {
|
||
"Direction"
|
||
};
|
||
|
||
const char * const * const pdq_event_arguments[] = {
|
||
pdq_station_arguments,
|
||
pdq_link_arguments,
|
||
pdq_phy_arguments
|
||
};
|
||
|
||
const char * const * const pdq_event_codes[] = {
|
||
pdq_station_events,
|
||
pdq_link_events,
|
||
pdq_phy_events
|
||
};
|
||
|
||
const char * const pdq_station_types[] = {
|
||
"SAS", "DAC", "SAC", "NAC", "DAS"
|
||
};
|
||
|
||
const char * const pdq_smt_versions[] = { "", "V6.2", "V7.2" };
|
||
|
||
const char pdq_phy_types[] = "ABSM";
|
||
|
||
const char * const pdq_pmd_types0[] = {
|
||
"ANSI Multi-Mode", "ANSI Single-Mode Type 1", "ANSI Single-Mode Type 2",
|
||
"ANSI Sonet"
|
||
};
|
||
|
||
const char * const pdq_pmd_types100[] = {
|
||
"Low Power", "Thin Wire", "Shielded Twisted Pair",
|
||
"Unshielded Twisted Pair"
|
||
};
|
||
|
||
const char * const * const pdq_pmd_types[] = {
|
||
pdq_pmd_types0, pdq_pmd_types100
|
||
};
|
||
|
||
const char * const pdq_descriptions[] = {
|
||
"DEFPA PCI",
|
||
"DEFEA EISA",
|
||
};
|
||
|
||
extern printf (), bzero(), DELAY();
|
||
|
||
void
|
||
pdq_print_fddi_chars(
|
||
pdq_t *pdq,
|
||
const pdq_response_status_chars_get_t *rsp)
|
||
{
|
||
const char hexchars[] = "0123456789abcdef";
|
||
|
||
printf(PDQ_OS_PREFIX "DEC %s FDDI %s Controller\n",
|
||
PDQ_OS_PREFIX_ARGS, pdq_descriptions[pdq->pdq_type],
|
||
pdq_station_types[rsp->status_chars_get.station_type]);
|
||
|
||
printf(PDQ_OS_PREFIX "FDDI address %c%c:%c%c:%c%c:%c%c:%c%c:%c%c, FW=%c%c%c%c, HW=%c",
|
||
PDQ_OS_PREFIX_ARGS,
|
||
hexchars[pdq->pdq_hwaddr.lanaddr_bytes[0] >> 4],
|
||
hexchars[pdq->pdq_hwaddr.lanaddr_bytes[0] & 0x0F],
|
||
hexchars[pdq->pdq_hwaddr.lanaddr_bytes[1] >> 4],
|
||
hexchars[pdq->pdq_hwaddr.lanaddr_bytes[1] & 0x0F],
|
||
hexchars[pdq->pdq_hwaddr.lanaddr_bytes[2] >> 4],
|
||
hexchars[pdq->pdq_hwaddr.lanaddr_bytes[2] & 0x0F],
|
||
hexchars[pdq->pdq_hwaddr.lanaddr_bytes[3] >> 4],
|
||
hexchars[pdq->pdq_hwaddr.lanaddr_bytes[3] & 0x0F],
|
||
hexchars[pdq->pdq_hwaddr.lanaddr_bytes[4] >> 4],
|
||
hexchars[pdq->pdq_hwaddr.lanaddr_bytes[4] & 0x0F],
|
||
hexchars[pdq->pdq_hwaddr.lanaddr_bytes[5] >> 4],
|
||
hexchars[pdq->pdq_hwaddr.lanaddr_bytes[5] & 0x0F],
|
||
pdq->pdq_fwrev.fwrev_bytes[0], pdq->pdq_fwrev.fwrev_bytes[1],
|
||
pdq->pdq_fwrev.fwrev_bytes[2], pdq->pdq_fwrev.fwrev_bytes[3],
|
||
rsp->status_chars_get.module_rev.fwrev_bytes[0]);
|
||
|
||
if (rsp->status_chars_get.smt_version_id < PDQ_ARRAY_SIZE(pdq_smt_versions)) {
|
||
printf(", SMT %s\n", pdq_smt_versions[rsp->status_chars_get.smt_version_id]);
|
||
}
|
||
|
||
printf(PDQ_OS_PREFIX "FDDI Port%s = %c (PMD = %s)",
|
||
PDQ_OS_PREFIX_ARGS,
|
||
rsp->status_chars_get.station_type == PDQ_STATION_TYPE_DAS ? "[A]" : "",
|
||
pdq_phy_types[rsp->status_chars_get.phy_type[0]],
|
||
pdq_pmd_types[rsp->status_chars_get.pmd_type[0] / 100][rsp->status_chars_get.pmd_type[0] % 100]);
|
||
|
||
if (rsp->status_chars_get.station_type == PDQ_STATION_TYPE_DAS)
|
||
printf(", FDDI Port[B] = %c (PMD = %s)",
|
||
pdq_phy_types[rsp->status_chars_get.phy_type[1]],
|
||
pdq_pmd_types[rsp->status_chars_get.pmd_type[1] / 100][rsp->status_chars_get.pmd_type[1] % 100]);
|
||
|
||
printf("\n");
|
||
}
|
||
|
||
void
|
||
pdq_init_csrs(
|
||
pdq_csrs_t *csrs,
|
||
void *csr_va,
|
||
size_t csrsize)
|
||
{
|
||
volatile pdq_uint32_t *csr_base = (volatile pdq_uint32_t *) csr_va;
|
||
|
||
csrs->csr_port_reset = &csr_base[0 * csrsize];
|
||
csrs->csr_host_data = &csr_base[1 * csrsize];
|
||
csrs->csr_port_control = &csr_base[2 * csrsize];
|
||
csrs->csr_port_data_a = &csr_base[3 * csrsize];
|
||
csrs->csr_port_data_b = &csr_base[4 * csrsize];
|
||
csrs->csr_port_status = &csr_base[5 * csrsize];
|
||
csrs->csr_host_int_type_0 = &csr_base[6 * csrsize];
|
||
csrs->csr_host_int_enable = &csr_base[7 * csrsize];
|
||
csrs->csr_type_2_producer = &csr_base[8 * csrsize];
|
||
csrs->csr_cmd_response_producer = &csr_base[10 * csrsize];
|
||
csrs->csr_cmd_request_producer = &csr_base[11 * csrsize];
|
||
csrs->csr_host_smt_producer = &csr_base[12 * csrsize];
|
||
csrs->csr_unsolicited_producer = &csr_base[13 * csrsize];
|
||
}
|
||
|
||
void
|
||
pdq_init_pci_csrs(
|
||
pdq_pci_csrs_t *csrs,
|
||
void *csr_va,
|
||
size_t csrsize)
|
||
{
|
||
volatile pdq_uint32_t *csr_base = (volatile pdq_uint32_t *) csr_va;
|
||
|
||
csrs->csr_pfi_mode_control = &csr_base[16 * csrsize];
|
||
csrs->csr_pfi_status = &csr_base[17 * csrsize];
|
||
csrs->csr_fifo_write = &csr_base[18 * csrsize];
|
||
csrs->csr_fifo_read = &csr_base[19 * csrsize];
|
||
}
|
||
|
||
void
|
||
pdq_flush_databuf_queue(
|
||
pdq_databuf_queue_t *q)
|
||
{
|
||
PDQ_OS_DATABUF_T *pdu;
|
||
for (;;) {
|
||
PDQ_OS_DATABUF_DEQUEUE(q, pdu);
|
||
if (pdu == NULL)
|
||
return;
|
||
PDQ_OS_DATABUF_FREE(pdu);
|
||
}
|
||
}
|
||
|
||
pdq_boolean_t
|
||
pdq_do_port_control(
|
||
const pdq_csrs_t * const csrs,
|
||
pdq_uint32_t cmd)
|
||
{
|
||
int cnt = 0;
|
||
*csrs->csr_host_int_type_0 = PDQ_HOST_INT_CSR_CMD_DONE;
|
||
*csrs->csr_port_control = PDQ_PCTL_CMD_ERROR | cmd;
|
||
while ((*csrs->csr_host_int_type_0 & PDQ_HOST_INT_CSR_CMD_DONE) == 0 && cnt < 33000000)
|
||
cnt++;
|
||
PDQ_PRINTF(("CSR cmd spun %d times\n", cnt));
|
||
if (*csrs->csr_host_int_type_0 & PDQ_HOST_INT_CSR_CMD_DONE) {
|
||
*csrs->csr_host_int_type_0 = PDQ_HOST_INT_CSR_CMD_DONE;
|
||
return (*csrs->csr_port_control & PDQ_PCTL_CMD_ERROR) ? PDQ_FALSE : PDQ_TRUE;
|
||
}
|
||
/* adapter failure */
|
||
PDQ_ASSERT(0);
|
||
return PDQ_FALSE;
|
||
}
|
||
|
||
void
|
||
pdq_read_mla(
|
||
const pdq_csrs_t * const csrs,
|
||
pdq_lanaddr_t *hwaddr)
|
||
{
|
||
pdq_uint32_t data;
|
||
|
||
*csrs->csr_port_data_a = 0;
|
||
pdq_do_port_control(csrs, PDQ_PCTL_MLA_READ);
|
||
data = *csrs->csr_host_data;
|
||
|
||
hwaddr->lanaddr_bytes[0] = (data >> 0) & 0xFF;
|
||
hwaddr->lanaddr_bytes[1] = (data >> 8) & 0xFF;
|
||
hwaddr->lanaddr_bytes[2] = (data >> 16) & 0xFF;
|
||
hwaddr->lanaddr_bytes[3] = (data >> 24) & 0xFF;
|
||
|
||
*csrs->csr_port_data_a = 1;
|
||
pdq_do_port_control(csrs, PDQ_PCTL_MLA_READ);
|
||
data = *csrs->csr_host_data;
|
||
|
||
hwaddr->lanaddr_bytes[4] = (data >> 0) & 0xFF;
|
||
hwaddr->lanaddr_bytes[5] = (data >> 8) & 0xFF;
|
||
}
|
||
|
||
void
|
||
pdq_read_fwrev(
|
||
const pdq_csrs_t * const csrs,
|
||
pdq_fwrev_t *fwrev)
|
||
{
|
||
pdq_uint32_t data;
|
||
|
||
pdq_do_port_control(csrs, PDQ_PCTL_FW_REV_READ);
|
||
data = *csrs->csr_host_data;
|
||
|
||
fwrev->fwrev_bytes[3] = (data >> 0) & 0xFF;
|
||
fwrev->fwrev_bytes[2] = (data >> 8) & 0xFF;
|
||
fwrev->fwrev_bytes[1] = (data >> 16) & 0xFF;
|
||
fwrev->fwrev_bytes[0] = (data >> 24) & 0xFF;
|
||
}
|
||
|
||
pdq_boolean_t
|
||
pdq_read_error_log(
|
||
pdq_t *pdq,
|
||
pdq_response_error_log_get_t *log_entry)
|
||
{
|
||
const pdq_csrs_t * const csrs = &pdq->pdq_csrs;
|
||
pdq_uint32_t *ptr = (pdq_uint32_t *) log_entry;
|
||
|
||
pdq_do_port_control(csrs, PDQ_PCTL_ERROR_LOG_START);
|
||
|
||
while (pdq_do_port_control(csrs, PDQ_PCTL_FW_REV_READ) == PDQ_TRUE) {
|
||
*ptr++ = *csrs->csr_host_data;
|
||
if ((pdq_uint8_t *) ptr - (pdq_uint8_t *) log_entry == sizeof(*log_entry))
|
||
break;
|
||
}
|
||
return (ptr == (pdq_uint32_t *) log_entry) ? PDQ_FALSE : PDQ_TRUE;
|
||
}
|
||
|
||
pdq_chip_rev_t
|
||
pdq_read_chiprev(
|
||
const pdq_csrs_t * const csrs)
|
||
{
|
||
pdq_uint32_t data;
|
||
|
||
*csrs->csr_port_data_a = PDQ_SUB_CMD_PDQ_REV_GET;
|
||
pdq_do_port_control(csrs, PDQ_PCTL_SUB_CMD);
|
||
data = *csrs->csr_host_data;
|
||
|
||
return (pdq_chip_rev_t) data;
|
||
}
|
||
|
||
static const struct {
|
||
size_t cmd_len;
|
||
size_t rsp_len;
|
||
const char *cmd_name;
|
||
} pdq_cmd_info[] = {
|
||
{ sizeof(pdq_cmd_generic_t), /* 0 - PDQC_START */
|
||
sizeof(pdq_response_generic_t),
|
||
"Start"
|
||
},
|
||
{ sizeof(pdq_cmd_filter_set_t), /* 1 - PDQC_FILTER_SET */
|
||
sizeof(pdq_response_generic_t),
|
||
"Filter Set"
|
||
},
|
||
{ sizeof(pdq_cmd_generic_t), /* 2 - PDQC_FILTER_GET */
|
||
sizeof(pdq_response_filter_get_t),
|
||
"Filter Get"
|
||
},
|
||
{ sizeof(pdq_cmd_chars_set_t), /* 3 - PDQC_CHARS_SET */
|
||
sizeof(pdq_response_generic_t),
|
||
"Chars Set"
|
||
},
|
||
{ sizeof(pdq_cmd_generic_t), /* 4 - PDQC_STATUS_CHARS_GET */
|
||
sizeof(pdq_response_status_chars_get_t),
|
||
"Status Chars Get"
|
||
},
|
||
#if 0
|
||
{ sizeof(pdq_cmd_generic_t), /* 5 - PDQC_COUNTERS_GET */
|
||
sizeof(pdq_response_counters_get_t),
|
||
"Counters Get"
|
||
},
|
||
{ sizeof(pdq_cmd_counters_set_t), /* 6 - PDQC_COUNTERS_SET */
|
||
sizeof(pdq_response_generic_t),
|
||
"Counters Set"
|
||
},
|
||
#else
|
||
{ 0, 0, "Counters Get" },
|
||
{ 0, 0, "Counters Set" },
|
||
#endif
|
||
{ sizeof(pdq_cmd_addr_filter_set_t), /* 7 - PDQC_ADDR_FILTER_SET */
|
||
sizeof(pdq_response_generic_t),
|
||
"Addr Filter Set"
|
||
},
|
||
{ sizeof(pdq_cmd_generic_t), /* 8 - PDQC_ADDR_FILTER_GET */
|
||
sizeof(pdq_response_addr_filter_get_t),
|
||
"Addr Filter Get"
|
||
},
|
||
#if 0
|
||
{ sizeof(pdq_cmd_generic_t), /* 9 - PDQC_ERROR_LOG_CLEAR */
|
||
sizeof(pdq_response_generic_t),
|
||
"Error Log Clear"
|
||
},
|
||
{ sizeof(pdq_cmd_generic_t), /* 10 - PDQC_ERROR_LOG_SET */
|
||
sizeof(pdq_response_generic_t),
|
||
"Error Log Set"
|
||
},
|
||
{ sizeof(pdq_cmd_generic_t), /* 11 - PDQC_FDDI_MIB_GET */
|
||
sizeof(pdq_response_generic_t),
|
||
"FDDI MIB Get"
|
||
},
|
||
{ sizeof(pdq_cmd_generic_t), /* 12 - PDQC_DEC_EXT_MIB_GET */
|
||
sizeof(pdq_response_generic_t),
|
||
"DEC Ext MIB Get"
|
||
},
|
||
{ sizeof(pdq_cmd_generic_t), /* 13 - PDQC_DEC_SPECIFIC_GET */
|
||
sizeof(pdq_response_generic_t),
|
||
"DEC Specific Get"
|
||
},
|
||
{ sizeof(pdq_cmd_generic_t), /* 14 - PDQC_SNMP_SET */
|
||
sizeof(pdq_response_generic_t),
|
||
"SNMP Set"
|
||
},
|
||
{ 0, 0, "N/A" },
|
||
{ sizeof(pdq_cmd_generic_t), /* 16 - PDQC_SMT_MIB_GET */
|
||
sizeof(pdq_response_generic_t),
|
||
"SMT MIB Get"
|
||
},
|
||
{ sizeof(pdq_cmd_generic_t), /* 17 - PDQC_SMT_MIB_SET */
|
||
sizeof(pdq_response_generic_t),
|
||
"SMT MIB Set",
|
||
},
|
||
#endif
|
||
};
|
||
|
||
void
|
||
pdq_queue_commands(
|
||
pdq_t *pdq)
|
||
{
|
||
const pdq_csrs_t * const csrs = &pdq->pdq_csrs;
|
||
pdq_command_info_t *ci = &pdq->pdq_command_info;
|
||
pdq_descriptor_block_t *dbp = pdq->pdq_dbp;
|
||
pdq_txdesc_t *txd;
|
||
pdq_rxdesc_t *rxd;
|
||
pdq_cmd_code_t op;
|
||
pdq_uint32_t cmdlen, rsplen;
|
||
pdq_uint8_t *bufptr;
|
||
unsigned cmds;
|
||
|
||
for (cmds = 0; ci->ci_pending_commands != 0; cmds++) {
|
||
pdq_uint32_t mask;
|
||
/*
|
||
* If there is no free space in the queues, stop queuing
|
||
* commands.
|
||
*/
|
||
if (ci->ci_request_free == 0 || ci->ci_response_free == 0)
|
||
break;
|
||
/*
|
||
* If there are no commands nor responses pending, then reset
|
||
* the command/response buffer back to the start.
|
||
*/
|
||
if (ci->ci_request_free == ci->ci_request_max
|
||
&& ci->ci_response_free == ci->ci_response_max) {
|
||
ci->ci_bufptr = ci->ci_bufstart;
|
||
ci->ci_buffree = sizeof(pdq->pdq_dbp->pdqdb_command_pool);
|
||
}
|
||
/*
|
||
* Determine which commands need to be queued.
|
||
*/
|
||
op = PDQC_SMT_MIB_SET;
|
||
for (mask = 1 << ((int) op); (mask & ci->ci_pending_commands) == 0; mask >>= 1)
|
||
op = (pdq_cmd_code_t) ((int) op - 1);
|
||
/*
|
||
* Obtain the sizes needed for the command and response.
|
||
* Round up to PDQ_CMD_RX_ALIGNMENT so the receive buffer is
|
||
* always properly aligned.
|
||
*/
|
||
cmdlen = PDQ_ROUNDUP(pdq_cmd_info[op].cmd_len, PDQ_CMD_RX_ALIGNMENT);
|
||
rsplen = PDQ_ROUNDUP(pdq_cmd_info[op].rsp_len, PDQ_CMD_RX_ALIGNMENT);
|
||
if (cmdlen < rsplen)
|
||
cmdlen = rsplen;
|
||
/*
|
||
* If there's not enough space or if there isn't enough continguous
|
||
* space, then wait for some to be freed.
|
||
*/
|
||
if (cmdlen > ci->ci_buffree)
|
||
break;
|
||
if (cmdlen > ci->ci_bufend - ci->ci_bufptr)
|
||
break;
|
||
|
||
/*
|
||
* Allocate the space for the command and the repsonse.
|
||
*/
|
||
bufptr = ci->ci_bufptr;
|
||
ci->ci_bufptr += cmdlen;
|
||
ci->ci_buffree -= cmdlen;
|
||
if (ci->ci_bufptr == ci->ci_bufend)
|
||
ci->ci_bufptr = ci->ci_bufstart;
|
||
|
||
/*
|
||
* Obtain and fill in the descriptor for the command
|
||
*/
|
||
txd = &dbp->pdqdb_command_requests[ci->ci_request_producer];
|
||
PDQ_ADVANCE(ci->ci_request_producer, 1, PDQ_RING_MASK(dbp->pdqdb_command_requests));
|
||
ci->ci_request_free--;
|
||
|
||
txd->txd_pa_lo = ci->ci_pa_bufstart + (bufptr - ci->ci_bufstart);
|
||
txd->txd_eop = txd->txd_sop = 1;
|
||
txd->txd_seg_len = cmdlen;
|
||
txd->txd_pa_hi = 0;
|
||
|
||
/*
|
||
* Obtain and fill in the descriptor for the response
|
||
*/
|
||
rxd = &dbp->pdqdb_command_responses[ci->ci_response_producer];
|
||
PDQ_ADVANCE(ci->ci_response_producer, 1, PDQ_RING_MASK(dbp->pdqdb_command_responses));
|
||
ci->ci_response_free--;
|
||
|
||
rxd->rxd_pa_lo = ci->ci_pa_bufstart + (bufptr - ci->ci_bufstart);
|
||
rxd->rxd_sop = 1;
|
||
rxd->rxd_seg_cnt = 0;
|
||
rxd->rxd_seg_len_lo = 0;
|
||
rxd->rxd_seg_len_hi = cmdlen / 16;
|
||
rxd->rxd_pa_hi = 0;
|
||
|
||
/*
|
||
* Clear the command area, set the opcode, and the command from the pending
|
||
* mask.
|
||
*/
|
||
|
||
PDQ_OS_MEMZERO(bufptr, cmdlen);
|
||
*(pdq_cmd_code_t *) bufptr = op;
|
||
ci->ci_pending_commands &= ~mask;
|
||
|
||
/*
|
||
* Fill in the command area, if needed.
|
||
*/
|
||
switch (op) {
|
||
case PDQC_FILTER_SET: {
|
||
pdq_cmd_filter_set_t *filter_set = (pdq_cmd_filter_set_t *) bufptr;
|
||
unsigned idx = 0;
|
||
filter_set->filter_set_items[idx].item_code = PDQI_IND_GROUP_PROM;
|
||
filter_set->filter_set_items[idx].filter_state = (pdq->pdq_flags & PDQ_PROMISC ? PDQ_FILTER_PASS : PDQ_FILTER_BLOCK);
|
||
idx++;
|
||
filter_set->filter_set_items[idx].item_code = PDQI_GROUP_PROM;
|
||
filter_set->filter_set_items[idx].filter_state = (pdq->pdq_flags & PDQ_ALLMULTI ? PDQ_FILTER_PASS : PDQ_FILTER_BLOCK);
|
||
idx++;
|
||
filter_set->filter_set_items[idx].item_code = PDQI_SMT_PROM;
|
||
filter_set->filter_set_items[idx].filter_state = ((pdq->pdq_flags & (PDQ_PROMISC|PDQ_PASS_SMT)) == (PDQ_PROMISC|PDQ_PASS_SMT) ? PDQ_FILTER_PASS : PDQ_FILTER_BLOCK);
|
||
idx++;
|
||
filter_set->filter_set_items[idx].item_code = PDQI_SMT_USER;
|
||
filter_set->filter_set_items[idx].filter_state = (pdq->pdq_flags & PDQ_PASS_SMT ? PDQ_FILTER_PASS : PDQ_FILTER_BLOCK);
|
||
idx++;
|
||
filter_set->filter_set_items[idx].item_code = PDQI_EOL;
|
||
break;
|
||
}
|
||
case PDQC_ADDR_FILTER_SET: {
|
||
pdq_cmd_addr_filter_set_t *addr_filter_set = (pdq_cmd_addr_filter_set_t *) bufptr;
|
||
pdq_lanaddr_t *addr = addr_filter_set->addr_filter_set_addresses;
|
||
addr->lanaddr_bytes[0] = 0xFF;
|
||
addr->lanaddr_bytes[1] = 0xFF;
|
||
addr->lanaddr_bytes[2] = 0xFF;
|
||
addr->lanaddr_bytes[3] = 0xFF;
|
||
addr->lanaddr_bytes[4] = 0xFF;
|
||
addr->lanaddr_bytes[5] = 0xFF;
|
||
addr++;
|
||
pdq_os_addr_fill(pdq, addr, 61);
|
||
break;
|
||
}
|
||
default:
|
||
break;
|
||
}
|
||
/*
|
||
* At this point the command is done. All that needs to be done is to
|
||
* produce it to the PDQ. That will be done after the loop exits.
|
||
*/
|
||
PDQ_PRINTF(("PDQ Queue Command Request: %s queued\n",
|
||
pdq_cmd_info[op].cmd_name));
|
||
}
|
||
if (cmds > 0) {
|
||
*csrs->csr_cmd_response_producer = ci->ci_response_producer | (ci->ci_response_completion << 8);
|
||
*csrs->csr_cmd_request_producer = ci->ci_request_producer | (ci->ci_request_completion << 8);
|
||
}
|
||
}
|
||
|
||
void
|
||
pdq_process_command_responses(
|
||
pdq_t *pdq)
|
||
{
|
||
const pdq_csrs_t * const csrs = &pdq->pdq_csrs;
|
||
pdq_command_info_t *ci = &pdq->pdq_command_info;
|
||
volatile const pdq_consumer_block_t *cbp = pdq->pdq_cbp;
|
||
pdq_descriptor_block_t *dbp = pdq->pdq_dbp;
|
||
pdq_txdesc_t *txd;
|
||
pdq_rxdesc_t *rxd;
|
||
const pdq_response_generic_t *rspgen;
|
||
unsigned cmds;
|
||
|
||
/*
|
||
* We have to process the command and response in tandem so
|
||
* just wait for the response to be consumed. If it has been
|
||
* consumed then the command must have been as well.
|
||
*/
|
||
|
||
for (cmds = 0; cbp->pdqcb_command_response != ci->ci_response_completion; cmds = 1) {
|
||
PDQ_ASSERT (cbp->pdqcb_command_request != ci->ci_request_completion);
|
||
|
||
txd = &dbp->pdqdb_command_requests[ci->ci_request_completion];
|
||
rxd = &dbp->pdqdb_command_responses[ci->ci_response_completion];
|
||
|
||
rspgen = (const pdq_response_generic_t *) (ci->ci_bufstart + rxd->rxd_pa_lo - ci->ci_pa_bufstart);
|
||
PDQ_ASSERT(rspgen->generic_status == PDQR_SUCCESS);
|
||
PDQ_PRINTF(("PDQ Process Command Response: %s completed\n",
|
||
pdq_cmd_info[rspgen->generic_op].cmd_name));
|
||
|
||
if (rspgen->generic_op == PDQC_STATUS_CHARS_GET && (pdq->pdq_flags & PDQ_PRINTCHARS)) {
|
||
pdq->pdq_flags &= ~PDQ_PRINTCHARS;
|
||
pdq_print_fddi_chars(pdq, (const pdq_response_status_chars_get_t *) rspgen);
|
||
}
|
||
|
||
PDQ_ADVANCE(ci->ci_request_completion, 1, PDQ_RING_MASK(dbp->pdqdb_command_requests));
|
||
PDQ_ADVANCE(ci->ci_response_completion, 1, PDQ_RING_MASK(dbp->pdqdb_command_responses));
|
||
ci->ci_response_free++;
|
||
ci->ci_request_free++;
|
||
ci->ci_buffree += txd->txd_seg_len;
|
||
}
|
||
|
||
if (cmds > 0) {
|
||
*csrs->csr_cmd_response_producer = ci->ci_response_producer | (ci->ci_response_completion << 8);
|
||
*csrs->csr_cmd_request_producer = ci->ci_request_producer | (ci->ci_request_completion << 8);
|
||
if (ci->ci_pending_commands != 0)
|
||
pdq_queue_commands(pdq);
|
||
}
|
||
}
|
||
|
||
/*
|
||
* This following routine processes unsolicited events.
|
||
* In addition, it also fills the unsolicited queue with
|
||
* event buffers so it can be used to initialize the queue
|
||
* as well.
|
||
*/
|
||
void
|
||
pdq_process_unsolicited_events(
|
||
pdq_t *pdq)
|
||
{
|
||
const pdq_csrs_t * const csrs = &pdq->pdq_csrs;
|
||
pdq_unsolicited_info_t *ui = &pdq->pdq_unsolicited_info;
|
||
volatile const pdq_consumer_block_t *cbp = pdq->pdq_cbp;
|
||
pdq_descriptor_block_t *dbp = pdq->pdq_dbp;
|
||
const pdq_unsolicited_event_t *event;
|
||
pdq_rxdesc_t *rxd;
|
||
|
||
/*
|
||
* Process each unsolicited event (if any).
|
||
*/
|
||
|
||
while (cbp->pdqcb_unsolicited_event != ui->ui_completion) {
|
||
rxd = &dbp->pdqdb_unsolicited_events[ui->ui_completion];
|
||
event = &ui->ui_events[ui->ui_completion & (PDQ_NUM_UNSOLICITED_EVENTS-1)];
|
||
|
||
switch (event->event_type) {
|
||
case PDQ_UNSOLICITED_EVENT: {
|
||
printf(PDQ_OS_PREFIX "Unsolicited Event: %s: %s",
|
||
PDQ_OS_PREFIX_ARGS,
|
||
pdq_entities[event->event_entity],
|
||
pdq_event_codes[event->event_entity][event->event_code.value]);
|
||
if (event->event_type == PDQ_ENTITY_PHY_PORT)
|
||
printf("[%d]", event->event_index);
|
||
printf("\n");
|
||
break;
|
||
}
|
||
case PDQ_UNSOLICITED_COUNTERS: {
|
||
break;
|
||
}
|
||
}
|
||
PDQ_ADVANCE(ui->ui_completion, 1, PDQ_RING_MASK(dbp->pdqdb_unsolicited_events));
|
||
ui->ui_free++;
|
||
}
|
||
|
||
/*
|
||
* Now give back the event buffers back to the PDQ.
|
||
*/
|
||
PDQ_ADVANCE(ui->ui_producer, ui->ui_free, PDQ_RING_MASK(dbp->pdqdb_unsolicited_events));
|
||
ui->ui_free = 0;
|
||
|
||
*csrs->csr_unsolicited_producer = ui->ui_producer | (ui->ui_completion << 8);
|
||
}
|
||
|
||
void
|
||
pdq_process_received_data(
|
||
pdq_t *pdq,
|
||
pdq_rx_info_t *rx,
|
||
pdq_rxdesc_t *receives,
|
||
pdq_uint32_t completion_goal,
|
||
pdq_uint32_t ring_mask)
|
||
{
|
||
pdq_uint32_t completion = rx->rx_completion;
|
||
PDQ_OS_DATABUF_T **buffers = (PDQ_OS_DATABUF_T **) rx->rx_buffers;
|
||
pdq_rxdesc_t *rxd;
|
||
pdq_uint32_t idx;
|
||
|
||
while (completion != completion_goal) {
|
||
PDQ_OS_DATABUF_T *fpdu, *lpdu, *npdu;
|
||
pdq_uint8_t *dataptr;
|
||
pdq_uint32_t fc, datalen, pdulen, segcnt;
|
||
pdq_rxstatus_t status;
|
||
|
||
fpdu = lpdu = buffers[completion];
|
||
PDQ_ASSERT(fpdu != NULL);
|
||
|
||
dataptr = PDQ_OS_DATABUF_PTR(fpdu);
|
||
status = *(pdq_rxstatus_t *) dataptr;
|
||
if ((status.rxs_status & 0x200000) == 0) {
|
||
datalen = status.rxs_status & 0x1FFF;
|
||
fc = dataptr[PDQ_RX_FC_OFFSET];
|
||
switch (fc & (PDQ_FDDIFC_C|PDQ_FDDIFC_L|PDQ_FDDIFC_F)) {
|
||
case PDQ_FDDI_LLC_ASYNC:
|
||
case PDQ_FDDI_LLC_SYNC:
|
||
case PDQ_FDDI_IMP_ASYNC:
|
||
case PDQ_FDDI_IMP_SYNC: {
|
||
if (datalen > PDQ_FDDI_MAX || datalen < PDQ_FDDI_LLC_MIN) {
|
||
printf("discard: bad length %d\n", datalen);
|
||
goto discard_frame;
|
||
}
|
||
break;
|
||
}
|
||
case PDQ_FDDI_SMT: {
|
||
if (datalen > PDQ_FDDI_MAX || datalen < PDQ_FDDI_SMT_MIN)
|
||
goto discard_frame;
|
||
break;
|
||
}
|
||
default: {
|
||
printf("discard: bad fc 0x%x\n", fc);
|
||
goto discard_frame;
|
||
}
|
||
}
|
||
/*
|
||
* Update the lengths of the data buffers now that we know
|
||
* the real length.
|
||
*/
|
||
pdulen = datalen - 4 /* CRC */ + 1 /* FC */;
|
||
segcnt = (pdulen + PDQ_RX_FC_OFFSET + PDQ_OS_DATABUF_SIZE - 1) / PDQ_OS_DATABUF_SIZE;
|
||
PDQ_OS_DATABUF_ALLOC(npdu);
|
||
if (npdu == NULL) {
|
||
printf("discard: no databuf #0\n");
|
||
goto discard_frame;
|
||
}
|
||
buffers[completion] = npdu;
|
||
for (idx = 1; idx < segcnt; idx++) {
|
||
PDQ_OS_DATABUF_ALLOC(npdu);
|
||
if (npdu == NULL) {
|
||
PDQ_OS_DATABUF_NEXT_SET(lpdu, NULL);
|
||
PDQ_OS_DATABUF_FREE(fpdu);
|
||
goto discard_frame;
|
||
}
|
||
PDQ_OS_DATABUF_NEXT_SET(lpdu, buffers[(completion + idx) & ring_mask]);
|
||
lpdu = PDQ_OS_DATABUF_NEXT(lpdu);
|
||
buffers[(completion + idx) & ring_mask] = npdu;
|
||
}
|
||
PDQ_OS_DATABUF_NEXT_SET(lpdu, NULL);
|
||
for (idx = 0; idx < PDQ_RX_SEGCNT; idx++) {
|
||
buffers[(rx->rx_producer + idx) & ring_mask] =
|
||
buffers[(completion + idx) & ring_mask];
|
||
buffers[(completion + idx) & ring_mask] = NULL;
|
||
}
|
||
PDQ_OS_DATABUF_PTR_ADJ(fpdu, PDQ_RX_FC_OFFSET);
|
||
if (segcnt == 1) {
|
||
PDQ_OS_DATABUF_LEN_SET(fpdu, pdulen);
|
||
} else {
|
||
PDQ_OS_DATABUF_LEN_SET(lpdu, pdulen + PDQ_RX_FC_OFFSET - (segcnt - 1) * PDQ_OS_DATABUF_SIZE);
|
||
PDQ_OS_DATABUF_LEN_ADJ(fpdu, -PDQ_RX_FC_OFFSET);
|
||
}
|
||
pdq_os_receive_pdu(pdq, fpdu, pdulen);
|
||
rx->rx_free += PDQ_RX_SEGCNT;
|
||
PDQ_ADVANCE(completion, PDQ_RX_SEGCNT, ring_mask);
|
||
continue;
|
||
} else {
|
||
printf("discard: bad pdu 0x%x(%d.%d.%d.%d.%d)\n", status.rxs_status,
|
||
status.rxs_rcc_badpdu, status.rxs_rcc_badcrc,
|
||
status.rxs_rcc_reason, status.rxs_fsc, status.rxs_fsb_e);
|
||
if (status.rxs_rcc_reason == 7)
|
||
goto discard_frame;
|
||
if (status.rxs_rcc_reason != 0)
|
||
/* hardware fault */
|
||
if (status.rxs_rcc_badcrc) {
|
||
/* rx->rx_badcrc++; */
|
||
} else if (status.rxs_fsc == 0 | status.rxs_fsb_e == 1) {
|
||
/* rx->rx_frame_status_errors++; */
|
||
} else {
|
||
/* hardware fault */
|
||
}
|
||
}
|
||
discard_frame:
|
||
/*
|
||
* Discarded frames go right back on the queue; therefore
|
||
* ring entries were freed.
|
||
*/
|
||
for (idx = 0; idx < PDQ_RX_SEGCNT; idx++) {
|
||
buffers[rx->rx_producer] = buffers[completion];
|
||
buffers[completion] = NULL;
|
||
rxd = &receives[rx->rx_producer];
|
||
if (idx == 0) {
|
||
rxd->rxd_sop = 1; rxd->rxd_seg_cnt = PDQ_RX_SEGCNT - 1;
|
||
} else {
|
||
rxd->rxd_sop = 0; rxd->rxd_seg_cnt = 0;
|
||
}
|
||
rxd->rxd_pa_hi = 0;
|
||
rxd->rxd_seg_len_hi = PDQ_OS_DATABUF_SIZE / 16;
|
||
rxd->rxd_pa_lo = PDQ_OS_VA_TO_PA(PDQ_OS_DATABUF_PTR(buffers[rx->rx_producer]));
|
||
PDQ_ADVANCE(rx->rx_producer, 1, ring_mask);
|
||
PDQ_ADVANCE(completion, 1, ring_mask);
|
||
}
|
||
}
|
||
rx->rx_completion = completion;
|
||
|
||
while (rx->rx_free > PDQ_RX_SEGCNT && rx->rx_free > rx->rx_target) {
|
||
PDQ_OS_DATABUF_T *pdu;
|
||
/*
|
||
* Allocate the needed number of data buffers.
|
||
* Try to obtain them from our free queue before
|
||
* asking the system for more.
|
||
*/
|
||
for (idx = 0; idx < PDQ_RX_SEGCNT; idx++) {
|
||
if ((pdu = buffers[(rx->rx_producer + idx) & ring_mask]) == NULL) {
|
||
PDQ_OS_DATABUF_ALLOC(pdu);
|
||
if (pdu == NULL)
|
||
break;
|
||
buffers[(rx->rx_producer + idx) & ring_mask] = pdu;
|
||
}
|
||
rxd = &receives[(rx->rx_producer + idx) & ring_mask];
|
||
if (idx == 0) {
|
||
rxd->rxd_sop = 1; rxd->rxd_seg_cnt = PDQ_RX_SEGCNT - 1;
|
||
} else {
|
||
rxd->rxd_sop = 0; rxd->rxd_seg_cnt = 0;
|
||
}
|
||
rxd->rxd_pa_hi = 0;
|
||
rxd->rxd_seg_len_hi = PDQ_OS_DATABUF_SIZE / 16;
|
||
rxd->rxd_pa_lo = PDQ_OS_VA_TO_PA(PDQ_OS_DATABUF_PTR(pdu));
|
||
}
|
||
if (idx < PDQ_RX_SEGCNT) {
|
||
/*
|
||
* We didn't get all databufs required to complete a new
|
||
* receive buffer. Keep the ones we got and retry a bit
|
||
* later for the rest.
|
||
*/
|
||
break;
|
||
}
|
||
PDQ_ADVANCE(rx->rx_producer, PDQ_RX_SEGCNT, ring_mask);
|
||
rx->rx_free -= PDQ_RX_SEGCNT;
|
||
}
|
||
}
|
||
|
||
pdq_boolean_t
|
||
pdq_queue_transmit_data(
|
||
pdq_t *pdq,
|
||
PDQ_OS_DATABUF_T *pdu)
|
||
{
|
||
pdq_tx_info_t *tx = &pdq->pdq_tx_info;
|
||
pdq_descriptor_block_t *dbp = pdq->pdq_dbp;
|
||
pdq_uint32_t producer = tx->tx_producer;
|
||
pdq_txdesc_t *eop = NULL;
|
||
PDQ_OS_DATABUF_T *pdu0;
|
||
pdq_uint32_t freecnt;
|
||
|
||
dbp->pdqdb_transmits[producer] = tx->tx_hdrdesc;
|
||
PDQ_ADVANCE(producer, 1, PDQ_RING_MASK(dbp->pdqdb_transmits));
|
||
|
||
for (freecnt = tx->tx_free - 1, pdu0 = pdu; pdu0 != NULL && freecnt > 0;) {
|
||
pdq_uint32_t fraglen, datalen = PDQ_OS_DATABUF_LEN(pdu0);
|
||
const pdq_uint8_t *dataptr = PDQ_OS_DATABUF_PTR(pdu0);
|
||
|
||
/*
|
||
* The first segment is limited to the space remaining in
|
||
* page. All segments after that can be up to a full page
|
||
* in size.
|
||
*/
|
||
fraglen = PDQ_OS_PAGESIZE - ((dataptr - (pdq_uint8_t *) NULL) & (PDQ_OS_PAGESIZE-1));
|
||
while (datalen > 0 && freecnt > 0) {
|
||
pdq_uint32_t seglen = (fraglen < datalen ? fraglen : datalen);
|
||
|
||
/*
|
||
* Initialize the transmit descriptor
|
||
*/
|
||
eop = &dbp->pdqdb_transmits[producer];
|
||
eop->txd_seg_len = seglen;
|
||
eop->txd_pa_lo = PDQ_OS_VA_TO_PA(dataptr);
|
||
eop->txd_sop = eop->txd_eop = eop->txd_pa_hi = 0;
|
||
|
||
datalen -= seglen;
|
||
dataptr += seglen;
|
||
fraglen = PDQ_OS_PAGESIZE;
|
||
freecnt--;
|
||
PDQ_ADVANCE(producer, 1, PDQ_RING_MASK(dbp->pdqdb_transmits));
|
||
}
|
||
pdu0 = PDQ_OS_DATABUF_NEXT(pdu0);
|
||
}
|
||
if (pdu0 != NULL) {
|
||
PDQ_ASSERT(free == 0);
|
||
/*
|
||
* If we still have data to process then the ring was too full
|
||
* to store the PDU. Return FALSE so the caller will requeue
|
||
* the PDU for later.
|
||
*/
|
||
return PDQ_FALSE;
|
||
}
|
||
/*
|
||
* Everything went fine. Finish it up.
|
||
*/
|
||
tx->tx_descriptor_count[tx->tx_producer] = tx->tx_free - freecnt;
|
||
eop->txd_eop = 1;
|
||
PDQ_OS_DATABUF_ENQUEUE(&tx->tx_txq, pdu);
|
||
tx->tx_producer = producer;
|
||
tx->tx_free = freecnt;
|
||
PDQ_DO_TYPE2_PRODUCER(pdq);
|
||
return PDQ_TRUE;
|
||
}
|
||
|
||
void
|
||
pdq_process_transmitted_data(
|
||
pdq_t *pdq)
|
||
{
|
||
pdq_tx_info_t *tx = &pdq->pdq_tx_info;
|
||
volatile const pdq_consumer_block_t *cbp = pdq->pdq_cbp;
|
||
pdq_descriptor_block_t *dbp = pdq->pdq_dbp;
|
||
pdq_uint32_t completion = tx->tx_completion;
|
||
|
||
while (completion != cbp->pdqcb_transmits) {
|
||
PDQ_OS_DATABUF_T *pdu;
|
||
pdq_uint32_t descriptor_count = tx->tx_descriptor_count[completion];
|
||
PDQ_ASSERT(dbp->pdqdb_transmits[tx->tx_completion].txd_sop == 1);
|
||
PDQ_ASSERT(dbp->pdqdb_transmits[(completion + descriptor_count - 1) & PDQ_RING_MASK(dbp->pdqdb_transmits)].txd_eop == 1);
|
||
PDQ_OS_DATABUF_DEQUEUE(&tx->tx_txq, pdu);
|
||
pdq_os_transmit_done(pdq, pdu);
|
||
tx->tx_free += descriptor_count;
|
||
|
||
PDQ_ADVANCE(completion, descriptor_count, PDQ_RING_MASK(dbp->pdqdb_transmits));
|
||
}
|
||
if (tx->tx_completion != completion) {
|
||
tx->tx_completion = completion;
|
||
pdq_os_restart_transmitter(pdq);
|
||
}
|
||
PDQ_DO_TYPE2_PRODUCER(pdq);
|
||
}
|
||
|
||
void
|
||
pdq_flush_transmitter(
|
||
pdq_t *pdq)
|
||
{
|
||
volatile pdq_consumer_block_t *cbp = pdq->pdq_cbp;
|
||
pdq_tx_info_t *tx = &pdq->pdq_tx_info;
|
||
|
||
for (;;) {
|
||
PDQ_OS_DATABUF_T *pdu;
|
||
PDQ_OS_DATABUF_DEQUEUE(&tx->tx_txq, pdu);
|
||
if (pdu == NULL)
|
||
break;
|
||
/*
|
||
* Don't call transmit done since the packet never made it
|
||
* out on the wire.
|
||
*/
|
||
PDQ_OS_DATABUF_FREE(pdu);
|
||
}
|
||
|
||
tx->tx_free = PDQ_RING_MASK(pdq->pdq_dbp->pdqdb_transmits);
|
||
tx->tx_completion = cbp->pdqcb_transmits = tx->tx_producer;
|
||
|
||
PDQ_DO_TYPE2_PRODUCER(pdq);
|
||
}
|
||
|
||
/*
|
||
* The following routine brings the PDQ from whatever state it is
|
||
* in to DMA_UNAVAILABLE (ie. like a RESET but without doing a RESET).
|
||
*/
|
||
pdq_state_t
|
||
pdq_stop(
|
||
pdq_t *pdq)
|
||
{
|
||
pdq_state_t state;
|
||
const pdq_csrs_t * const csrs = &pdq->pdq_csrs;
|
||
int cnt, pass = 0, idx;
|
||
PDQ_OS_DATABUF_T **buffers;
|
||
|
||
restart:
|
||
state = PDQ_PSTS_ADAPTER_STATE(*csrs->csr_port_status);
|
||
if (state != PDQS_DMA_UNAVAILABLE) {
|
||
*csrs->csr_port_data_a = (state == PDQS_HALTED) ? 0 : PDQ_PRESET_SKIP_SELFTEST;
|
||
*csrs->csr_port_reset = 1;
|
||
PDQ_OS_USEC_DELAY(100);
|
||
*csrs->csr_port_reset = 0;
|
||
for (cnt = 45000;;cnt--) {
|
||
PDQ_OS_USEC_DELAY(1000);
|
||
state = PDQ_PSTS_ADAPTER_STATE(*csrs->csr_port_status);
|
||
if (state == PDQS_DMA_UNAVAILABLE || cnt == 0)
|
||
break;
|
||
}
|
||
PDQ_PRINTF(("PDQ Reset spun %d cycles\n", 45000 - cnt));
|
||
PDQ_OS_USEC_DELAY(10000);
|
||
state = PDQ_PSTS_ADAPTER_STATE(*csrs->csr_port_status);
|
||
PDQ_ASSERT(state == PDQS_DMA_UNAVAILABLE);
|
||
PDQ_ASSERT(cnt > 0);
|
||
}
|
||
#if 0
|
||
switch (state) {
|
||
case PDQS_RING_MEMBER:
|
||
case PDQS_LINK_UNAVAILABLE:
|
||
case PDQS_LINK_AVAILABLE: {
|
||
*csrs->csr_port_data_a = PDQ_SUB_CMD_LINK_UNINIT;
|
||
*csrs->csr_port_data_b = 0;
|
||
pdq_do_port_control(csrs, PDQ_PCTL_SUB_CMD);
|
||
state = PDQ_PSTS_ADAPTER_STATE(*csrs->csr_port_status);
|
||
PDQ_ASSERT(state == PDQS_DMA_AVAILABLE);
|
||
/* FALL THROUGH */
|
||
}
|
||
case PDQS_DMA_AVAILABLE: {
|
||
*csrs->csr_port_data_a = 0;
|
||
*csrs->csr_port_data_b = 0;
|
||
pdq_do_port_control(csrs, PDQ_PCTL_DMA_UNINIT);
|
||
state = PDQ_PSTS_ADAPTER_STATE(*csrs->csr_port_status);
|
||
PDQ_ASSERT(state == PDQS_DMA_UNAVAILABLE);
|
||
/* FALL THROUGH */
|
||
}
|
||
case PDQS_DMA_UNAVAILABLE: {
|
||
break;
|
||
}
|
||
}
|
||
#endif
|
||
/*
|
||
* Now we should be in DMA_UNAVAILABLE. So bring the PDQ into
|
||
* DMA_AVAILABLE.
|
||
*/
|
||
|
||
/*
|
||
* Obtain the hardware address and firmware revisions
|
||
* (MLA = my long address which is FDDI speak for hardware address)
|
||
*/
|
||
pdq_read_mla(&pdq->pdq_csrs, &pdq->pdq_hwaddr);
|
||
pdq_read_fwrev(&pdq->pdq_csrs, &pdq->pdq_fwrev);
|
||
pdq->pdq_chip_rev = pdq_read_chiprev(&pdq->pdq_csrs);
|
||
|
||
if (pdq->pdq_type == PDQ_DEFPA) {
|
||
/*
|
||
* Disable interrupts and DMA.
|
||
*/
|
||
*pdq->pdq_pci_csrs.csr_pfi_mode_control = 0;
|
||
*pdq->pdq_pci_csrs.csr_pfi_status = 0x10;
|
||
}
|
||
|
||
/*
|
||
* Flush all the databuf queues.
|
||
*/
|
||
pdq_flush_databuf_queue(&pdq->pdq_tx_info.tx_txq);
|
||
buffers = (PDQ_OS_DATABUF_T **) pdq->pdq_rx_info.rx_buffers;
|
||
for (idx = 0; idx < PDQ_RING_SIZE(pdq->pdq_dbp->pdqdb_receives); idx++) {
|
||
if (buffers[idx] != NULL) {
|
||
PDQ_OS_DATABUF_FREE(buffers[idx]);
|
||
buffers[idx] = NULL;
|
||
}
|
||
}
|
||
pdq->pdq_rx_info.rx_free = PDQ_RING_MASK(pdq->pdq_dbp->pdqdb_receives);
|
||
buffers = (PDQ_OS_DATABUF_T **) pdq->pdq_host_smt_info.rx_buffers;
|
||
for (idx = 0; idx < PDQ_RING_SIZE(pdq->pdq_dbp->pdqdb_host_smt); idx++) {
|
||
if (buffers[idx] != NULL) {
|
||
PDQ_OS_DATABUF_FREE(buffers[idx]);
|
||
buffers[idx] = NULL;
|
||
}
|
||
}
|
||
pdq->pdq_host_smt_info.rx_free = PDQ_RING_MASK(pdq->pdq_dbp->pdqdb_host_smt);
|
||
|
||
/*
|
||
* Reset the consumer indexes to 0.
|
||
*/
|
||
pdq->pdq_cbp->pdqcb_receives = 0;
|
||
pdq->pdq_cbp->pdqcb_transmits = 0;
|
||
pdq->pdq_cbp->pdqcb_host_smt = 0;
|
||
pdq->pdq_cbp->pdqcb_unsolicited_event = 0;
|
||
pdq->pdq_cbp->pdqcb_command_response = 0;
|
||
pdq->pdq_cbp->pdqcb_command_request = 0;
|
||
|
||
/*
|
||
* Reset the producer and completion indexes to 0.
|
||
*/
|
||
pdq->pdq_command_info.ci_request_producer = 0;
|
||
pdq->pdq_command_info.ci_response_producer = 0;
|
||
pdq->pdq_command_info.ci_request_completion = 0;
|
||
pdq->pdq_command_info.ci_response_completion = 0;
|
||
pdq->pdq_unsolicited_info.ui_producer = 0;
|
||
pdq->pdq_unsolicited_info.ui_completion = 0;
|
||
pdq->pdq_rx_info.rx_producer = 0;
|
||
pdq->pdq_rx_info.rx_completion = 0;
|
||
pdq->pdq_tx_info.tx_producer = 0;
|
||
pdq->pdq_tx_info.tx_completion = 0;
|
||
pdq->pdq_host_smt_info.rx_producer = 0;
|
||
pdq->pdq_host_smt_info.rx_completion = 0;
|
||
|
||
pdq->pdq_command_info.ci_request_free = PDQ_RING_MASK(pdq->pdq_dbp->pdqdb_command_requests);
|
||
pdq->pdq_command_info.ci_response_free = PDQ_RING_MASK(pdq->pdq_dbp->pdqdb_command_responses);
|
||
pdq->pdq_unsolicited_info.ui_free = PDQ_NUM_UNSOLICITED_EVENTS;
|
||
pdq->pdq_tx_info.tx_free = PDQ_RING_MASK(pdq->pdq_dbp->pdqdb_transmits);
|
||
|
||
/*
|
||
* Allow the DEFPA to do DMA. Then program the physical
|
||
* addresses of the consumer and descriptor blocks.
|
||
*/
|
||
if (pdq->pdq_type == PDQ_DEFPA) {
|
||
#ifdef PDQTEST
|
||
*pdq->pdq_pci_csrs.csr_pfi_mode_control = PDQ_PFI_MODE_DMA_ENABLE;
|
||
#else
|
||
*pdq->pdq_pci_csrs.csr_pfi_mode_control = PDQ_PFI_MODE_DMA_ENABLE
|
||
|PDQ_PFI_MODE_PFI_PCI_INTR|PDQ_PFI_MODE_PDQ_PCI_INTR;
|
||
#endif
|
||
}
|
||
|
||
/*
|
||
* Make the unsolicited queue has events ...
|
||
*/
|
||
pdq_process_unsolicited_events(pdq);
|
||
|
||
*csrs->csr_port_data_b = PDQ_DMA_BURST_8LW;
|
||
*csrs->csr_port_data_a = PDQ_SUB_CMD_DMA_BURST_SIZE_SET;
|
||
pdq_do_port_control(csrs, PDQ_PCTL_SUB_CMD);
|
||
|
||
*csrs->csr_port_data_b = 0;
|
||
*csrs->csr_port_data_a = PDQ_OS_VA_TO_PA(pdq->pdq_cbp);
|
||
pdq_do_port_control(csrs, PDQ_PCTL_CONSUMER_BLOCK);
|
||
|
||
*csrs->csr_port_data_b = 0;
|
||
*csrs->csr_port_data_a = PDQ_OS_VA_TO_PA(pdq->pdq_dbp) | PDQ_DMA_INIT_LW_BSWAP_DATA;
|
||
pdq_do_port_control(csrs, PDQ_PCTL_DMA_INIT);
|
||
|
||
for (cnt = 0; cnt < 1000; cnt++) {
|
||
state = PDQ_PSTS_ADAPTER_STATE(*csrs->csr_port_status);
|
||
if (state == PDQS_HALTED) {
|
||
if (pass > 0)
|
||
return PDQS_HALTED;
|
||
pass = 1;
|
||
goto restart;
|
||
}
|
||
if (state == PDQS_DMA_AVAILABLE) {
|
||
PDQ_PRINTF(("Transition to DMA Available took %d spins\n", cnt));
|
||
break;
|
||
}
|
||
PDQ_OS_USEC_DELAY(1000);
|
||
}
|
||
PDQ_ASSERT(state == PDQS_DMA_AVAILABLE);
|
||
|
||
*csrs->csr_host_int_type_0 = 0xFF;
|
||
*csrs->csr_host_int_enable = 0 /* PDQ_HOST_INT_STATE_CHANGE
|
||
|PDQ_HOST_INT_FATAL_ERROR|PDQ_HOST_INT_CMD_RSP_ENABLE
|
||
|PDQ_HOST_INT_UNSOL_ENABLE */;
|
||
|
||
/*
|
||
* Any other command but START should be valid.
|
||
*/
|
||
pdq->pdq_command_info.ci_pending_commands &= ~(PDQ_BITMASK(PDQC_START));
|
||
if (pdq->pdq_flags & PDQ_PRINTCHARS)
|
||
pdq->pdq_command_info.ci_pending_commands |= PDQ_BITMASK(PDQC_STATUS_CHARS_GET);
|
||
pdq_queue_commands(pdq);
|
||
|
||
if (pdq->pdq_flags & PDQ_PRINTCHARS) {
|
||
/*
|
||
* Now wait (up to 100ms) for the command(s) to finish.
|
||
*/
|
||
for (cnt = 0; cnt < 1000; cnt++) {
|
||
pdq_process_command_responses(pdq);
|
||
if (pdq->pdq_command_info.ci_response_producer == pdq->pdq_command_info.ci_response_completion)
|
||
break;
|
||
PDQ_OS_USEC_DELAY(1000);
|
||
}
|
||
state = PDQ_PSTS_ADAPTER_STATE(*csrs->csr_port_status);
|
||
}
|
||
|
||
return state;
|
||
}
|
||
|
||
void
|
||
pdq_run(
|
||
pdq_t *pdq)
|
||
{
|
||
const pdq_csrs_t * const csrs = &pdq->pdq_csrs;
|
||
pdq_state_t state;
|
||
|
||
state = PDQ_PSTS_ADAPTER_STATE(*csrs->csr_port_status);
|
||
PDQ_ASSERT(state != PDQS_DMA_UNAVAILABLE);
|
||
PDQ_ASSERT(state != PDQS_RESET);
|
||
PDQ_ASSERT(state != PDQS_HALTED);
|
||
PDQ_ASSERT(state != PDQS_UPGRADE);
|
||
PDQ_ASSERT(state != PDQS_RING_MEMBER);
|
||
switch (state) {
|
||
case PDQS_DMA_AVAILABLE: {
|
||
/*
|
||
* The PDQ after being reset screws up some of its state.
|
||
* So we need to clear all the errors/interrupts so the real
|
||
* ones will get through.
|
||
*/
|
||
*csrs->csr_host_int_type_0 = 0xFF;
|
||
*csrs->csr_host_int_enable = PDQ_HOST_INT_STATE_CHANGE|PDQ_HOST_INT_XMT_DATA_FLUSH
|
||
|PDQ_HOST_INT_FATAL_ERROR|PDQ_HOST_INT_CMD_RSP_ENABLE|PDQ_HOST_INT_UNSOL_ENABLE
|
||
|PDQ_HOST_INT_RX_ENABLE|PDQ_HOST_INT_TX_ENABLE|PDQ_HOST_INT_HOST_SMT_ENABLE;
|
||
/*
|
||
* Set the MAC and address filters and start up the PDQ.
|
||
*/
|
||
pdq_process_unsolicited_events(pdq);
|
||
pdq_process_received_data(pdq, &pdq->pdq_rx_info,
|
||
pdq->pdq_dbp->pdqdb_receives,
|
||
pdq->pdq_cbp->pdqcb_receives,
|
||
PDQ_RING_MASK(pdq->pdq_dbp->pdqdb_receives));
|
||
PDQ_DO_TYPE2_PRODUCER(pdq);
|
||
if (pdq->pdq_flags & PDQ_PASS_SMT) {
|
||
pdq_process_received_data(pdq, &pdq->pdq_host_smt_info,
|
||
pdq->pdq_dbp->pdqdb_host_smt,
|
||
pdq->pdq_cbp->pdqcb_host_smt,
|
||
PDQ_RING_MASK(pdq->pdq_dbp->pdqdb_host_smt));
|
||
*csrs->csr_host_smt_producer = pdq->pdq_host_smt_info.rx_producer | (pdq->pdq_host_smt_info.rx_completion << 8);
|
||
}
|
||
pdq->pdq_command_info.ci_pending_commands = PDQ_BITMASK(PDQC_FILTER_SET)
|
||
| PDQ_BITMASK(PDQC_ADDR_FILTER_SET) | PDQ_BITMASK(PDQC_START);
|
||
if (pdq->pdq_flags & PDQ_PRINTCHARS)
|
||
pdq->pdq_command_info.ci_pending_commands |= PDQ_BITMASK(PDQC_STATUS_CHARS_GET);
|
||
pdq_queue_commands(pdq);
|
||
break;
|
||
}
|
||
case PDQS_LINK_UNAVAILABLE:
|
||
case PDQS_LINK_AVAILABLE: {
|
||
pdq->pdq_command_info.ci_pending_commands = PDQ_BITMASK(PDQC_FILTER_SET)
|
||
| PDQ_BITMASK(PDQC_ADDR_FILTER_SET);
|
||
if (pdq->pdq_flags & PDQ_PRINTCHARS)
|
||
pdq->pdq_command_info.ci_pending_commands |= PDQ_BITMASK(PDQC_STATUS_CHARS_GET);
|
||
if (pdq->pdq_flags & PDQ_PASS_SMT) {
|
||
pdq_process_received_data(pdq, &pdq->pdq_host_smt_info,
|
||
pdq->pdq_dbp->pdqdb_host_smt,
|
||
pdq->pdq_cbp->pdqcb_host_smt,
|
||
PDQ_RING_MASK(pdq->pdq_dbp->pdqdb_host_smt));
|
||
*csrs->csr_host_smt_producer = pdq->pdq_host_smt_info.rx_producer | (pdq->pdq_host_smt_info.rx_completion << 8);
|
||
}
|
||
pdq_process_unsolicited_events(pdq);
|
||
pdq_queue_commands(pdq);
|
||
break;
|
||
}
|
||
case PDQS_RING_MEMBER: {
|
||
}
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
int
|
||
pdq_interrupt(
|
||
pdq_t *pdq)
|
||
{
|
||
const pdq_csrs_t * const csrs = &pdq->pdq_csrs;
|
||
pdq_uint32_t data;
|
||
int progress = 0;
|
||
|
||
if (pdq->pdq_type == PDQ_DEFPA)
|
||
if (*pdq->pdq_pci_csrs.csr_pfi_status & 0x10)
|
||
*pdq->pdq_pci_csrs.csr_pfi_status = 0x10;
|
||
|
||
while ((data = *csrs->csr_port_status) & PDQ_PSTS_INTR_PENDING) {
|
||
progress = 1;
|
||
PDQ_PRINTF(("PDQ Interrupt: Status = 0x%08x\n", data));
|
||
if (data & PDQ_PSTS_RCV_DATA_PENDING) {
|
||
pdq_process_received_data(pdq, &pdq->pdq_rx_info,
|
||
pdq->pdq_dbp->pdqdb_receives,
|
||
pdq->pdq_cbp->pdqcb_receives,
|
||
PDQ_RING_MASK(pdq->pdq_dbp->pdqdb_receives));
|
||
PDQ_DO_TYPE2_PRODUCER(pdq);
|
||
}
|
||
if (data & PDQ_PSTS_HOST_SMT_PENDING) {
|
||
pdq_process_received_data(pdq, &pdq->pdq_host_smt_info,
|
||
pdq->pdq_dbp->pdqdb_host_smt,
|
||
pdq->pdq_cbp->pdqcb_host_smt,
|
||
PDQ_RING_MASK(pdq->pdq_dbp->pdqdb_host_smt));
|
||
*csrs->csr_host_smt_producer = pdq->pdq_host_smt_info.rx_producer | (pdq->pdq_host_smt_info.rx_completion << 8);
|
||
}
|
||
if (data & PDQ_PSTS_XMT_DATA_PENDING)
|
||
pdq_process_transmitted_data(pdq);
|
||
if (data & PDQ_PSTS_UNSOL_PENDING)
|
||
pdq_process_unsolicited_events(pdq);
|
||
if (data & PDQ_PSTS_CMD_RSP_PENDING)
|
||
pdq_process_command_responses(pdq);
|
||
if (data & PDQ_PSTS_TYPE_0_PENDING) {
|
||
data = *csrs->csr_host_int_type_0;
|
||
if (data & PDQ_HOST_INT_STATE_CHANGE) {
|
||
pdq_state_t state = PDQ_PSTS_ADAPTER_STATE(*csrs->csr_port_status);
|
||
printf(PDQ_OS_PREFIX "%s", PDQ_OS_PREFIX_ARGS, pdq_adapter_states[state]);
|
||
if (state == PDQS_LINK_UNAVAILABLE) {
|
||
pdq->pdq_flags &= ~PDQ_TXOK;
|
||
} else if (state == PDQS_LINK_AVAILABLE) {
|
||
pdq->pdq_flags |= PDQ_TXOK;
|
||
pdq_os_restart_transmitter(pdq);
|
||
} else if (state == PDQS_HALTED) {
|
||
pdq_response_error_log_get_t log_entry;
|
||
pdq_halt_code_t halt_code = PDQ_PSTS_HALT_ID(*csrs->csr_port_status);
|
||
printf(": halt code = %d (%s)\n",
|
||
halt_code, pdq_halt_codes[halt_code]);
|
||
if (halt_code == PDQH_DMA_ERROR) {
|
||
PDQ_PRINTF(("\tPFI status = 0x%x, Host 0 Fatal Interrupt = 0x%x\n",
|
||
*pdq->pdq_pci_csrs.csr_pfi_status,
|
||
data & PDQ_HOST_INT_FATAL_ERROR));
|
||
}
|
||
pdq_read_error_log(pdq, &log_entry);
|
||
pdq_stop(pdq);
|
||
if (pdq->pdq_flags & PDQ_RUNNING)
|
||
pdq_run(pdq);
|
||
return 1;
|
||
}
|
||
printf("\n");
|
||
*csrs->csr_host_int_type_0 = PDQ_HOST_INT_STATE_CHANGE;
|
||
}
|
||
if (data & PDQ_HOST_INT_FATAL_ERROR) {
|
||
pdq_stop(pdq);
|
||
if (pdq->pdq_flags & PDQ_RUNNING)
|
||
pdq_run(pdq);
|
||
return 1;
|
||
}
|
||
if (data & PDQ_HOST_INT_XMT_DATA_FLUSH) {
|
||
printf(PDQ_OS_PREFIX "Flushing transmit queue\n", PDQ_OS_PREFIX_ARGS);
|
||
pdq->pdq_flags &= ~PDQ_TXOK;
|
||
pdq_flush_transmitter(pdq);
|
||
pdq_do_port_control(csrs, PDQ_PCTL_XMT_DATA_FLUSH_DONE);
|
||
*csrs->csr_host_int_type_0 = PDQ_HOST_INT_XMT_DATA_FLUSH;
|
||
}
|
||
}
|
||
if (pdq->pdq_type == PDQ_DEFPA)
|
||
if (*pdq->pdq_pci_csrs.csr_pfi_status & 0x10)
|
||
*pdq->pdq_pci_csrs.csr_pfi_status = 0x10;
|
||
}
|
||
return progress;
|
||
}
|
||
|
||
pdq_t *
|
||
pdq_initialize(
|
||
void *csr_va,
|
||
const char *name,
|
||
int unit,
|
||
void *ctx,
|
||
pdq_type_t type)
|
||
{
|
||
pdq_t *pdq;
|
||
pdq_state_t state;
|
||
const pdq_uint32_t contig_bytes = (sizeof(pdq_descriptor_block_t) * 2) - PDQ_OS_PAGESIZE;
|
||
pdq_uint8_t *p;
|
||
int idx;
|
||
|
||
PDQ_ASSERT(sizeof(pdq_descriptor_block_t) == 8192);
|
||
PDQ_ASSERT(sizeof(pdq_consumer_block_t) == 64);
|
||
PDQ_ASSERT(sizeof(pdq_response_filter_get_t) == PDQ_SIZE_RESPONSE_FILTER_GET);
|
||
PDQ_ASSERT(sizeof(pdq_cmd_addr_filter_set_t) == PDQ_SIZE_CMD_ADDR_FILTER_SET);
|
||
PDQ_ASSERT(sizeof(pdq_response_addr_filter_get_t) == PDQ_SIZE_RESPONSE_ADDR_FILTER_GET);
|
||
PDQ_ASSERT(sizeof(pdq_response_status_chars_get_t) == PDQ_SIZE_RESPONSE_STATUS_CHARS_GET);
|
||
PDQ_ASSERT(sizeof(pdq_response_fddi_mib_get_t) == PDQ_SIZE_RESPONSE_FDDI_MIB_GET);
|
||
PDQ_ASSERT(sizeof(pdq_response_dec_ext_mib_get_t) == PDQ_SIZE_RESPONSE_DEC_EXT_MIB_GET);
|
||
PDQ_ASSERT(sizeof(pdq_unsolicited_event_t) == 512);
|
||
|
||
pdq = (pdq_t *) PDQ_OS_MEMALLOC(sizeof(pdq_t));
|
||
if (pdq == NULL) {
|
||
PDQ_PRINTF(("malloc(%d) failed\n", sizeof(*pdq)));
|
||
return NULL;
|
||
}
|
||
PDQ_OS_MEMZERO(pdq, sizeof(pdq_t));
|
||
pdq->pdq_type = type;
|
||
pdq->pdq_unit = unit;
|
||
pdq->pdq_os_ctx = (void *) ctx;
|
||
pdq->pdq_os_name = name;
|
||
pdq->pdq_flags = PDQ_PRINTCHARS;
|
||
/*
|
||
* Allocate the additional data structures required by
|
||
* the PDQ driver. Allocate a contiguous region of memory
|
||
* for the descriptor block. We need to allocated enough
|
||
* to guarantee that we will a get 8KB block of memory aligned
|
||
* on a 8KB boundary. This turns to require that we allocate
|
||
* (N*2 - 1 page) pages of memory. On machine with less than
|
||
* a 8KB page size, it mean we will allocate more memory than
|
||
* we need. The extra will be used for the unsolicited event
|
||
* buffers (though on machines with 8KB pages we will to allocate
|
||
* them separately since there will be nothing left overs.)
|
||
*/
|
||
p = (pdq_uint8_t *) PDQ_OS_MEMALLOC_CONTIG(contig_bytes);
|
||
if (p != NULL) {
|
||
pdq_physaddr_t physaddr = PDQ_OS_VA_TO_PA(p) & 0x1FFF;
|
||
if (physaddr) {
|
||
pdq->pdq_unsolicited_info.ui_events = (pdq_unsolicited_event_t *) p;
|
||
pdq->pdq_dbp = (pdq_descriptor_block_t *) &p[0x2000 - physaddr];
|
||
} else {
|
||
pdq->pdq_dbp = (pdq_descriptor_block_t *) p;
|
||
pdq->pdq_unsolicited_info.ui_events = (pdq_unsolicited_event_t *) &p[0x2000];
|
||
}
|
||
}
|
||
if (contig_bytes == sizeof(pdq_descriptor_block_t)) {
|
||
pdq->pdq_unsolicited_info.ui_events =
|
||
(pdq_unsolicited_event_t *) PDQ_OS_MEMALLOC(
|
||
PDQ_NUM_UNSOLICITED_EVENTS * sizeof(pdq_unsolicited_event_t));
|
||
}
|
||
|
||
/*
|
||
* Make sure everything got allocated. If not, free what did
|
||
* get allocated and return.
|
||
*/
|
||
if (pdq->pdq_dbp == NULL || pdq->pdq_unsolicited_info.ui_events == NULL) {
|
||
cleanup_and_return:
|
||
if (pdq->pdq_dbp != NULL)
|
||
PDQ_OS_MEMFREE_CONTIG(pdq->pdq_dbp, contig_bytes);
|
||
if (contig_bytes == sizeof(pdq_descriptor_block_t) && pdq->pdq_unsolicited_info.ui_events != NULL)
|
||
PDQ_OS_MEMFREE(pdq->pdq_unsolicited_info.ui_events,
|
||
PDQ_NUM_UNSOLICITED_EVENTS * sizeof(pdq_unsolicited_event_t));
|
||
PDQ_OS_MEMFREE(pdq, sizeof(pdq_t));
|
||
return NULL;
|
||
}
|
||
|
||
pdq->pdq_cbp = (volatile pdq_consumer_block_t *) &pdq->pdq_dbp->pdqdb_consumer;
|
||
pdq->pdq_command_info.ci_bufstart = (pdq_uint8_t *) pdq->pdq_dbp->pdqdb_command_pool;
|
||
pdq->pdq_rx_info.rx_buffers = (void *) pdq->pdq_dbp->pdqdb_receive_buffers;
|
||
|
||
pdq->pdq_host_smt_info.rx_buffers = (void *) pdq->pdq_dbp->pdqdb_host_smt_buffers;
|
||
|
||
PDQ_PRINTF(("PDQ Descriptor Block = %p\n", pdq->pdq_dbp));
|
||
PDQ_PRINTF((" Recieve Queue = %p\n", pdq->pdq_dbp->pdqdb_receives));
|
||
PDQ_PRINTF((" Transmit Queue = %p\n", pdq->pdq_dbp->pdqdb_transmits));
|
||
PDQ_PRINTF((" Host SMT Queue = %p\n", pdq->pdq_dbp->pdqdb_host_smt));
|
||
PDQ_PRINTF((" Command Response Queue = %p\n", pdq->pdq_dbp->pdqdb_command_responses));
|
||
PDQ_PRINTF((" Command Request Queue = %p\n", pdq->pdq_dbp->pdqdb_command_requests));
|
||
PDQ_PRINTF(("PDQ Consumer Block = %p\n", pdq->pdq_cbp));
|
||
|
||
/*
|
||
* Zero out the descriptor block. Not really required but
|
||
* it pays to be neat. This will also zero out the consumer
|
||
* block, command pool, and buffer pointers for the receive
|
||
* host_smt rings.
|
||
*/
|
||
PDQ_OS_MEMZERO(pdq->pdq_dbp, sizeof(*pdq->pdq_dbp));
|
||
|
||
/*
|
||
* Initialize the CSR references.
|
||
*/
|
||
pdq_init_csrs(&pdq->pdq_csrs, csr_va, 1);
|
||
switch (pdq->pdq_type) {
|
||
case PDQ_DEFPA: pdq_init_pci_csrs(&pdq->pdq_pci_csrs, csr_va, 1); break;
|
||
#ifdef PDQ_DO_EISA
|
||
case PDQ_DEFEA: pdq_init_esia_csrs(&pdq->pdq_eisa_csrs, csr_va, 1); break;
|
||
#endif
|
||
default:
|
||
break;
|
||
}
|
||
|
||
PDQ_PRINTF(("PDQ CSRs:\n"));
|
||
PDQ_PRINTF((" Port Reset = %p [0x%08x]\n",
|
||
pdq->pdq_csrs.csr_port_reset, *pdq->pdq_csrs.csr_port_reset));
|
||
PDQ_PRINTF((" Host Data = %p [0x%08x]\n",
|
||
pdq->pdq_csrs.csr_host_data, *pdq->pdq_csrs.csr_host_data));
|
||
PDQ_PRINTF((" Port Control = %p [0x%08x]\n",
|
||
pdq->pdq_csrs.csr_port_control, *pdq->pdq_csrs.csr_port_control));
|
||
PDQ_PRINTF((" Port Data A = %p [0x%08x]\n",
|
||
pdq->pdq_csrs.csr_port_data_a, *pdq->pdq_csrs.csr_port_data_a));
|
||
PDQ_PRINTF((" Port Data B = %p [0x%08x]\n",
|
||
pdq->pdq_csrs.csr_port_data_b, *pdq->pdq_csrs.csr_port_data_b));
|
||
PDQ_PRINTF((" Port Status = %p [0x%08x]\n",
|
||
pdq->pdq_csrs.csr_port_status, *pdq->pdq_csrs.csr_port_status));
|
||
PDQ_PRINTF((" Host Int Type 0 = %p [0x%08x]\n",
|
||
pdq->pdq_csrs.csr_host_int_type_0, *pdq->pdq_csrs.csr_host_int_type_0));
|
||
PDQ_PRINTF((" Host Int Enable = %p [0x%08x]\n",
|
||
pdq->pdq_csrs.csr_host_int_enable, *pdq->pdq_csrs.csr_host_int_enable));
|
||
PDQ_PRINTF((" Type 2 Producer = %p [0x%08x]\n",
|
||
pdq->pdq_csrs.csr_type_2_producer, *pdq->pdq_csrs.csr_type_2_producer));
|
||
PDQ_PRINTF((" Command Response Producer = %p [0x%08x]\n",
|
||
pdq->pdq_csrs.csr_cmd_response_producer, *pdq->pdq_csrs.csr_cmd_response_producer));
|
||
PDQ_PRINTF((" Command Request Producer = %p [0x%08x]\n",
|
||
pdq->pdq_csrs.csr_cmd_request_producer, *pdq->pdq_csrs.csr_cmd_request_producer));
|
||
PDQ_PRINTF((" Host SMT Producer = %p [0x%08x]\n",
|
||
pdq->pdq_csrs.csr_host_smt_producer, *pdq->pdq_csrs.csr_host_smt_producer));
|
||
PDQ_PRINTF((" Unsolicited Producer = %p [0x%08x]\n",
|
||
pdq->pdq_csrs.csr_unsolicited_producer, *pdq->pdq_csrs.csr_unsolicited_producer));
|
||
|
||
/*
|
||
* Initialize the command information block
|
||
*/
|
||
pdq->pdq_command_info.ci_buffree = sizeof(pdq->pdq_dbp->pdqdb_command_pool);
|
||
pdq->pdq_command_info.ci_bufend = pdq->pdq_command_info.ci_bufstart + pdq->pdq_command_info.ci_buffree;
|
||
pdq->pdq_command_info.ci_bufptr = pdq->pdq_command_info.ci_bufstart;
|
||
pdq->pdq_command_info.ci_pa_bufstart = PDQ_OS_VA_TO_PA(pdq->pdq_command_info.ci_bufstart);
|
||
pdq->pdq_command_info.ci_request_max = pdq->pdq_command_info.ci_request_free = PDQ_RING_MASK(pdq->pdq_dbp->pdqdb_command_requests);
|
||
pdq->pdq_command_info.ci_response_max = pdq->pdq_command_info.ci_response_free = PDQ_RING_MASK(pdq->pdq_dbp->pdqdb_command_responses);
|
||
|
||
/*
|
||
* Initialize the unsolicited event information block
|
||
*/
|
||
pdq->pdq_unsolicited_info.ui_free = PDQ_NUM_UNSOLICITED_EVENTS;
|
||
pdq->pdq_unsolicited_info.ui_pa_bufstart = PDQ_OS_VA_TO_PA(pdq->pdq_unsolicited_info.ui_events);
|
||
for (idx = 0; idx < sizeof(pdq->pdq_dbp->pdqdb_unsolicited_events)/sizeof(pdq->pdq_dbp->pdqdb_unsolicited_events[0]); idx++) {
|
||
pdq_rxdesc_t *rxd = &pdq->pdq_dbp->pdqdb_unsolicited_events[idx];
|
||
pdq_unsolicited_event_t *event = &pdq->pdq_unsolicited_info.ui_events[idx & (PDQ_NUM_UNSOLICITED_EVENTS-1)];
|
||
|
||
rxd->rxd_sop = 1;
|
||
rxd->rxd_seg_cnt = 0;
|
||
rxd->rxd_seg_len_hi = sizeof(pdq_unsolicited_event_t) / 16;
|
||
rxd->rxd_pa_lo = pdq->pdq_unsolicited_info.ui_pa_bufstart + (const pdq_uint8_t *) event
|
||
- (const pdq_uint8_t *) pdq->pdq_unsolicited_info.ui_events;
|
||
rxd->rxd_pa_hi = 0;
|
||
}
|
||
/*
|
||
* Initialize the receive information blocks (normal and SMT).
|
||
*/
|
||
pdq->pdq_rx_info.rx_free = PDQ_RING_MASK(pdq->pdq_dbp->pdqdb_receives);
|
||
pdq->pdq_rx_info.rx_target = pdq->pdq_rx_info.rx_free - PDQ_RX_SEGCNT * 8;
|
||
|
||
pdq->pdq_host_smt_info.rx_free = PDQ_RING_MASK(pdq->pdq_dbp->pdqdb_host_smt);
|
||
pdq->pdq_host_smt_info.rx_target = pdq->pdq_host_smt_info.rx_free - PDQ_RX_SEGCNT * 3;
|
||
|
||
/*
|
||
* Initialize the transmit information block.
|
||
*/
|
||
pdq->pdq_tx_hdr[0] = PDQ_FDDI_PH0;
|
||
pdq->pdq_tx_hdr[1] = PDQ_FDDI_PH1;
|
||
pdq->pdq_tx_hdr[2] = PDQ_FDDI_PH2;
|
||
pdq->pdq_tx_info.tx_free = PDQ_RING_MASK(pdq->pdq_dbp->pdqdb_transmits);
|
||
pdq->pdq_tx_info.tx_hdrdesc.txd_seg_len = sizeof(pdq->pdq_tx_hdr);
|
||
pdq->pdq_tx_info.tx_hdrdesc.txd_sop = 1;
|
||
pdq->pdq_tx_info.tx_hdrdesc.txd_pa_lo = PDQ_OS_VA_TO_PA(pdq->pdq_tx_hdr);
|
||
|
||
state = PDQ_PSTS_ADAPTER_STATE(*pdq->pdq_csrs.csr_port_status);
|
||
PDQ_PRINTF(("PDQ Adapter State = %s\n", pdq_adapter_states[state]));
|
||
|
||
/*
|
||
* Stop the PDQ if it is running and put it into a known state.
|
||
*/
|
||
state = pdq_stop(pdq);
|
||
|
||
/* state = PDQ_PSTS_ADAPTER_STATE(*pdq->pdq_csrs.csr_port_status); */
|
||
PDQ_PRINTF(("PDQ Adapter State = %s\n", pdq_adapter_states[state]));
|
||
PDQ_ASSERT(state == PDQS_DMA_AVAILABLE);
|
||
/*
|
||
* If the adapter is not the state we expect, then the initialization
|
||
* failed. Cleanup and exit.
|
||
*/
|
||
if (state == PDQS_RESET || state == PDQS_HALTED || state == PDQS_UPGRADE)
|
||
goto cleanup_and_return;
|
||
|
||
PDQ_PRINTF(("PDQ Hardware Address = %02x-%02x-%02x-%02x-%02x-%02x\n",
|
||
pdq->pdq_hwaddr.lanaddr_bytes[0], pdq->pdq_hwaddr.lanaddr_bytes[1],
|
||
pdq->pdq_hwaddr.lanaddr_bytes[2], pdq->pdq_hwaddr.lanaddr_bytes[3],
|
||
pdq->pdq_hwaddr.lanaddr_bytes[4], pdq->pdq_hwaddr.lanaddr_bytes[5]));
|
||
PDQ_PRINTF(("PDQ Firmware Revision = %c%c%c%c\n",
|
||
pdq->pdq_fwrev.fwrev_bytes[0], pdq->pdq_fwrev.fwrev_bytes[1],
|
||
pdq->pdq_fwrev.fwrev_bytes[2], pdq->pdq_fwrev.fwrev_bytes[3]));
|
||
PDQ_PRINTF(("PDQ Chip Revision = "));
|
||
switch (pdq->pdq_chip_rev) {
|
||
case PDQ_CHIP_REV_A_B_OR_C: PDQ_PRINTF(("Rev C or below")); break;
|
||
case PDQ_CHIP_REV_D: PDQ_PRINTF(("Rev D")); break;
|
||
case PDQ_CHIP_REV_E: PDQ_PRINTF(("Rev E")); break;
|
||
default: PDQ_PRINTF(("Unknown Rev %d", (int) pdq->pdq_chip_rev));
|
||
}
|
||
PDQ_PRINTF(("\n"));
|
||
|
||
return pdq;
|
||
}
|