NetBSD-5.0.2/sys/dev/pci/twa.c
/* $NetBSD: twa.c,v 1.28.10.1 2009/08/07 06:09:44 snj Exp $ */
/* $wasabi: twa.c,v 1.27 2006/07/28 18:17:21 wrstuden Exp $ */
/*-
* Copyright (c) 2004 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jordan Rhody of Wasabi Systems, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*-
* Copyright (c) 2003-04 3ware, Inc.
* Copyright (c) 2000 Michael Smith
* Copyright (c) 2000 BSDi
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD: src/sys/dev/twa/twa.c,v 1.2 2004/04/02 15:09:57 des Exp $
*/
/*
* 3ware driver for 9000 series storage controllers.
*
* Author: Vinod Kashyap
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: twa.c,v 1.28.10.1 2009/08/07 06:09:44 snj Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/queue.h>
#include <sys/proc.h>
#include <sys/bswap.h>
#include <sys/buf.h>
#include <sys/bufq.h>
#include <sys/endian.h>
#include <sys/malloc.h>
#include <sys/conf.h>
#include <sys/disk.h>
#include <sys/sysctl.h>
#include <sys/syslog.h>
#if 1
#include <sys/ktrace.h>
#endif
#include <uvm/uvm_extern.h>
#include <sys/bus.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/pci/twareg.h>
#include <dev/pci/twavar.h>
#include <dev/pci/twaio.h>
#include <dev/scsipi/scsipi_all.h>
#include <dev/scsipi/scsipi_disk.h>
#include <dev/scsipi/scsipiconf.h>
#include <dev/scsipi/scsi_spc.h>
#include <dev/ldvar.h>
#include "locators.h"
#define PCI_CBIO 0x10
static int twa_fetch_aen(struct twa_softc *);
static void twa_aen_callback(struct twa_request *);
static int twa_find_aen(struct twa_softc *sc, uint16_t);
static uint16_t twa_enqueue_aen(struct twa_softc *sc,
struct twa_command_header *);
static void twa_attach(struct device *, struct device *, void *);
static void twa_shutdown(void *);
static int twa_init_connection(struct twa_softc *, uint16_t, uint32_t,
uint16_t, uint16_t, uint16_t, uint16_t, uint16_t *,
uint16_t *, uint16_t *, uint16_t *, uint32_t *);
static int twa_intr(void *);
static int twa_match(struct device *, struct cfdata *, void *);
static int twa_reset(struct twa_softc *);
static int twa_print(void *, const char *);
static int twa_soft_reset(struct twa_softc *);
static int twa_check_ctlr_state(struct twa_softc *, uint32_t);
static int twa_get_param(struct twa_softc *, int, int, size_t,
void (* callback)(struct twa_request *),
struct twa_param_9k **);
static int twa_set_param(struct twa_softc *, int, int, int, void *,
void (* callback)(struct twa_request *));
static void twa_describe_controller(struct twa_softc *);
static int twa_wait_status(struct twa_softc *, uint32_t, uint32_t);
static int twa_done(struct twa_softc *);
extern struct cfdriver twa_cd;
extern uint32_t twa_fw_img_size;
extern uint8_t twa_fw_img[];
CFATTACH_DECL(twa, sizeof(struct twa_softc),
twa_match, twa_attach, NULL, NULL);
/* FreeBSD driver revision for sysctl expected by the 3ware cli */
const char twaver[] = "1.50.01.002";
/* AEN messages. */
static const struct twa_message twa_aen_table[] = {
{0x0000, "AEN queue empty"},
{0x0001, "Controller reset occurred"},
{0x0002, "Degraded unit detected"},
{0x0003, "Controller error occured"},
{0x0004, "Background rebuild failed"},
{0x0005, "Background rebuild done"},
{0x0006, "Incomplete unit detected"},
{0x0007, "Background initialize done"},
{0x0008, "Unclean shutdown detected"},
{0x0009, "Drive timeout detected"},
{0x000A, "Drive error detected"},
{0x000B, "Rebuild started"},
{0x000C, "Background initialize started"},
{0x000D, "Entire logical unit was deleted"},
{0x000E, "Background initialize failed"},
{0x000F, "SMART attribute exceeded threshold"},
{0x0010, "Power supply reported AC under range"},
{0x0011, "Power supply reported DC out of range"},
{0x0012, "Power supply reported a malfunction"},
{0x0013, "Power supply predicted malfunction"},
{0x0014, "Battery charge is below threshold"},
{0x0015, "Fan speed is below threshold"},
{0x0016, "Temperature sensor is above threshold"},
{0x0017, "Power supply was removed"},
{0x0018, "Power supply was inserted"},
{0x0019, "Drive was removed from a bay"},
{0x001A, "Drive was inserted into a bay"},
{0x001B, "Drive bay cover door was opened"},
{0x001C, "Drive bay cover door was closed"},
{0x001D, "Product case was opened"},
{0x0020, "Prepare for shutdown (power-off)"},
{0x0021, "Downgrade UDMA mode to lower speed"},
{0x0022, "Upgrade UDMA mode to higher speed"},
{0x0023, "Sector repair completed"},
{0x0024, "Sbuf memory test failed"},
{0x0025, "Error flushing cached write data to disk"},
{0x0026, "Drive reported data ECC error"},
{0x0027, "DCB has checksum error"},
{0x0028, "DCB version is unsupported"},
{0x0029, "Background verify started"},
{0x002A, "Background verify failed"},
{0x002B, "Background verify done"},
{0x002C, "Bad sector overwritten during rebuild"},
{0x002D, "Source drive error occurred"},
{0x002E, "Replace failed because replacement drive too small"},
{0x002F, "Verify failed because array was never initialized"},
{0x0030, "Unsupported ATA drive"},
{0x0031, "Synchronize host/controller time"},
{0x0032, "Spare capacity is inadequate for some units"},
{0x0033, "Background migration started"},
{0x0034, "Background migration failed"},
{0x0035, "Background migration done"},
{0x0036, "Verify detected and fixed data/parity mismatch"},
{0x0037, "SO-DIMM incompatible"},
{0x0038, "SO-DIMM not detected"},
{0x0039, "Corrected Sbuf ECC error"},
{0x003A, "Drive power on reset detected"},
{0x003B, "Background rebuild paused"},
{0x003C, "Background initialize paused"},
{0x003D, "Background verify paused"},
{0x003E, "Background migration paused"},
{0x003F, "Corrupt flash file system detected"},
{0x0040, "Flash file system repaired"},
{0x0041, "Unit number assignments were lost"},
{0x0042, "Error during read of primary DCB"},
{0x0043, "Latent error found in backup DCB"},
{0x0044, "Battery voltage is normal"},
{0x0045, "Battery voltage is low"},
{0x0046, "Battery voltage is high"},
{0x0047, "Battery voltage is too low"},
{0x0048, "Battery voltage is too high"},
{0x0049, "Battery temperature is normal"},
{0x004A, "Battery temperature is low"},
{0x004B, "Battery temperature is high"},
{0x004C, "Battery temperature is too low"},
{0x004D, "Battery temperature is too high"},
{0x004E, "Battery capacity test started"},
{0x004F, "Cache synchronization skipped"},
{0x0050, "Battery capacity test completed"},
{0x0051, "Battery health check started"},
{0x0052, "Battery health check completed"},
{0x0053, "Battery capacity test needed"},
{0x0054, "Battery charge termination voltage is at high level"},
{0x0055, "Battery charging started"},
{0x0056, "Battery charging completed"},
{0x0057, "Battery charging fault"},
{0x0058, "Battery capacity is below warning level"},
{0x0059, "Battery capacity is below error level"},
{0x005A, "Battery is present"},
{0x005B, "Battery is not present"},
{0x005C, "Battery is weak"},
{0x005D, "Battery health check failed"},
{0x005E, "Cache synchronized after power fail"},
{0x005F, "Cache synchronization failed; some data lost"},
{0x0060, "Bad cache meta data checksum"},
{0x0061, "Bad cache meta data signature"},
{0x0062, "Cache meta data restore failed"},
{0x0063, "BBU not found after power fail"},
{0x00FC, "Recovered/finished array membership update"},
{0x00FD, "Handler lockup"},
{0x00FE, "Retrying PCI transfer"},
{0x00FF, "AEN queue is full"},
{0xFFFFFFFF, (char *)NULL}
};
/* AEN severity table. */
static const char *twa_aen_severity_table[] = {
"None",
"ERROR",
"WARNING",
"INFO",
"DEBUG",
(char *)NULL
};
/* Error messages. */
static const struct twa_message twa_error_table[] = {
{0x0100, "SGL entry contains zero data"},
{0x0101, "Invalid command opcode"},
{0x0102, "SGL entry has unaligned address"},
{0x0103, "SGL size does not match command"},
{0x0104, "SGL entry has illegal length"},
{0x0105, "Command packet is not aligned"},
{0x0106, "Invalid request ID"},
{0x0107, "Duplicate request ID"},
{0x0108, "ID not locked"},
{0x0109, "LBA out of range"},
{0x010A, "Logical unit not supported"},
{0x010B, "Parameter table does not exist"},
{0x010C, "Parameter index does not exist"},
{0x010D, "Invalid field in CDB"},
{0x010E, "Specified port has invalid drive"},
{0x010F, "Parameter item size mismatch"},
{0x0110, "Failed memory allocation"},
{0x0111, "Memory request too large"},
{0x0112, "Out of memory segments"},
{0x0113, "Invalid address to deallocate"},
{0x0114, "Out of memory"},
{0x0115, "Out of heap"},
{0x0120, "Double degrade"},
{0x0121, "Drive not degraded"},
{0x0122, "Reconstruct error"},
{0x0123, "Replace not accepted"},
{0x0124, "Replace drive capacity too small"},
{0x0125, "Sector count not allowed"},
{0x0126, "No spares left"},
{0x0127, "Reconstruct error"},
{0x0128, "Unit is offline"},
{0x0129, "Cannot update status to DCB"},
{0x0130, "Invalid stripe handle"},
{0x0131, "Handle that was not locked"},
{0x0132, "Handle that was not empy"},
{0x0133, "Handle has different owner"},
{0x0140, "IPR has parent"},
{0x0150, "Illegal Pbuf address alignment"},
{0x0151, "Illegal Pbuf transfer length"},
{0x0152, "Illegal Sbuf address alignment"},
{0x0153, "Illegal Sbuf transfer length"},
{0x0160, "Command packet too large"},
{0x0161, "SGL exceeds maximum length"},
{0x0162, "SGL has too many entries"},
{0x0170, "Insufficient resources for rebuilder"},
{0x0171, "Verify error (data != parity)"},
{0x0180, "Requested segment not in directory of this DCB"},
{0x0181, "DCB segment has unsupported version"},
{0x0182, "DCB segment has checksum error"},
{0x0183, "DCB support (settings) segment invalid"},
{0x0184, "DCB UDB (unit descriptor block) segment invalid"},
{0x0185, "DCB GUID (globally unique identifier) segment invalid"},
{0x01A0, "Could not clear Sbuf"},
{0x01C0, "Flash identify failed"},
{0x01C1, "Flash out of bounds"},
{0x01C2, "Flash verify error"},
{0x01C3, "Flash file object not found"},
{0x01C4, "Flash file already present"},
{0x01C5, "Flash file system full"},
{0x01C6, "Flash file not present"},
{0x01C7, "Flash file size error"},
{0x01C8, "Bad flash file checksum"},
{0x01CA, "Corrupt flash file system detected"},
{0x01D0, "Invalid field in parameter list"},
{0x01D1, "Parameter list length error"},
{0x01D2, "Parameter item is not changeable"},
{0x01D3, "Parameter item is not saveable"},
{0x0200, "UDMA CRC error"},
{0x0201, "Internal CRC error"},
{0x0202, "Data ECC error"},
{0x0203, "ADP level 1 error"},
{0x0204, "Port timeout"},
{0x0205, "Drive power on reset"},
{0x0206, "ADP level 2 error"},
{0x0207, "Soft reset failed"},
{0x0208, "Drive not ready"},
{0x0209, "Unclassified port error"},
{0x020A, "Drive aborted command"},
{0x0210, "Internal CRC error"},
{0x0211, "Host PCI bus abort"},
{0x0212, "Host PCI parity error"},
{0x0213, "Port handler error"},
{0x0214, "Token interrupt count error"},
{0x0215, "Timeout waiting for PCI transfer"},
{0x0216, "Corrected buffer ECC"},
{0x0217, "Uncorrected buffer ECC"},
{0x0230, "Unsupported command during flash recovery"},
{0x0231, "Next image buffer expected"},
{0x0232, "Binary image architecture incompatible"},
{0x0233, "Binary image has no signature"},
{0x0234, "Binary image has bad checksum"},
{0x0235, "Image downloaded overflowed buffer"},
{0x0240, "I2C device not found"},
{0x0241, "I2C transaction aborted"},
{0x0242, "SO-DIMM parameter(s) incompatible using defaults"},
{0x0243, "SO-DIMM unsupported"},
{0x0248, "SPI transfer status error"},
{0x0249, "SPI transfer timeout error"},
{0x0250, "Invalid unit descriptor size in CreateUnit"},
{0x0251, "Unit descriptor size exceeds data buffer in CreateUnit"},
{0x0252, "Invalid value in CreateUnit descriptor"},
{0x0253, "Inadequate disk space to support descriptor in CreateUnit"},
{0x0254, "Unable to create data channel for this unit descriptor"},
{0x0255, "CreateUnit descriptor specifies a drive already in use"},
{0x0256, "Unable to write configuration to all disks during CreateUnit"},
{0x0257, "CreateUnit does not support this descriptor version"},
{0x0258, "Invalid subunit for RAID 0 or 5 in CreateUnit"},
{0x0259, "Too many descriptors in CreateUnit"},
{0x025A, "Invalid configuration specified in CreateUnit descriptor"},
{0x025B, "Invalid LBA offset specified in CreateUnit descriptor"},
{0x025C, "Invalid stripelet size specified in CreateUnit descriptor"},
{0x0260, "SMART attribute exceeded threshold"},
{0xFFFFFFFF, (char *)NULL}
};
struct twa_pci_identity {
uint32_t vendor_id;
uint32_t product_id;
const char *name;
};
static const struct twa_pci_identity pci_twa_products[] = {
{ PCI_VENDOR_3WARE,
PCI_PRODUCT_3WARE_9000,
"3ware 9000 series",
},
{ PCI_VENDOR_3WARE,
PCI_PRODUCT_3WARE_9550,
"3ware 9550SX series",
},
{ PCI_VENDOR_3WARE,
PCI_PRODUCT_3WARE_9650,
"3ware 9650SE series",
},
{ PCI_VENDOR_3WARE,
PCI_PRODUCT_3WARE_9690,
"3ware 9690 series",
},
{ 0,
0,
NULL,
},
};
static inline void
twa_outl(struct twa_softc *sc, int off, uint32_t val)
{
bus_space_write_4(sc->twa_bus_iot, sc->twa_bus_ioh, off, val);
bus_space_barrier(sc->twa_bus_iot, sc->twa_bus_ioh, off, 4,
BUS_SPACE_BARRIER_WRITE);
}
static inline uint32_t twa_inl(struct twa_softc *sc, int off)
{
bus_space_barrier(sc->twa_bus_iot, sc->twa_bus_ioh, off, 4,
BUS_SPACE_BARRIER_WRITE | BUS_SPACE_BARRIER_READ);
return (bus_space_read_4(sc->twa_bus_iot, sc->twa_bus_ioh, off));
}
void
twa_request_wait_handler(struct twa_request *tr)
{
wakeup(tr);
}
static int
twa_match(struct device *parent, struct cfdata *cfdata,
void *aux)
{
int i;
struct pci_attach_args *pa = aux;
const struct twa_pci_identity *entry = 0;
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_3WARE) {
for (i = 0; (pci_twa_products[i].product_id); i++) {
entry = &pci_twa_products[i];
if (entry->product_id == PCI_PRODUCT(pa->pa_id)) {
aprint_normal("%s: (rev. 0x%02x)\n",
entry->name, PCI_REVISION(pa->pa_class));
return (1);
}
}
}
return (0);
}
static const char *
twa_find_msg_string(const struct twa_message *table, uint16_t code)
{
int i;
for (i = 0; table[i].message != NULL; i++)
if (table[i].code == code)
return(table[i].message);
return(table[i].message);
}
void
twa_release_request(struct twa_request *tr)
{
int s;
struct twa_softc *sc;
sc = tr->tr_sc;
if ((tr->tr_flags & TWA_CMD_AEN) == 0) {
s = splbio();
TAILQ_INSERT_TAIL(&tr->tr_sc->twa_free, tr, tr_link);
splx(s);
if (__predict_false((tr->tr_sc->twa_sc_flags &
TWA_STATE_REQUEST_WAIT) != 0)) {
tr->tr_sc->twa_sc_flags &= ~TWA_STATE_REQUEST_WAIT;
wakeup(&sc->twa_free);
}
} else
tr->tr_flags &= ~TWA_CMD_AEN_BUSY;
}
static void
twa_unmap_request(struct twa_request *tr)
{
struct twa_softc *sc = tr->tr_sc;
uint8_t cmd_status;
int s;
/* If the command involved data, unmap that too. */
if (tr->tr_data != NULL) {
if (tr->tr_cmd_pkt_type & TWA_CMD_PKT_TYPE_9K)
cmd_status = tr->tr_command->command.cmd_pkt_9k.status;
else
cmd_status =
tr->tr_command->command.cmd_pkt_7k.generic.status;
if (tr->tr_flags & TWA_CMD_DATA_OUT) {
bus_dmamap_sync(tr->tr_sc->twa_dma_tag, tr->tr_dma_map,
0, tr->tr_length, BUS_DMASYNC_POSTREAD);
/*
* If we are using a bounce buffer, and we are reading
* data, copy the real data in.
*/
if (tr->tr_flags & TWA_CMD_DATA_COPY_NEEDED)
if (cmd_status == 0)
memcpy(tr->tr_real_data, tr->tr_data,
tr->tr_real_length);
}
if (tr->tr_flags & TWA_CMD_DATA_IN)
bus_dmamap_sync(tr->tr_sc->twa_dma_tag, tr->tr_dma_map,
0, tr->tr_length, BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(sc->twa_dma_tag, tr->tr_dma_map);
}
/* Free alignment buffer if it was used. */
if (tr->tr_flags & TWA_CMD_DATA_COPY_NEEDED) {
s = splvm();
uvm_km_free(kmem_map, (vaddr_t)tr->tr_data,
tr->tr_length, UVM_KMF_WIRED);
splx(s);
tr->tr_data = tr->tr_real_data;
tr->tr_length = tr->tr_real_length;
}
}
/*
* Function name: twa_wait_request
* Description: Sends down a firmware cmd, and waits for the completion,
* but NOT in a tight loop.
*
* Input: tr -- ptr to request pkt
* timeout -- max # of seconds to wait before giving up
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
static int
twa_wait_request(struct twa_request *tr, uint32_t timeout)
{
time_t end_time;
struct timeval t1;
int s, rv;
tr->tr_flags |= TWA_CMD_SLEEP_ON_REQUEST;
tr->tr_callback = twa_request_wait_handler;
tr->tr_status = TWA_CMD_BUSY;
rv = twa_map_request(tr);
if (rv != 0)
return (rv);
microtime(&t1);
end_time = t1.tv_usec +
(timeout * 1000 * 100);
while (tr->tr_status != TWA_CMD_COMPLETE) {
rv = tr->tr_error;
if (rv != 0)
return(rv);
if ((rv = tsleep(tr, PRIBIO, "twawait", timeout * hz)) == 0)
break;
if (rv == EWOULDBLOCK) {
/*
* We will reset the controller only if the request has
* already been submitted, so as to not lose the
* request packet. If a busy request timed out, the
* reset will take care of freeing resources. If a
* pending request timed out, we will free resources
* for that request, right here. So, the caller is
* expected to NOT cleanup when ETIMEDOUT is returned.
*/
if (tr->tr_status == TWA_CMD_BUSY)
twa_reset(tr->tr_sc);
else {
/* Request was never submitted. Clean up. */
s = splbio();
TAILQ_REMOVE(&tr->tr_sc->twa_pending, tr,
tr_link);
splx(s);
twa_unmap_request(tr);
if (tr->tr_data)
free(tr->tr_data, M_DEVBUF);
twa_release_request(tr);
}
return(ETIMEDOUT);
}
/*
* Either the request got completed, or we were woken up by a
* signal. Calculate the new timeout, in case it was the
* latter.
*/
microtime(&t1);
timeout = (end_time - t1.tv_usec) / (1000 * 100);
}
return(rv);
}
/*
* Function name: twa_immediate_request
* Description: Sends down a firmware cmd, and waits for the completion
* in a tight loop.
*
* Input: tr -- ptr to request pkt
* timeout -- max # of seconds to wait before giving up
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
static int
twa_immediate_request(struct twa_request *tr, uint32_t timeout)
{
struct timeval t1;
int s = 0, rv = 0;
rv = twa_map_request(tr);
if (rv != 0)
return(rv);
timeout = (timeout * 10000 * 10);
microtime(&t1);
timeout += t1.tv_usec;
do {
rv = tr->tr_error;
if (rv != 0)
return(rv);
s = splbio();
twa_done(tr->tr_sc);
splx(s);
if (tr->tr_status == TWA_CMD_COMPLETE)
return(rv);
microtime(&t1);
} while (t1.tv_usec <= timeout);
/*
* We will reset the controller only if the request has
* already been submitted, so as to not lose the
* request packet. If a busy request timed out, the
* reset will take care of freeing resources. If a
* pending request timed out, we will free resources
* for that request, right here. So, the caller is
* expected to NOT cleanup when ETIMEDOUT is returned.
*/
rv = ETIMEDOUT;
if (tr->tr_status == TWA_CMD_BUSY)
twa_reset(tr->tr_sc);
else {
/* Request was never submitted. Clean up. */
s = splbio();
TAILQ_REMOVE(&tr->tr_sc->twa_pending, tr, tr_link);
splx(s);
twa_unmap_request(tr);
if (tr->tr_data)
free(tr->tr_data, M_DEVBUF);
twa_release_request(tr);
}
return (rv);
}
static int
twa_inquiry(struct twa_request *tr, int lunid)
{
int error;
struct twa_command_9k *tr_9k_cmd;
if (tr->tr_data == NULL)
return (ENOMEM);
memset(tr->tr_data, 0, TWA_SECTOR_SIZE);
tr->tr_length = TWA_SECTOR_SIZE;
tr->tr_cmd_pkt_type = TWA_CMD_PKT_TYPE_9K;
tr->tr_flags |= TWA_CMD_DATA_IN | TWA_CMD_DATA_OUT;
tr_9k_cmd = &tr->tr_command->command.cmd_pkt_9k;
tr_9k_cmd->command.opcode = TWA_OP_EXECUTE_SCSI_COMMAND;
tr_9k_cmd->unit = lunid;
tr_9k_cmd->request_id = tr->tr_request_id;
tr_9k_cmd->status = 0;
tr_9k_cmd->sgl_offset = 16;
tr_9k_cmd->sgl_entries = 1;
/* create the CDB here */
tr_9k_cmd->cdb[0] = INQUIRY;
tr_9k_cmd->cdb[1] = ((lunid << 5) & 0x0e);
tr_9k_cmd->cdb[4] = 255;
/* XXXX setup page data no lun device
* it seems 9000 series does not indicate
* NOTPRESENT - need more investigation
*/
((struct scsipi_inquiry_data *)tr->tr_data)->device =
SID_QUAL_LU_NOTPRESENT;
error = twa_immediate_request(tr, TWA_REQUEST_TIMEOUT_PERIOD);
if (error != 0)
return (error);
if (((struct scsipi_inquiry_data *)tr->tr_data)->device ==
SID_QUAL_LU_NOTPRESENT)
error = 1;
return (error);
}
static int
twa_print_inquiry_data(struct twa_softc *sc, struct scsipi_inquiry_data *scsipi)
{
printf("%s: %s\n", device_xname(&sc->twa_dv), scsipi->vendor);
return (1);
}
static uint64_t
twa_read_capacity(struct twa_request *tr, int lunid)
{
int error;
struct twa_command_9k *tr_9k_cmd;
uint64_t array_size = 0LL;
if (tr->tr_data == NULL)
return (ENOMEM);
memset(tr->tr_data, 0, TWA_SECTOR_SIZE);
tr->tr_length = TWA_SECTOR_SIZE;
tr->tr_cmd_pkt_type = TWA_CMD_PKT_TYPE_9K;
tr->tr_flags |= TWA_CMD_DATA_OUT;
tr_9k_cmd = &tr->tr_command->command.cmd_pkt_9k;
tr_9k_cmd->command.opcode = TWA_OP_EXECUTE_SCSI_COMMAND;
tr_9k_cmd->unit = lunid;
tr_9k_cmd->request_id = tr->tr_request_id;
tr_9k_cmd->status = 0;
tr_9k_cmd->sgl_offset = 16;
tr_9k_cmd->sgl_entries = 1;
/* create the CDB here */
tr_9k_cmd->cdb[0] = READ_CAPACITY_16;
tr_9k_cmd->cdb[1] = ((lunid << 5) & 0x0e) | SRC16_SERVICE_ACTION;
error = twa_immediate_request(tr, TWA_REQUEST_TIMEOUT_PERIOD);
if (error == 0) {
#if BYTE_ORDER == BIG_ENDIAN
array_size = bswap64(_8btol(
((struct scsipi_read_capacity_16_data *)tr->tr_data->addr) + 1);
#else
array_size = _8btol(((struct scsipi_read_capacity_16_data *)
tr->tr_data)->addr) + 1;
#endif
}
return (array_size);
}
static int
twa_request_sense(struct twa_request *tr, int lunid)
{
int error = 1;
struct twa_command_9k *tr_9k_cmd;
if (tr->tr_data == NULL)
return (error);
memset(tr->tr_data, 0, TWA_SECTOR_SIZE);
tr->tr_length = TWA_SECTOR_SIZE;
tr->tr_cmd_pkt_type = TWA_CMD_PKT_TYPE_9K;
tr->tr_flags |= TWA_CMD_DATA_OUT;
tr_9k_cmd = &tr->tr_command->command.cmd_pkt_9k;
tr_9k_cmd->command.opcode = TWA_OP_EXECUTE_SCSI_COMMAND;
tr_9k_cmd->unit = lunid;
tr_9k_cmd->request_id = tr->tr_request_id;
tr_9k_cmd->status = 0;
tr_9k_cmd->sgl_offset = 16;
tr_9k_cmd->sgl_entries = 1;
/* create the CDB here */
tr_9k_cmd->cdb[0] = SCSI_REQUEST_SENSE;
tr_9k_cmd->cdb[1] = ((lunid << 5) & 0x0e);
tr_9k_cmd->cdb[4] = 255;
/*XXX AEN notification called in interrupt context
* so just queue the request. Return as quickly
* as possible from interrupt
*/
if ((tr->tr_flags & TWA_CMD_AEN) != 0)
error = twa_map_request(tr);
else
error = twa_immediate_request(tr, TWA_REQUEST_TIMEOUT_PERIOD);
return (error);
}
static int
twa_alloc_req_pkts(struct twa_softc *sc, int num_reqs)
{
struct twa_request *tr;
struct twa_command_packet *tc;
bus_dma_segment_t seg;
size_t max_segs, max_xfer;
int i, rv, rseg, size;
if ((sc->sc_units = malloc(sc->sc_nunits *
sizeof(struct twa_drive), M_DEVBUF, M_NOWAIT|M_ZERO)) == NULL)
return(ENOMEM);
if ((sc->twa_req_buf = malloc(num_reqs * sizeof(struct twa_request),
M_DEVBUF, M_NOWAIT)) == NULL)
return(ENOMEM);
size = num_reqs * sizeof(struct twa_command_packet);
/* Allocate memory for cmd pkts. */
if ((rv = bus_dmamem_alloc(sc->twa_dma_tag,
size, PAGE_SIZE, 0, &seg,
1, &rseg, BUS_DMA_NOWAIT)) != 0){
aprint_error_dev(&sc->twa_dv, "unable to allocate "
"command packets, rv = %d\n", rv);
return (ENOMEM);
}
if ((rv = bus_dmamem_map(sc->twa_dma_tag,
&seg, rseg, size, (void **)&sc->twa_cmds,
BUS_DMA_NOWAIT | BUS_DMA_COHERENT)) != 0) {
aprint_error_dev(&sc->twa_dv, "unable to map commands, rv = %d\n", rv);
return (1);
}
if ((rv = bus_dmamap_create(sc->twa_dma_tag,
size, num_reqs, size,
0, BUS_DMA_NOWAIT, &sc->twa_cmd_map)) != 0) {
aprint_error_dev(&sc->twa_dv, "unable to create command DMA map, "
"rv = %d\n", rv);
return (ENOMEM);
}
if ((rv = bus_dmamap_load(sc->twa_dma_tag, sc->twa_cmd_map,
sc->twa_cmds, size, NULL,
BUS_DMA_NOWAIT)) != 0) {
aprint_error_dev(&sc->twa_dv, "unable to load command DMA map, "
"rv = %d\n", rv);
return (1);
}
if ((uintptr_t)sc->twa_cmds % TWA_ALIGNMENT) {
aprint_error_dev(&sc->twa_dv, "DMA map memory not aligned on %d boundary\n", TWA_ALIGNMENT);
return (1);
}
tc = sc->twa_cmd_pkt_buf = (struct twa_command_packet *)sc->twa_cmds;
sc->twa_cmd_pkt_phys = sc->twa_cmd_map->dm_segs[0].ds_addr;
memset(sc->twa_req_buf, 0, num_reqs * sizeof(struct twa_request));
memset(sc->twa_cmd_pkt_buf, 0,
num_reqs * sizeof(struct twa_command_packet));
sc->sc_twa_request = sc->twa_req_buf;
max_segs = twa_get_maxsegs();
max_xfer = twa_get_maxxfer(max_segs);
for (i = 0; i < num_reqs; i++, tc++) {
tr = &(sc->twa_req_buf[i]);
tr->tr_command = tc;
tr->tr_cmd_phys = sc->twa_cmd_pkt_phys +
(i * sizeof(struct twa_command_packet));
tr->tr_request_id = i;
tr->tr_sc = sc;
/*
* Create a map for data buffers. maxsize (256 * 1024) used in
* bus_dma_tag_create above should suffice the bounce page needs
* for data buffers, since the max I/O size we support is 128KB.
* If we supported I/O's bigger than 256KB, we would have to
* create a second dma_tag, with the appropriate maxsize.
*/
if ((rv = bus_dmamap_create(sc->twa_dma_tag,
max_xfer, max_segs, 1, 0, BUS_DMA_NOWAIT,
&tr->tr_dma_map)) != 0) {
aprint_error_dev(&sc->twa_dv, "unable to create command "
"DMA map, rv = %d\n", rv);
return (ENOMEM);
}
/* Insert request into the free queue. */
if (i != 0) {
sc->twa_lookup[i] = tr;
twa_release_request(tr);
} else
tr->tr_flags |= TWA_CMD_AEN;
}
return(0);
}
static void
twa_recompute_openings(struct twa_softc *sc)
{
struct twa_drive *td;
int unit;
int openings;
uint64_t total_size;
total_size = 0;
for (unit = 0; unit < sc->sc_nunits; unit++) {
td = &sc->sc_units[unit];
total_size += td->td_size;
}
for (unit = 0; unit < sc->sc_nunits; unit++) {
td = &sc->sc_units[unit];
/*
* In theory, TWA_Q_LENGTH - 1 should be usable, but
* keep one additional ccb for internal commands.
* This makes the controller more reliable under load.
*/
if (total_size > 0) {
openings = (TWA_Q_LENGTH - 2) * td->td_size / total_size;
} else
openings = 0;
if (openings == td->td_openings)
continue;
td->td_openings = openings;
#ifdef TWA_DEBUG
printf("%s: unit %d openings %d\n",
device_xname(&sc->twa_dv), unit, openings);
#endif
if (td->td_dev != NULL)
(*td->td_callbacks->tcb_openings)(td->td_dev, td->td_openings);
}
}
static int
twa_request_bus_scan(struct twa_softc *sc)
{
struct twa_drive *td;
struct twa_request *tr;
struct twa_attach_args twaa;
int locs[TWACF_NLOCS];
int s, unit;
s = splbio();
for (unit = 0; unit < sc->sc_nunits; unit++) {
if ((tr = twa_get_request(sc, 0)) == NULL) {
splx(s);
return (EIO);
}
tr->tr_cmd_pkt_type |= TWA_CMD_PKT_TYPE_INTERNAL;
tr->tr_data = malloc(TWA_SECTOR_SIZE, M_DEVBUF, M_NOWAIT);
if (tr->tr_data == NULL) {
twa_release_request(tr);
splx(s);
return (ENOMEM);
}
td = &sc->sc_units[unit];
if (twa_inquiry(tr, unit) == 0) {
if (td->td_dev == NULL) {
twa_print_inquiry_data(sc,
((struct scsipi_inquiry_data *)tr->tr_data));
sc->sc_units[unit].td_size =
twa_read_capacity(tr, unit);
twaa.twaa_unit = unit;
twa_recompute_openings(sc);
locs[TWACF_UNIT] = unit;
sc->sc_units[unit].td_dev =
config_found_sm_loc(&sc->twa_dv, "twa",
locs, &twaa, twa_print, config_stdsubmatch);
}
} else {
if (td->td_dev != NULL) {
(void) config_detach(td->td_dev, DETACH_FORCE);
td->td_dev = NULL;
td->td_size = 0;
twa_recompute_openings(sc);
}
}
free(tr->tr_data, M_DEVBUF);
twa_release_request(tr);
}
splx(s);
return (0);
}
#ifdef DIAGNOSTIC
static inline void
twa_check_busy_q(struct twa_request *tr)
{
struct twa_request *rq;
struct twa_softc *sc = tr->tr_sc;
TAILQ_FOREACH(rq, &sc->twa_busy, tr_link) {
if (tr->tr_request_id == rq->tr_request_id) {
panic("cannot submit same request more than once");
} else if (tr->bp == rq->bp && tr->bp != 0) {
/* XXX A check for 0 for the buf ptr is needed to
* guard against ioctl requests with a buf ptr of
* 0 and also aen notifications. Looking for
* external cmds only.
*/
panic("cannot submit same buf more than once");
} else {
/* Empty else statement */
}
}
}
#endif
static int
twa_start(struct twa_request *tr)
{
struct twa_softc *sc = tr->tr_sc;
uint32_t status_reg;
int s;
int error;
s = splbio();
/*
* The 9650 has a bug in the detection of the full queue condition.
* If a write operation has filled the queue and is directly followed
* by a status read, it sometimes doesn't return the correct result.
* To work around this, the upper 32bit are written first.
* This effectively serialises the hardware, but does not change
* the state of the queue.
*/
if (sc->sc_product_id == PCI_PRODUCT_3WARE_9650) {
/* Write lower 32 bits of address */
TWA_WRITE_9650_COMMAND_QUEUE_LOW(sc, tr->tr_cmd_phys +
sizeof(struct twa_command_header));
}
/* Check to see if we can post a command. */
status_reg = twa_inl(sc, TWA_STATUS_REGISTER_OFFSET);
if ((error = twa_check_ctlr_state(sc, status_reg)))
goto out;
if (status_reg & TWA_STATUS_COMMAND_QUEUE_FULL) {
if (tr->tr_status != TWA_CMD_PENDING) {
tr->tr_status = TWA_CMD_PENDING;
TAILQ_INSERT_TAIL(&tr->tr_sc->twa_pending,
tr, tr_link);
}
twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET,
TWA_CONTROL_UNMASK_COMMAND_INTERRUPT);
error = EBUSY;
} else {
bus_dmamap_sync(sc->twa_dma_tag, sc->twa_cmd_map,
(char *)tr->tr_command - (char *)sc->twa_cmds,
sizeof(struct twa_command_packet),
BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
if (sc->sc_product_id == PCI_PRODUCT_3WARE_9650) {
/*
* Cmd queue is not full. Post the command to 9650
* by writing upper 32 bits of address.
*/
TWA_WRITE_9650_COMMAND_QUEUE_HIGH(sc, tr->tr_cmd_phys +
sizeof(struct twa_command_header));
} else {
/* Cmd queue is not full. Post the command. */
TWA_WRITE_COMMAND_QUEUE(sc, tr->tr_cmd_phys +
sizeof(struct twa_command_header));
}
/* Mark the request as currently being processed. */
tr->tr_status = TWA_CMD_BUSY;
#ifdef DIAGNOSTIC
twa_check_busy_q(tr);
#endif
/* Move the request into the busy queue. */
TAILQ_INSERT_TAIL(&tr->tr_sc->twa_busy, tr, tr_link);
}
out:
splx(s);
return(error);
}
static int
twa_drain_response_queue(struct twa_softc *sc)
{
union twa_response_queue rq;
uint32_t status_reg;
for (;;) {
status_reg = twa_inl(sc, TWA_STATUS_REGISTER_OFFSET);
if (twa_check_ctlr_state(sc, status_reg))
return(1);
if (status_reg & TWA_STATUS_RESPONSE_QUEUE_EMPTY)
return(0); /* no more response queue entries */
rq.value = twa_inl(sc, TWA_RESPONSE_QUEUE_OFFSET);
}
}
/*
* twa_drain_response_queue_large:
*
* specific to the 9550 and 9650 controller to remove requests.
*
* Removes all requests from "large" response queue on the 9550 controller.
* This procedure is called as part of the 9550 controller reset sequence.
*/
static int
twa_drain_response_queue_large(struct twa_softc *sc, uint32_t timeout)
{
uint32_t start_time = 0, end_time;
uint32_t response = 0;
if (sc->sc_product_id == PCI_PRODUCT_3WARE_9550 ||
sc->sc_product_id == PCI_PRODUCT_3WARE_9650 ) {
start_time = 0;
end_time = (timeout * TWA_MICROSECOND);
while ((response &
TWA_9550SX_DRAIN_COMPLETE) != TWA_9550SX_DRAIN_COMPLETE) {
response = twa_inl(sc, TWA_RESPONSE_QUEUE_LARGE_OFFSET);
if (start_time >= end_time)
return (1);
DELAY(1);
start_time++;
}
/* P-chip delay */
DELAY(500000);
}
return (0);
}
static void
twa_drain_busy_queue(struct twa_softc *sc)
{
struct twa_request *tr;
/* Walk the busy queue. */
while ((tr = TAILQ_FIRST(&sc->twa_busy)) != NULL) {
TAILQ_REMOVE(&sc->twa_busy, tr, tr_link);
twa_unmap_request(tr);
if ((tr->tr_cmd_pkt_type & TWA_CMD_PKT_TYPE_INTERNAL) ||
(tr->tr_cmd_pkt_type & TWA_CMD_PKT_TYPE_IOCTL)) {
/* It's an internal/ioctl request. Simply free it. */
if (tr->tr_data)
free(tr->tr_data, M_DEVBUF);
twa_release_request(tr);
} else {
/* It's a SCSI request. Complete it. */
tr->tr_command->command.cmd_pkt_9k.status = EIO;
if (tr->tr_callback)
tr->tr_callback(tr);
}
}
}
static int
twa_drain_pending_queue(struct twa_softc *sc)
{
struct twa_request *tr;
int s, error = 0;
/*
* Pull requests off the pending queue, and submit them.
*/
s = splbio();
while ((tr = TAILQ_FIRST(&sc->twa_pending)) != NULL) {
TAILQ_REMOVE(&sc->twa_pending, tr, tr_link);
if ((error = twa_start(tr))) {
if (error == EBUSY) {
tr->tr_status = TWA_CMD_PENDING;
/* queue at the head */
TAILQ_INSERT_HEAD(&tr->tr_sc->twa_pending,
tr, tr_link);
error = 0;
break;
} else {
if (tr->tr_flags & TWA_CMD_SLEEP_ON_REQUEST) {
tr->tr_error = error;
tr->tr_callback(tr);
error = EIO;
}
}
}
}
splx(s);
return(error);
}
static int
twa_drain_aen_queue(struct twa_softc *sc)
{
int s, error = 0;
struct twa_request *tr;
struct twa_command_header *cmd_hdr;
struct timeval t1;
uint32_t timeout;
for (;;) {
if ((tr = twa_get_request(sc, 0)) == NULL) {
error = EIO;
break;
}
tr->tr_cmd_pkt_type |= TWA_CMD_PKT_TYPE_INTERNAL;
tr->tr_callback = NULL;
tr->tr_data = malloc(TWA_SECTOR_SIZE, M_DEVBUF, M_NOWAIT);
if (tr->tr_data == NULL) {
error = 1;
goto out;
}
if (twa_request_sense(tr, 0) != 0) {
error = 1;
break;
}
timeout = (1000/*ms*/ * 100/*us*/ * TWA_REQUEST_TIMEOUT_PERIOD);
microtime(&t1);
timeout += t1.tv_usec;
do {
s = splbio();
twa_done(tr->tr_sc);
splx(s);
if (tr->tr_status != TWA_CMD_BUSY)
break;
microtime(&t1);
} while (t1.tv_usec <= timeout);
if (tr->tr_status != TWA_CMD_COMPLETE) {
error = ETIMEDOUT;
break;
}
if ((error = tr->tr_command->command.cmd_pkt_9k.status))
break;
cmd_hdr = (struct twa_command_header *)(tr->tr_data);
if ((cmd_hdr->status_block.error) /* aen_code */
== TWA_AEN_QUEUE_EMPTY)
break;
(void)twa_enqueue_aen(sc, cmd_hdr);
free(tr->tr_data, M_DEVBUF);
twa_release_request(tr);
}
out:
if (tr) {
if (tr->tr_data)
free(tr->tr_data, M_DEVBUF);
twa_release_request(tr);
}
return(error);
}
#if 0
static void
twa_check_response_q(struct twa_request *tr, int clear)
{
int j;
static int i = 0;
static struct twa_request *req = 0;
static struct buf *hist[255];
if (clear) {
i = 0;
for (j = 0; j < 255; j++)
hist[j] = 0;
return;
}
if (req == 0)
req = tr;
if ((tr->tr_cmd_pkt_type & TWA_CMD_PKT_TYPE_EXTERNAL) != 0) {
XXX this is bogus ! req can't be anything else but tr !
if (req->tr_request_id == tr->tr_request_id)
panic("req id: %d on controller queue twice",
tr->tr_request_id);
for (j = 0; j < i; j++)
if (tr->bp == hist[j])
panic("req id: %d buf found twice",
tr->tr_request_id);
}
req = tr;
hist[i++] = req->bp;
}
#endif
static int
twa_done(struct twa_softc *sc)
{
union twa_response_queue rq;
struct twa_request *tr;
int rv = 0;
uint32_t status_reg;
for (;;) {
status_reg = twa_inl(sc, TWA_STATUS_REGISTER_OFFSET);
if ((rv = twa_check_ctlr_state(sc, status_reg)))
break;
if (status_reg & TWA_STATUS_RESPONSE_QUEUE_EMPTY)
break;
/* Response queue is not empty. */
rq.value = twa_inl(sc, TWA_RESPONSE_QUEUE_OFFSET);
tr = sc->sc_twa_request + rq.u.response_id;
#if 0
twa_check_response_q(tr, 0);
#endif
/* Unmap the command packet, and any associated data buffer. */
twa_unmap_request(tr);
tr->tr_status = TWA_CMD_COMPLETE;
TAILQ_REMOVE(&tr->tr_sc->twa_busy, tr, tr_link);
if (tr->tr_callback)
tr->tr_callback(tr);
}
(void)twa_drain_pending_queue(sc);
#if 0
twa_check_response_q(NULL, 1);
#endif
return(rv);
}
/*
* Function name: twa_init_ctlr
* Description: Establishes a logical connection with the controller.
* If bundled with firmware, determines whether or not
* the driver is compatible with the firmware on the
* controller, before proceeding to work with it.
*
* Input: sc -- ptr to per ctlr structure
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
static int
twa_init_ctlr(struct twa_softc *sc)
{
uint16_t fw_on_ctlr_srl = 0;
uint16_t fw_on_ctlr_arch_id = 0;
uint16_t fw_on_ctlr_branch = 0;
uint16_t fw_on_ctlr_build = 0;
uint32_t init_connect_result = 0;
int error = 0;
/* Wait for the controller to become ready. */
if (twa_wait_status(sc, TWA_STATUS_MICROCONTROLLER_READY,
TWA_REQUEST_TIMEOUT_PERIOD)) {
return(ENXIO);
}
/* Drain the response queue. */
if (twa_drain_response_queue(sc))
return(1);
/* Establish a logical connection with the controller. */
if ((error = twa_init_connection(sc, TWA_INIT_MESSAGE_CREDITS,
TWA_EXTENDED_INIT_CONNECT, TWA_CURRENT_FW_SRL,
TWA_9000_ARCH_ID, TWA_CURRENT_FW_BRANCH,
TWA_CURRENT_FW_BUILD, &fw_on_ctlr_srl,
&fw_on_ctlr_arch_id, &fw_on_ctlr_branch,
&fw_on_ctlr_build, &init_connect_result))) {
return(error);
}
twa_drain_aen_queue(sc);
/* Set controller state to initialized. */
sc->twa_state &= ~TWA_STATE_SHUTDOWN;
return(0);
}
static int
twa_setup(struct twa_softc *sc)
{
struct tw_cl_event_packet *aen_queue;
uint32_t i = 0;
int error = 0;
/* Initialize request queues. */
TAILQ_INIT(&sc->twa_free);
TAILQ_INIT(&sc->twa_busy);
TAILQ_INIT(&sc->twa_pending);
sc->twa_sc_flags = 0;
if (twa_alloc_req_pkts(sc, TWA_Q_LENGTH)) {
return(ENOMEM);
}
/* Allocate memory for the AEN queue. */
if ((aen_queue = malloc(sizeof(struct tw_cl_event_packet) *
TWA_Q_LENGTH, M_DEVBUF, M_WAITOK)) == NULL) {
/*
* This should not cause us to return error. We will only be
* unable to support AEN's. But then, we will have to check
* time and again to see if we can support AEN's, if we
* continue. So, we will just return error.
*/
return (ENOMEM);
}
/* Initialize the aen queue. */
memset(aen_queue, 0, sizeof(struct tw_cl_event_packet) * TWA_Q_LENGTH);
for (i = 0; i < TWA_Q_LENGTH; i++)
sc->twa_aen_queue[i] = &(aen_queue[i]);
twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET,
TWA_CONTROL_DISABLE_INTERRUPTS);
/* Initialize the controller. */
if ((error = twa_init_ctlr(sc))) {
/* Soft reset the controller, and try one more time. */
printf("%s: controller initialization failed. "
"Retrying initialization\n", device_xname(&sc->twa_dv));
if ((error = twa_soft_reset(sc)) == 0)
error = twa_init_ctlr(sc);
}
twa_describe_controller(sc);
error = twa_request_bus_scan(sc);
twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET,
TWA_CONTROL_CLEAR_ATTENTION_INTERRUPT |
TWA_CONTROL_UNMASK_RESPONSE_INTERRUPT |
TWA_CONTROL_ENABLE_INTERRUPTS);
return (error);
}
void *twa_sdh;
static void
twa_attach(struct device *parent, struct device *self, void *aux)
{
struct pci_attach_args *pa;
struct twa_softc *sc;
pci_chipset_tag_t pc;
pcireg_t csr;
pci_intr_handle_t ih;
const char *intrstr;
struct ctlname ctlnames[] = CTL_NAMES;
const struct sysctlnode *node;
int i;
bool use_64bit;
sc = (struct twa_softc *)self;
pa = aux;
pc = pa->pa_pc;
sc->pc = pa->pa_pc;
sc->tag = pa->pa_tag;
aprint_naive(": RAID controller\n");
aprint_normal(": 3ware Apache\n");
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_3WARE_9000) {
sc->sc_nunits = TWA_MAX_UNITS;
use_64bit = false;
if (pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_IO, 0,
&sc->twa_bus_iot, &sc->twa_bus_ioh, NULL, NULL)) {
aprint_error_dev(&sc->twa_dv, "can't map i/o space\n");
return;
}
} else if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_3WARE_9550) {
sc->sc_nunits = TWA_MAX_UNITS;
use_64bit = true;
if (pci_mapreg_map(pa, PCI_MAPREG_START + 0x08,
PCI_MAPREG_MEM_TYPE_64BIT, 0, &sc->twa_bus_iot,
&sc->twa_bus_ioh, NULL, NULL)) {
aprint_error_dev(&sc->twa_dv, "can't map mem space\n");
return;
}
} else if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_3WARE_9650) {
sc->sc_nunits = TWA_9650_MAX_UNITS;
use_64bit = true;
if (pci_mapreg_map(pa, PCI_MAPREG_START + 0x08,
PCI_MAPREG_MEM_TYPE_64BIT, 0, &sc->twa_bus_iot,
&sc->twa_bus_ioh, NULL, NULL)) {
aprint_error_dev(&sc->twa_dv, "can't map mem space\n");
return;
}
} else if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_3WARE_9690) {
sc->sc_nunits = TWA_9690_MAX_UNITS;
use_64bit = true;
if (pci_mapreg_map(pa, PCI_MAPREG_START + 0x08,
PCI_MAPREG_MEM_TYPE_64BIT, 0, &sc->twa_bus_iot,
&sc->twa_bus_ioh, NULL, NULL)) {
aprint_error_dev(&sc->twa_dv, "can't map mem space\n");
return;
}
} else {
sc->sc_nunits = 0;
use_64bit = false;
aprint_error_dev(&sc->twa_dv, "product id 0x%02x not recognized\n",
PCI_PRODUCT(pa->pa_id));
return;
}
if (pci_dma64_available(pa) && use_64bit) {
aprint_verbose_dev(self, "64bit DMA addressing active");
sc->twa_dma_tag = pa->pa_dmat64;
} else {
sc->twa_dma_tag = pa->pa_dmat;
}
sc->sc_product_id = PCI_PRODUCT(pa->pa_id);
/* Enable the device. */
csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
csr | PCI_COMMAND_MASTER_ENABLE);
/* Map and establish the interrupt. */
if (pci_intr_map(pa, &ih)) {
aprint_error_dev(&sc->twa_dv, "can't map interrupt\n");
return;
}
intrstr = pci_intr_string(pc, ih);
sc->twa_ih = pci_intr_establish(pc, ih, IPL_BIO, twa_intr, sc);
if (sc->twa_ih == NULL) {
aprint_error_dev(&sc->twa_dv, "can't establish interrupt%s%s\n",
(intrstr) ? " at " : "",
(intrstr) ? intrstr : "");
return;
}
if (intrstr != NULL)
aprint_normal_dev(&sc->twa_dv, "interrupting at %s\n",
intrstr);
twa_setup(sc);
if (twa_sdh == NULL)
twa_sdh = shutdownhook_establish(twa_shutdown, NULL);
/* sysctl set-up for 3ware cli */
if (sysctl_createv(NULL, 0, NULL, NULL,
CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw",
NULL, NULL, 0, NULL, 0,
CTL_HW, CTL_EOL) != 0) {
aprint_error_dev(&sc->twa_dv, "could not create %s sysctl node\n",
ctlnames[CTL_HW].ctl_name);
return;
}
if (sysctl_createv(NULL, 0, NULL, &node,
0, CTLTYPE_NODE, device_xname(&sc->twa_dv),
SYSCTL_DESCR("twa driver information"),
NULL, 0, NULL, 0,
CTL_HW, CTL_CREATE, CTL_EOL) != 0) {
aprint_error_dev(&sc->twa_dv, "could not create %s.%s sysctl node\n",
ctlnames[CTL_HW].ctl_name,
device_xname(&sc->twa_dv));
return;
}
if ((i = sysctl_createv(NULL, 0, NULL, NULL,
0, CTLTYPE_STRING, "driver_version",
SYSCTL_DESCR("twa driver version"),
NULL, 0, &twaver, 0,
CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL))
!= 0) {
aprint_error_dev(&sc->twa_dv, "could not create %s.%s.driver_version sysctl\n",
ctlnames[CTL_HW].ctl_name,
device_xname(&sc->twa_dv));
return;
}
return;
}
static void
twa_shutdown(void *arg)
{
extern struct cfdriver twa_cd;
struct twa_softc *sc;
int i, rv, unit;
for (i = 0; i < twa_cd.cd_ndevs; i++) {
if ((sc = device_lookup_private(&twa_cd, i)) == NULL)
continue;
for (unit = 0; unit < sc->sc_nunits; unit++)
if (sc->sc_units[unit].td_dev != NULL)
(void) config_detach(sc->sc_units[unit].td_dev,
DETACH_FORCE | DETACH_QUIET);
twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET,
TWA_CONTROL_DISABLE_INTERRUPTS);
/* Let the controller know that we are going down. */
rv = twa_init_connection(sc, TWA_SHUTDOWN_MESSAGE_CREDITS,
0, 0, 0, 0, 0,
NULL, NULL, NULL, NULL, NULL);
}
}
void
twa_register_callbacks(struct twa_softc *sc, int unit,
const struct twa_callbacks *tcb)
{
sc->sc_units[unit].td_callbacks = tcb;
}
/*
* Print autoconfiguration message for a sub-device
*/
static int
twa_print(void *aux, const char *pnp)
{
struct twa_attach_args *twaa;
twaa = aux;
if (pnp !=NULL)
aprint_normal("block device at %s\n", pnp);
aprint_normal(" unit %d\n", twaa->twaa_unit);
return (UNCONF);
}
static void
twa_fillin_sgl(struct twa_sg *sgl, bus_dma_segment_t *segs, int nsegments)
{
int i;
for (i = 0; i < nsegments; i++) {
sgl[i].address = segs[i].ds_addr;
sgl[i].length = (uint32_t)(segs[i].ds_len);
}
}
static int
twa_submit_io(struct twa_request *tr)
{
int error;
if ((error = twa_start(tr))) {
if (error == EBUSY)
error = 0; /* request is in the pending queue */
else {
tr->tr_error = error;
}
}
return(error);
}
/*
* Function name: twa_setup_data_dmamap
* Description: Callback of bus_dmamap_load for the buffer associated
* with data. Updates the cmd pkt (size/sgl_entries
* fields, as applicable) to reflect the number of sg
* elements.
*
* Input: arg -- ptr to request pkt
* segs -- ptr to a list of segment descriptors
* nsegments--# of segments
* error -- 0 if no errors encountered before callback,
* non-zero if errors were encountered
* Output: None
* Return value: None
*/
static int
twa_setup_data_dmamap(void *arg, bus_dma_segment_t *segs, int nsegments)
{
struct twa_request *tr = (struct twa_request *)arg;
struct twa_command_packet *cmdpkt = tr->tr_command;
struct twa_command_9k *cmd9k;
union twa_command_7k *cmd7k;
uint8_t sgl_offset;
int error;
if (tr->tr_cmd_pkt_type & TWA_CMD_PKT_TYPE_9K) {
cmd9k = &(cmdpkt->command.cmd_pkt_9k);
twa_fillin_sgl(&(cmd9k->sg_list[0]), segs, nsegments);
cmd9k->sgl_entries += nsegments - 1;
} else {
/* It's a 7000 command packet. */
cmd7k = &(cmdpkt->command.cmd_pkt_7k);
if ((sgl_offset = cmdpkt->command.cmd_pkt_7k.generic.sgl_offset))
twa_fillin_sgl((struct twa_sg *)
(((uint32_t *)cmd7k) + sgl_offset),
segs, nsegments);
/* Modify the size field, based on sg address size. */
cmd7k->generic.size +=
((TWA_64BIT_ADDRESSES ? 3 : 2) * nsegments);
}
if (tr->tr_flags & TWA_CMD_DATA_IN)
bus_dmamap_sync(tr->tr_sc->twa_dma_tag, tr->tr_dma_map, 0,
tr->tr_length, BUS_DMASYNC_PREWRITE);
if (tr->tr_flags & TWA_CMD_DATA_OUT) {
/*
* If we're using an alignment buffer, and we're
* writing data, copy the real data out.
*/
if (tr->tr_flags & TWA_CMD_DATA_COPY_NEEDED)
memcpy(tr->tr_data, tr->tr_real_data,
tr->tr_real_length);
bus_dmamap_sync(tr->tr_sc->twa_dma_tag, tr->tr_dma_map, 0,
tr->tr_length, BUS_DMASYNC_PREREAD);
}
error = twa_submit_io(tr);
if (error) {
twa_unmap_request(tr);
/*
* If the caller had been returned EINPROGRESS, and he has
* registered a callback for handling completion, the callback
* will never get called because we were unable to submit the
* request. So, free up the request right here.
*/
if (tr->tr_callback)
twa_release_request(tr);
}
return (error);
}
/*
* Function name: twa_map_request
* Description: Maps a cmd pkt and data associated with it, into
* DMA'able memory.
*
* Input: tr -- ptr to request pkt
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
int
twa_map_request(struct twa_request *tr)
{
struct twa_softc *sc = tr->tr_sc;
int s, rv;
/* If the command involves data, map that too. */
if (tr->tr_data != NULL) {
if (((u_long)tr->tr_data & (511)) != 0) {
tr->tr_flags |= TWA_CMD_DATA_COPY_NEEDED;
tr->tr_real_data = tr->tr_data;
tr->tr_real_length = tr->tr_length;
s = splvm();
tr->tr_data = (void *)uvm_km_alloc(kmem_map,
tr->tr_length, 512, UVM_KMF_NOWAIT|UVM_KMF_WIRED);
splx(s);
if (tr->tr_data == NULL) {
tr->tr_data = tr->tr_real_data;
tr->tr_length = tr->tr_real_length;
return(ENOMEM);
}
if ((tr->tr_flags & TWA_CMD_DATA_IN) != 0)
memcpy(tr->tr_data, tr->tr_real_data,
tr->tr_length);
}
/*
* Map the data buffer into bus space and build the S/G list.
*/
rv = bus_dmamap_load(sc->twa_dma_tag, tr->tr_dma_map,
tr->tr_data, tr->tr_length, NULL,
BUS_DMA_NOWAIT | BUS_DMA_STREAMING);
if (rv != 0) {
if ((tr->tr_flags & TWA_CMD_DATA_COPY_NEEDED) != 0) {
s = splvm();
uvm_km_free(kmem_map, (vaddr_t)tr->tr_data,
tr->tr_length, UVM_KMF_WIRED);
splx(s);
}
return (rv);
}
if ((rv = twa_setup_data_dmamap(tr,
tr->tr_dma_map->dm_segs,
tr->tr_dma_map->dm_nsegs))) {
if (tr->tr_flags & TWA_CMD_DATA_COPY_NEEDED) {
s = splvm();
uvm_km_free(kmem_map, (vaddr_t)tr->tr_data,
tr->tr_length, UVM_KMF_WIRED);
splx(s);
tr->tr_data = tr->tr_real_data;
tr->tr_length = tr->tr_real_length;
}
}
} else
if ((rv = twa_submit_io(tr)))
twa_unmap_request(tr);
return (rv);
}
/*
* Function name: twa_intr
* Description: Interrupt handler. Determines the kind of interrupt,
* and calls the appropriate handler.
*
* Input: sc -- ptr to per ctlr structure
* Output: None
* Return value: None
*/
static int
twa_intr(void *arg)
{
int caught, s, rv;
struct twa_softc *sc;
uint32_t status_reg;
sc = (struct twa_softc *)arg;
caught = 0;
/* Collect current interrupt status. */
status_reg = twa_inl(sc, TWA_STATUS_REGISTER_OFFSET);
if (twa_check_ctlr_state(sc, status_reg)) {
caught = 1;
goto bail;
}
/* Dispatch based on the kind of interrupt. */
if (status_reg & TWA_STATUS_HOST_INTERRUPT) {
twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET,
TWA_CONTROL_CLEAR_HOST_INTERRUPT);
caught = 1;
}
if ((status_reg & TWA_STATUS_ATTENTION_INTERRUPT) != 0) {
twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET,
TWA_CONTROL_CLEAR_ATTENTION_INTERRUPT);
rv = twa_fetch_aen(sc);
#ifdef DIAGNOSTIC
if (rv != 0)
printf("%s: unable to retrieve AEN (%d)\n",
device_xname(&sc->twa_dv), rv);
#endif
caught = 1;
}
if (status_reg & TWA_STATUS_COMMAND_INTERRUPT) {
/* Start any requests that might be in the pending queue. */
twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET,
TWA_CONTROL_MASK_COMMAND_INTERRUPT);
(void)twa_drain_pending_queue(sc);
caught = 1;
}
if (status_reg & TWA_STATUS_RESPONSE_INTERRUPT) {
s = splbio();
twa_done(sc);
splx(s);
caught = 1;
}
bail:
return (caught);
}
/*
* Accept an open operation on the control device.
*/
static int
twaopen(dev_t dev, int flag, int mode, struct lwp *l)
{
struct twa_softc *twa;
if ((twa = device_lookup_private(&twa_cd, minor(dev))) == NULL)
return (ENXIO);
if ((twa->twa_sc_flags & TWA_STATE_OPEN) != 0)
return (EBUSY);
twa->twa_sc_flags |= TWA_STATE_OPEN;
return (0);
}
/*
* Accept the last close on the control device.
*/
static int
twaclose(dev_t dev, int flag, int mode,
struct lwp *l)
{
struct twa_softc *twa;
twa = device_lookup_private(&twa_cd, minor(dev));
twa->twa_sc_flags &= ~TWA_STATE_OPEN;
return (0);
}
/*
* Function name: twaioctl
* Description: ioctl handler.
*
* Input: sc -- ptr to per ctlr structure
* cmd -- ioctl cmd
* buf -- ptr to buffer in kernel memory, which is
* a copy of the input buffer in user-space
* Output: buf -- ptr to buffer in kernel memory, which will
* be copied of the output buffer in user-space
* Return value: 0 -- success
* non-zero-- failure
*/
static int
twaioctl(dev_t dev, u_long cmd, void *data, int flag,
struct lwp *l)
{
struct twa_softc *sc;
struct twa_ioctl_9k *user_buf = (struct twa_ioctl_9k *)data;
struct tw_cl_event_packet event_buf;
struct twa_request *tr = 0;
int32_t event_index = 0;
int32_t start_index;
int s, error = 0;
sc = device_lookup_private(&twa_cd, minor(dev));
switch (cmd) {
case TW_OSL_IOCTL_FIRMWARE_PASS_THROUGH:
{
struct twa_command_packet *cmdpkt;
uint32_t data_buf_size_adjusted;
/* Get a request packet */
tr = twa_get_request_wait(sc, 0);
KASSERT(tr != NULL);
/*
* Make sure that the data buffer sent to firmware is a
* 512 byte multiple in size.
*/
data_buf_size_adjusted =
(user_buf->twa_drvr_pkt.buffer_length + 511) & ~511;
if ((tr->tr_length = data_buf_size_adjusted)) {
if ((tr->tr_data = malloc(data_buf_size_adjusted,
M_DEVBUF, M_WAITOK)) == NULL) {
error = ENOMEM;
goto fw_passthru_done;
}
/* Copy the payload. */
if ((error = copyin((void *) (user_buf->pdata),
(void *) (tr->tr_data),
user_buf->twa_drvr_pkt.buffer_length)) != 0) {
goto fw_passthru_done;
}
tr->tr_flags |= TWA_CMD_DATA_IN | TWA_CMD_DATA_OUT;
}
tr->tr_cmd_pkt_type |= TWA_CMD_PKT_TYPE_IOCTL;
cmdpkt = tr->tr_command;
/* Copy the command packet. */
memcpy(cmdpkt, &(user_buf->twa_cmd_pkt),
sizeof(struct twa_command_packet));
cmdpkt->command.cmd_pkt_7k.generic.request_id =
tr->tr_request_id;
/* Send down the request, and wait for it to complete. */
if ((error = twa_wait_request(tr, TWA_REQUEST_TIMEOUT_PERIOD))) {
if (error == ETIMEDOUT)
break; /* clean-up done by twa_wait_request */
goto fw_passthru_done;
}
/* Copy the command packet back into user space. */
memcpy(&user_buf->twa_cmd_pkt, cmdpkt,
sizeof(struct twa_command_packet));
/* If there was a payload, copy it back too. */
if (tr->tr_length)
error = copyout(tr->tr_data, user_buf->pdata,
user_buf->twa_drvr_pkt.buffer_length);
fw_passthru_done:
/* Free resources. */
if (tr->tr_data)
free(tr->tr_data, M_DEVBUF);
if (tr)
twa_release_request(tr);
break;
}
case TW_OSL_IOCTL_SCAN_BUS:
twa_request_bus_scan(sc);
break;
case TW_CL_IOCTL_GET_FIRST_EVENT:
if (sc->twa_aen_queue_wrapped) {
if (sc->twa_aen_queue_overflow) {
/*
* The aen queue has wrapped, even before some
* events have been retrieved. Let the caller
* know that he missed out on some AEN's.
*/
user_buf->twa_drvr_pkt.status =
TWA_ERROR_AEN_OVERFLOW;
sc->twa_aen_queue_overflow = FALSE;
} else
user_buf->twa_drvr_pkt.status = 0;
event_index = sc->twa_aen_head;
} else {
if (sc->twa_aen_head == sc->twa_aen_tail) {
user_buf->twa_drvr_pkt.status =
TWA_ERROR_AEN_NO_EVENTS;
break;
}
user_buf->twa_drvr_pkt.status = 0;
event_index = sc->twa_aen_tail; /* = 0 */
}
if ((error = copyout(sc->twa_aen_queue[event_index],
user_buf->pdata, sizeof(struct tw_cl_event_packet))) != 0)
(sc->twa_aen_queue[event_index])->retrieved =
TWA_AEN_RETRIEVED;
break;
case TW_CL_IOCTL_GET_LAST_EVENT:
if (sc->twa_aen_queue_wrapped) {
if (sc->twa_aen_queue_overflow) {
/*
* The aen queue has wrapped, even before some
* events have been retrieved. Let the caller
* know that he missed out on some AEN's.
*/
user_buf->twa_drvr_pkt.status =
TWA_ERROR_AEN_OVERFLOW;
sc->twa_aen_queue_overflow = FALSE;
} else
user_buf->twa_drvr_pkt.status = 0;
} else {
if (sc->twa_aen_head == sc->twa_aen_tail) {
user_buf->twa_drvr_pkt.status =
TWA_ERROR_AEN_NO_EVENTS;
break;
}
user_buf->twa_drvr_pkt.status = 0;
}
event_index =
(sc->twa_aen_head - 1 + TWA_Q_LENGTH) % TWA_Q_LENGTH;
if ((error = copyout(sc->twa_aen_queue[event_index],
user_buf->pdata, sizeof(struct tw_cl_event_packet))) != 0)
(sc->twa_aen_queue[event_index])->retrieved =
TWA_AEN_RETRIEVED;
break;
case TW_CL_IOCTL_GET_NEXT_EVENT:
user_buf->twa_drvr_pkt.status = 0;
if (sc->twa_aen_queue_wrapped) {
if (sc->twa_aen_queue_overflow) {
/*
* The aen queue has wrapped, even before some
* events have been retrieved. Let the caller
* know that he missed out on some AEN's.
*/
user_buf->twa_drvr_pkt.status =
TWA_ERROR_AEN_OVERFLOW;
sc->twa_aen_queue_overflow = FALSE;
}
start_index = sc->twa_aen_head;
} else {
if (sc->twa_aen_head == sc->twa_aen_tail) {
user_buf->twa_drvr_pkt.status =
TWA_ERROR_AEN_NO_EVENTS;
break;
}
start_index = sc->twa_aen_tail; /* = 0 */
}
error = copyin(user_buf->pdata, &event_buf,
sizeof(struct tw_cl_event_packet));
event_index = (start_index + event_buf.sequence_id -
(sc->twa_aen_queue[start_index])->sequence_id + 1)
% TWA_Q_LENGTH;
if (!((sc->twa_aen_queue[event_index])->sequence_id >
event_buf.sequence_id)) {
if (user_buf->twa_drvr_pkt.status ==
TWA_ERROR_AEN_OVERFLOW)
/* so we report the overflow next time */
sc->twa_aen_queue_overflow = TRUE;
user_buf->twa_drvr_pkt.status = TWA_ERROR_AEN_NO_EVENTS;
break;
}
if ((error = copyout(sc->twa_aen_queue[event_index],
user_buf->pdata, sizeof(struct tw_cl_event_packet))) != 0)
(sc->twa_aen_queue[event_index])->retrieved =
TWA_AEN_RETRIEVED;
break;
case TW_CL_IOCTL_GET_PREVIOUS_EVENT:
user_buf->twa_drvr_pkt.status = 0;
if (sc->twa_aen_queue_wrapped) {
if (sc->twa_aen_queue_overflow) {
/*
* The aen queue has wrapped, even before some
* events have been retrieved. Let the caller
* know that he missed out on some AEN's.
*/
user_buf->twa_drvr_pkt.status =
TWA_ERROR_AEN_OVERFLOW;
sc->twa_aen_queue_overflow = FALSE;
}
start_index = sc->twa_aen_head;
} else {
if (sc->twa_aen_head == sc->twa_aen_tail) {
user_buf->twa_drvr_pkt.status =
TWA_ERROR_AEN_NO_EVENTS;
break;
}
start_index = sc->twa_aen_tail; /* = 0 */
}
if ((error = copyin(user_buf->pdata, &event_buf,
sizeof(struct tw_cl_event_packet))) != 0)
event_index = (start_index + event_buf.sequence_id -
(sc->twa_aen_queue[start_index])->sequence_id - 1)
% TWA_Q_LENGTH;
if (!((sc->twa_aen_queue[event_index])->sequence_id <
event_buf.sequence_id)) {
if (user_buf->twa_drvr_pkt.status ==
TWA_ERROR_AEN_OVERFLOW)
/* so we report the overflow next time */
sc->twa_aen_queue_overflow = TRUE;
user_buf->twa_drvr_pkt.status =
TWA_ERROR_AEN_NO_EVENTS;
break;
}
if ((error = copyout(sc->twa_aen_queue [event_index],
user_buf->pdata, sizeof(struct tw_cl_event_packet))) != 0)
aprint_error_dev(&sc->twa_dv, "get_previous: Could not copyout to "
"event_buf. error = %x\n",
error);
(sc->twa_aen_queue[event_index])->retrieved = TWA_AEN_RETRIEVED;
break;
case TW_CL_IOCTL_GET_LOCK:
{
struct tw_cl_lock_packet twa_lock;
copyin(user_buf->pdata, &twa_lock,
sizeof(struct tw_cl_lock_packet));
s = splbio();
if ((sc->twa_ioctl_lock.lock == TWA_LOCK_FREE) ||
(twa_lock.force_flag) ||
(time_second >= sc->twa_ioctl_lock.timeout)) {
sc->twa_ioctl_lock.lock = TWA_LOCK_HELD;
sc->twa_ioctl_lock.timeout = time_second +
(twa_lock.timeout_msec / 1000);
twa_lock.time_remaining_msec = twa_lock.timeout_msec;
user_buf->twa_drvr_pkt.status = 0;
} else {
twa_lock.time_remaining_msec =
(sc->twa_ioctl_lock.timeout - time_second) *
1000;
user_buf->twa_drvr_pkt.status =
TWA_ERROR_IOCTL_LOCK_ALREADY_HELD;
}
splx(s);
copyout(&twa_lock, user_buf->pdata,
sizeof(struct tw_cl_lock_packet));
break;
}
case TW_CL_IOCTL_RELEASE_LOCK:
s = splbio();
if (sc->twa_ioctl_lock.lock == TWA_LOCK_FREE) {
user_buf->twa_drvr_pkt.status =
TWA_ERROR_IOCTL_LOCK_NOT_HELD;
} else {
sc->twa_ioctl_lock.lock = TWA_LOCK_FREE;
user_buf->twa_drvr_pkt.status = 0;
}
splx(s);
break;
case TW_CL_IOCTL_GET_COMPATIBILITY_INFO:
{
struct tw_cl_compatibility_packet comp_pkt;
memcpy(comp_pkt.driver_version, TWA_DRIVER_VERSION_STRING,
sizeof(TWA_DRIVER_VERSION_STRING));
comp_pkt.working_srl = sc->working_srl;
comp_pkt.working_branch = sc->working_branch;
comp_pkt.working_build = sc->working_build;
user_buf->twa_drvr_pkt.status = 0;
/* Copy compatibility information to user space. */
copyout(&comp_pkt, user_buf->pdata,
min(sizeof(struct tw_cl_compatibility_packet),
user_buf->twa_drvr_pkt.buffer_length));
break;
}
case TWA_IOCTL_GET_UNITNAME: /* WASABI EXTENSION */
{
struct twa_unitname *tn;
struct twa_drive *tdr;
tn = (struct twa_unitname *)data;
/* XXX mutex */
if (tn->tn_unit < 0 || tn->tn_unit >= sc->sc_nunits)
return (EINVAL);
tdr = &sc->sc_units[tn->tn_unit];
if (tdr->td_dev == NULL)
tn->tn_name[0] = '\0';
else
strlcpy(tn->tn_name, device_xname(tdr->td_dev),
sizeof(tn->tn_name));
return (0);
}
default:
/* Unknown opcode. */
error = ENOTTY;
}
return(error);
}
const struct cdevsw twa_cdevsw = {
twaopen, twaclose, noread, nowrite, twaioctl,
nostop, notty, nopoll, nommap, nokqfilter, D_OTHER,
};
/*
* Function name: twa_get_param
* Description: Get a firmware parameter.
*
* Input: sc -- ptr to per ctlr structure
* table_id -- parameter table #
* param_id -- index of the parameter in the table
* param_size -- size of the parameter in bytes
* callback -- ptr to function, if any, to be called
* back on completion; NULL if no callback.
* Output: None
* Return value: ptr to param structure -- success
* NULL -- failure
*/
static int
twa_get_param(struct twa_softc *sc, int table_id, int param_id,
size_t param_size, void (* callback)(struct twa_request *tr),
struct twa_param_9k **param)
{
int rv = 0;
struct twa_request *tr;
union twa_command_7k *cmd;
/* Get a request packet. */
if ((tr = twa_get_request(sc, 0)) == NULL) {
rv = EAGAIN;
goto out;
}
tr->tr_cmd_pkt_type |= TWA_CMD_PKT_TYPE_INTERNAL;
/* Allocate memory to read data into. */
if ((*param = (struct twa_param_9k *)
malloc(TWA_SECTOR_SIZE, M_DEVBUF, M_NOWAIT)) == NULL) {
rv = ENOMEM;
goto out;
}
memset(*param, 0, sizeof(struct twa_param_9k) - 1 + param_size);
tr->tr_data = *param;
tr->tr_length = TWA_SECTOR_SIZE;
tr->tr_flags = TWA_CMD_DATA_IN | TWA_CMD_DATA_OUT;
/* Build the cmd pkt. */
cmd = &(tr->tr_command->command.cmd_pkt_7k);
tr->tr_command->cmd_hdr.header_desc.size_header = 128;
cmd->param.opcode = TWA_OP_GET_PARAM;
cmd->param.sgl_offset = 2;
cmd->param.size = 2;
cmd->param.request_id = tr->tr_request_id;
cmd->param.unit = 0;
cmd->param.param_count = 1;
/* Specify which parameter we need. */
(*param)->table_id = table_id | TWA_9K_PARAM_DESCRIPTOR;
(*param)->parameter_id = param_id;
(*param)->parameter_size_bytes = param_size;
/* Submit the command. */
if (callback == NULL) {
/* There's no call back; wait till the command completes. */
rv = twa_immediate_request(tr, TWA_REQUEST_TIMEOUT_PERIOD);
if (rv != 0)
goto out;
if ((rv = cmd->param.status) != 0) {
/* twa_drain_complete_queue will have done the unmapping */
goto out;
}
twa_release_request(tr);
return (rv);
} else {
/* There's a call back. Simply submit the command. */
tr->tr_callback = callback;
rv = twa_map_request(tr);
return (rv);
}
out:
if (tr)
twa_release_request(tr);
return(rv);
}
/*
* Function name: twa_set_param
* Description: Set a firmware parameter.
*
* Input: sc -- ptr to per ctlr structure
* table_id -- parameter table #
* param_id -- index of the parameter in the table
* param_size -- size of the parameter in bytes
* callback -- ptr to function, if any, to be called
* back on completion; NULL if no callback.
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
static int
twa_set_param(struct twa_softc *sc, int table_id, int param_id, int param_size,
void *data, void (* callback)(struct twa_request *tr))
{
struct twa_request *tr;
union twa_command_7k *cmd;
struct twa_param_9k *param = NULL;
int error = ENOMEM;
tr = twa_get_request(sc, 0);
if (tr == NULL)
return (EAGAIN);
tr->tr_cmd_pkt_type |= TWA_CMD_PKT_TYPE_INTERNAL;
/* Allocate memory to send data using. */
if ((param = (struct twa_param_9k *)
malloc(TWA_SECTOR_SIZE, M_DEVBUF, M_NOWAIT)) == NULL)
goto out;
memset(param, 0, sizeof(struct twa_param_9k) - 1 + param_size);
tr->tr_data = param;
tr->tr_length = TWA_SECTOR_SIZE;
tr->tr_flags = TWA_CMD_DATA_IN | TWA_CMD_DATA_OUT;
/* Build the cmd pkt. */
cmd = &(tr->tr_command->command.cmd_pkt_7k);
tr->tr_command->cmd_hdr.header_desc.size_header = 128;
cmd->param.opcode = TWA_OP_SET_PARAM;
cmd->param.sgl_offset = 2;
cmd->param.size = 2;
cmd->param.request_id = tr->tr_request_id;
cmd->param.unit = 0;
cmd->param.param_count = 1;
/* Specify which parameter we want to set. */
param->table_id = table_id | TWA_9K_PARAM_DESCRIPTOR;
param->parameter_id = param_id;
param->parameter_size_bytes = param_size;
memcpy(param->data, data, param_size);
/* Submit the command. */
if (callback == NULL) {
/* There's no call back; wait till the command completes. */
error = twa_immediate_request(tr, TWA_REQUEST_TIMEOUT_PERIOD);
if (error == ETIMEDOUT)
/* clean-up done by twa_immediate_request */
return(error);
if (error)
goto out;
if ((error = cmd->param.status)) {
/*
* twa_drain_complete_queue will have done the
* unmapping.
*/
goto out;
}
free(param, M_DEVBUF);
twa_release_request(tr);
return(error);
} else {
/* There's a call back. Simply submit the command. */
tr->tr_callback = callback;
if ((error = twa_map_request(tr)))
goto out;
return (0);
}
out:
if (param)
free(param, M_DEVBUF);
if (tr)
twa_release_request(tr);
return(error);
}
/*
* Function name: twa_init_connection
* Description: Send init_connection cmd to firmware
*
* Input: sc -- ptr to per ctlr structure
* message_credits -- max # of requests that we might send
* down simultaneously. This will be
* typically set to 256 at init-time or
* after a reset, and to 1 at shutdown-time
* set_features -- indicates if we intend to use 64-bit
* sg, also indicates if we want to do a
* basic or an extended init_connection;
*
* Note: The following input/output parameters are valid, only in case of an
* extended init_connection:
*
* current_fw_srl -- srl of fw we are bundled
* with, if any; 0 otherwise
* current_fw_arch_id -- arch_id of fw we are bundled
* with, if any; 0 otherwise
* current_fw_branch -- branch # of fw we are bundled
* with, if any; 0 otherwise
* current_fw_build -- build # of fw we are bundled
* with, if any; 0 otherwise
* Output: fw_on_ctlr_srl -- srl of fw on ctlr
* fw_on_ctlr_arch_id -- arch_id of fw on ctlr
* fw_on_ctlr_branch -- branch # of fw on ctlr
* fw_on_ctlr_build -- build # of fw on ctlr
* init_connect_result -- result bitmap of fw response
* Return value: 0 -- success
* non-zero-- failure
*/
static int
twa_init_connection(struct twa_softc *sc, uint16_t message_credits,
uint32_t set_features, uint16_t current_fw_srl,
uint16_t current_fw_arch_id, uint16_t current_fw_branch,
uint16_t current_fw_build, uint16_t *fw_on_ctlr_srl,
uint16_t *fw_on_ctlr_arch_id, uint16_t *fw_on_ctlr_branch,
uint16_t *fw_on_ctlr_build, uint32_t *init_connect_result)
{
struct twa_request *tr;
struct twa_command_init_connect *init_connect;
int error = 1;
/* Get a request packet. */
if ((tr = twa_get_request(sc, 0)) == NULL)
goto out;
tr->tr_cmd_pkt_type |= TWA_CMD_PKT_TYPE_INTERNAL;
/* Build the cmd pkt. */
init_connect = &(tr->tr_command->command.cmd_pkt_7k.init_connect);
tr->tr_command->cmd_hdr.header_desc.size_header = 128;
init_connect->opcode = TWA_OP_INIT_CONNECTION;
init_connect->request_id = tr->tr_request_id;
init_connect->message_credits = message_credits;
init_connect->features = set_features;
if (TWA_64BIT_ADDRESSES)
init_connect->features |= TWA_64BIT_SG_ADDRESSES;
if (set_features & TWA_EXTENDED_INIT_CONNECT) {
/*
* Fill in the extra fields needed for
* an extended init_connect.
*/
init_connect->size = 6;
init_connect->fw_srl = current_fw_srl;
init_connect->fw_arch_id = current_fw_arch_id;
init_connect->fw_branch = current_fw_branch;
} else
init_connect->size = 3;
/* Submit the command, and wait for it to complete. */
error = twa_immediate_request(tr, TWA_REQUEST_TIMEOUT_PERIOD);
if (error == ETIMEDOUT)
return(error); /* clean-up done by twa_immediate_request */
if (error)
goto out;
if ((error = init_connect->status)) {
/* twa_drain_complete_queue will have done the unmapping */
goto out;
}
if (set_features & TWA_EXTENDED_INIT_CONNECT) {
*fw_on_ctlr_srl = init_connect->fw_srl;
*fw_on_ctlr_arch_id = init_connect->fw_arch_id;
*fw_on_ctlr_branch = init_connect->fw_branch;
*fw_on_ctlr_build = init_connect->fw_build;
*init_connect_result = init_connect->result;
}
twa_release_request(tr);
return(error);
out:
if (tr)
twa_release_request(tr);
return(error);
}
static int
twa_reset(struct twa_softc *sc)
{
int s;
int error = 0;
/* Set the 'in reset' flag. */
sc->twa_sc_flags |= TWA_STATE_IN_RESET;
/*
* Disable interrupts from the controller, and mask any
* accidental entry into our interrupt handler.
*/
twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET,
TWA_CONTROL_DISABLE_INTERRUPTS);
s = splbio();
/* Soft reset the controller. */
if ((error = twa_soft_reset(sc)))
goto out;
/* Re-establish logical connection with the controller. */
if ((error = twa_init_connection(sc, TWA_INIT_MESSAGE_CREDITS,
0, 0, 0, 0, 0,
NULL, NULL, NULL, NULL, NULL))) {
goto out;
}
/*
* Complete all requests in the complete queue; error back all requests
* in the busy queue. Any internal requests will be simply freed.
* Re-submit any requests in the pending queue.
*/
twa_drain_busy_queue(sc);
out:
splx(s);
/*
* Enable interrupts, and also clear attention and response interrupts.
*/
twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET,
TWA_CONTROL_CLEAR_ATTENTION_INTERRUPT |
TWA_CONTROL_UNMASK_RESPONSE_INTERRUPT |
TWA_CONTROL_ENABLE_INTERRUPTS);
/* Clear the 'in reset' flag. */
sc->twa_sc_flags &= ~TWA_STATE_IN_RESET;
return(error);
}
static int
twa_soft_reset(struct twa_softc *sc)
{
uint32_t status_reg;
twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET,
TWA_CONTROL_ISSUE_SOFT_RESET |
TWA_CONTROL_CLEAR_HOST_INTERRUPT |
TWA_CONTROL_CLEAR_ATTENTION_INTERRUPT |
TWA_CONTROL_MASK_COMMAND_INTERRUPT |
TWA_CONTROL_MASK_RESPONSE_INTERRUPT |
TWA_CONTROL_DISABLE_INTERRUPTS);
if (twa_drain_response_queue_large(sc, 30) != 0) {
aprint_error_dev(&sc->twa_dv,
"response queue not empty after reset.\n");
return(1);
}
if (twa_wait_status(sc, TWA_STATUS_MICROCONTROLLER_READY |
TWA_STATUS_ATTENTION_INTERRUPT, 30)) {
aprint_error_dev(&sc->twa_dv, "no attention interrupt after reset.\n");
return(1);
}
twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET,
TWA_CONTROL_CLEAR_ATTENTION_INTERRUPT);
if (twa_drain_response_queue(sc)) {
aprint_error_dev(&sc->twa_dv, "cannot drain response queue.\n");
return(1);
}
if (twa_drain_aen_queue(sc)) {
aprint_error_dev(&sc->twa_dv, "cannot drain AEN queue.\n");
return(1);
}
if (twa_find_aen(sc, TWA_AEN_SOFT_RESET)) {
aprint_error_dev(&sc->twa_dv, "reset not reported by controller.\n");
return(1);
}
status_reg = twa_inl(sc, TWA_STATUS_REGISTER_OFFSET);
if (TWA_STATUS_ERRORS(status_reg) ||
twa_check_ctlr_state(sc, status_reg)) {
aprint_error_dev(&sc->twa_dv, "controller errors detected.\n");
return(1);
}
return(0);
}
static int
twa_wait_status(struct twa_softc *sc, uint32_t status, uint32_t timeout)
{
struct timeval t1;
time_t end_time;
uint32_t status_reg;
timeout = (timeout * 1000 * 100);
microtime(&t1);
end_time = t1.tv_usec + timeout;
do {
status_reg = twa_inl(sc, TWA_STATUS_REGISTER_OFFSET);
/* got the required bit(s)? */
if ((status_reg & status) == status)
return(0);
DELAY(100000);
microtime(&t1);
} while (t1.tv_usec <= end_time);
return(1);
}
static int
twa_fetch_aen(struct twa_softc *sc)
{
struct twa_request *tr;
int s, error = 0;
s = splbio();
if ((tr = twa_get_request(sc, TWA_CMD_AEN)) == NULL) {
splx(s);
return(EIO);
}
tr->tr_cmd_pkt_type |= TWA_CMD_PKT_TYPE_INTERNAL;
tr->tr_callback = twa_aen_callback;
tr->tr_data = malloc(TWA_SECTOR_SIZE, M_DEVBUF, M_NOWAIT);
if (twa_request_sense(tr, 0) != 0) {
if (tr->tr_data)
free(tr->tr_data, M_DEVBUF);
twa_release_request(tr);
error = 1;
}
splx(s);
return(error);
}
/*
* Function name: twa_aen_callback
* Description: Callback for requests to fetch AEN's.
*
* Input: tr -- ptr to completed request pkt
* Output: None
* Return value: None
*/
static void
twa_aen_callback(struct twa_request *tr)
{
int i;
int fetch_more_aens = 0;
struct twa_softc *sc = tr->tr_sc;
struct twa_command_header *cmd_hdr =
(struct twa_command_header *)(tr->tr_data);
struct twa_command_9k *cmd =
&(tr->tr_command->command.cmd_pkt_9k);
if (! cmd->status) {
if ((tr->tr_cmd_pkt_type & TWA_CMD_PKT_TYPE_9K) &&
(cmd->cdb[0] == 0x3 /* REQUEST_SENSE */))
if (twa_enqueue_aen(sc, cmd_hdr)
!= TWA_AEN_QUEUE_EMPTY)
fetch_more_aens = 1;
} else {
cmd_hdr->err_specific_desc[sizeof(cmd_hdr->err_specific_desc) - 1] = '\0';
for (i = 0; i < 18; i++)
printf("%x\t", tr->tr_command->cmd_hdr.sense_data[i]);
printf(""); /* print new line */
for (i = 0; i < 128; i++)
printf("%x\t", ((int8_t *)(tr->tr_data))[i]);
}
if (tr->tr_data)
free(tr->tr_data, M_DEVBUF);
twa_release_request(tr);
if (fetch_more_aens)
twa_fetch_aen(sc);
}
/*
* Function name: twa_enqueue_aen
* Description: Queues AEN's to be supplied to user-space tools on request.
*
* Input: sc -- ptr to per ctlr structure
* cmd_hdr -- ptr to hdr of fw cmd pkt, from where the AEN
* details can be retrieved.
* Output: None
* Return value: None
*/
static uint16_t
twa_enqueue_aen(struct twa_softc *sc, struct twa_command_header *cmd_hdr)
{
int rv, s;
struct tw_cl_event_packet *event;
uint16_t aen_code;
unsigned long sync_time;
s = splbio();
aen_code = cmd_hdr->status_block.error;
switch (aen_code) {
case TWA_AEN_SYNC_TIME_WITH_HOST:
sync_time = (time_second - (3 * 86400)) % 604800;
rv = twa_set_param(sc, TWA_PARAM_TIME_TABLE,
TWA_PARAM_TIME_SchedulerTime, 4,
&sync_time, twa_aen_callback);
#ifdef DIAGNOSTIC
if (rv != 0)
aprint_error_dev(&sc->twa_dv, "unable to sync time with ctlr\n");
#endif
break;
case TWA_AEN_QUEUE_EMPTY:
break;
default:
/* Queue the event. */
event = sc->twa_aen_queue[sc->twa_aen_head];
if (event->retrieved == TWA_AEN_NOT_RETRIEVED)
sc->twa_aen_queue_overflow = TRUE;
event->severity =
cmd_hdr->status_block.substatus_block.severity;
event->time_stamp_sec = time_second;
event->aen_code = aen_code;
event->retrieved = TWA_AEN_NOT_RETRIEVED;
event->sequence_id = ++(sc->twa_current_sequence_id);
cmd_hdr->err_specific_desc[sizeof(cmd_hdr->err_specific_desc) - 1] = '\0';
event->parameter_len = strlen(cmd_hdr->err_specific_desc);
memcpy(event->parameter_data, cmd_hdr->err_specific_desc,
event->parameter_len);
if (event->severity < TWA_AEN_SEVERITY_DEBUG) {
printf("%s: AEN 0x%04X: %s: %s: %s\n",
device_xname(&sc->twa_dv),
aen_code,
twa_aen_severity_table[event->severity],
twa_find_msg_string(twa_aen_table, aen_code),
event->parameter_data);
}
if ((sc->twa_aen_head + 1) == TWA_Q_LENGTH)
sc->twa_aen_queue_wrapped = TRUE;
sc->twa_aen_head = (sc->twa_aen_head + 1) % TWA_Q_LENGTH;
break;
} /* switch */
splx(s);
return (aen_code);
}
/*
* Function name: twa_find_aen
* Description: Reports whether a given AEN ever occurred.
*
* Input: sc -- ptr to per ctlr structure
* aen_code-- AEN to look for
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
static int
twa_find_aen(struct twa_softc *sc, uint16_t aen_code)
{
uint32_t last_index;
int s;
int i;
s = splbio();
if (sc->twa_aen_queue_wrapped)
last_index = sc->twa_aen_head;
else
last_index = 0;
i = sc->twa_aen_head;
do {
i = (i + TWA_Q_LENGTH - 1) % TWA_Q_LENGTH;
if ((sc->twa_aen_queue[i])->aen_code == aen_code) {
splx(s);
return(0);
}
} while (i != last_index);
splx(s);
return(1);
}
static inline void
twa_request_init(struct twa_request *tr, int flags)
{
tr->tr_data = NULL;
tr->tr_real_data = NULL;
tr->tr_length = 0;
tr->tr_real_length = 0;
tr->tr_status = TWA_CMD_SETUP;/* command is in setup phase */
tr->tr_flags = flags;
tr->tr_error = 0;
tr->tr_callback = NULL;
tr->tr_cmd_pkt_type = 0;
tr->bp = 0;
/*
* Look at the status field in the command packet to see how
* it completed the last time it was used, and zero out only
* the portions that might have changed. Note that we don't
* care to zero out the sglist.
*/
if (tr->tr_command->command.cmd_pkt_9k.status)
memset(tr->tr_command, 0,
sizeof(struct twa_command_header) + 28);
else
memset(&(tr->tr_command->command), 0, 28);
}
struct twa_request *
twa_get_request_wait(struct twa_softc *sc, int flags)
{
struct twa_request *tr;
int s;
KASSERT((flags & TWA_CMD_AEN) == 0);
s = splbio();
while ((tr = TAILQ_FIRST(&sc->twa_free)) == NULL) {
sc->twa_sc_flags |= TWA_STATE_REQUEST_WAIT;
(void) tsleep(&sc->twa_free, PRIBIO, "twaccb", hz);
}
TAILQ_REMOVE(&sc->twa_free, tr, tr_link);
splx(s);
twa_request_init(tr, flags);
return(tr);
}
struct twa_request *
twa_get_request(struct twa_softc *sc, int flags)
{
int s;
struct twa_request *tr;
/* Get a free request packet. */
s = splbio();
if (__predict_false((flags & TWA_CMD_AEN) != 0)) {
if ((sc->sc_twa_request->tr_flags & TWA_CMD_AEN_BUSY) == 0) {
tr = sc->sc_twa_request;
flags |= TWA_CMD_AEN_BUSY;
} else {
splx(s);
return (NULL);
}
} else {
if (__predict_false((tr =
TAILQ_FIRST(&sc->twa_free)) == NULL)) {
splx(s);
return (NULL);
}
TAILQ_REMOVE(&sc->twa_free, tr, tr_link);
}
splx(s);
twa_request_init(tr, flags);
return(tr);
}
/*
* Print some information about the controller
*/
static void
twa_describe_controller(struct twa_softc *sc)
{
struct twa_param_9k *p[10];
int i, rv = 0;
uint32_t dsize;
uint8_t ports;
memset(p, sizeof(struct twa_param_9k *), 10);
/* Get the port count. */
rv |= twa_get_param(sc, TWA_PARAM_CONTROLLER,
TWA_PARAM_CONTROLLER_PortCount, 1, NULL, &p[0]);
/* get version strings */
rv |= twa_get_param(sc, TWA_PARAM_VERSION, TWA_PARAM_VERSION_FW,
16, NULL, &p[1]);
rv |= twa_get_param(sc, TWA_PARAM_VERSION, TWA_PARAM_VERSION_BIOS,
16, NULL, &p[2]);
rv |= twa_get_param(sc, TWA_PARAM_VERSION, TWA_PARAM_VERSION_Mon,
16, NULL, &p[3]);
rv |= twa_get_param(sc, TWA_PARAM_VERSION, TWA_PARAM_VERSION_PCBA,
8, NULL, &p[4]);
rv |= twa_get_param(sc, TWA_PARAM_VERSION, TWA_PARAM_VERSION_ATA,
8, NULL, &p[5]);
rv |= twa_get_param(sc, TWA_PARAM_VERSION, TWA_PARAM_VERSION_PCI,
8, NULL, &p[6]);
rv |= twa_get_param(sc, TWA_PARAM_DRIVESUMMARY, TWA_PARAM_DRIVESTATUS,
16, NULL, &p[7]);
if (rv) {
/* some error occurred */
aprint_error_dev(&sc->twa_dv, "failed to fetch version information\n");
goto bail;
}
ports = *(uint8_t *)(p[0]->data);
aprint_normal_dev(&sc->twa_dv, "%d ports, Firmware %.16s, BIOS %.16s\n",
ports, p[1]->data, p[2]->data);
aprint_verbose_dev(&sc->twa_dv, "Monitor %.16s, PCB %.8s, Achip %.8s, Pchip %.8s\n",
p[3]->data, p[4]->data,
p[5]->data, p[6]->data);
for (i = 0; i < ports; i++) {
if ((*((char *)(p[7]->data + i)) & TWA_DRIVE_DETECTED) == 0)
continue;
rv = twa_get_param(sc, TWA_PARAM_DRIVE_TABLE + i,
TWA_PARAM_DRIVEMODELINDEX,
TWA_PARAM_DRIVEMODEL_LENGTH, NULL, &p[8]);
if (rv != 0) {
aprint_error_dev(&sc->twa_dv, "unable to get drive model for port"
" %d\n", i);
continue;
}
rv = twa_get_param(sc, TWA_PARAM_DRIVE_TABLE + i,
TWA_PARAM_DRIVESIZEINDEX,
TWA_PARAM_DRIVESIZE_LENGTH, NULL, &p[9]);
if (rv != 0) {
aprint_error_dev(&sc->twa_dv, "unable to get drive size"
" for port %d\n", i);
free(p[8], M_DEVBUF);
continue;
}
dsize = *(uint32_t *)(p[9]->data);
aprint_verbose_dev(&sc->twa_dv, "port %d: %.40s %d MB\n",
i, p[8]->data, dsize / 2048);
if (p[8])
free(p[8], M_DEVBUF);
if (p[9])
free(p[9], M_DEVBUF);
}
bail:
if (p[0])
free(p[0], M_DEVBUF);
if (p[1])
free(p[1], M_DEVBUF);
if (p[2])
free(p[2], M_DEVBUF);
if (p[3])
free(p[3], M_DEVBUF);
if (p[4])
free(p[4], M_DEVBUF);
if (p[5])
free(p[5], M_DEVBUF);
if (p[6])
free(p[6], M_DEVBUF);
}
/*
* Function name: twa_check_ctlr_state
* Description: Makes sure that the fw status register reports a
* proper status.
*
* Input: sc -- ptr to per ctlr structure
* status_reg -- value in the status register
* Output: None
* Return value: 0 -- no errors
* non-zero-- errors
*/
static int
twa_check_ctlr_state(struct twa_softc *sc, uint32_t status_reg)
{
int result = 0;
struct timeval t1;
static time_t last_warning[2] = {0, 0};
/* Check if the 'micro-controller ready' bit is not set. */
if ((status_reg & TWA_STATUS_EXPECTED_BITS) !=
TWA_STATUS_EXPECTED_BITS) {
microtime(&t1);
last_warning[0] += (5 * 1000 * 100);
if (t1.tv_usec > last_warning[0]) {
microtime(&t1);
last_warning[0] = t1.tv_usec;
}
result = 1;
}
/* Check if any error bits are set. */
if ((status_reg & TWA_STATUS_UNEXPECTED_BITS) != 0) {
microtime(&t1);
last_warning[1] += (5 * 1000 * 100);
if (t1.tv_usec > last_warning[1]) {
microtime(&t1);
last_warning[1] = t1.tv_usec;
}
if (status_reg & TWA_STATUS_PCI_PARITY_ERROR_INTERRUPT) {
aprint_error_dev(&sc->twa_dv, "clearing PCI parity error "
"re-seat/move/replace card.\n");
twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET,
TWA_CONTROL_CLEAR_PARITY_ERROR);
pci_conf_write(sc->pc, sc->tag,
PCI_COMMAND_STATUS_REG,
TWA_PCI_CONFIG_CLEAR_PARITY_ERROR);
}
if (status_reg & TWA_STATUS_PCI_ABORT_INTERRUPT) {
aprint_error_dev(&sc->twa_dv, "clearing PCI abort\n");
twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET,
TWA_CONTROL_CLEAR_PCI_ABORT);
pci_conf_write(sc->pc, sc->tag,
PCI_COMMAND_STATUS_REG,
TWA_PCI_CONFIG_CLEAR_PCI_ABORT);
}
if (status_reg & TWA_STATUS_QUEUE_ERROR_INTERRUPT) {
/*
* As documented by 3ware, the 9650 erroneously
* flags queue errors during resets.
* Just ignore them during the reset instead of
* bothering the console.
*/
if ((sc->sc_product_id != PCI_PRODUCT_3WARE_9650) ||
((sc->twa_sc_flags & TWA_STATE_IN_RESET) == 0)) {
aprint_error_dev(&sc->twa_dv,
"clearing controller queue error\n");
}
twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET,
TWA_CONTROL_CLEAR_QUEUE_ERROR);
}
if (status_reg & TWA_STATUS_MICROCONTROLLER_ERROR) {
aprint_error_dev(&sc->twa_dv, "micro-controller error\n");
result = 1;
}
}
return(result);
}