#include <linux/blkdev.h> /* For block_size() */
#include <linux/delay.h> /* For ssleep/msleep */
#include <linux/device.h>
+#include <linux/slab.h>
/*
* Bucket size for counting good commands in between bad ones.
#define AIC79XX_PRECOMP_INDEX 0
#define AIC79XX_SLEWRATE_INDEX 1
#define AIC79XX_AMPLITUDE_INDEX 2
-static struct ahd_linux_iocell_opts aic79xx_iocell_info[] =
+static const struct ahd_linux_iocell_opts aic79xx_iocell_info[] =
{
AIC79XX_DEFAULT_IOOPTS,
AIC79XX_DEFAULT_IOOPTS,
* force all outstanding transactions to be serviced prior to a new
* transaction.
*/
-uint32_t aic79xx_periodic_otag;
+static uint32_t aic79xx_periodic_otag;
/* Some storage boxes are using an LSI chip which has a bug making it
* impossible to use aic79xx Rev B chip in 320 speeds. The following
*/
static char *aic79xx = NULL;
-MODULE_AUTHOR("Maintainer: Justin T. Gibbs <gibbs@scsiguy.com>");
-MODULE_DESCRIPTION("Adaptec Aic790X U320 SCSI Host Bus Adapter driver");
+MODULE_AUTHOR("Maintainer: Hannes Reinecke <hare@suse.de>");
+MODULE_DESCRIPTION("Adaptec AIC790X U320 SCSI Host Bus Adapter driver");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(AIC79XX_DRIVER_VERSION);
module_param(aic79xx, charp, 0444);
" verbose Enable verbose/diagnostic logging\n"
" allow_memio Allow device registers to be memory mapped\n"
" debug Bitmask of debug values to enable\n"
-" no_reset Supress initial bus resets\n"
+" no_reset Suppress initial bus resets\n"
" extended Enable extended geometry on all controllers\n"
" periodic_otag Send an ordered tagged transaction\n"
" periodically to prevent tag starvation.\n"
struct scsi_cmnd *);
static void ahd_linux_setup_tag_info_global(char *p);
static int aic79xx_setup(char *c);
+static void ahd_freeze_simq(struct ahd_softc *ahd);
+static void ahd_release_simq(struct ahd_softc *ahd);
static int ahd_linux_unit;
+/************************** OS Utility Wrappers *******************************/
+void ahd_delay(long);
+void
+ahd_delay(long usec)
+{
+ /*
+ * udelay on Linux can have problems for
+ * multi-millisecond waits. Wait at most
+ * 1024us per call.
+ */
+ while (usec > 0) {
+ udelay(usec % 1024);
+ usec -= 1024;
+ }
+}
+
+
+/***************************** Low Level I/O **********************************/
+uint8_t ahd_inb(struct ahd_softc * ahd, long port);
+void ahd_outb(struct ahd_softc * ahd, long port, uint8_t val);
+void ahd_outw_atomic(struct ahd_softc * ahd,
+ long port, uint16_t val);
+void ahd_outsb(struct ahd_softc * ahd, long port,
+ uint8_t *, int count);
+void ahd_insb(struct ahd_softc * ahd, long port,
+ uint8_t *, int count);
+
+uint8_t
+ahd_inb(struct ahd_softc * ahd, long port)
+{
+ uint8_t x;
+
+ if (ahd->tags[0] == BUS_SPACE_MEMIO) {
+ x = readb(ahd->bshs[0].maddr + port);
+ } else {
+ x = inb(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
+ }
+ mb();
+ return (x);
+}
+
+#if 0 /* unused */
+static uint16_t
+ahd_inw_atomic(struct ahd_softc * ahd, long port)
+{
+ uint8_t x;
+
+ if (ahd->tags[0] == BUS_SPACE_MEMIO) {
+ x = readw(ahd->bshs[0].maddr + port);
+ } else {
+ x = inw(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
+ }
+ mb();
+ return (x);
+}
+#endif
+
+void
+ahd_outb(struct ahd_softc * ahd, long port, uint8_t val)
+{
+ if (ahd->tags[0] == BUS_SPACE_MEMIO) {
+ writeb(val, ahd->bshs[0].maddr + port);
+ } else {
+ outb(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
+ }
+ mb();
+}
+
+void
+ahd_outw_atomic(struct ahd_softc * ahd, long port, uint16_t val)
+{
+ if (ahd->tags[0] == BUS_SPACE_MEMIO) {
+ writew(val, ahd->bshs[0].maddr + port);
+ } else {
+ outw(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
+ }
+ mb();
+}
+
+void
+ahd_outsb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
+{
+ int i;
+
+ /*
+ * There is probably a more efficient way to do this on Linux
+ * but we don't use this for anything speed critical and this
+ * should work.
+ */
+ for (i = 0; i < count; i++)
+ ahd_outb(ahd, port, *array++);
+}
+
+void
+ahd_insb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
+{
+ int i;
+
+ /*
+ * There is probably a more efficient way to do this on Linux
+ * but we don't use this for anything speed critical and this
+ * should work.
+ */
+ for (i = 0; i < count; i++)
+ *array++ = ahd_inb(ahd, port);
+}
+
+/******************************* PCI Routines *********************************/
+uint32_t
+ahd_pci_read_config(ahd_dev_softc_t pci, int reg, int width)
+{
+ switch (width) {
+ case 1:
+ {
+ uint8_t retval;
+
+ pci_read_config_byte(pci, reg, &retval);
+ return (retval);
+ }
+ case 2:
+ {
+ uint16_t retval;
+ pci_read_config_word(pci, reg, &retval);
+ return (retval);
+ }
+ case 4:
+ {
+ uint32_t retval;
+ pci_read_config_dword(pci, reg, &retval);
+ return (retval);
+ }
+ default:
+ panic("ahd_pci_read_config: Read size too big");
+ /* NOTREACHED */
+ return (0);
+ }
+}
+
+void
+ahd_pci_write_config(ahd_dev_softc_t pci, int reg, uint32_t value, int width)
+{
+ switch (width) {
+ case 1:
+ pci_write_config_byte(pci, reg, value);
+ break;
+ case 2:
+ pci_write_config_word(pci, reg, value);
+ break;
+ case 4:
+ pci_write_config_dword(pci, reg, value);
+ break;
+ default:
+ panic("ahd_pci_write_config: Write size too big");
+ /* NOTREACHED */
+ }
+}
+
/****************************** Inlines ***************************************/
-static __inline void ahd_linux_unmap_scb(struct ahd_softc*, struct scb*);
+static void ahd_linux_unmap_scb(struct ahd_softc*, struct scb*);
-static __inline void
+static void
ahd_linux_unmap_scb(struct ahd_softc *ahd, struct scb *scb)
{
struct scsi_cmnd *cmd;
- int direction;
cmd = scb->io_ctx;
- direction = cmd->sc_data_direction;
ahd_sync_sglist(ahd, scb, BUS_DMASYNC_POSTWRITE);
- if (cmd->use_sg != 0) {
- struct scatterlist *sg;
-
- sg = (struct scatterlist *)cmd->request_buffer;
- pci_unmap_sg(ahd->dev_softc, sg, cmd->use_sg, direction);
- } else if (cmd->request_bufflen != 0) {
- pci_unmap_single(ahd->dev_softc,
- scb->platform_data->buf_busaddr,
- cmd->request_bufflen, direction);
- }
+ scsi_dma_unmap(cmd);
}
/******************************** Macros **************************************/
bp = &buffer[0];
ahd = *(struct ahd_softc **)host->hostdata;
memset(bp, 0, sizeof(buffer));
- strcpy(bp, "Adaptec AIC79XX PCI-X SCSI HBA DRIVER, Rev ");
- strcat(bp, AIC79XX_DRIVER_VERSION);
- strcat(bp, "\n");
- strcat(bp, " <");
+ strcpy(bp, "Adaptec AIC79XX PCI-X SCSI HBA DRIVER, Rev " AIC79XX_DRIVER_VERSION "\n"
+ " <");
strcat(bp, ahd->description);
- strcat(bp, ">\n");
- strcat(bp, " ");
+ strcat(bp, ">\n"
+ " ");
ahd_controller_info(ahd, ahd_info);
strcat(bp, ahd_info);
- strcat(bp, "\n");
return (bp);
}
return rtn;
}
-static inline struct scsi_target **
+static struct scsi_target **
ahd_linux_target_in_softc(struct scsi_target *starget)
{
struct ahd_softc *ahd =
starget->id, &tstate);
if ((flags & CFPACKETIZED) == 0) {
- /* Do not negotiate packetized transfers */
- spi_rd_strm(starget) = 0;
- spi_pcomp_en(starget) = 0;
- spi_rti(starget) = 0;
- spi_wr_flow(starget) = 0;
- spi_hold_mcs(starget) = 0;
+ /* don't negotiate packetized (IU) transfers */
+ spi_max_iu(starget) = 0;
} else {
if ((ahd->features & AHD_RTI) == 0)
spi_rti(starget) = 0;
}
if ((flags & CFQAS) == 0)
- spi_qas(starget) = 0;
+ spi_max_qas(starget) = 0;
/* Transinfo values have been set to BIOS settings */
spi_max_width(starget) = (flags & CFWIDEB) ? 1 : 0;
#endif
.can_queue = AHD_MAX_QUEUE,
.this_id = -1,
+ .max_sectors = 8192,
.cmd_per_lun = 2,
.use_clustering = ENABLE_CLUSTERING,
.slave_alloc = ahd_linux_slave_alloc,
char *p;
char *end;
- static struct {
+ static const struct {
const char *name;
uint32_t *flag;
} options[] = {
return 0;
}
-uint64_t
-ahd_linux_get_memsize(void)
-{
- struct sysinfo si;
-
- si_meminfo(&si);
- return ((uint64_t)si.totalram << PAGE_SHIFT);
-}
-
/*
* Place the SCSI bus into a known state by either resetting it,
* or forcing transfer negotiations on the next command to any
* Lookup and commit any modified IO Cell options.
*/
if (ahd->unit < ARRAY_SIZE(aic79xx_iocell_info)) {
- struct ahd_linux_iocell_opts *iocell_opts;
+ const struct ahd_linux_iocell_opts *iocell_opts;
iocell_opts = &aic79xx_iocell_info[ahd->unit];
if (iocell_opts->precomp != AIC79XX_DEFAULT_PRECOMP)
u_int col_idx;
uint16_t mask;
unsigned long flags;
+ int nseg;
+
+ nseg = scsi_dma_map(cmd);
+ if (nseg < 0)
+ return SCSI_MLQUEUE_HOST_BUSY;
ahd_lock(ahd, &flags);
if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) {
ahd->flags |= AHD_RESOURCE_SHORTAGE;
ahd_unlock(ahd, &flags);
+ scsi_dma_unmap(cmd);
return SCSI_MLQUEUE_HOST_BUSY;
}
ahd_set_residual(scb, 0);
ahd_set_sense_residual(scb, 0);
scb->sg_count = 0;
- if (cmd->use_sg != 0) {
- void *sg;
- struct scatterlist *cur_seg;
- u_int nseg;
- int dir;
-
- cur_seg = (struct scatterlist *)cmd->request_buffer;
- dir = cmd->sc_data_direction;
- nseg = pci_map_sg(ahd->dev_softc, cur_seg,
- cmd->use_sg, dir);
+
+ if (nseg > 0) {
+ void *sg = scb->sg_list;
+ struct scatterlist *cur_seg;
+ int i;
+
scb->platform_data->xfer_len = 0;
- for (sg = scb->sg_list; nseg > 0; nseg--, cur_seg++) {
+
+ scsi_for_each_sg(cmd, cur_seg, nseg, i) {
dma_addr_t addr;
bus_size_t len;
len = sg_dma_len(cur_seg);
scb->platform_data->xfer_len += len;
sg = ahd_sg_setup(ahd, scb, sg, addr, len,
- /*last*/nseg == 1);
+ i == (nseg - 1));
}
- } else if (cmd->request_bufflen != 0) {
- void *sg;
- dma_addr_t addr;
- int dir;
-
- sg = scb->sg_list;
- dir = cmd->sc_data_direction;
- addr = pci_map_single(ahd->dev_softc,
- cmd->request_buffer,
- cmd->request_bufflen, dir);
- scb->platform_data->xfer_len = cmd->request_bufflen;
- scb->platform_data->buf_busaddr = addr;
- sg = ahd_sg_setup(ahd, scb, sg, addr,
- cmd->request_bufflen, /*last*/TRUE);
}
LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links);
* SCSI controller interrupt handler.
*/
irqreturn_t
-ahd_linux_isr(int irq, void *dev_id, struct pt_regs * regs)
+ahd_linux_isr(int irq, void *dev_id)
{
struct ahd_softc *ahd;
u_long flags;
u_int sense_offset;
if (scb->flags & SCB_SENSE) {
- sense_size = MIN(sizeof(struct scsi_sense_data)
+ sense_size = min(sizeof(struct scsi_sense_data)
- ahd_get_sense_residual(scb),
- sizeof(cmd->sense_buffer));
+ (u_long)SCSI_SENSE_BUFFERSIZE);
sense_offset = 0;
} else {
/*
*/
siu = (struct scsi_status_iu_header *)
scb->sense_data;
- sense_size = MIN(scsi_4btoul(siu->sense_length),
- sizeof(cmd->sense_buffer));
+ sense_size = min_t(size_t,
+ scsi_4btoul(siu->sense_length),
+ SCSI_SENSE_BUFFERSIZE);
sense_offset = SIU_SENSE_OFFSET(siu);
}
- memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer));
+ memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
memcpy(cmd->sense_buffer,
ahd_get_sense_buf(ahd, scb)
+ sense_offset, sense_size);
struct scsi_sense_data *sense;
sense = (struct scsi_sense_data *)
- &cmd->sense_buffer;
+ cmd->sense_buffer;
if (sense->extra_len >= 5 &&
(sense->add_sense_code == 0x47
|| sense->add_sense_code == 0x48))
cmd->scsi_done(cmd);
}
-void
+static void
ahd_freeze_simq(struct ahd_softc *ahd)
{
scsi_block_requests(ahd->platform_data->host);
}
-void
+static void
ahd_release_simq(struct ahd_softc *ahd)
{
scsi_unblock_requests(ahd->platform_data->host);
/*
* The sequencer will never re-reference the
* in-core SCB. To make sure we are notified
- * during reslection, set the MK_MESSAGE flag in
+ * during reselection, set the MK_MESSAGE flag in
* the card's copy of the SCB.
*/
ahd_outb(ahd, SCB_CONTROL,
if (period < 8)
period = 8;
if (period < 10) {
- ppr_options |= MSG_EXT_PPR_DT_REQ;
- if (period == 8)
- ppr_options |= MSG_EXT_PPR_IU_REQ;
+ if (spi_max_width(starget)) {
+ ppr_options |= MSG_EXT_PPR_DT_REQ;
+ if (period == 8)
+ ppr_options |= MSG_EXT_PPR_IU_REQ;
+ } else
+ period = 10;
}
dt = ppr_options & MSG_EXT_PPR_DT_REQ;
printf("%s: %s DT\n", ahd_name(ahd),
dt ? "enabling" : "disabling");
#endif
- if (dt) {
+ if (dt && spi_max_width(starget)) {
ppr_options |= MSG_EXT_PPR_DT_REQ;
if (!width)
ahd_linux_set_width(starget, 1);
iu ? "enabling" : "disabling");
#endif
- if (iu) {
+ if (iu && spi_max_width(starget)) {
ppr_options |= MSG_EXT_PPR_IU_REQ;
ppr_options |= MSG_EXT_PPR_DT_REQ; /* IU requires DT */
}
rdstrm ? "enabling" : "disabling");
#endif
- if (rdstrm)
+ if (rdstrm && spi_max_width(starget))
ppr_options |= MSG_EXT_PPR_RD_STRM;
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
wrflow ? "enabling" : "disabling");
#endif
- if (wrflow)
+ if (wrflow && spi_max_width(starget))
ppr_options |= MSG_EXT_PPR_WR_FLOW;
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
rti ? "enabling" : "disabling");
#endif
- if (rti)
+ if (rti && spi_max_width(starget))
ppr_options |= MSG_EXT_PPR_RTI;
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
pcomp ? "Enable" : "Disable");
#endif
- if (pcomp)
+ if (pcomp && spi_max_width(starget)) {
+ uint8_t precomp;
+
+ if (ahd->unit < ARRAY_SIZE(aic79xx_iocell_info)) {
+ const struct ahd_linux_iocell_opts *iocell_opts;
+
+ iocell_opts = &aic79xx_iocell_info[ahd->unit];
+ precomp = iocell_opts->precomp;
+ } else {
+ precomp = AIC79XX_DEFAULT_PRECOMP;
+ }
ppr_options |= MSG_EXT_PPR_PCOMP_EN;
+ AHD_SET_PRECOMP(ahd, precomp);
+ } else {
+ AHD_SET_PRECOMP(ahd, 0);
+ }
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
unsigned long flags;
- if (hold)
+ if (hold && spi_max_width(starget))
ppr_options |= MSG_EXT_PPR_HOLD_MCS;
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
ahd_unlock(ahd, &flags);
}
+static void ahd_linux_get_signalling(struct Scsi_Host *shost)
+{
+ struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata;
+ unsigned long flags;
+ u8 mode;
+
+ ahd_lock(ahd, &flags);
+ ahd_pause(ahd);
+ mode = ahd_inb(ahd, SBLKCTL);
+ ahd_unpause(ahd);
+ ahd_unlock(ahd, &flags);
+ if (mode & ENAB40)
+ spi_signalling(shost) = SPI_SIGNAL_LVD;
+ else if (mode & ENAB20)
+ spi_signalling(shost) = SPI_SIGNAL_SE;
+ else
+ spi_signalling(shost) = SPI_SIGNAL_UNKNOWN;
+}
static struct spi_function_template ahd_linux_transport_functions = {
.set_offset = ahd_linux_set_offset,
.show_pcomp_en = 1,
.set_hold_mcs = ahd_linux_set_hold_mcs,
.show_hold_mcs = 1,
+ .get_signalling = ahd_linux_get_signalling,
};
static int __init
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff