[PATCH 2/6] aic79xx: Use struct map_node
Use struct map_node instead of separate variables.
---
drivers/scsi/aic7xxx/aic79xx.h | 29 +++++++++++++++++-----------
drivers/scsi/aic7xxx/aic79xx_core.c | 28 ++++++++++++++++-----------
drivers/scsi/aic7xxx/aic79xx_inline.h | 34
+++++++++++++++++++++++----------
3 files changed, 58 insertions(+), 33 deletions(-)
dc6a17c121389dd95a403b9da25326543af4d05d
diff --git a/drivers/scsi/aic7xxx/aic79xx.h b/drivers/scsi/aic7xxx/aic79xx.h
--- a/drivers/scsi/aic7xxx/aic79xx.h
+++ b/drivers/scsi/aic7xxx/aic79xx.h
@@ -1,7 +1,7 @@
/*
* Core definitions and data structures shareable across OS platforms.
*
- * Copyright (c) 1994-2002 Justin T. Gibbs.
+ * Copyright (c) 1994-2001 Justin T. Gibbs.
* Copyright (c) 2000-2002 Adaptec Inc.
* All rights reserved.
*
@@ -37,7 +37,7 @@
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
- * $Id: //depot/aic7xxx/aic7xxx/aic79xx.h#95 $
+ * $Id: //depot/aic7xxx/aic7xxx/aic79xx.h#108 $
*
* $FreeBSD$
*/
@@ -1062,6 +1062,7 @@ struct ahd_softc {
struct scb_data scb_data;
struct hardware_scb *next_queued_hscb;
+ struct map_node *next_queued_hscb_map;
/*
* SCBs that have been sent to the controller
@@ -1140,10 +1141,6 @@ struct ahd_softc {
ahd_flag flags;
struct seeprom_config *seep_config;
- /* Values to store in the SEQCTL register for pause and unpause */
- uint8_t unpause;
- uint8_t pause;
-
/* Command Queues */
uint16_t qoutfifonext;
uint16_t qoutfifonext_valid_tag;
@@ -1151,6 +1148,17 @@ struct ahd_softc {
uint16_t qinfifo[AHD_SCB_MAX];
uint16_t *qoutfifo;
+ /*
+ * Our qfreeze count. The sequencer compares
+ * this value with its own counter to determine
+ * whether to allow selections to occur.
+ */
+ uint16_t qfreeze_cnt;
+
+ /* Values to store in the SEQCTL register for pause and unpause */
+ uint8_t unpause;
+ uint8_t pause;
+
/* Critical Section Data */
struct cs *critical_sections;
u_int num_critical_sections;
@@ -1197,8 +1205,7 @@ struct ahd_softc {
*/
bus_dma_tag_t parent_dmat;
bus_dma_tag_t shared_data_dmat;
- bus_dmamap_t shared_data_dmamap;
- dma_addr_t shared_data_busaddr;
+ struct map_node shared_data_map;
/* Information saved through suspend/resume cycles */
struct ahd_suspend_state suspend_state;
@@ -1296,9 +1303,9 @@ struct ahd_devinfo {
};
/****************************** PCI Structures
********************************/
-#define AHD_PCI_IOADDR0 PCIR_MAPS /* I/O BAR*/
-#define AHD_PCI_MEMADDR (PCIR_MAPS + 4) /* Memory BAR */
-#define AHD_PCI_IOADDR1 (PCIR_MAPS + 12)/* Second I/O BAR */
+#define AHD_PCI_IOADDR0 PCIR_BAR(0) /* I/O BAR*/
+#define AHD_PCI_MEMADDR PCIR_BAR(1) /* Memory BAR */
+#define AHD_PCI_IOADDR1 PCIR_BAR(3) /* Second I/O BAR */
typedef int (ahd_device_setup_t)(struct ahd_softc *);
diff --git a/drivers/scsi/aic7xxx/aic79xx_core.c
b/drivers/scsi/aic7xxx/aic79xx_core.c
--- a/drivers/scsi/aic7xxx/aic79xx_core.c
+++ b/drivers/scsi/aic7xxx/aic79xx_core.c
@@ -5203,13 +5203,13 @@ ahd_free(struct ahd_softc *ahd)
/* FALLTHROUGH */
case 4:
ahd_dmamap_unload(ahd, ahd->shared_data_dmat,
- ahd->shared_data_dmamap);
+ ahd->shared_data_map.dmamap);
/* FALLTHROUGH */
case 3:
ahd_dmamem_free(ahd, ahd->shared_data_dmat, ahd->qoutfifo,
- ahd->shared_data_dmamap);
+ ahd->shared_data_map.dmamap);
ahd_dmamap_destroy(ahd, ahd->shared_data_dmat,
- ahd->shared_data_dmamap);
+ ahd->shared_data_map.dmamap);
/* FALLTHROUGH */
case 2:
ahd_dma_tag_destroy(ahd, ahd->shared_data_dmat);
@@ -6088,7 +6088,6 @@ static const char *termstat_strings[] =
int
ahd_init(struct ahd_softc *ahd)
{
- uint8_t *base_vaddr;
uint8_t *next_vaddr;
dma_addr_t next_baddr;
size_t driver_data_size;
@@ -6178,20 +6177,23 @@ ahd_init(struct ahd_softc *ahd)
/* Allocation of driver data */
if (ahd_dmamem_alloc(ahd, ahd->shared_data_dmat,
- (void **)&base_vaddr,
- BUS_DMA_NOWAIT, &ahd->shared_data_dmamap) != 0) {
+ (void **)&ahd->shared_data_map.vaddr,
+ BUS_DMA_NOWAIT,
+ &ahd->shared_data_map.dmamap) != 0) {
return (ENOMEM);
}
ahd->init_level++;
/* And permanently map it in */
- ahd_dmamap_load(ahd, ahd->shared_data_dmat, ahd->shared_data_dmamap,
- base_vaddr, driver_data_size, ahd_dmamap_cb,
- &ahd->shared_data_busaddr, /*flags*/0);
- ahd->qoutfifo = (uint16_t *)base_vaddr;
+ ahd_dmamap_load(ahd, ahd->shared_data_dmat, ahd->shared_data_map.dmamap,
+ ahd->shared_data_map.vaddr, driver_data_size,
+ ahd_dmamap_cb, &ahd->shared_data_map.physaddr,
+ /*flags*/0);
+ ahd->qoutfifo = (uint16_t *)ahd->shared_data_map.vaddr;
next_vaddr = (uint8_t *)&ahd->qoutfifo[AHD_QOUT_SIZE];
- next_baddr = ahd->shared_data_busaddr + AHD_QOUT_SIZE*sizeof(uint16_t);
+ next_baddr = ahd->shared_data_map.physaddr
+ + AHD_QOUT_SIZE*sizeof(uint16_t);
if ((ahd->features & AHD_TARGETMODE) != 0) {
ahd->targetcmds = (struct target_cmd *)next_vaddr;
next_vaddr += AHD_TMODE_CMDS * sizeof(struct target_cmd);
@@ -6212,6 +6214,7 @@ ahd_init(struct ahd_softc *ahd)
* specially from the DMA safe memory chunk used for the QOUTFIFO.
*/
ahd->next_queued_hscb = (struct hardware_scb *)next_vaddr;
+ ahd->next_queued_hscb_map = &ahd->shared_data_map;
ahd->next_queued_hscb->hscb_busaddr = ahd_htole32(next_baddr);
ahd->init_level++;
@@ -6557,12 +6560,13 @@ ahd_chip_init(struct ahd_softc *ahd)
/*
* The Freeze Count is 0.
*/
+ ahd->qfreeze_cnt = 0;
ahd_outw(ahd, QFREEZE_COUNT, 0);
/*
* Tell the sequencer where it can find our arrays in memory.
*/
- busaddr = ahd->shared_data_busaddr;
+ busaddr = ahd->shared_data_map.physaddr;
ahd_outb(ahd, SHARED_DATA_ADDR, busaddr & 0xFF);
ahd_outb(ahd, SHARED_DATA_ADDR + 1, (busaddr >> 8) & 0xFF);
ahd_outb(ahd, SHARED_DATA_ADDR + 2, (busaddr >> 16) & 0xFF);
diff --git a/drivers/scsi/aic7xxx/aic79xx_inline.h
b/drivers/scsi/aic7xxx/aic79xx_inline.h
--- a/drivers/scsi/aic7xxx/aic79xx_inline.h
+++ b/drivers/scsi/aic7xxx/aic79xx_inline.h
@@ -37,7 +37,7 @@
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
- * $Id: //depot/aic7xxx/aic7xxx/aic79xx_inline.h#51 $
+ * $Id: //depot/aic7xxx/aic7xxx/aic79xx_inline.h#58 $
*
* $FreeBSD$
*/
@@ -522,12 +522,21 @@ do { \
static __inline uint16_t
ahd_inw(struct ahd_softc *ahd, u_int port)
{
+ /*
+ * Read high byte first as some registers increment
+ * or have other side effects when the low byte is
+ * read.
+ */
return ((ahd_inb(ahd, port+1) << 8) | ahd_inb(ahd, port));
}
static __inline void
ahd_outw(struct ahd_softc *ahd, u_int port, u_int value)
{
+ /*
+ * Write low byte first to accomodate registers
+ * such as PRGMCNT where the order maters.
+ */
ahd_outb(ahd, port, value & 0xFF);
ahd_outb(ahd, port+1, (value >> 8) & 0xFF);
}
@@ -684,7 +693,7 @@ ahd_inb_scbram(struct ahd_softc *ahd, u_
* Razor #528
*/
value = ahd_inb(ahd, offset);
- if ((ahd->flags & AHD_PCIX_SCBRAM_RD_BUG) != 0)
+ if ((ahd->bugs & AHD_PCIX_SCBRAM_RD_BUG) != 0)
ahd_inb(ahd, MODE_PTR);
return (value);
}
@@ -727,7 +736,8 @@ ahd_lookup_scb(struct ahd_softc *ahd, u_
static __inline void
ahd_swap_with_next_hscb(struct ahd_softc *ahd, struct scb *scb)
{
- struct hardware_scb *q_hscb;
+ struct hardware_scb *q_hscb;
+ struct map_node *q_hscb_map;
uint32_t saved_hscb_busaddr;
/*
@@ -743,6 +753,7 @@ ahd_swap_with_next_hscb(struct ahd_softc
* locate the correct SCB by SCB_TAG.
*/
q_hscb = ahd->next_queued_hscb;
+ q_hscb_map = ahd->next_queued_hscb_map;
saved_hscb_busaddr = q_hscb->hscb_busaddr;
memcpy(q_hscb, scb->hscb, sizeof(*scb->hscb));
q_hscb->hscb_busaddr = saved_hscb_busaddr;
@@ -750,7 +761,9 @@ ahd_swap_with_next_hscb(struct ahd_softc
/* Now swap HSCB pointers. */
ahd->next_queued_hscb = scb->hscb;
+ ahd->next_queued_hscb_map = scb->hscb_map;
scb->hscb = q_hscb;
+ scb->hscb_map = q_hscb_map;
/* Now define the mapping from tag to SCB in the scbindex */
ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb;
@@ -824,8 +837,9 @@ static __inline int ahd_intr(struct ahd_
static __inline void
ahd_sync_qoutfifo(struct ahd_softc *ahd, int op)
{
- ahd_dmamap_sync(ahd, ahd->shared_data_dmat, ahd->shared_data_dmamap,
- /*offset*/0, /*len*/AHC_SCB_MAX * sizeof(uint16_t), op);
+ ahd_dmamap_sync(ahd, ahd->shared_data_dmat, ahd->shared_data_map.dmamap,
+ /*offset*/0,
+ /*len*/AHD_SCB_MAX * sizeof(uint16_t), op);
}
static __inline void
@@ -834,7 +848,7 @@ ahd_sync_tqinfifo(struct ahd_softc *ahd,
#ifdef AHD_TARGET_MODE
if ((ahd->flags & AHD_TARGETROLE) != 0) {
ahd_dmamap_sync(ahd, ahd->shared_data_dmat,
- ahd->shared_data_dmamap,
+ ahd->shared_data_map.dmamap,
ahd_targetcmd_offset(ahd, 0),
sizeof(struct target_cmd) * AHD_TMODE_CMDS,
op);
@@ -854,9 +868,9 @@ ahd_check_cmdcmpltqueues(struct ahd_soft
u_int retval;
retval = 0;
- ahd_dmamap_sync(ahd, ahd->shared_data_dmat, ahd->shared_data_dmamap,
- /*offset*/ahd->qoutfifonext, /*len*/2,
- BUS_DMASYNC_POSTREAD);
+ ahd_dmamap_sync(ahd, ahd->shared_data_dmat, ahd->shared_data_map.dmamap,
+ /*offset*/ahd->qoutfifonext * sizeof(*ahd->qoutfifo),
+ /*len*/sizeof(*ahd->qoutfifo), BUS_DMASYNC_POSTREAD);
if ((ahd->qoutfifo[ahd->qoutfifonext]
& QOUTFIFO_ENTRY_VALID_LE) == ahd->qoutfifonext_valid_tag)
retval |= AHD_RUN_QOUTFIFO;
@@ -864,7 +878,7 @@ ahd_check_cmdcmpltqueues(struct ahd_soft
if ((ahd->flags & AHD_TARGETROLE) != 0
&& (ahd->flags & AHD_TQINFIFO_BLOCKED) == 0) {
ahd_dmamap_sync(ahd, ahd->shared_data_dmat,
- ahd->shared_data_dmamap,
+ ahd->shared_data_map.dmamap,
ahd_targetcmd_offset(ahd, ahd->tqinfifofnext),
/*len*/sizeof(struct target_cmd),
BUS_DMASYNC_POSTREAD);
--
Dr. Hannes Reinecke hare@xxxxxxx
SuSE Linux Products GmbH S390 & zSeries
Maxfeldstraße 5 +49 911 74053 688
90409 Nürnberg http://www.suse.de
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