On Thursday 13 April 2006 18:02, James Bottomley wrote:
> On Wed, 2006-04-12 at 09:45 +0300, Denis Vlasenko wrote:
> > This patch
> >
> > moves big inlines into aic79xx_core.c and aic7xxx_core.c
> > makes ahd_delay just a wrapper around udelay
> > marks a few functions static
> > fixes spelling fix in error message
>
> There are two things that really spring to mind here
>
> 1. This alters the Adaptec HIM layer (the machine independent bit). I
> think no one cares about this anymore, so that's fine. However, if
> you're going to do this, do it properly, so get rid of the superfluous
> HIM layer abstractions like this:
>
> #define ahd_timer_init init_timer
> #define ahd_timer_stop del_timer_sync
> typedef void ahd_linux_callback_t (u_long);
>
> Just make it use the linux types natively.
This is easy. See attached patch. It also incorporates changes made by
Adrian Bunk.
> 2. There's no actual code content to this, which always makes me
> reluctant to accept changes. However, I notice this alters the inb/outb
> abstractions, so what you could do, if you were feeling brave is
> eliminate the Adaptec implementation of ioread8/iowrite8 and replace it
> with the linux one (i.e. use ioport_map if the card really wants port
> I/O). This has been on my Todo list for a long time; even if you
> haven't got the hardware, Hannes and I can test it for you.
I looked into it, and tried to do the conversion, but stumbled upon this:
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);
}
After some surgery on ahd_linux_pci_reserve_io/mem_regions() I can coerce
it into using iomem* pointers instead of bus_space_handle_t union,
but I still cannot use ioread8() instead of ahd_inb()
because of the ^^^ code above.
I don't think it makes sense to try to convert it to ioread8() and friends.
It will just add (not replace) yet another indirection...
> Note that you can't use ioread16 or any of the longer reads or writes.
> The adaptec cards have terrible problems with write combining, so
> everything needs to still be done in terms of ioread8/iowrite8
I looked at the code. This hardware must be, um, "interesting".
--
vda
diff -urpN linux-2.6.17-rc1-mm2-aic2/drivers/scsi/aic7xxx/aic79xx.h linux-2.6.17-rc1-mm2-aic4/drivers/scsi/aic7xxx/aic79xx.h
--- linux-2.6.17-rc1-mm2-aic2/drivers/scsi/aic7xxx/aic79xx.h Wed Apr 12 09:31:57 2006
+++ linux-2.6.17-rc1-mm2-aic4/drivers/scsi/aic7xxx/aic79xx.h Tue Apr 25 12:04:37 2006
@@ -1336,7 +1336,6 @@ extern const int ahd_num_aic7770_devs;
/*************************** Function Declarations ****************************/
/******************************************************************************/
-void ahd_reset_cmds_pending(struct ahd_softc *ahd);
/***************************** PCI Front End *********************************/
struct ahd_pci_identity *ahd_find_pci_device(ahd_dev_softc_t);
@@ -1373,14 +1372,9 @@ int ahd_read_flexport(struct ahd_soft
uint8_t *value);
/*************************** Interrupt Services *******************************/
-void ahd_run_qoutfifo(struct ahd_softc *ahd);
#ifdef AHD_TARGET_MODE
void ahd_run_tqinfifo(struct ahd_softc *ahd, int paused);
#endif
-void ahd_handle_hwerrint(struct ahd_softc *ahd);
-void ahd_handle_seqint(struct ahd_softc *ahd, u_int intstat);
-void ahd_handle_scsiint(struct ahd_softc *ahd,
- u_int intstat);
/***************************** Error Recovery *********************************/
typedef enum {
diff -urpN linux-2.6.17-rc1-mm2-aic2/drivers/scsi/aic7xxx/aic79xx_core.c linux-2.6.17-rc1-mm2-aic4/drivers/scsi/aic7xxx/aic79xx_core.c
--- linux-2.6.17-rc1-mm2-aic2/drivers/scsi/aic7xxx/aic79xx_core.c Wed Apr 12 09:32:39 2006
+++ linux-2.6.17-rc1-mm2-aic4/drivers/scsi/aic7xxx/aic79xx_core.c Tue Apr 25 12:04:37 2006
@@ -50,10 +50,15 @@
#include <dev/aic7xxx/aicasm/aicasm_insformat.h>
#endif
+static void ahd_handle_hwerrint(struct ahd_softc *ahd);
+static void ahd_handle_scsiint(struct ahd_softc *ahd, u_int intstat);
+static void ahd_handle_seqint(struct ahd_softc *ahd, u_int intstat);
+static void ahd_reset_cmds_pending(struct ahd_softc *ahd);
+static void ahd_run_qoutfifo(struct ahd_softc *ahd);
+
/***************************** Timer Facilities *******************************/
-#define ahd_timer_init init_timer
-#define ahd_timer_stop del_timer_sync
typedef void ahd_linux_callback_t (u_long);
+
static void
ahd_timer_reset(ahd_timer_t *timer, int usec, ahd_callback_t *func, void *arg)
{
@@ -118,7 +123,7 @@ ahd_outw_atomic(struct ahd_softc * ahd,
mb();
}
-void
+static void
ahd_outsb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
{
int i;
@@ -132,7 +137,8 @@ ahd_outsb(struct ahd_softc * ahd, long p
ahd_outb(ahd, port, *array++);
}
-void
+#ifdef AHD_DUMP_SEQ
+static void
ahd_insb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
{
int i;
@@ -145,6 +151,7 @@ ahd_insb(struct ahd_softc * ahd, long po
for (i = 0; i < count; i++)
*array++ = ahd_inb(ahd, port);
}
+#endif /* AHD_DUMP_SEQ */
/************************ Sequencer Execution Control *************************/
void
@@ -165,7 +172,7 @@ ahd_set_modes(struct ahd_softc *ahd, ahd
ahd->dst_mode = dst;
}
-void
+static void
ahd_update_modes(struct ahd_softc *ahd)
{
ahd_mode_state mode_ptr;
@@ -355,7 +362,7 @@ ahd_outl(struct ahd_softc *ahd, u_int po
ahd_outb(ahd, port+3, ((value) >> 24) & 0xFF);
}
-uint64_t
+static uint64_t
ahd_inq(struct ahd_softc *ahd, u_int port)
{
return ((ahd_inb(ahd, port))
@@ -368,7 +375,7 @@ ahd_inq(struct ahd_softc *ahd, u_int por
| (((uint64_t)ahd_inb(ahd, port+7)) << 56));
}
-void
+static void
ahd_outq(struct ahd_softc *ahd, u_int port, uint64_t value)
{
ahd_outb(ahd, port, value & 0xFF);
@@ -413,14 +420,14 @@ ahd_inw_scbram(struct ahd_softc *ahd, u_
| (ahd_inb_scbram(ahd, offset+1) << 8));
}
-uint32_t
+static uint32_t
ahd_inl_scbram(struct ahd_softc *ahd, u_int offset)
{
return (ahd_inw_scbram(ahd, offset)
| (ahd_inw_scbram(ahd, offset+2) << 16));
}
-uint64_t
+static uint64_t
ahd_inq_scbram(struct ahd_softc *ahd, u_int offset)
{
return (ahd_inl_scbram(ahd, offset)
@@ -1492,7 +1499,7 @@ clrchn:
* a copy of the first byte (little endian) of the sgptr
* hscb field.
*/
-void
+static void
ahd_run_qoutfifo(struct ahd_softc *ahd)
{
struct ahd_completion *completion;
@@ -1531,7 +1538,7 @@ ahd_run_qoutfifo(struct ahd_softc *ahd)
}
/************************* Interrupt Handling *********************************/
-void
+static void
ahd_handle_hwerrint(struct ahd_softc *ahd)
{
/*
@@ -1605,7 +1612,7 @@ ahd_dump_sglist(struct scb *scb)
}
#endif /* AHD_DEBUG */
-void
+static void
ahd_handle_seqint(struct ahd_softc *ahd, u_int intstat)
{
u_int seqintcode;
@@ -2212,7 +2219,7 @@ ahd_handle_seqint(struct ahd_softc *ahd,
ahd_unpause(ahd);
}
-void
+static void
ahd_handle_scsiint(struct ahd_softc *ahd, u_int intstat)
{
struct scb *scb;
@@ -5910,8 +5917,8 @@ ahd_alloc(void *platform_arg, char *name
ahd->bugs = AHD_BUGNONE;
ahd->flags = AHD_SPCHK_ENB_A|AHD_RESET_BUS_A|AHD_TERM_ENB_A
| AHD_EXTENDED_TRANS_A|AHD_STPWLEVEL_A;
- ahd_timer_init(&ahd->reset_timer);
- ahd_timer_init(&ahd->stat_timer);
+ init_timer(&ahd->reset_timer);
+ init_timer(&ahd->stat_timer);
ahd->int_coalescing_timer = AHD_INT_COALESCING_TIMER_DEFAULT;
ahd->int_coalescing_maxcmds = AHD_INT_COALESCING_MAXCMDS_DEFAULT;
ahd->int_coalescing_mincmds = AHD_INT_COALESCING_MINCMDS_DEFAULT;
@@ -6041,8 +6048,8 @@ ahd_shutdown(void *arg)
/*
* Stop periodic timer callbacks.
*/
- ahd_timer_stop(&ahd->reset_timer);
- ahd_timer_stop(&ahd->stat_timer);
+ del_timer_sync(&ahd->reset_timer);
+ del_timer_sync(&ahd->stat_timer);
/* This will reset most registers to 0, but not all */
ahd_reset(ahd, /*reinit*/FALSE);
@@ -7948,7 +7955,7 @@ ahd_qinfifo_count(struct ahd_softc *ahd)
+ NUM_ELEMENTS(ahd->qinfifo) - wrap_qinpos);
}
-void
+static void
ahd_reset_cmds_pending(struct ahd_softc *ahd)
{
struct scb *scb;
diff -urpN linux-2.6.17-rc1-mm2-aic2/drivers/scsi/aic7xxx/aic79xx_inline.h linux-2.6.17-rc1-mm2-aic4/drivers/scsi/aic7xxx/aic79xx_inline.h
--- linux-2.6.17-rc1-mm2-aic2/drivers/scsi/aic7xxx/aic79xx_inline.h Wed Apr 12 09:32:27 2006
+++ linux-2.6.17-rc1-mm2-aic4/drivers/scsi/aic7xxx/aic79xx_inline.h Tue Apr 25 12:04:37 2006
@@ -65,7 +65,6 @@ static inline void ahd_extract_mode_stat
ahd_mode *src, ahd_mode *dst);
void ahd_set_modes(struct ahd_softc *ahd, ahd_mode src,
ahd_mode dst);
-void ahd_update_modes(struct ahd_softc *ahd);
static inline void ahd_assert_modes(struct ahd_softc *ahd, ahd_mode srcmode,
ahd_mode dstmode, const char *file,
int line);
@@ -257,8 +256,6 @@ uint16_t ahd_inw(struct ahd_softc *ahd,
void ahd_outw(struct ahd_softc *ahd, u_int port, u_int value);
uint32_t ahd_inl(struct ahd_softc *ahd, u_int port);
void ahd_outl(struct ahd_softc *ahd, u_int port, uint32_t value);
-uint64_t ahd_inq(struct ahd_softc *ahd, u_int port);
-void ahd_outq(struct ahd_softc *ahd, u_int port, uint64_t value);
static inline u_int ahd_get_scbptr(struct ahd_softc *ahd);
static inline void ahd_set_scbptr(struct ahd_softc *ahd, u_int scbptr);
static inline u_int ahd_get_hnscb_qoff(struct ahd_softc *ahd);
@@ -273,8 +270,6 @@ static inline u_int ahd_get_sdscb_qoff(s
static inline void ahd_set_sdscb_qoff(struct ahd_softc *ahd, u_int value);
u_int ahd_inb_scbram(struct ahd_softc *ahd, u_int offset);
u_int ahd_inw_scbram(struct ahd_softc *ahd, u_int offset);
-uint32_t ahd_inl_scbram(struct ahd_softc *ahd, u_int offset);
-uint64_t ahd_inq_scbram(struct ahd_softc *ahd, u_int offset);
struct scb *ahd_lookup_scb(struct ahd_softc *ahd, u_int tag);
void ahd_queue_scb(struct ahd_softc *ahd, struct scb *scb);
static inline uint8_t *
diff -urpN linux-2.6.17-rc1-mm2-aic2/drivers/scsi/aic7xxx/aic79xx_osm.c linux-2.6.17-rc1-mm2-aic4/drivers/scsi/aic7xxx/aic79xx_osm.c
--- linux-2.6.17-rc1-mm2-aic2/drivers/scsi/aic7xxx/aic79xx_osm.c Wed Apr 12 09:31:57 2006
+++ linux-2.6.17-rc1-mm2-aic4/drivers/scsi/aic7xxx/aic79xx_osm.c Tue Apr 25 12:04:37 2006
@@ -383,6 +383,8 @@ static int ahd_linux_run_command(struct
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;
@@ -2077,13 +2079,13 @@ ahd_linux_queue_cmd_complete(struct ahd_
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);
diff -urpN linux-2.6.17-rc1-mm2-aic2/drivers/scsi/aic7xxx/aic79xx_osm.h linux-2.6.17-rc1-mm2-aic4/drivers/scsi/aic7xxx/aic79xx_osm.h
--- linux-2.6.17-rc1-mm2-aic2/drivers/scsi/aic7xxx/aic79xx_osm.h Wed Apr 12 09:31:57 2006
+++ linux-2.6.17-rc1-mm2-aic4/drivers/scsi/aic7xxx/aic79xx_osm.h Tue Apr 25 12:04:37 2006
@@ -387,10 +387,6 @@ uint16_t ahd_inw_atomic(struct ahd_softc
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);
/**************************** Initialization **********************************/
int ahd_linux_register_host(struct ahd_softc *,
@@ -740,8 +736,6 @@ int ahd_platform_alloc(struct ahd_softc
void ahd_platform_free(struct ahd_softc *ahd);
void ahd_platform_init(struct ahd_softc *ahd);
void ahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb);
-void ahd_freeze_simq(struct ahd_softc *ahd);
-void ahd_release_simq(struct ahd_softc *ahd);
static inline void
ahd_freeze_scb(struct scb *scb)
diff -urpN linux-2.6.17-rc1-mm2-aic2/drivers/scsi/aic7xxx/aic7xxx.h linux-2.6.17-rc1-mm2-aic4/drivers/scsi/aic7xxx/aic7xxx.h
--- linux-2.6.17-rc1-mm2-aic2/drivers/scsi/aic7xxx/aic7xxx.h Wed Apr 12 09:25:49 2006
+++ linux-2.6.17-rc1-mm2-aic4/drivers/scsi/aic7xxx/aic7xxx.h Tue Apr 25 12:04:37 2006
@@ -1192,21 +1192,15 @@ int ahc_suspend(struct ahc_softc *ahc
int ahc_resume(struct ahc_softc *ahc);
void ahc_set_unit(struct ahc_softc *, int);
void ahc_set_name(struct ahc_softc *, char *);
-void ahc_alloc_scbs(struct ahc_softc *ahc);
void ahc_free(struct ahc_softc *ahc);
int ahc_reset(struct ahc_softc *ahc, int reinit);
void ahc_shutdown(void *arg);
/*************************** Interrupt Services *******************************/
void ahc_clear_intstat(struct ahc_softc *ahc);
-void ahc_run_qoutfifo(struct ahc_softc *ahc);
#ifdef AHC_TARGET_MODE
void ahc_run_tqinfifo(struct ahc_softc *ahc, int paused);
#endif
-void ahc_handle_brkadrint(struct ahc_softc *ahc);
-void ahc_handle_seqint(struct ahc_softc *ahc, u_int intstat);
-void ahc_handle_scsiint(struct ahc_softc *ahc,
- u_int intstat);
void ahc_clear_critical_section(struct ahc_softc *ahc);
/***************************** Error Recovery *********************************/
diff -urpN linux-2.6.17-rc1-mm2-aic2/drivers/scsi/aic7xxx/aic7xxx_core.c linux-2.6.17-rc1-mm2-aic4/drivers/scsi/aic7xxx/aic7xxx_core.c
--- linux-2.6.17-rc1-mm2-aic2/drivers/scsi/aic7xxx/aic7xxx_core.c Wed Apr 12 09:28:17 2006
+++ linux-2.6.17-rc1-mm2-aic4/drivers/scsi/aic7xxx/aic7xxx_core.c Tue Apr 25 12:04:37 2006
@@ -50,6 +50,12 @@
#include <dev/aic7xxx/aicasm/aicasm_insformat.h>
#endif
+static void ahc_alloc_scbs(struct ahc_softc *ahc);
+static void ahc_handle_brkadrint(struct ahc_softc *ahc);
+static void ahc_handle_scsiint(struct ahc_softc *ahc, u_int intstat);
+static void ahc_handle_seqint(struct ahc_softc *ahc, u_int intstat);
+static void ahc_run_qoutfifo(struct ahc_softc *ahc);
+
/***************************** Low Level I/O **********************************/
uint8_t
ahc_inb(struct ahc_softc * ahc, long port)
@@ -76,7 +82,7 @@ ahc_outb(struct ahc_softc * ahc, long po
mb();
}
-void
+static void
ahc_outsb(struct ahc_softc * ahc, long port, uint8_t *array, int count)
{
int i;
@@ -90,7 +96,8 @@ ahc_outsb(struct ahc_softc * ahc, long p
ahc_outb(ahc, port, *array++);
}
-void
+#ifdef AHC_DUMP_SEQ
+static void
ahc_insb(struct ahc_softc * ahc, long port, uint8_t *array, int count)
{
int i;
@@ -103,6 +110,7 @@ ahc_insb(struct ahc_softc * ahc, long po
for (i = 0; i < count; i++)
*array++ = ahc_inb(ahc, port);
}
+#endif /* AHC_DUMP_SEQ */
/*********************** Miscelaneous Support Functions ***********************/
uint16_t
@@ -136,6 +144,8 @@ ahc_outl(struct ahc_softc *ahc, u_int po
ahc_outb(ahc, port+3, ((value) >> 24) & 0xFF);
}
+#if 0
+
uint64_t
ahc_inq(struct ahc_softc *ahc, u_int port)
{
@@ -162,6 +172,8 @@ ahc_outq(struct ahc_softc *ahc, u_int po
ahc_outb(ahc, port+7, (value >> 56) & 0xFF);
}
+#endif /* 0 */
+
/*
* Get a free scb. If there are none, see if we can allocate a new SCB.
*/
@@ -661,7 +673,7 @@ ahc_restart(struct ahc_softc *ahc)
}
/************************* Input/Output Queues ********************************/
-void
+static void
ahc_run_qoutfifo(struct ahc_softc *ahc)
{
struct scb *scb;
@@ -733,7 +745,7 @@ ahc_run_untagged_queue(struct ahc_softc
}
/************************* Interrupt Handling *********************************/
-void
+static void
ahc_handle_brkadrint(struct ahc_softc *ahc)
{
/*
@@ -762,7 +774,7 @@ ahc_handle_brkadrint(struct ahc_softc *a
ahc_shutdown(ahc);
}
-void
+static void
ahc_handle_seqint(struct ahc_softc *ahc, u_int intstat)
{
struct scb *scb;
@@ -1312,7 +1324,7 @@ unpause:
ahc_unpause(ahc);
}
-void
+static void
ahc_handle_scsiint(struct ahc_softc *ahc, u_int intstat)
{
u_int scb_index;
@@ -4724,7 +4736,7 @@ ahc_fini_scbdata(struct ahc_softc *ahc)
free(scb_data->scbarray, M_DEVBUF);
}
-void
+static void
ahc_alloc_scbs(struct ahc_softc *ahc)
{
struct scb_data *scb_data;
diff -urpN linux-2.6.17-rc1-mm2-aic2/drivers/scsi/aic7xxx/aic7xxx_inline.h linux-2.6.17-rc1-mm2-aic4/drivers/scsi/aic7xxx/aic7xxx_inline.h
--- linux-2.6.17-rc1-mm2-aic2/drivers/scsi/aic7xxx/aic7xxx_inline.h Wed Apr 12 09:31:57 2006
+++ linux-2.6.17-rc1-mm2-aic4/drivers/scsi/aic7xxx/aic7xxx_inline.h Tue Apr 25 12:04:37 2006
@@ -242,8 +242,6 @@ uint16_t ahc_inw(struct ahc_softc *ahc,
void ahc_outw(struct ahc_softc *ahc, u_int port, u_int value);
uint32_t ahc_inl(struct ahc_softc *ahc, u_int port);
void ahc_outl(struct ahc_softc *ahc, u_int port, uint32_t value);
-uint64_t ahc_inq(struct ahc_softc *ahc, u_int port);
-void ahc_outq(struct ahc_softc *ahc, u_int port, uint64_t value);
struct scb*
ahc_get_scb(struct ahc_softc *ahc);
void ahc_free_scb(struct ahc_softc *ahc, struct scb *scb);
diff -urpN linux-2.6.17-rc1-mm2-aic2/drivers/scsi/aic7xxx/aic7xxx_osm.h linux-2.6.17-rc1-mm2-aic4/drivers/scsi/aic7xxx/aic7xxx_osm.h
--- linux-2.6.17-rc1-mm2-aic2/drivers/scsi/aic7xxx/aic7xxx_osm.h Wed Apr 12 09:31:57 2006
+++ linux-2.6.17-rc1-mm2-aic4/drivers/scsi/aic7xxx/aic7xxx_osm.h Tue Apr 25 12:04:37 2006
@@ -392,10 +392,6 @@ static inline void ahc_delay(int usec)
/***************************** Low Level I/O **********************************/
uint8_t ahc_inb(struct ahc_softc * ahc, long port);
void ahc_outb(struct ahc_softc * ahc, long port, uint8_t val);
-void ahc_outsb(struct ahc_softc * ahc, long port,
- uint8_t *, int count);
-void ahc_insb(struct ahc_softc * ahc, long port,
- uint8_t *, int count);
/**************************** Initialization **********************************/
int ahc_linux_register_host(struct ahc_softc *,
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