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ata: libata-core: Improve link flags forced settings 

Similarly to the horkage flags, introduce the force_lflag_onoff() macro
to define struct ata_force_param entries of the force_tbl array that
allow turning on or off a link flag using the libata.force boot
parameter. To be consistent with naming, the macro force_lflag() is
renamed to force_lflag_on().

Using force_lflag_onoff(), define a new force_tbl entry for the
ATA_LFLAG_NO_DEBOUNCE_DELAY link flag, thus allowing testing if an
adapter requires a link debounce delay or not.

Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Hannes Reinecke <hare@suse.de>
This commit is contained in:
Damien Le Moal 2022-04-07 15:05:59 +09:00
parent 168af4afd1
commit 3af9ca4d34
1 changed files with 22 additions and 10 deletions
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32
drivers/ata/libata-core.c
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@ -96,7 +96,8 @@ struct ata_force_param {
unsigned long xfer_mask; unsigned long xfer_mask;
unsigned int horkage_on; unsigned int horkage_on;
unsigned int horkage_off; unsigned int horkage_off;
u16 lflags; u16 lflags_on;
u16 lflags_off;
}; };
struct ata_force_ent { struct ata_force_ent {
@ -386,11 +387,17 @@ static void ata_force_link_limits(struct ata_link *link)
} }
/* let lflags stack */ /* let lflags stack */
if (fe->param.lflags) { if (fe->param.lflags_on) {
link->flags |= fe->param.lflags; link->flags |= fe->param.lflags_on;
ata_link_notice(link, ata_link_notice(link,
"FORCE: link flag 0x%x forced -> 0x%x\n", "FORCE: link flag 0x%x forced -> 0x%x\n",
fe->param.lflags, link->flags); fe->param.lflags_on, link->flags);
}
if (fe->param.lflags_off) {
link->flags &= ~fe->param.lflags_off;
ata_link_notice(link,
"FORCE: link flag 0x%x cleared -> 0x%x\n",
fe->param.lflags_off, link->flags);
} }
} }
} }
@ -6110,8 +6117,12 @@ EXPORT_SYMBOL_GPL(ata_platform_remove_one);
#define force_xfer(mode, shift) \ #define force_xfer(mode, shift) \
{ #mode, .xfer_mask = (1UL << (shift)) } { #mode, .xfer_mask = (1UL << (shift)) }
#define force_lflag(name, flags) \ #define force_lflag_on(name, flags) \
{ #name, .lflags = (flags) } { #name, .lflags_on = (flags) }
#define force_lflag_onoff(name, flags) \
{ "no" #name, .lflags_on = (flags) }, \
{ #name, .lflags_off = (flags) }
#define force_horkage_on(name, flag) \ #define force_horkage_on(name, flag) \
{ #name, .horkage_on = (flag) } { #name, .horkage_on = (flag) }
@ -6166,10 +6177,11 @@ static const struct ata_force_param force_tbl[] __initconst = {
force_xfer(udma/133, ATA_SHIFT_UDMA + 6), force_xfer(udma/133, ATA_SHIFT_UDMA + 6),
force_xfer(udma7, ATA_SHIFT_UDMA + 7), force_xfer(udma7, ATA_SHIFT_UDMA + 7),
force_lflag(nohrst, ATA_LFLAG_NO_HRST), force_lflag_on(nohrst, ATA_LFLAG_NO_HRST),
force_lflag(nosrst, ATA_LFLAG_NO_SRST), force_lflag_on(nosrst, ATA_LFLAG_NO_SRST),
force_lflag(norst, ATA_LFLAG_NO_HRST | ATA_LFLAG_NO_SRST), force_lflag_on(norst, ATA_LFLAG_NO_HRST | ATA_LFLAG_NO_SRST),
force_lflag(rstonce, ATA_LFLAG_RST_ONCE), force_lflag_on(rstonce, ATA_LFLAG_RST_ONCE),
force_lflag_onoff(dbdelay, ATA_LFLAG_NO_DEBOUNCE_DELAY),
force_horkage_onoff(ncq, ATA_HORKAGE_NONCQ), force_horkage_onoff(ncq, ATA_HORKAGE_NONCQ),
force_horkage_onoff(ncqtrim, ATA_HORKAGE_NO_NCQ_TRIM), force_horkage_onoff(ncqtrim, ATA_HORKAGE_NO_NCQ_TRIM),