diff options
| author | Damien Le Moal <damien.lemoal@opensource.wdc.com> | 2022-04-07 09:05:59 +0300 |
|---|---|---|
| committer | Damien Le Moal <damien.lemoal@opensource.wdc.com> | 2022-05-09 14:42:36 +0300 |
| commit | 3af9ca4d341d2b8756fa9056ca0715915480e251 (patch) | |
| tree | 140c2aa9703629c1c0904da3d37d194782aab549 /drivers/ata | |
| parent | 168af4afd1fce013f677b224180a19e33bd7d40f (diff) | |
| download | linux-3af9ca4d341d2b8756fa9056ca0715915480e251.tar.xz | |
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>
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/libata-core.c | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 0e9d24d1bc8e..78591ba91851 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -96,7 +96,8 @@ struct ata_force_param { unsigned long xfer_mask; unsigned int horkage_on; unsigned int horkage_off; - u16 lflags; + u16 lflags_on; + u16 lflags_off; }; struct ata_force_ent { @@ -386,11 +387,17 @@ static void ata_force_link_limits(struct ata_link *link) } /* let lflags stack */ - if (fe->param.lflags) { - link->flags |= fe->param.lflags; + if (fe->param.lflags_on) { + link->flags |= fe->param.lflags_on; ata_link_notice(link, "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) \ { #mode, .xfer_mask = (1UL << (shift)) } -#define force_lflag(name, flags) \ - { #name, .lflags = (flags) } +#define force_lflag_on(name, 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) \ { #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(udma7, ATA_SHIFT_UDMA + 7), - force_lflag(nohrst, ATA_LFLAG_NO_HRST), - force_lflag(nosrst, ATA_LFLAG_NO_SRST), - force_lflag(norst, ATA_LFLAG_NO_HRST | ATA_LFLAG_NO_SRST), - force_lflag(rstonce, ATA_LFLAG_RST_ONCE), + force_lflag_on(nohrst, ATA_LFLAG_NO_HRST), + force_lflag_on(nosrst, ATA_LFLAG_NO_SRST), + force_lflag_on(norst, ATA_LFLAG_NO_HRST | ATA_LFLAG_NO_SRST), + 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(ncqtrim, ATA_HORKAGE_NO_NCQ_TRIM), |