From 3af9ca4d341d2b8756fa9056ca0715915480e251 Mon Sep 17 00:00:00 2001 From: Damien Le Moal Date: Thu, 7 Apr 2022 15:05:59 +0900 Subject: 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 Reviewed-by: Sergey Shtylyov Reviewed-by: Hannes Reinecke --- drivers/ata/libata-core.c | 32 ++++++++++++++++++++++---------- 1 file changed, 22 insertions(+), 10 deletions(-) (limited to 'drivers/ata') 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), -- cgit v1.2.3