From 8930ff254a3a80d4477c3391ade07d6dd2a036c7 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 10 May 2010 21:41:33 +0200 Subject: [PATCH] libata-sff: clean up inheritance in several drivers 1. pata_cmd640 is PIO only. Inherit from sff. 2. pata_macio is BMDMA. Inherit from bmdma and drop explicit bmdma_mode_filter() setting. 3. In sata_mv, unlike mv5, mv6 is BMDMA. Inherit from bmdma and don't clear ->post_internal_cmd(). 4. bf54x and icside are quasi-BMDMA controllers which don't use the standard BMDMA registers so they don't initialize bmdma_addr and inherit from sff to avoid the default mode_filter which disables DMA modes if bmdma_addr is not initialized. For 2 and 3, this patch makes the drivers explicitly specify ->mode_filter to ATA_OP_NULL while inheriting from ata_bmdma_port_ops. These will be removed by the next patch. This patch makes all and only BMDMA drivers inherit from ata_bmdma_port_ops to ease further SFF/BMDMA separation. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/pata_bf54x.c | 4 +++- drivers/ata/pata_cmd640.c | 4 ++-- drivers/ata/pata_icside.c | 4 +++- drivers/ata/pata_macio.c | 3 +-- drivers/ata/sata_mv.c | 24 ++++++++++++++++++++---- 5 files changed, 29 insertions(+), 10 deletions(-) diff --git a/drivers/ata/pata_bf54x.c b/drivers/ata/pata_bf54x.c index e9bf44c..3d94c80 100644 --- a/drivers/ata/pata_bf54x.c +++ b/drivers/ata/pata_bf54x.c @@ -1421,7 +1421,7 @@ static struct scsi_host_template bfin_sht = { }; static struct ata_port_operations bfin_pata_ops = { - .inherits = &ata_sff_port_ops, + .inherits = &ata_bmdma_port_ops, .set_piomode = bfin_set_piomode, .set_dmamode = bfin_set_dmamode, @@ -1450,6 +1450,8 @@ static struct ata_port_operations bfin_pata_ops = { .port_start = bfin_port_start, .port_stop = bfin_port_stop, + + .mode_filter = ATA_OP_NULL, /* will be removed soon */ }; static struct ata_port_info bfin_port_info[] = { diff --git a/drivers/ata/pata_cmd640.c b/drivers/ata/pata_cmd640.c index 7d2fac6..60ab2d2 100644 --- a/drivers/ata/pata_cmd640.c +++ b/drivers/ata/pata_cmd640.c @@ -166,11 +166,11 @@ static int cmd640_port_start(struct ata_port *ap) } static struct scsi_host_template cmd640_sht = { - ATA_BMDMA_SHT(DRV_NAME), + ATA_PIO_SHT(DRV_NAME), }; static struct ata_port_operations cmd640_port_ops = { - .inherits = &ata_bmdma_port_ops, + .inherits = &ata_sff_port_ops, /* In theory xfer_noirq is not needed once we kill the prefetcher */ .sff_data_xfer = ata_sff_data_xfer_noirq, .qc_issue = cmd640_qc_issue, diff --git a/drivers/ata/pata_icside.c b/drivers/ata/pata_icside.c index fa812e2..832c8cc 100644 --- a/drivers/ata/pata_icside.c +++ b/drivers/ata/pata_icside.c @@ -321,7 +321,7 @@ static void pata_icside_postreset(struct ata_link *link, unsigned int *classes) } static struct ata_port_operations pata_icside_port_ops = { - .inherits = &ata_sff_port_ops, + .inherits = &ata_bmdma_port_ops, /* no need to build any PRD tables for DMA */ .qc_prep = ata_noop_qc_prep, .sff_data_xfer = ata_sff_data_xfer_noirq, @@ -334,6 +334,8 @@ static struct ata_port_operations pata_icside_port_ops = { .set_dmamode = pata_icside_set_dmamode, .postreset = pata_icside_postreset, .post_internal_cmd = pata_icside_bmdma_stop, + + .mode_filter = ATA_OP_NULL, /* will be removed soon */ }; static void __devinit diff --git a/drivers/ata/pata_macio.c b/drivers/ata/pata_macio.c index 211b643..17e4e5d 100644 --- a/drivers/ata/pata_macio.c +++ b/drivers/ata/pata_macio.c @@ -917,7 +917,7 @@ static struct scsi_host_template pata_macio_sht = { }; static struct ata_port_operations pata_macio_ops = { - .inherits = &ata_sff_port_ops, + .inherits = &ata_bmdma_port_ops, .freeze = pata_macio_freeze, .set_piomode = pata_macio_set_timings, @@ -925,7 +925,6 @@ static struct ata_port_operations pata_macio_ops = { .cable_detect = pata_macio_cable_detect, .sff_dev_select = pata_macio_dev_select, .qc_prep = pata_macio_qc_prep, - .mode_filter = ata_bmdma_mode_filter, .bmdma_setup = pata_macio_bmdma_setup, .bmdma_start = pata_macio_bmdma_start, .bmdma_stop = pata_macio_bmdma_stop, diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 318862e..a033710 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -686,16 +686,27 @@ static struct ata_port_operations mv5_ops = { }; static struct ata_port_operations mv6_ops = { - .inherits = &mv5_ops, + .inherits = &ata_bmdma_port_ops, + + .lost_interrupt = ATA_OP_NULL, + + .qc_defer = mv_qc_defer, + .qc_prep = mv_qc_prep, + .qc_issue = mv_qc_issue, + .dev_config = mv6_dev_config, - .scr_read = mv_scr_read, - .scr_write = mv_scr_write, + .freeze = mv_eh_freeze, + .thaw = mv_eh_thaw, + .hardreset = mv_hardreset, + .softreset = mv_softreset, .pmp_hardreset = mv_pmp_hardreset, .pmp_softreset = mv_softreset, - .softreset = mv_softreset, .error_handler = mv_pmp_error_handler, + .scr_read = mv_scr_read, + .scr_write = mv_scr_write, + .sff_check_status = mv_sff_check_status, .sff_irq_clear = mv_sff_irq_clear, .check_atapi_dma = mv_check_atapi_dma, @@ -703,6 +714,11 @@ static struct ata_port_operations mv6_ops = { .bmdma_start = mv_bmdma_start, .bmdma_stop = mv_bmdma_stop, .bmdma_status = mv_bmdma_status, + + .port_start = mv_port_start, + .port_stop = mv_port_stop, + + .mode_filter = ATA_OP_NULL, /* will be removed soon */ }; static struct ata_port_operations mv_iie_ops = { -- 1.8.2.3