From a0f79f7ad3e52b908786462cf5446ebe20fe14fa Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Tue, 13 Jan 2009 10:38:36 +0100 Subject: [PATCH 1/2] ata: fix wrong WARN_ON_ONCE This patch fixes a wrong WARN_ON that was triggered by 32bit PIO support: WARNING: at drivers/ata/libata-sff.c:1017 ata_sff_hsm_move+0x45e/0x750() __atapi_pio_bytes simply doesnt know enough to decide if there is a bug. Signed-off-by: Christian Borntraeger Signed-off-by: Jeff Garzik --- drivers/ata/libata-sff.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 0eae9b453556..5a4aad123c42 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -1013,9 +1013,12 @@ next_sg: qc->cursg_ofs = 0; } - /* consumed can be larger than count only for the last transfer */ - WARN_ON_ONCE(qc->cursg && count != consumed); - + /* + * There used to be a WARN_ON_ONCE(qc->cursg && count != consumed); + * Unfortunately __atapi_pio_bytes doesn't know enough to do the WARN + * check correctly as it doesn't know if it is the last request being + * made. Somebody should implement a proper sanity check. + */ if (bytes) goto next_sg; return 0; From 4a99d95fa836e254d17910e52663ba2be7b880e7 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Sun, 11 Jan 2009 19:51:08 +0000 Subject: [PATCH 2/2] pata_it821x: Update RDC UDMA handling The UDMA affliction is apparently specific to revision 0x11. Keeps us in sync with drivers/ide current. Signed-off-by: Alan Cox Signed-off-by: Jeff Garzik --- drivers/ata/pata_it821x.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c index f828a29d7756..f1bb2f9fecbf 100644 --- a/drivers/ata/pata_it821x.c +++ b/drivers/ata/pata_it821x.c @@ -80,7 +80,7 @@ #define DRV_NAME "pata_it821x" -#define DRV_VERSION "0.4.0" +#define DRV_VERSION "0.4.2" struct it821x_dev { @@ -494,8 +494,6 @@ static int it821x_smart_set_mode(struct ata_link *link, struct ata_device **unus * special. In our case we need to lock the sector count to avoid * blowing the brains out of the firmware with large LBA48 requests * - * FIXME: When FUA appears we need to block FUA too. And SMART and - * basically we need to filter commands for this chip. */ static void it821x_dev_config(struct ata_device *adev) @@ -887,6 +885,13 @@ static int it821x_init_one(struct pci_dev *pdev, const struct pci_device_id *id) .port_ops = &it821x_passthru_port_ops }; static const struct ata_port_info info_rdc = { + .flags = ATA_FLAG_SLAVE_POSS, + .pio_mask = 0x1f, + .mwdma_mask = 0x07, + .udma_mask = ATA_UDMA6, + .port_ops = &it821x_rdc_port_ops + }; + static const struct ata_port_info info_rdc_11 = { .flags = ATA_FLAG_SLAVE_POSS, .pio_mask = 0x1f, .mwdma_mask = 0x07, @@ -903,7 +908,11 @@ static int it821x_init_one(struct pci_dev *pdev, const struct pci_device_id *id) return rc; if (pdev->vendor == PCI_VENDOR_ID_RDC) { - ppi[0] = &info_rdc; + /* Deal with Vortex86SX */ + if (pdev->revision == 0x11) + ppi[0] = &info_rdc_11; + else + ppi[0] = &info_rdc; } else { /* Force the card into bypass mode if so requested */ if (it8212_noraid) {