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authorHannes Reinecke <hare@suse.de>2015-03-27 16:46:30 +0100
committerTejun Heo <tj@kernel.org>2015-03-27 11:59:21 -0400
commit9faa643855df6f673f08543576c759b82dd270d3 (patch)
tree39c8dade6f6d9b826d68fcc11b51f08c41583d9e /drivers/ata
parent3a02824396c1df1db422d067b0fdcac724f44dd6 (diff)
downloadlinux-9faa643855df6f673f08543576c759b82dd270d3.tar.bz2
libata: use READ_LOG_DMA_EXT
If READ_LOG_DMA_EXT is supported we should try to use it for reading the log pages. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/libata-eh.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index d2029a462e2c..d35d7a76ecb2 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -1510,13 +1510,18 @@ unsigned int ata_read_log_page(struct ata_device *dev, u8 log,
DPRINTK("read log page - log 0x%x, page 0x%x\n", log, page);
ata_tf_init(dev, &tf);
- tf.command = ATA_CMD_READ_LOG_EXT;
+ if (dev->dma_mode && ata_id_has_read_log_dma_ext(dev->id)) {
+ tf.command = ATA_CMD_READ_LOG_DMA_EXT;
+ tf.protocol = ATA_PROT_DMA;
+ } else {
+ tf.command = ATA_CMD_READ_LOG_EXT;
+ tf.protocol = ATA_PROT_PIO;
+ }
tf.lbal = log;
tf.lbam = page;
tf.nsect = sectors;
tf.hob_nsect = sectors >> 8;
tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_LBA48 | ATA_TFLAG_DEVICE;
- tf.protocol = ATA_PROT_PIO;
err_mask = ata_exec_internal(dev, &tf, NULL, DMA_FROM_DEVICE,
buf, sectors * ATA_SECT_SIZE, 0);