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authorPhilip J Kelleher <pjk1939@linux.vnet.ibm.com>2013-06-18 23:36:26 +0400
committerJens Axboe <axboe@kernel.dk>2013-06-19 15:52:09 +0400
commit0ab4743ebc18c23bddf3e288cfc6221ec71533ac (patch)
tree0977d5fe4a55f914e3bc9e2f4a7847ff555d5417 /drivers/block/rsxx/rsxx_priv.h
parenta3299ab18591d36ad5622f5064619123c439b779 (diff)
downloadlinux-0ab4743ebc18c23bddf3e288cfc6221ec71533ac.tar.xz
rsxx: Restructured DMA cancel scheme.
Before, DMAs would never be cancelled if there was a data stall or an EEH Permenant failure which would cause an unrecoverable I/O hang. The DMA cancellation mechanism has been modified to fix these issues and allows DMAs to be cancelled during the above mentioned events. Signed-off-by: Philip J Kelleher <pjk1939@linux.vnet.ibm.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/rsxx/rsxx_priv.h')
-rw-r--r--drivers/block/rsxx/rsxx_priv.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/block/rsxx/rsxx_priv.h b/drivers/block/rsxx/rsxx_priv.h
index 0dd62d966772..60b6ed6779ac 100644
--- a/drivers/block/rsxx/rsxx_priv.h
+++ b/drivers/block/rsxx/rsxx_priv.h
@@ -39,6 +39,7 @@
#include <linux/vmalloc.h>
#include <linux/timer.h>
#include <linux/ioctl.h>
+#include <linux/delay.h>
#include "rsxx.h"
#include "rsxx_cfg.h"
@@ -374,6 +375,8 @@ typedef void (*rsxx_dma_cb)(struct rsxx_cardinfo *card,
int rsxx_dma_setup(struct rsxx_cardinfo *card);
void rsxx_dma_destroy(struct rsxx_cardinfo *card);
int rsxx_dma_init(void);
+int rsxx_cleanup_dma_queue(struct rsxx_dma_ctrl *ctrl, struct list_head *q);
+int rsxx_dma_cancel(struct rsxx_dma_ctrl *ctrl);
void rsxx_dma_cleanup(void);
void rsxx_dma_queue_reset(struct rsxx_cardinfo *card);
int rsxx_dma_configure(struct rsxx_cardinfo *card);
@@ -384,7 +387,6 @@ int rsxx_dma_queue_bio(struct rsxx_cardinfo *card,
void *cb_data);
int rsxx_hw_buffers_init(struct pci_dev *dev, struct rsxx_dma_ctrl *ctrl);
int rsxx_eeh_save_issued_dmas(struct rsxx_cardinfo *card);
-void rsxx_eeh_cancel_dmas(struct rsxx_cardinfo *card);
int rsxx_eeh_remap_dmas(struct rsxx_cardinfo *card);
/***** cregs.c *****/