Messages in this thread Patch in this message | | | Subject | [PATCH][21/27] IB/mthca: split MR key munging routines | Date | Fri, 1 Apr 2005 12:49:53 -0800 | From | Roland Dreier <> |
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From: Michael S. Tsirkin <mst@mellanox.co.il>
Split Tavor and Arbel/mem-free index<->hw key munging routines, so that FMR implementation can call correct implementation without testing HCA type (which it already knows).
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com>
--- linux-export.orig/drivers/infiniband/hw/mthca/mthca_mr.c 2005-04-01 12:38:27.075083423 -0800 +++ linux-export/drivers/infiniband/hw/mthca/mthca_mr.c 2005-04-01 12:38:28.676735749 -0800 @@ -198,20 +198,40 @@ seg + (1 << order) - 1); } +static inline u32 tavor_hw_index_to_key(u32 ind) +{ + return ind; +} + +static inline u32 tavor_key_to_hw_index(u32 key) +{ + return key; +} + +static inline u32 arbel_hw_index_to_key(u32 ind) +{ + return (ind >> 24) | (ind << 8); +} + +static inline u32 arbel_key_to_hw_index(u32 key) +{ + return (key << 24) | (key >> 8); +} + static inline u32 hw_index_to_key(struct mthca_dev *dev, u32 ind) { if (dev->hca_type == ARBEL_NATIVE) - return (ind >> 24) | (ind << 8); + return arbel_hw_index_to_key(ind); else - return ind; + return tavor_hw_index_to_key(ind); } static inline u32 key_to_hw_index(struct mthca_dev *dev, u32 key) { if (dev->hca_type == ARBEL_NATIVE) - return (key << 24) | (key >> 8); + return arbel_key_to_hw_index(key); else - return key; + return tavor_key_to_hw_index(key); } int mthca_mr_alloc_notrans(struct mthca_dev *dev, u32 pd, - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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