diff options
Diffstat (limited to 'drivers/net/ethernet/microchip/fdma/fdma_api.h')
| -rw-r--r-- | drivers/net/ethernet/microchip/fdma/fdma_api.h | 42 |
1 files changed, 31 insertions, 11 deletions
diff --git a/drivers/net/ethernet/microchip/fdma/fdma_api.h b/drivers/net/ethernet/microchip/fdma/fdma_api.h index d91affe8bd98..4e4f009b77cb 100644 --- a/drivers/net/ethernet/microchip/fdma/fdma_api.h +++ b/drivers/net/ethernet/microchip/fdma/fdma_api.h @@ -7,6 +7,8 @@ #include <linux/etherdevice.h> #include <linux/types.h> +#include "fdma_pci.h" + /* This provides a common set of functions and data structures for interacting * with the Frame DMA engine on multiple Microchip switchcores. * @@ -64,13 +66,13 @@ struct fdma; struct fdma_db { - u64 dataptr; - u64 status; + __le64 dataptr; + __le64 status; }; struct fdma_dcb { - u64 nextptr; - u64 info; + __le64 nextptr; + __le64 info; struct fdma_db db[FDMA_DB_MAX]; }; @@ -109,6 +111,11 @@ struct fdma { u32 channel_id; struct fdma_ops ops; + +#if IS_ENABLED(CONFIG_MCHP_LAN966X_PCI) + /* PCI ATU region for this FDMA instance. */ + struct fdma_pci_atu_region *atu_region; +#endif }; /* Advance the DCB index and wrap if required. */ @@ -140,19 +147,25 @@ static inline bool fdma_dcb_is_reusable(struct fdma *fdma) /* Check if the FDMA has marked this DB as done. */ static inline bool fdma_db_is_done(struct fdma_db *db) { - return db->status & FDMA_DCB_STATUS_DONE; + return le64_to_cpu(db->status) & FDMA_DCB_STATUS_DONE; } /* Get the length of a DB. */ static inline int fdma_db_len_get(struct fdma_db *db) { - return FDMA_DCB_STATUS_BLOCKL(db->status); + return FDMA_DCB_STATUS_BLOCKL(le64_to_cpu(db->status)); +} + +/* Get the dataptr of a DB. */ +static inline u64 fdma_db_dataptr_get(struct fdma_db *db) +{ + return le64_to_cpu(db->dataptr); } /* Set the length of a DB. */ static inline void fdma_dcb_len_set(struct fdma_dcb *dcb, u32 len) { - dcb->info = FDMA_DCB_INFO_DATAL(len); + dcb->info = cpu_to_le64(FDMA_DCB_INFO_DATAL(len)); } /* Get a DB by index. */ @@ -197,8 +210,8 @@ static inline int fdma_nextptr_cb(struct fdma *fdma, int dcb_idx, u64 *nextptr) * if the dataptr addresses and DCB's are in contiguous memory and the driver * supports XDP. */ -static inline u64 fdma_dataptr_get_contiguous(struct fdma *fdma, int dcb_idx, - int db_idx) +static inline u64 fdma_dataptr_dma_addr_contiguous(struct fdma *fdma, + int dcb_idx, int db_idx) { return fdma->dma + (sizeof(struct fdma_dcb) * fdma->n_dcbs) + (dcb_idx * fdma->n_dbs + db_idx) * fdma->db_size + @@ -209,8 +222,8 @@ static inline u64 fdma_dataptr_get_contiguous(struct fdma *fdma, int dcb_idx, * applicable if the dataptr addresses and DCB's are in contiguous memory and * the driver supports XDP. */ -static inline void *fdma_dataptr_virt_get_contiguous(struct fdma *fdma, - int dcb_idx, int db_idx) +static inline void *fdma_dataptr_virt_addr_contiguous(struct fdma *fdma, + int dcb_idx, int db_idx) { return (u8 *)fdma->dcbs + (sizeof(struct fdma_dcb) * fdma->n_dcbs) + (dcb_idx * fdma->n_dbs + db_idx) * fdma->db_size + @@ -233,9 +246,16 @@ int __fdma_dcb_add(struct fdma *fdma, int dcb_idx, u64 info, u64 status, int fdma_alloc_coherent(struct device *dev, struct fdma *fdma); int fdma_alloc_phys(struct fdma *fdma); +#if IS_ENABLED(CONFIG_MCHP_LAN966X_PCI) +int fdma_alloc_coherent_and_map(struct device *dev, struct fdma *fdma, + struct fdma_pci_atu *atu); +#endif void fdma_free_coherent(struct device *dev, struct fdma *fdma); void fdma_free_phys(struct fdma *fdma); +#if IS_ENABLED(CONFIG_MCHP_LAN966X_PCI) +void fdma_free_coherent_and_unmap(struct device *dev, struct fdma *fdma); +#endif u32 fdma_get_size(struct fdma *fdma); u32 fdma_get_size_contiguous(struct fdma *fdma); |