Commit e10f4019 authored by Shinas Rasheed's avatar Shinas Rasheed Committed by David S. Miller
Browse files

octeon_ep: assert hardware structure sizes 



Clean up structure defines related to hardware data to be
asserted to fixed sizes, as padding is not allowed
by hardware.

Signed-off-by: default avatarShinas Rasheed <srasheed@marvell.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a792197f

drivers/net/ethernet/marvell/octeon_ep/octep_rx.h

+3 −0
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ struct octep_oq_desc_hw { 
	dma_addr_t buffer_ptr;

	u64 info_ptr;

};

static_assert(sizeof(struct octep_oq_desc_hw) == 16);



#define OCTEP_OQ_DESC_SIZE    (sizeof(struct octep_oq_desc_hw))
@@ -39,6 +40,7 @@ struct octep_oq_resp_hw_ext { 
	/* checksum verified. */

	u64 csum_verified:2;

};

static_assert(sizeof(struct octep_oq_resp_hw_ext) == 8);



#define  OCTEP_OQ_RESP_HW_EXT_SIZE   (sizeof(struct octep_oq_resp_hw_ext))
@@ -50,6 +52,7 @@ struct octep_oq_resp_hw { 
	/* The Length of the packet. */

	__be64 length;

};

static_assert(sizeof(struct octep_oq_resp_hw) == 8);



#define OCTEP_OQ_RESP_HW_SIZE   (sizeof(struct octep_oq_resp_hw))

drivers/net/ethernet/marvell/octeon_ep/octep_tx.h

+4 −0
Original line number Diff line number Diff line
@@ -36,6 +36,7 @@ struct octep_tx_sglist_desc { 
	u16 len[4];

	dma_addr_t dma_ptr[4];

};

static_assert(sizeof(struct octep_tx_sglist_desc) == 40);



/* Each Scatter/Gather entry sent to hardwar hold four pointers.

 * So, number of entries required is (MAX_SKB_FRAGS + 1)/4, where '+1'
@@ -239,6 +240,7 @@ struct octep_instr_hdr { 
	/* Reserved3 */

	u64 reserved3:1;

};

static_assert(sizeof(struct octep_instr_hdr) == 8);



/* Hardware Tx completion response header */

struct octep_instr_resp_hdr {
@@ -263,6 +265,7 @@ struct octep_instr_resp_hdr { 
	/* Opcode for the return packet  */

	u64 opcode:16;

};

static_assert(sizeof(struct octep_instr_hdr) == 8);



/* 64-byte Tx instruction format.

 * Format of instruction for a 64-byte mode input queue.
@@ -293,6 +296,7 @@ struct octep_tx_desc_hw { 
	/* Additional headers available in a 64-byte instruction. */

	u64 exhdr[4];

};

static_assert(sizeof(struct octep_tx_desc_hw) == 64);



#define OCTEP_IQ_DESC_SIZE (sizeof(struct octep_tx_desc_hw))

#endif /* _OCTEP_TX_H_ */