Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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: Shinas Rasheed <srasheed@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
authored by
Shinas Rasheed
and committed by
David S. Miller
e10f4019
a792197f
+7
+3
drivers/net/ethernet/marvell/octeon_ep/octep_rx.h
+3
drivers/net/ethernet/marvell/octeon_ep/octep_rx.h
···
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dma_addr_t buffer_ptr;
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u64 info_ptr;
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};
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+
static_assert(sizeof(struct octep_oq_desc_hw) == 16);
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#define OCTEP_OQ_DESC_SIZE (sizeof(struct octep_oq_desc_hw))
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···
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/* checksum verified. */
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u64 csum_verified:2;
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};
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static_assert(sizeof(struct octep_oq_resp_hw_ext) == 8);
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#define OCTEP_OQ_RESP_HW_EXT_SIZE (sizeof(struct octep_oq_resp_hw_ext))
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···
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/* The Length of the packet. */
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__be64 length;
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};
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static_assert(sizeof(struct octep_oq_resp_hw) == 8);
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#define OCTEP_OQ_RESP_HW_SIZE (sizeof(struct octep_oq_resp_hw))
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+4
drivers/net/ethernet/marvell/octeon_ep/octep_tx.h
+4
drivers/net/ethernet/marvell/octeon_ep/octep_tx.h
···
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u16 len[4];
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dma_addr_t dma_ptr[4];
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};
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static_assert(sizeof(struct octep_tx_sglist_desc) == 40);
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/* Each Scatter/Gather entry sent to hardwar hold four pointers.
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* So, number of entries required is (MAX_SKB_FRAGS + 1)/4, where '+1'
···
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/* Reserved3 */
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u64 reserved3:1;
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};
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static_assert(sizeof(struct octep_instr_hdr) == 8);
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/* Hardware Tx completion response header */
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struct octep_instr_resp_hdr {
···
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/* Opcode for the return packet */
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u64 opcode:16;
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};
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static_assert(sizeof(struct octep_instr_hdr) == 8);
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/* 64-byte Tx instruction format.
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* Format of instruction for a 64-byte mode input queue.
···
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/* Additional headers available in a 64-byte instruction. */
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u64 exhdr[4];
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};
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static_assert(sizeof(struct octep_tx_desc_hw) == 64);
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#define OCTEP_IQ_DESC_SIZE (sizeof(struct octep_tx_desc_hw))
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#endif /* _OCTEP_TX_H_ */