[PATCH] Add Myri-10G Ethernet driver (0da34b6d) · Commits · 戴 / test

drivers/net/Kconfig

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		@@ -2327,6 +2327,23 @@ config S2IO_NAPI

		If in doubt, say N.

		config MYRI10GE
		tristate "Myricom Myri-10G Ethernet support"
		depends on PCI
		select FW_LOADER
		select CRC32
		---help---
		This driver supports Myricom Myri-10G Dual Protocol interface in
		Ethernet mode. If the eeprom on your board is not recent enough,
		you will need a newer firmware image.
		You may get this image or more information, at:

		<http://www.myri.com/Myri-10G/>

		To compile this driver as a module, choose M here and read
		<file:Documentation/networking/net-modules.txt>. The module
		will be called myri10ge.

		endmenu

		source "drivers/net/tokenring/Kconfig"

drivers/net/Makefile

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		@@ -192,6 +192,7 @@ obj-$(CONFIG_R8169) += r8169.o
		obj-$(CONFIG_AMD8111_ETH) += amd8111e.o
		obj-$(CONFIG_IBMVETH) += ibmveth.o
		obj-$(CONFIG_S2IO) += s2io.o
		obj-$(CONFIG_MYRI10GE) += myri10ge/
		obj-$(CONFIG_SMC91X) += smc91x.o
		obj-$(CONFIG_SMC911X) += smc911x.o
		obj-$(CONFIG_DM9000) += dm9000.o

drivers/net/myri10ge/Makefile

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		#
		# Makefile for the Myricom Myri-10G ethernet driver
		#

		obj-$(CONFIG_MYRI10GE) += myri10ge.o

drivers/net/myri10ge/myri10ge.c

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File added.

Preview size limit exceeded, changes collapsed.

drivers/net/myri10ge/myri10ge_mcp.h

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		#ifndef __MYRI10GE_MCP_H__
		#define __MYRI10GE_MCP_H__

		#define MXGEFW_VERSION_MAJOR 1
		#define MXGEFW_VERSION_MINOR 4

		/* 8 Bytes */
		struct mcp_dma_addr {
		u32 high;
		u32 low;
		};

		/* 4 Bytes */
		struct mcp_slot {
		u16 checksum;
		u16 length;
		};

		/* 64 Bytes */
		struct mcp_cmd {
		u32 cmd;
		u32 data0; /* will be low portion if data > 32 bits */
		/* 8 */
		u32 data1; /* will be high portion if data > 32 bits */
		u32 data2; /* currently unused.. */
		/* 16 */
		struct mcp_dma_addr response_addr;
		/* 24 */
		u8 pad[40];
		};

		/* 8 Bytes */
		struct mcp_cmd_response {
		u32 data;
		u32 result;
		};

		/*
		* flags used in mcp_kreq_ether_send_t:
		*
		* The SMALL flag is only needed in the first segment. It is raised
		* for packets that are total less or equal 512 bytes.
		*
		* The CKSUM flag must be set in all segments.
		*
		* The PADDED flags is set if the packet needs to be padded, and it
		* must be set for all segments.
		*
		* The MXGEFW_FLAGS_ALIGN_ODD must be set if the cumulative
		* length of all previous segments was odd.
		*/

		#define MXGEFW_FLAGS_SMALL 0x1
		#define MXGEFW_FLAGS_TSO_HDR 0x1
		#define MXGEFW_FLAGS_FIRST 0x2
		#define MXGEFW_FLAGS_ALIGN_ODD 0x4
		#define MXGEFW_FLAGS_CKSUM 0x8
		#define MXGEFW_FLAGS_TSO_LAST 0x8
		#define MXGEFW_FLAGS_NO_TSO 0x10
		#define MXGEFW_FLAGS_TSO_CHOP 0x10
		#define MXGEFW_FLAGS_TSO_PLD 0x20

		#define MXGEFW_SEND_SMALL_SIZE 1520
		#define MXGEFW_MAX_MTU 9400

		union mcp_pso_or_cumlen {
		u16 pseudo_hdr_offset;
		u16 cum_len;
		};

		#define MXGEFW_MAX_SEND_DESC 12
		#define MXGEFW_PAD 2

		/* 16 Bytes */
		struct mcp_kreq_ether_send {
		u32 addr_high;
		u32 addr_low;
		u16 pseudo_hdr_offset;
		u16 length;
		u8 pad;
		u8 rdma_count;
		u8 cksum_offset; /* where to start computing cksum */
		u8 flags; /* as defined above */
		};

		/* 8 Bytes */
		struct mcp_kreq_ether_recv {
		u32 addr_high;
		u32 addr_low;
		};

		/* Commands */

		#define MXGEFW_CMD_OFFSET 0xf80000

		enum myri10ge_mcp_cmd_type {
		MXGEFW_CMD_NONE = 0,
		/* Reset the mcp, it is left in a safe state, waiting
		* for the driver to set all its parameters */
		MXGEFW_CMD_RESET,

		/* get the version number of the current firmware..
		* (may be available in the eeprom strings..? */
		MXGEFW_GET_MCP_VERSION,

		/* Parameters which must be set by the driver before it can
		* issue MXGEFW_CMD_ETHERNET_UP. They persist until the next
		* MXGEFW_CMD_RESET is issued */

		MXGEFW_CMD_SET_INTRQ_DMA,
		MXGEFW_CMD_SET_BIG_BUFFER_SIZE, /* in bytes, power of 2 */
		MXGEFW_CMD_SET_SMALL_BUFFER_SIZE, /* in bytes */

		/* Parameters which refer to lanai SRAM addresses where the
		* driver must issue PIO writes for various things */

		MXGEFW_CMD_GET_SEND_OFFSET,
		MXGEFW_CMD_GET_SMALL_RX_OFFSET,
		MXGEFW_CMD_GET_BIG_RX_OFFSET,
		MXGEFW_CMD_GET_IRQ_ACK_OFFSET,
		MXGEFW_CMD_GET_IRQ_DEASSERT_OFFSET,

		/* Parameters which refer to rings stored on the MCP,
		* and whose size is controlled by the mcp */

		MXGEFW_CMD_GET_SEND_RING_SIZE, /* in bytes */
		MXGEFW_CMD_GET_RX_RING_SIZE, /* in bytes */

		/* Parameters which refer to rings stored in the host,
		* and whose size is controlled by the host. Note that
		* all must be physically contiguous and must contain
		* a power of 2 number of entries. */

		MXGEFW_CMD_SET_INTRQ_SIZE, /* in bytes */

		/* command to bring ethernet interface up. Above parameters
		* (plus mtu & mac address) must have been exchanged prior
		* to issuing this command */
		MXGEFW_CMD_ETHERNET_UP,

		/* command to bring ethernet interface down. No further sends
		* or receives may be processed until an MXGEFW_CMD_ETHERNET_UP
		* is issued, and all interrupt queues must be flushed prior
		* to ack'ing this command */

		MXGEFW_CMD_ETHERNET_DOWN,

		/* commands the driver may issue live, without resetting
		* the nic. Note that increasing the mtu "live" should
		* only be done if the driver has already supplied buffers
		* sufficiently large to handle the new mtu. Decreasing
		* the mtu live is safe */

		MXGEFW_CMD_SET_MTU,
		MXGEFW_CMD_GET_INTR_COAL_DELAY_OFFSET, /* in microseconds */
		MXGEFW_CMD_SET_STATS_INTERVAL, /* in microseconds */
		MXGEFW_CMD_SET_STATS_DMA,

		MXGEFW_ENABLE_PROMISC,
		MXGEFW_DISABLE_PROMISC,
		MXGEFW_SET_MAC_ADDRESS,

		MXGEFW_ENABLE_FLOW_CONTROL,
		MXGEFW_DISABLE_FLOW_CONTROL,

		/* do a DMA test
		* data0,data1 = DMA address
		* data2 = RDMA length (MSH), WDMA length (LSH)
		* command return data = repetitions (MSH), 0.5-ms ticks (LSH)
		*/
		MXGEFW_DMA_TEST
		};

		enum myri10ge_mcp_cmd_status {
		MXGEFW_CMD_OK = 0,
		MXGEFW_CMD_UNKNOWN,
		MXGEFW_CMD_ERROR_RANGE,
		MXGEFW_CMD_ERROR_BUSY,
		MXGEFW_CMD_ERROR_EMPTY,
		MXGEFW_CMD_ERROR_CLOSED,
		MXGEFW_CMD_ERROR_HASH_ERROR,
		MXGEFW_CMD_ERROR_BAD_PORT,
		MXGEFW_CMD_ERROR_RESOURCES
		};

		/* 40 Bytes */
		struct mcp_irq_data {
		u32 send_done_count;

		u32 link_up;
		u32 dropped_link_overflow;
		u32 dropped_link_error_or_filtered;
		u32 dropped_runt;
		u32 dropped_overrun;
		u32 dropped_no_small_buffer;
		u32 dropped_no_big_buffer;
		u32 rdma_tags_available;

		u8 tx_stopped;
		u8 link_down;
		u8 stats_updated;
		u8 valid;
		};

		#endif /* __MYRI10GE_MCP_H__ */

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