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36 files changed, 12887 insertions, 0 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index 36aadf6003b..2112034e164 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3522,6 +3522,13 @@ M: pfg@sgi.com L: linux-ia64@vger.kernel.org S: Supported +SFC NETWORK DRIVER +P: Steve Hodgson +P: Ben Hutchings +P: Robert Stonehouse +M: linux-net-drivers@solarflare.com +S: Supported + SGI VISUAL WORKSTATION 320 AND 540 P: Andrey Panin M: pazke@donpac.ru diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 45c3a208d93..50b36b408ca 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -2592,6 +2592,7 @@ config BNX2X To compile this driver as a module, choose M here: the module will be called bnx2x. This is recommended. +source "drivers/net/sfc/Kconfig" endif # NETDEV_10000 diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 4d71729e85e..371cb0785b2 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -252,3 +252,5 @@ obj-$(CONFIG_FS_ENET) += fs_enet/ obj-$(CONFIG_NETXEN_NIC) += netxen/ obj-$(CONFIG_NIU) += niu.o obj-$(CONFIG_VIRTIO_NET) += virtio_net.o +obj-$(CONFIG_SFC) += sfc/ + diff --git a/drivers/net/sfc/Kconfig b/drivers/net/sfc/Kconfig new file mode 100644 index 00000000000..dbad95c295b --- /dev/null +++ b/drivers/net/sfc/Kconfig @@ -0,0 +1,12 @@ +config SFC + tristate "Solarflare Solarstorm SFC4000 support" + depends on PCI && INET + select MII + select INET_LRO + select CRC32 + help + This driver supports 10-gigabit Ethernet cards based on + the Solarflare Communications Solarstorm SFC4000 controller. + + To compile this driver as a module, choose M here. The module + will be called sfc. diff --git a/drivers/net/sfc/Makefile b/drivers/net/sfc/Makefile new file mode 100644 index 00000000000..0f023447eaf --- /dev/null +++ b/drivers/net/sfc/Makefile @@ -0,0 +1,5 @@ +sfc-y += efx.o falcon.o tx.o rx.o falcon_xmac.o \ + i2c-direct.o ethtool.o xfp_phy.o mdio_10g.o \ + tenxpress.o boards.o sfe4001.o + +obj-$(CONFIG_SFC) += sfc.o diff --git a/drivers/net/sfc/bitfield.h b/drivers/net/sfc/bitfield.h new file mode 100644 index 00000000000..2806201644c --- /dev/null +++ b/drivers/net/sfc/bitfield.h @@ -0,0 +1,508 @@ +/**************************************************************************** + * Driver for Solarflare Solarstorm network controllers and boards + * Copyright 2005-2006 Fen Systems Ltd. + * Copyright 2006-2008 Solarflare Communications Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation, incorporated herein by reference. + */ + +#ifndef EFX_BITFIELD_H +#define EFX_BITFIELD_H + +/* + * Efx bitfield access + * + * Efx NICs make extensive use of bitfields up to 128 bits + * wide. Since there is no native 128-bit datatype on most systems, + * and since 64-bit datatypes are inefficient on 32-bit systems and + * vice versa, we wrap accesses in a way that uses the most efficient + * datatype. + * + * The NICs are PCI devices and therefore little-endian. Since most + * of the quantities that we deal with are DMAed to/from host memory, + * we define our datatypes (efx_oword_t, efx_qword_t and + * efx_dword_t) to be little-endian. + */ + +/* Lowest bit numbers and widths */ +#define EFX_DUMMY_FIELD_LBN 0 +#define EFX_DUMMY_FIELD_WIDTH 0 +#define EFX_DWORD_0_LBN 0 +#define EFX_DWORD_0_WIDTH 32 +#define EFX_DWORD_1_LBN 32 +#define EFX_DWORD_1_WIDTH 32 +#define EFX_DWORD_2_LBN 64 +#define EFX_DWORD_2_WIDTH 32 +#define EFX_DWORD_3_LBN 96 +#define EFX_DWORD_3_WIDTH 32 + +/* Specified attribute (e.g. LBN) of the specified field */ +#define EFX_VAL(field, attribute) field ## _ ## attribute +/* Low bit number of the specified field */ +#define EFX_LOW_BIT(field) EFX_VAL(field, LBN) +/* Bit width of the specified field */ +#define EFX_WIDTH(field) EFX_VAL(field, WIDTH) +/* High bit number of the specified field */ +#define EFX_HIGH_BIT(field) (EFX_LOW_BIT(field) + EFX_WIDTH(field) - 1) +/* Mask equal in width to the specified field. + * + * For example, a field with width 5 would have a mask of 0x1f. + * + * The maximum width mask that can be generated is 64 bits. + */ +#define EFX_MASK64(field) \ + (EFX_WIDTH(field) == 64 ? ~((u64) 0) : \ + (((((u64) 1) << EFX_WIDTH(field))) - 1)) + +/* Mask equal in width to the specified field. + * + * For example, a field with width 5 would have a mask of 0x1f. + * + * The maximum width mask that can be generated is 32 bits. Use + * EFX_MASK64 for higher width fields. + */ +#define EFX_MASK32(field) \ + (EFX_WIDTH(field) == 32 ? ~((u32) 0) : \ + (((((u32) 1) << EFX_WIDTH(field))) - 1)) + +/* A doubleword (i.e. 4 byte) datatype - little-endian in HW */ +typedef union efx_dword { + __le32 u32[1]; +} efx_dword_t; + +/* A quadword (i.e. 8 byte) datatype - little-endian in HW */ +typedef union efx_qword { + __le64 u64[1]; + __le32 u32[2]; + efx_dword_t dword[2]; +} efx_qword_t; + +/* An octword (eight-word, i.e. 16 byte) datatype - little-endian in HW */ +typedef union efx_oword { + __le64 u64[2]; + efx_qword_t qword[2]; + __le32 u32[4]; + efx_dword_t dword[4]; +} efx_oword_t; + +/* Format string and value expanders for printk */ +#define EFX_DWORD_FMT "%08x" +#define EFX_QWORD_FMT "%08x:%08x" +#define EFX_OWORD_FMT "%08x:%08x:%08x:%08x" +#define EFX_DWORD_VAL(dword) \ + ((unsigned int) le32_to_cpu((dword).u32[0])) +#define EFX_QWORD_VAL(qword) \ + ((unsigned int) le32_to_cpu((qword).u32[1])), \ + ((unsigned int) le32_to_cpu((qword).u32[0])) +#define EFX_OWORD_VAL(oword) \ + ((unsigned int) le32_to_cpu((oword).u32[3])), \ + ((unsigned int) le32_to_cpu((oword).u32[2])), \ + ((unsigned int) le32_to_cpu((oword).u32[1])), \ + ((unsigned int) le32_to_cpu((oword).u32[0])) + +/* + * Extract bit field portion [low,high) from the native-endian element + * which contains bits [min,max). + * + * For example, suppose "element" represents the high 32 bits of a + * 64-bit value, and we wish to extract the bits belonging to the bit + * field occupying bits 28-45 of this 64-bit value. + * + * Then EFX_EXTRACT ( element, 32, 63, 28, 45 ) would give + * + * ( element ) << 4 + * + * The result will contain the relevant bits filled in in the range + * [0,high-low), with garbage in bits [high-low+1,...). + */ +#define EFX_EXTRACT_NATIVE(native_element, min, max, low, high) \ + (((low > max) || (high < min)) ? 0 : \ + ((low > min) ? \ + ((native_element) >> (low - min)) : \ + ((native_element) << (min - low)))) + +/* + * Extract bit field portion [low,high) from the 64-bit little-endian + * element which contains bits [min,max) + */ +#define EFX_EXTRACT64(element, min, max, low, high) \ + EFX_EXTRACT_NATIVE(le64_to_cpu(element), min, max, low, high) + +/* + * Extract bit field portion [low,high) from the 32-bit little-endian + * element which contains bits [min,max) + */ +#define EFX_EXTRACT32(element, min, max, low, high) \ + EFX_EXTRACT_NATIVE(le32_to_cpu(element), min, max, low, high) + +#define EFX_EXTRACT_OWORD64(oword, low, high) \ + (EFX_EXTRACT64((oword).u64[0], 0, 63, low, high) | \ + EFX_EXTRACT64((oword).u64[1], 64, 127, low, high)) + +#define EFX_EXTRACT_QWORD64(qword, low, high) \ + EFX_EXTRACT64((qword).u64[0], 0, 63, low, high) + +#define EFX_EXTRACT_OWORD32(oword, low, high) \ + (EFX_EXTRACT32((oword).u32[0], 0, 31, low, high) | \ + EFX_EXTRACT32((oword).u32[1], 32, 63, low, high) | \ + EFX_EXTRACT32((oword).u32[2], 64, 95, low, high) | \ + EFX_EXTRACT32((oword).u32[3], 96, 127, low, high)) + +#define EFX_EXTRACT_QWORD32(qword, low, high) \ + (EFX_EXTRACT32((qword).u32[0], 0, 31, low, high) | \ + EFX_EXTRACT32((qword).u32[1], 32, 63, low, high)) + +#define EFX_EXTRACT_DWORD(dword, low, high) \ + EFX_EXTRACT32((dword).u32[0], 0, 31, low, high) + +#define EFX_OWORD_FIELD64(oword, field) \ + (EFX_EXTRACT_OWORD64(oword, EFX_LOW_BIT(field), EFX_HIGH_BIT(field)) \ + & EFX_MASK64(field)) + +#define EFX_QWORD_FIELD64(qword, field) \ + (EFX_EXTRACT_QWORD64(qword, EFX_LOW_BIT(field), EFX_HIGH_BIT(field)) \ + & EFX_MASK64(field)) + +#define EFX_OWORD_FIELD32(oword, field) \ + (EFX_EXTRACT_OWORD32(oword, EFX_LOW_BIT(field), EFX_HIGH_BIT(field)) \ + & EFX_MASK32(field)) + +#define EFX_QWORD_FIELD32(qword, field) \ + (EFX_EXTRACT_QWORD32(qword, EFX_LOW_BIT(field), EFX_HIGH_BIT(field)) \ + & EFX_MASK32(field)) + +#define EFX_DWORD_FIELD(dword, field) \ + (EFX_EXTRACT_DWORD(dword, EFX_LOW_BIT(field), EFX_HIGH_BIT(field)) \ + & EFX_MASK32(field)) + +#define EFX_OWORD_IS_ZERO64(oword) \ + (((oword).u64[0] | (oword).u64[1]) == (__force __le64) 0) + +#define EFX_QWORD_IS_ZERO64(qword) \ + (((qword).u64[0]) == (__force __le64) 0) + +#define EFX_OWORD_IS_ZERO32(oword) \ + (((oword).u32[0] | (oword).u32[1] | (oword).u32[2] | (oword).u32[3]) \ + == (__force __le32) 0) + +#define EFX_QWORD_IS_ZERO32(qword) \ + (((qword).u32[0] | (qword).u32[1]) == (__force __le32) 0) + +#define EFX_DWORD_IS_ZERO(dword) \ + (((dword).u32[0]) == (__force __le32) 0) + +#define EFX_OWORD_IS_ALL_ONES64(oword) \ + (((oword).u64[0] & (oword).u64[1]) == ~((__force __le64) 0)) + +#define EFX_QWORD_IS_ALL_ONES64(qword) \ + ((qword).u64[0] == ~((__force __le64) 0)) + +#define EFX_OWORD_IS_ALL_ONES32(oword) \ + (((oword).u32[0] & (oword).u32[1] & (oword).u32[2] & (oword).u32[3]) \ + == ~((__force __le32) 0)) + +#define EFX_QWORD_IS_ALL_ONES32(qword) \ + (((qword).u32[0] & (qword).u32[1]) == ~((__force __le32) 0)) + +#define EFX_DWORD_IS_ALL_ONES(dword) \ + ((dword).u32[0] == ~((__force __le32) 0)) + +#if BITS_PER_LONG == 64 +#define EFX_OWORD_FIELD EFX_OWORD_FIELD64 +#define EFX_QWORD_FIELD EFX_QWORD_FIELD64 +#define EFX_OWORD_IS_ZERO EFX_OWORD_IS_ZERO64 +#define EFX_QWORD_IS_ZERO EFX_QWORD_IS_ZERO64 +#define EFX_OWORD_IS_ALL_ONES EFX_OWORD_IS_ALL_ONES64 +#define EFX_QWORD_IS_ALL_ONES EFX_QWORD_IS_ALL_ONES64 +#else +#define EFX_OWORD_FIELD EFX_OWORD_FIELD32 +#define EFX_QWORD_FIELD EFX_QWORD_FIELD32 +#define EFX_OWORD_IS_ZERO EFX_OWORD_IS_ZERO32 +#define EFX_QWORD_IS_ZERO EFX_QWORD_IS_ZERO32 +#define EFX_OWORD_IS_ALL_ONES EFX_OWORD_IS_ALL_ONES32 +#define EFX_QWORD_IS_ALL_ONES EFX_QWORD_IS_ALL_ONES32 +#endif + +/* + * Construct bit field portion + * + * Creates the portion of the bit field [low,high) that lies within + * the range [min,max). + */ +#define EFX_INSERT_NATIVE64(min, max, low, high, value) \ + (((low > max) || (high < min)) ? 0 : \ + ((low > min) ? \ + (((u64) (value)) << (low - min)) : \ + (((u64) (value)) >> (min - low)))) + +#define EFX_INSERT_NATIVE32(min, max, low, high, value) \ + (((low > max) || (high < min)) ? 0 : \ + ((low > min) ? \ + (((u32) (value)) << (low - min)) : \ + (((u32) (value)) >> (min - low)))) + +#define EFX_INSERT_NATIVE(min, max, low, high, value) \ + ((((max - min) >= 32) || ((high - low) >= 32)) ? \ + EFX_INSERT_NATIVE64(min, max, low, high, value) : \ + EFX_INSERT_NATIVE32(min, max, low, high, value)) + +/* + * Construct bit field portion + * + * Creates the portion of the named bit field that lies within the + * range [min,max). + */ +#define EFX_INSERT_FIELD_NATIVE(min, max, field, value) \ + EFX_INSERT_NATIVE(min, max, EFX_LOW_BIT(field), \ + EFX_HIGH_BIT(field), value) + +/* + * Construct bit field + * + * Creates the portion of the named bit fields that lie within the + * range [min,max). + */ +#define EFX_INSERT_FIELDS_NATIVE(min, max, \ + field1, value1, \ + field2, value2, \ + field3, value3, \ + field4, value4, \ + field5, value5, \ + field6, value6, \ + field7, value7, \ + field8, value8, \ + field9, value9, \ + field10, value10) \ + (EFX_INSERT_FIELD_NATIVE((min), (max), field1, (value1)) | \ + EFX_INSERT_FIELD_NATIVE((min), (max), field2, (value2)) | \ + EFX_INSERT_FIELD_NATIVE((min), (max), field3, (value3)) | \ + EFX_INSERT_FIELD_NATIVE((min), (max), field4, (value4)) | \ + EFX_INSERT_FIELD_NATIVE((min), (max), field5, (value5)) | \ + EFX_INSERT_FIELD_NATIVE((min), (max), field6, (value6)) | \ + EFX_INSERT_FIELD_NATIVE((min), (max), field7, (value7)) | \ + EFX_INSERT_FIELD_NATIVE((min), (max), field8, (value8)) | \ + EFX_INSERT_FIELD_NATIVE((min), (max), field9, (value9)) | \ + EFX_INSERT_FIELD_NATIVE((min), (max), field10, (value10))) + +#define EFX_INSERT_FIELDS64(...) \ + cpu_to_le64(EFX_INSERT_FIELDS_NATIVE(__VA_ARGS__)) + +#define EFX_INSERT_FIELDS32(...) \ + cpu_to_le32(EFX_INSERT_FIELDS_NATIVE(__VA_ARGS__)) + +#define EFX_POPULATE_OWORD64(oword, ...) do { \ + (oword).u64[0] = EFX_INSERT_FIELDS64(0, 63, __VA_ARGS__); \ + (oword).u64[1] = EFX_INSERT_FIELDS64(64, 127, __VA_ARGS__); \ + } while (0) + +#define EFX_POPULATE_QWORD64(qword, ...) do { \ + (qword).u64[0] = EFX_INSERT_FIELDS64(0, 63, __VA_ARGS__); \ + } while (0) + +#define EFX_POPULATE_OWORD32(oword, ...) do { \ + (oword).u32[0] = EFX_INSERT_FIELDS32(0, 31, __VA_ARGS__); \ + (oword).u32[1] = EFX_INSERT_FIELDS32(32, 63, __VA_ARGS__); \ + (oword).u32[2] = EFX_INSERT_FIELDS32(64, 95, __VA_ARGS__); \ + (oword).u32[3] = EFX_INSERT_FIELDS32(96, 127, __VA_ARGS__); \ + } while (0) + +#define EFX_POPULATE_QWORD32(qword, ...) do { \ + (qword).u32[0] = EFX_INSERT_FIELDS32(0, 31, __VA_ARGS__); \ + (qword).u32[1] = EFX_INSERT_FIELDS32(32, 63, __VA_ARGS__); \ + } while (0) + +#define EFX_POPULATE_DWORD(dword, ...) do { \ + (dword).u32[0] = EFX_INSERT_FIELDS32(0, 31, __VA_ARGS__); \ + } while (0) + +#if BITS_PER_LONG == 64 +#define EFX_POPULATE_OWORD EFX_POPULATE_OWORD64 +#define EFX_POPULATE_QWORD EFX_POPULATE_QWORD64 +#else +#define EFX_POPULATE_OWORD EFX_POPULATE_OWORD32 +#define EFX_POPULATE_QWORD EFX_POPULATE_QWORD32 +#endif + +/* Populate an octword field with various numbers of arguments */ +#define EFX_POPULATE_OWORD_10 EFX_POPULATE_OWORD +#define EFX_POPULATE_OWORD_9(oword, ...) \ + EFX_POPULATE_OWORD_10(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_OWORD_8(oword, ...) \ + EFX_POPULATE_OWORD_9(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_OWORD_7(oword, ...) \ + EFX_POPULATE_OWORD_8(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_OWORD_6(oword, ...) \ + EFX_POPULATE_OWORD_7(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_OWORD_5(oword, ...) \ + EFX_POPULATE_OWORD_6(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_OWORD_4(oword, ...) \ + EFX_POPULATE_OWORD_5(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_OWORD_3(oword, ...) \ + EFX_POPULATE_OWORD_4(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_OWORD_2(oword, ...) \ + EFX_POPULATE_OWORD_3(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_OWORD_1(oword, ...) \ + EFX_POPULATE_OWORD_2(oword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_ZERO_OWORD(oword) \ + EFX_POPULATE_OWORD_1(oword, EFX_DUMMY_FIELD, 0) +#define EFX_SET_OWORD(oword) \ + EFX_POPULATE_OWORD_4(oword, \ + EFX_DWORD_0, 0xffffffff, \ + EFX_DWORD_1, 0xffffffff, \ + EFX_DWORD_2, 0xffffffff, \ + EFX_DWORD_3, 0xffffffff) + +/* Populate a quadword field with various numbers of arguments */ +#define EFX_POPULATE_QWORD_10 EFX_POPULATE_QWORD +#define EFX_POPULATE_QWORD_9(qword, ...) \ + EFX_POPULATE_QWORD_10(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_QWORD_8(qword, ...) \ + EFX_POPULATE_QWORD_9(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_QWORD_7(qword, ...) \ + EFX_POPULATE_QWORD_8(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_QWORD_6(qword, ...) \ + EFX_POPULATE_QWORD_7(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_QWORD_5(qword, ...) \ + EFX_POPULATE_QWORD_6(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_QWORD_4(qword, ...) \ + EFX_POPULATE_QWORD_5(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_QWORD_3(qword, ...) \ + EFX_POPULATE_QWORD_4(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_QWORD_2(qword, ...) \ + EFX_POPULATE_QWORD_3(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_QWORD_1(qword, ...) \ + EFX_POPULATE_QWORD_2(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_ZERO_QWORD(qword) \ + EFX_POPULATE_QWORD_1(qword, EFX_DUMMY_FIELD, 0) +#define EFX_SET_QWORD(qword) \ + EFX_POPULATE_QWORD_2(qword, \ + EFX_DWORD_0, 0xffffffff, \ + EFX_DWORD_1, 0xffffffff) + +/* Populate a dword field with various numbers of arguments */ +#define EFX_POPULATE_DWORD_10 EFX_POPULATE_DWORD +#define EFX_POPULATE_DWORD_9(dword, ...) \ + EFX_POPULATE_DWORD_10(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_DWORD_8(dword, ...) \ + EFX_POPULATE_DWORD_9(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_DWORD_7(dword, ...) \ + EFX_POPULATE_DWORD_8(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_DWORD_6(dword, ...) \ + EFX_POPULATE_DWORD_7(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_DWORD_5(dword, ...) \ + EFX_POPULATE_DWORD_6(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_DWORD_4(dword, ...) \ + EFX_POPULATE_DWORD_5(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_DWORD_3(dword, ...) \ + EFX_POPULATE_DWORD_4(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_DWORD_2(dword, ...) \ + EFX_POPULATE_DWORD_3(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_POPULATE_DWORD_1(dword, ...) \ + EFX_POPULATE_DWORD_2(dword, EFX_DUMMY_FIELD, 0, __VA_ARGS__) +#define EFX_ZERO_DWORD(dword) \ + EFX_POPULATE_DWORD_1(dword, EFX_DUMMY_FIELD, 0) +#define EFX_SET_DWORD(dword) \ + EFX_POPULATE_DWORD_1(dword, EFX_DWORD_0, 0xffffffff) + +/* + * Modify a named field within an already-populated structure. Used + * for read-modify-write operations. + * + */ + +#define EFX_INVERT_OWORD(oword) do { \ + (oword).u64[0] = ~((oword).u64[0]); \ + (oword).u64[1] = ~((oword).u64[1]); \ + } while (0) + +#define EFX_INSERT_FIELD64(...) \ + cpu_to_le64(EFX_INSERT_FIELD_NATIVE(__VA_ARGS__)) + +#define EFX_INSERT_FIELD32(...) \ + cpu_to_le32(EFX_INSERT_FIELD_NATIVE(__VA_ARGS__)) + +#define EFX_INPLACE_MASK64(min, max, field) \ + EFX_INSERT_FIELD64(min, max, field, EFX_MASK64(field)) + +#define EFX_INPLACE_MASK32(min, max, field) \ + EFX_INSERT_FIELD32(min, max, field, EFX_MASK32(field)) + +#define EFX_SET_OWORD_FIELD64(oword, field, value) do { \ + (oword).u64[0] = (((oword).u64[0] \ + & ~EFX_INPLACE_MASK64(0, 63, field)) \ + | EFX_INSERT_FIELD64(0, 63, field, value)); \ + (oword).u64[1] = (((oword).u64[1] \ + & ~EFX_INPLACE_MASK64(64, 127, field)) \ + | EFX_INSERT_FIELD64(64, 127, field, value)); \ + } while (0) + +#define EFX_SET_QWORD_FIELD64(qword, field, value) do { \ + (qword).u64[0] = (((qword).u64[0] \ + & ~EFX_INPLACE_MASK64(0, 63, field)) \ + | EFX_INSERT_FIELD64(0, 63, field, value)); \ + } while (0) + +#define EFX_SET_OWORD_FIELD32(oword, field, value) do { \ + (oword).u32[0] = (((oword).u32[0] \ + & ~EFX_INPLACE_MASK32(0, 31, field)) \ + | EFX_INSERT_FIELD32(0, 31, field, value)); \ + (oword).u32[1] = (((oword).u32[1] \ + & ~EFX_INPLACE_MASK32(32, 63, field)) \ + | EFX_INSERT_FIELD32(32, 63, field, value)); \ + (oword).u32[2] = (((oword).u32[2] \ + & ~EFX_INPLACE_MASK32(64, 95, field)) \ + | EFX_INSERT_FIELD32(64, 95, field, value)); \ + (oword).u32[3] = (((oword).u32[3] \ + & ~EFX_INPLACE_MASK32(96, 127, field)) \ + | EFX_INSERT_FIELD32(96, 127, field, value)); \ + } while (0) + +#define EFX_SET_QWORD_FIELD32(qword, field, value) do { \ + (qword).u32[0] = (((qword).u32[0] \ + & ~EFX_INPLACE_MASK32(0, 31, field)) \ + | EFX_INSERT_FIELD32(0, 31, field, value)); \ + (qword).u32[1] = (((qword).u32[1] \ + & ~EFX_INPLACE_MASK32(32, 63, field)) \ + | EFX_INSERT_FIELD32(32, 63, field, value)); \ + } while (0) + +#define EFX_SET_DWORD_FIELD(dword, field, value) do { \ + (dword).u32[0] = (((dword).u32[0] \ + & ~EFX_INPLACE_MASK32(0, 31, field)) \ + | EFX_INSERT_FIELD32(0, 31, field, value)); \ + } while (0) + +#if BITS_PER_LONG == 64 +#define EFX_SET_OWORD_FIELD EFX_SET_OWORD_FIELD64 +#define EFX_SET_QWORD_FIELD EFX_SET_QWORD_FIELD64 +#else +#define EFX_SET_OWORD_FIELD EFX_SET_OWORD_FIELD32 +#define EFX_SET_QWORD_FIELD EFX_SET_QWORD_FIELD32 +#endif + +#define EFX_SET_OWORD_FIELD_VER(efx, oword, field, value) do { \ + if (FALCON_REV(efx) >= FALCON_REV_B0) { \ + EFX_SET_OWORD_FIELD((oword), field##_B0, (value)); \ + } else { \ + EFX_SET_OWORD_FIELD((oword), field##_A1, (value)); \ + } \ +} while (0) + +#define EFX_QWORD_FIELD_VER(efx, qword, field) \ + (FALCON_REV(efx) >= FALCON_REV_B0 ? \ + EFX_QWORD_FIELD((qword), field##_B0) : \ + EFX_QWORD_FIELD((qword), field##_A1)) + +/* Used to avoid compiler warnings about shift range exceeding width + * of the data types when dma_addr_t is only 32 bits wide. + */ +#define DMA_ADDR_T_WIDTH (8 * sizeof(dma_addr_t)) +#define EFX_DMA_TYPE_WIDTH(width) \ + (((width) < DMA_ADDR_T_WIDTH) ? (width) : DMA_ADDR_T_WIDTH) +#define EFX_DMA_MAX_MASK ((DMA_ADDR_T_WIDTH == 64) ? \ + ~((u64) 0) : ~((u32) 0)) +#define EFX_DMA_MASK(mask) ((mask) & EFX_DMA_MAX_MASK) + +#endif /* EFX_BITFIELD_H */ diff --git a/drivers/net/sfc/boards.c b/drivers/net/sfc/boards.c new file mode 100644 index 00000000000..eecaa6d5858 --- /dev/null +++ b/drivers/net/sfc/boards.c @@ -0,0 +1,167 @@ +/**************************************************************************** + * Driver for Solarflare Solarstorm network controllers and boards + * Copyright 2007 Solarflare Communications Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation, incorporated herein by reference. + */ + +#include "net_driver.h" +#include "phy.h" +#include "boards.h" +#include "efx.h" + +/* Macros for unpacking the board revision */ +/* The revision info is in host byte order. */ +#define BOARD_TYPE(_rev) (_rev >> 8) +#define BOARD_MAJOR(_rev) ((_rev >> 4) & 0xf) +#define BOARD_MINOR(_rev) (_rev & 0xf) + +/* Blink support. If the PHY has no auto-blink mode so we hang it off a timer */ +#define BLINK_INTERVAL (HZ/2) + +static void blink_led_timer(unsigned long context) +{ + struct efx_nic *efx = (struct efx_nic *)context; + struct efx_blinker *bl = &efx->board_info.blinker; + efx->board_info.set_fault_led(efx, bl->state); + bl->state = !bl->state; + if (bl->resubmit) { + bl->timer.expires = jiffies + BLINK_INTERVAL; + add_timer(&bl->timer); + } +} + +static void board_blink(struct efx_nic *efx, int blink) +{ + struct efx_blinker *blinker = &efx->board_info.blinker; + + /* The rtnl mutex serialises all ethtool ioctls, so + * nothing special needs doing here. */ + if (blink) { + blinker->resubmit = 1; + blinker->state = 0; + setup_timer(&blinker->timer, blink_led_timer, + (unsigned long)efx); + blinker->timer.expires = jiffies + BLINK_INTERVAL; + add_timer(&blinker->timer); + } else { + blinker->resubmit = 0; + if (blinker->timer.function) + del_timer_sync(&blinker->timer); + efx->board_info.set_fault_led(efx, 0); + } +} + +/***************************************************************************** + * Support for the SFE4002 + * + */ +/****************************************************************************/ +/* LED allocations. Note that on rev A0 boards the schematic and the reality + * differ: red and green are swapped. Below is the fixed (A1) layout (there + * are only 3 A0 boards in existence, so no real reason to make this + * conditional). + */ +#define SFE4002_FAULT_LED (2) /* Red */ +#define SFE4002_RX_LED (0) /* Green */ +#define SFE4002_TX_LED (1) /* Amber */ + +static int sfe4002_init_leds(struct efx_nic *efx) +{ + /* Set the TX and RX LEDs to reflect status and activity, and the + * fault LED off */ + xfp_set_led(efx, SFE4002_TX_LED, + QUAKE_LED_TXLINK | QUAKE_LED_LINK_ACTSTAT); + xfp_set_led(efx, SFE4002_RX_LED, + QUAKE_LED_RXLINK | QUAKE_LED_LINK_ACTSTAT); + xfp_set_led(efx, SFE4002_FAULT_LED, QUAKE_LED_OFF); + efx->board_info.blinker.led_num = SFE4002_FAULT_LED; + return 0; +} + +static void sfe4002_fault_led(struct efx_nic *efx, int state) +{ + xfp_set_led(efx, SFE4002_FAULT_LED, state ? QUAKE_LED_ON : + QUAKE_LED_OFF); +} + +static int sfe4002_init(struct efx_nic *efx) +{ + efx->board_info.init_leds = sfe4002_init_leds; + efx->board_info.set_fault_led = sfe4002_fault_led; + efx->board_info.blink = board_blink; + return 0; +} + +/* This will get expanded as board-specific details get moved out of the + * PHY drivers. */ +struct efx_board_data { + const char *ref_model; + const char *gen_type; + int (*init) (struct efx_nic *nic); +}; + +static int dummy_init(struct efx_nic *nic) +{ + return 0; +} + +static struct efx_board_data board_data[] = { + [EFX_BOARD_INVALID] = + {NULL, NULL, dummy_init}, + [EFX_BOARD_SFE4001] = + {"SFE4001", "10GBASE-T adapter", sfe4001_poweron}, + [EFX_BOARD_SFE4002] = + {"SFE4002", "XFP adapter", sfe4002_init}, +}; + +int efx_set_board_info(struct efx_nic *efx, u16 revision_info) +{ + int rc = 0; + struct efx_board_data *data; + + if (BOARD_TYPE(revision_info) >= EFX_BOARD_MAX) { + EFX_ERR(efx, "squashing unknown board type %d\n", + BOARD_TYPE(revision_info)); + revision_info = 0; + } + + if (BOARD_TYPE(revision_info) == 0) { + efx->board_info.major = 0; + efx->board_info.minor = 0; + /* For early boards that don't have revision info. there is + * only 1 board for each PHY type, so we can work it out, with + * the exception of the PHY-less boards. */ + switch (efx->phy_type) { + case PHY_TYPE_10XPRESS: + efx->board_info.type = EFX_BOARD_SFE4001; + break; + case PHY_TYPE_XFP: + efx->board_info.type = EFX_BOARD_SFE4002; + break; + default: + efx->board_info.type = 0; + break; + } + } else { + efx->board_info.type = BOARD_TYPE(revision_info); + efx->board_info.major = BOARD_MAJOR(revision_info); + efx->board_info.minor = BOARD_MINOR(revision_info); + } + + data = &board_data[efx->board_info.type]; + + /* Report the board model number or generic type for recognisable + * boards. */ + if (efx->board_info.type != 0) + EFX_INFO(efx, "board is %s rev %c%d\n", + (efx->pci_dev->subsystem_vendor == EFX_VENDID_SFC) + ? data->ref_model : data->gen_type, + 'A' + efx->board_info.major, efx->board_info.minor); + + efx->board_info.init = data->init; + + return rc; +} diff --git a/drivers/net/sfc/boards.h b/drivers/net/sfc/boards.h new file mode 100644 index 00000000000..f56341d428e --- /dev/null +++ b/drivers/net/sfc/boards.h @@ -0,0 +1,26 @@ +/**************************************************************************** + * Driver for Solarflare Solarstorm network controllers and boards + * Copyright 2007 Solarflare Communications Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation, incorporated herein by reference. + */ + +#ifndef EFX_BOARDS_H +#define EFX_BOARDS_H + +/* Board IDs (must fit in 8 bits) */ +enum efx_board_type { + EFX_BOARD_INVALID = 0, + EFX_BOARD_SFE4001 = 1, /* SFE4001 (10GBASE-T) */ + EFX_BOARD_SFE4002 = 2, + /* Insert new types before here */ + EFX_BOARD_MAX +}; + +extern int efx_set_board_info(struct efx_nic *efx, u16 revision_info); +extern int sfe4001_poweron(struct efx_nic *efx); +extern void sfe4001_poweroff(struct efx_nic *efx); + +#endif diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c new file mode 100644 index 00000000000..59edcf793c1 --- /dev/null +++ b/ |