From 541c9a84cd85203244307d9ebb821102eed82789 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Wed, 9 Dec 2015 23:36:51 +0100 Subject: ssb: pick SoC invariants code from MIPS BCM47xx arch MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit There is code in ssb fetching "invariants" that is basically a set of board specific data. Every host requires its own implementation of reading function. In ssb we have support for PCI, PCMCIA & SDIO. For some (historical?) reason code reading "invariants" for SoC was placed in arch code and provided by a callback. This is not needed nowadays, so lets move that into ssb. This way we keep all "invariants" functions in a single module making code cleaner. Signed-off-by: Rafał Miłecki Signed-off-by: Kalle Valo --- arch/mips/bcm47xx/setup.c | 39 +-------------------------------------- 1 file changed, 1 insertion(+), 38 deletions(-) (limited to 'arch') diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c index 6d38948f0f1e..c807e32d6d81 100644 --- a/arch/mips/bcm47xx/setup.c +++ b/arch/mips/bcm47xx/setup.c @@ -101,50 +101,13 @@ static void bcm47xx_machine_halt(void) } #ifdef CONFIG_BCM47XX_SSB -static int bcm47xx_get_invariants(struct ssb_bus *bus, - struct ssb_init_invariants *iv) -{ - char buf[20]; - int len, err; - - /* Fill boardinfo structure */ - memset(&iv->boardinfo, 0 , sizeof(struct ssb_boardinfo)); - - len = bcm47xx_nvram_getenv("boardvendor", buf, sizeof(buf)); - if (len > 0) { - err = kstrtou16(strim(buf), 0, &iv->boardinfo.vendor); - if (err) - pr_warn("Couldn't parse nvram board vendor entry with value \"%s\"\n", - buf); - } - if (!iv->boardinfo.vendor) - iv->boardinfo.vendor = SSB_BOARDVENDOR_BCM; - - len = bcm47xx_nvram_getenv("boardtype", buf, sizeof(buf)); - if (len > 0) { - err = kstrtou16(strim(buf), 0, &iv->boardinfo.type); - if (err) - pr_warn("Couldn't parse nvram board type entry with value \"%s\"\n", - buf); - } - - memset(&iv->sprom, 0, sizeof(struct ssb_sprom)); - bcm47xx_fill_sprom(&iv->sprom, NULL, false); - - if (bcm47xx_nvram_getenv("cardbus", buf, sizeof(buf)) >= 0) - iv->has_cardbus_slot = !!simple_strtoul(buf, NULL, 10); - - return 0; -} - static void __init bcm47xx_register_ssb(void) { int err; char buf[100]; struct ssb_mipscore *mcore; - err = ssb_bus_ssbbus_register(&bcm47xx_bus.ssb, SSB_ENUM_BASE, - bcm47xx_get_invariants); + err = ssb_bus_host_soc_register(&bcm47xx_bus.ssb, SSB_ENUM_BASE); if (err) panic("Failed to initialize SSB bus (err %d)", err); -- cgit v1.2.3 From 8b614aebecdf2b1f72d51b1527f5a75d218b78e2 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Thu, 17 Dec 2015 23:51:54 +0100 Subject: bpf: move clearing of A/X into classic to eBPF migration prologue Back in the days where eBPF (or back then "internal BPF" ;->) was not exposed to user space, and only the classic BPF programs internally translated into eBPF programs, we missed the fact that for classic BPF A and X needed to be cleared. It was fixed back then via 83d5b7ef99c9 ("net: filter: initialize A and X registers"), and thus classic BPF specifics were added to the eBPF interpreter core to work around it. This added some confusion for JIT developers later on that take the eBPF interpreter code as an example for deriving their JIT. F.e. in f75298f5c3fe ("s390/bpf: clear correct BPF accumulator register"), at least X could leak stack memory. Furthermore, since this is only needed for classic BPF translations and not for eBPF (verifier takes care that read access to regs cannot be done uninitialized), more complexity is added to JITs as they need to determine whether they deal with migrations or native eBPF where they can just omit clearing A/X in their prologue and thus reduce image size a bit, see f.e. cde66c2d88da ("s390/bpf: Only clear A and X for converted BPF programs"). In other cases (x86, arm64), A and X is being cleared in the prologue also for eBPF case, which is unnecessary. Lets move this into the BPF migration in bpf_convert_filter() where it actually belongs as long as the number of eBPF JITs are still few. It can thus be done generically; allowing us to remove the quirk from __bpf_prog_run() and to slightly reduce JIT image size in case of eBPF, while reducing code duplication on this matter in current(/future) eBPF JITs. Signed-off-by: Daniel Borkmann Acked-by: Alexei Starovoitov Reviewed-by: Michael Holzheu Tested-by: Michael Holzheu Cc: Zi Shen Lim Cc: Yang Shi Acked-by: Yang Shi Acked-by: Zi Shen Lim Signed-off-by: David S. Miller --- arch/arm64/net/bpf_jit_comp.c | 6 ------ arch/s390/net/bpf_jit_comp.c | 13 ++----------- arch/x86/net/bpf_jit_comp.c | 14 +++++++++----- 3 files changed, 11 insertions(+), 22 deletions(-) (limited to 'arch') diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c index b162ad70effc..7658612d915c 100644 --- a/arch/arm64/net/bpf_jit_comp.c +++ b/arch/arm64/net/bpf_jit_comp.c @@ -152,8 +152,6 @@ static void build_prologue(struct jit_ctx *ctx) const u8 r8 = bpf2a64[BPF_REG_8]; const u8 r9 = bpf2a64[BPF_REG_9]; const u8 fp = bpf2a64[BPF_REG_FP]; - const u8 ra = bpf2a64[BPF_REG_A]; - const u8 rx = bpf2a64[BPF_REG_X]; const u8 tmp1 = bpf2a64[TMP_REG_1]; const u8 tmp2 = bpf2a64[TMP_REG_2]; @@ -200,10 +198,6 @@ static void build_prologue(struct jit_ctx *ctx) /* Set up function call stack */ emit(A64_SUB_I(1, A64_SP, A64_SP, STACK_SIZE), ctx); - - /* Clear registers A and X */ - emit_a64_mov_i64(ra, 0, ctx); - emit_a64_mov_i64(rx, 0, ctx); } static void build_epilogue(struct jit_ctx *ctx) diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c index 9a0c4c22e536..3c0bfc1f2694 100644 --- a/arch/s390/net/bpf_jit_comp.c +++ b/arch/s390/net/bpf_jit_comp.c @@ -408,7 +408,7 @@ static void emit_load_skb_data_hlen(struct bpf_jit *jit) * Save registers and create stack frame if necessary. * See stack frame layout desription in "bpf_jit.h"! */ -static void bpf_jit_prologue(struct bpf_jit *jit, bool is_classic) +static void bpf_jit_prologue(struct bpf_jit *jit) { if (jit->seen & SEEN_TAIL_CALL) { /* xc STK_OFF_TCCNT(4,%r15),STK_OFF_TCCNT(%r15) */ @@ -448,15 +448,6 @@ static void bpf_jit_prologue(struct bpf_jit *jit, bool is_classic) /* stg %b1,ST_OFF_SKBP(%r0,%r15) */ EMIT6_DISP_LH(0xe3000000, 0x0024, REG_W1, REG_0, REG_15, STK_OFF_SKBP); - /* Clear A (%b0) and X (%b7) registers for converted BPF programs */ - if (is_classic) { - if (REG_SEEN(BPF_REG_A)) - /* lghi %ba,0 */ - EMIT4_IMM(0xa7090000, BPF_REG_A, 0); - if (REG_SEEN(BPF_REG_X)) - /* lghi %bx,0 */ - EMIT4_IMM(0xa7090000, BPF_REG_X, 0); - } } /* @@ -1245,7 +1236,7 @@ static int bpf_jit_prog(struct bpf_jit *jit, struct bpf_prog *fp) jit->lit = jit->lit_start; jit->prg = 0; - bpf_jit_prologue(jit, bpf_prog_was_classic(fp)); + bpf_jit_prologue(jit); for (i = 0; i < fp->len; i += insn_count) { insn_count = bpf_jit_insn(jit, fp, i); if (insn_count < 0) diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c index 75991979f667..c080e812ce85 100644 --- a/arch/x86/net/bpf_jit_comp.c +++ b/arch/x86/net/bpf_jit_comp.c @@ -193,7 +193,7 @@ struct jit_context { 32 /* space for rbx, r13, r14, r15 */ + \ 8 /* space for skb_copy_bits() buffer */) -#define PROLOGUE_SIZE 51 +#define PROLOGUE_SIZE 48 /* emit x64 prologue code for BPF program and check it's size. * bpf_tail_call helper will skip it while jumping into another program @@ -229,11 +229,15 @@ static void emit_prologue(u8 **pprog) /* mov qword ptr [rbp-X],r15 */ EMIT3_off32(0x4C, 0x89, 0xBD, -STACKSIZE + 24); - /* clear A and X registers */ - EMIT2(0x31, 0xc0); /* xor eax, eax */ - EMIT3(0x4D, 0x31, 0xED); /* xor r13, r13 */ + /* Clear the tail call counter (tail_call_cnt): for eBPF tail calls + * we need to reset the counter to 0. It's done in two instructions, + * resetting rax register to 0 (xor on eax gets 0 extended), and + * moving it to the counter location. + */ - /* clear tail_cnt: mov qword ptr [rbp-X], rax */ + /* xor eax, eax */ + EMIT2(0x31, 0xc0); + /* mov qword ptr [rbp-X], rax */ EMIT3_off32(0x48, 0x89, 0x85, -STACKSIZE + 32); BUILD_BUG_ON(cnt != PROLOGUE_SIZE); -- cgit v1.2.3 From 606c88a86c77fa27cb4eac899ddced9092825bea Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Thu, 17 Dec 2015 23:51:56 +0100 Subject: bpf, x86: detect/optimize loading 0 immediates When sometimes structs or variables need to be initialized/'memset' to 0 in an eBPF C program, the x86 BPF JIT converts this to use immediates. We can however save a couple of bytes (f.e. even up to 7 bytes on a single emmission of BPF_LD | BPF_IMM | BPF_DW) in the image by detecting such case and use xor on the dst register instead. Signed-off-by: Daniel Borkmann Acked-by: Alexei Starovoitov Signed-off-by: David S. Miller --- arch/x86/net/bpf_jit_comp.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'arch') diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c index c080e812ce85..4286f3618bd0 100644 --- a/arch/x86/net/bpf_jit_comp.c +++ b/arch/x86/net/bpf_jit_comp.c @@ -459,6 +459,18 @@ static int do_jit(struct bpf_prog *bpf_prog, int *addrs, u8 *image, } case BPF_ALU | BPF_MOV | BPF_K: + /* optimization: if imm32 is zero, use 'xor ,' + * to save 3 bytes. + */ + if (imm32 == 0) { + if (is_ereg(dst_reg)) + EMIT1(add_2mod(0x40, dst_reg, dst_reg)); + b2 = 0x31; /* xor */ + b3 = 0xC0; + EMIT2(b2, add_2reg(b3, dst_reg, dst_reg)); + break; + } + /* mov %eax, imm32 */ if (is_ereg(dst_reg)) EMIT1(add_1mod(0x40, dst_reg)); @@ -473,6 +485,20 @@ static int do_jit(struct bpf_prog *bpf_prog, int *addrs, u8 *image, return -EINVAL; } + /* optimization: if imm64 is zero, use 'xor ,' + * to save 7 bytes. + */ + if (insn[0].imm == 0 && insn[1].imm == 0) { + b1 = add_2mod(0x48, dst_reg, dst_reg); + b2 = 0x31; /* xor */ + b3 = 0xC0; + EMIT3(b1, b2, add_2reg(b3, dst_reg, dst_reg)); + + insn++; + i++; + break; + } + /* movabsq %rax, imm64 */ EMIT2(add_1mod(0x48, dst_reg), add_1reg(0xB8, dst_reg)); EMIT(insn[0].imm, 4); -- cgit v1.2.3 From 032c5e82847a2214c3196a90f0aeba0ce252de58 Mon Sep 17 00:00:00 2001 From: Thomas Falcon Date: Mon, 21 Dec 2015 11:26:06 -0600 Subject: Driver for IBM System i/p VNIC protocol This is a new device driver for a high performance SR-IOV assisted virtual network for IBM System p and IBM System i systems. The SR-IOV VF will be attached to the VIOS partition and mapped to the Linux client via the hypervisor's VNIC protocol that this driver implements. This driver is able to perform basic tx and rx, new features and improvements will be added as they are being developed and tested. Signed-off-by: Thomas Falcon Signed-off-by: John Allen Signed-off-by: David S. Miller --- arch/powerpc/include/asm/hvcall.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'arch') diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h index 85bc8c0d257b..e3b54dd4f730 100644 --- a/arch/powerpc/include/asm/hvcall.h +++ b/arch/powerpc/include/asm/hvcall.h @@ -258,11 +258,16 @@ #define H_DEL_CONN 0x288 #define H_JOIN 0x298 #define H_VASI_STATE 0x2A4 +#define H_VIOCTL 0x2A8 #define H_ENABLE_CRQ 0x2B0 #define H_GET_EM_PARMS 0x2B8 #define H_SET_MPP 0x2D0 #define H_GET_MPP 0x2D4 +#define H_REG_SUB_CRQ 0x2DC #define H_HOME_NODE_ASSOCIATIVITY 0x2EC +#define H_FREE_SUB_CRQ 0x2E0 +#define H_SEND_SUB_CRQ 0x2E4 +#define H_SEND_SUB_CRQ_INDIRECT 0x2E8 #define H_BEST_ENERGY 0x2F4 #define H_XIRR_X 0x2FC #define H_RANDOM 0x300 @@ -271,6 +276,21 @@ #define H_SET_MODE 0x31C #define MAX_HCALL_OPCODE H_SET_MODE +/* H_VIOCTL functions */ +#define H_GET_VIOA_DUMP_SIZE 0x01 +#define H_GET_VIOA_DUMP 0x02 +#define H_GET_ILLAN_NUM_VLAN_IDS 0x03 +#define H_GET_ILLAN_VLAN_ID_LIST 0x04 +#define H_GET_ILLAN_SWITCH_ID 0x05 +#define H_DISABLE_MIGRATION 0x06 +#define H_ENABLE_MIGRATION 0x07 +#define H_GET_PARTNER_INFO 0x08 +#define H_GET_PARTNER_WWPN_LIST 0x09 +#define H_DISABLE_ALL_VIO_INTS 0x0A +#define H_DISABLE_VIO_INTERRUPT 0x0B +#define H_ENABLE_VIO_INTERRUPT 0x0C + + /* Platform specific hcalls, used by KVM */ #define H_RTAS 0xf000 -- cgit v1.2.3 From 538950a1b7527a0a52ccd9337e3fcd304f027f13 Mon Sep 17 00:00:00 2001 From: Craig Gallek Date: Mon, 4 Jan 2016 17:41:47 -0500 Subject: soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF Expose socket options for setting a classic or extended BPF program for use when selecting sockets in an SO_REUSEPORT group. These options can be used on the first socket to belong to a group before bind or on any socket in the group after bind. This change includes refactoring of the existing sk_filter code to allow reuse of the existing BPF filter validation checks. Signed-off-by: Craig Gallek Acked-by: Alexei Starovoitov Signed-off-by: David S. Miller --- arch/alpha/include/uapi/asm/socket.h | 3 +++ arch/avr32/include/uapi/asm/socket.h | 3 +++ arch/frv/include/uapi/asm/socket.h | 3 +++ arch/ia64/include/uapi/asm/socket.h | 3 +++ arch/m32r/include/uapi/asm/socket.h | 3 +++ arch/mips/include/uapi/asm/socket.h | 3 +++ arch/mn10300/include/uapi/asm/socket.h | 3 +++ arch/parisc/include/uapi/asm/socket.h | 3 +++ arch/powerpc/include/uapi/asm/socket.h | 3 +++ arch/s390/include/uapi/asm/socket.h | 3 +++ arch/sparc/include/uapi/asm/socket.h | 3 +++ arch/xtensa/include/uapi/asm/socket.h | 3 +++ 12 files changed, 36 insertions(+) (limited to 'arch') diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h index 9a20821b111c..c5fb9e6bc3a5 100644 --- a/arch/alpha/include/uapi/asm/socket.h +++ b/arch/alpha/include/uapi/asm/socket.h @@ -92,4 +92,7 @@ #define SO_ATTACH_BPF 50 #define SO_DETACH_BPF SO_DETACH_FILTER +#define SO_ATTACH_REUSEPORT_CBPF 51 +#define SO_ATTACH_REUSEPORT_EBPF 52 + #endif /* _UAPI_ASM_SOCKET_H */ diff --git a/arch/avr32/include/uapi/asm/socket.h b/arch/avr32/include/uapi/asm/socket.h index 2b65ed6b277c..9de0796240a0 100644 --- a/arch/avr32/include/uapi/asm/socket.h +++ b/arch/avr32/include/uapi/asm/socket.h @@ -85,4 +85,7 @@ #define SO_ATTACH_BPF 50 #define SO_DETACH_BPF SO_DETACH_FILTER +#define SO_ATTACH_REUSEPORT_CBPF 51 +#define SO_ATTACH_REUSEPORT_EBPF 52 + #endif /* _UAPI__ASM_AVR32_SOCKET_H */ diff --git a/arch/frv/include/uapi/asm/socket.h b/arch/frv/include/uapi/asm/socket.h index 4823ad125578..f02e4849ae83 100644 --- a/arch/frv/include/uapi/asm/socket.h +++ b/arch/frv/include/uapi/asm/socket.h @@ -85,5 +85,8 @@ #define SO_ATTACH_BPF 50 #define SO_DETACH_BPF SO_DETACH_FILTER +#define SO_ATTACH_REUSEPORT_CBPF 51 +#define SO_ATTACH_REUSEPORT_EBPF 52 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/ia64/include/uapi/asm/socket.h b/arch/ia64/include/uapi/asm/socket.h index 59be3d87f86d..bce29166de1b 100644 --- a/arch/ia64/include/uapi/asm/socket.h +++ b/arch/ia64/include/uapi/asm/socket.h @@ -94,4 +94,7 @@ #define SO_ATTACH_BPF 50 #define SO_DETACH_BPF SO_DETACH_FILTER +#define SO_ATTACH_REUSEPORT_CBPF 51 +#define SO_ATTACH_REUSEPORT_EBPF 52 + #endif /* _ASM_IA64_SOCKET_H */ diff --git a/arch/m32r/include/uapi/asm/socket.h b/arch/m32r/include/uapi/asm/socket.h index 7bc4cb273856..14aa4a6bccf1 100644 --- a/arch/m32r/include/uapi/asm/socket.h +++ b/arch/m32r/include/uapi/asm/socket.h @@ -85,4 +85,7 @@ #define SO_ATTACH_BPF 50 #define SO_DETACH_BPF SO_DETACH_FILTER +#define SO_ATTACH_REUSEPORT_CBPF 51 +#define SO_ATTACH_REUSEPORT_EBPF 52 + #endif /* _ASM_M32R_SOCKET_H */ diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h index dec3c850f36b..5910fe294e93 100644 --- a/arch/mips/include/uapi/asm/socket.h +++ b/arch/mips/include/uapi/asm/socket.h @@ -103,4 +103,7 @@ #define SO_ATTACH_BPF 50 #define SO_DETACH_BPF SO_DETACH_FILTER +#define SO_ATTACH_REUSEPORT_CBPF 51 +#define SO_ATTACH_REUSEPORT_EBPF 52 + #endif /* _UAPI_ASM_SOCKET_H */ diff --git a/arch/mn10300/include/uapi/asm/socket.h b/arch/mn10300/include/uapi/asm/socket.h index cab7d6d50051..58b1aa01ab9f 100644 --- a/arch/mn10300/include/uapi/asm/socket.h +++ b/arch/mn10300/include/uapi/asm/socket.h @@ -85,4 +85,7 @@ #define SO_ATTACH_BPF 50 #define SO_DETACH_BPF SO_DETACH_FILTER +#define SO_ATTACH_REUSEPORT_CBPF 51 +#define SO_ATTACH_REUSEPORT_EBPF 52 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h index a5cd40cd8ee1..f9cf1223422c 100644 --- a/arch/parisc/include/uapi/asm/socket.h +++ b/arch/parisc/include/uapi/asm/socket.h @@ -84,4 +84,7 @@ #define SO_ATTACH_BPF 0x402B #define SO_DETACH_BPF SO_DETACH_FILTER +#define SO_ATTACH_REUSEPORT_CBPF 0x402C +#define SO_ATTACH_REUSEPORT_EBPF 0x402D + #endif /* _UAPI_ASM_SOCKET_H */ diff --git a/arch/powerpc/include/uapi/asm/socket.h b/arch/powerpc/include/uapi/asm/socket.h index c046666038f8..dd54f28ecdec 100644 --- a/arch/powerpc/include/uapi/asm/socket.h +++ b/arch/powerpc/include/uapi/asm/socket.h @@ -92,4 +92,7 @@ #define SO_ATTACH_BPF 50 #define SO_DETACH_BPF SO_DETACH_FILTER +#define SO_ATTACH_REUSEPORT_CBPF 51 +#define SO_ATTACH_REUSEPORT_EBPF 52 + #endif /* _ASM_POWERPC_SOCKET_H */ diff --git a/arch/s390/include/uapi/asm/socket.h b/arch/s390/include/uapi/asm/socket.h index 296942d56e6a..d02e89d14fef 100644 --- a/arch/s390/include/uapi/asm/socket.h +++ b/arch/s390/include/uapi/asm/socket.h @@ -91,4 +91,7 @@ #define SO_ATTACH_BPF 50 #define SO_DETACH_BPF SO_DETACH_FILTER +#define SO_ATTACH_REUSEPORT_CBPF 51 +#define SO_ATTACH_REUSEPORT_EBPF 52 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h index e6a16c40be5f..d270ee91968e 100644 --- a/arch/sparc/include/uapi/asm/socket.h +++ b/arch/sparc/include/uapi/asm/socket.h @@ -81,6 +81,9 @@ #define SO_ATTACH_BPF 0x0034 #define SO_DETACH_BPF SO_DETACH_FILTER +#define SO_ATTACH_REUSEPORT_CBPF 0x0035 +#define SO_ATTACH_REUSEPORT_EBPF 0x0036 + /* Security levels - as per NRL IPv6 - don't actually do anything */ #define SO_SECURITY_AUTHENTICATION 0x5001 #define SO_SECURITY_ENCRYPTION_TRANSPORT 0x5002 diff --git a/arch/xtensa/include/uapi/asm/socket.h b/arch/xtensa/include/uapi/asm/socket.h index 4120af086160..fd3b96d1153f 100644 --- a/arch/xtensa/include/uapi/asm/socket.h +++ b/arch/xtensa/include/uapi/asm/socket.h @@ -96,4 +96,7 @@ #define SO_ATTACH_BPF 50 #define SO_DETACH_BPF SO_DETACH_FILTER +#define SO_ATTACH_REUSEPORT_CBPF 51 +#define SO_ATTACH_REUSEPORT_EBPF 52 + #endif /* _XTENSA_SOCKET_H */ -- cgit v1.2.3 From c7f5d105495a38ed09e70d825f75d9d7d5407264 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 5 Nov 2015 11:34:57 -0500 Subject: net: Add eth_platform_get_mac_address() helper. A repeating pattern in drivers has become to use OF node information and, if not found, platform specific host information to extract the ethernet address for a given device. Currently this is done with a call to of_get_mac_address() and then some ifdef'd stuff for SPARC. Consolidate this into a portable routine, and provide the arch_get_platform_mac_address() weak function hook for all architectures to implement if they want. Signed-off-by: David S. Miller --- arch/sparc/kernel/idprom.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch') diff --git a/arch/sparc/kernel/idprom.c b/arch/sparc/kernel/idprom.c index 6bd75012109d..f95dd11b75ea 100644 --- a/arch/sparc/kernel/idprom.c +++ b/arch/sparc/kernel/idprom.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include @@ -60,6 +61,12 @@ static void __init display_system_type(unsigned char machtype) { } #endif + +unsigned char *arch_get_platform_mac_address(void) +{ + return idprom->id_ethaddr; +} + /* Calculate the IDPROM checksum (xor of the data bytes). */ static unsigned char __init calc_idprom_cksum(struct idprom *idprom) { -- cgit v1.2.3 From e7f4dc3536a40097f95103ddf98dd55b3a980f5b Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Wed, 6 Jan 2016 20:11:15 +0100 Subject: mdio: Move allocation of interrupts into core Have mdio_alloc() create the array of interrupt numbers, and initialize it to POLLING. This is what most MDIO drivers want, so allowing code to be removed from the drivers. Signed-off-by: Andrew Lunn Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- arch/powerpc/platforms/82xx/ep8248e.c | 10 +--------- arch/powerpc/platforms/pasemi/gpio_mdio.c | 3 --- 2 files changed, 1 insertion(+), 12 deletions(-) (limited to 'arch') diff --git a/arch/powerpc/platforms/82xx/ep8248e.c b/arch/powerpc/platforms/82xx/ep8248e.c index a0cb8bd41958..6781bda117be 100644 --- a/arch/powerpc/platforms/82xx/ep8248e.c +++ b/arch/powerpc/platforms/82xx/ep8248e.c @@ -131,23 +131,15 @@ static int ep8248e_mdio_probe(struct platform_device *ofdev) if (!bus) return -ENOMEM; - bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL); - if (bus->irq == NULL) { - ret = -ENOMEM; - goto err_free_bus; - } - bus->name = "ep8248e-mdio-bitbang"; bus->parent = &ofdev->dev; snprintf(bus->id, MII_BUS_ID_SIZE, "%x", res.start); ret = of_mdiobus_register(bus, ofdev->dev.of_node); if (ret) - goto err_free_irq; + goto err_free_bus; return 0; -err_free_irq: - kfree(bus->irq); err_free_bus: free_mdio_bitbang(bus); return ret; diff --git a/arch/powerpc/platforms/pasemi/gpio_mdio.c b/arch/powerpc/platforms/pasemi/gpio_mdio.c index ae3f47b25b18..ddf635000c6b 100644 --- a/arch/powerpc/platforms/pasemi/gpio_mdio.c +++ b/arch/powerpc/platforms/pasemi/gpio_mdio.c @@ -41,7 +41,6 @@ static void __iomem *gpio_regs; struct gpio_priv { int mdc_pin; int mdio_pin; - int mdio_irqs[PHY_MAX_ADDR]; }; #define MDC_PIN(bus) (((struct gpio_priv *)bus->priv)->mdc_pin) @@ -245,8 +244,6 @@ static int gpio_mdio_probe(struct platform_device *ofdev) snprintf(new_bus->id, MII_BUS_ID_SIZE, "%x", *prop); new_bus->priv = priv; - new_bus->irq = priv->mdio_irqs; - prop = of_get_property(np, "mdc-pin", NULL); priv->mdc_pin = *prop; -- cgit v1.2.3