/* * Copyright(c) 2007 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. * * Maintained at www.Open-FCoE.org */ #ifndef _FC_FCOE_H_ #define _FC_FCOE_H_ /* * FCoE - Fibre Channel over Ethernet. * See T11 FC-BB-5 Rev 2.00 (09-056v5.pdf) */ /* * Default FC_FCOE_OUI / FC-MAP value. */ #define FC_FCOE_OUI 0x0efc00 /* upper 24 bits of FCOE MAC */ /* * Fabric Login (FLOGI) MAC for non-FIP use. Non-FIP use is deprecated. */ #define FC_FCOE_FLOGI_MAC { 0x0e, 0xfc, 0x00, 0xff, 0xff, 0xfe } #define FC_FCOE_VER 0 /* version */ /* * Ethernet Addresses based on FC S_ID and D_ID. * Generated by FC_FCOE_OUI | S_ID/D_ID */ #define FC_FCOE_ENCAPS_ID(n) (((u64) FC_FCOE_OUI << 24) | (n)) #define FC_FCOE_DECAPS_ID(n) ((n) >> 24) /* * FCoE frame header - 14 bytes * This follows the VLAN header, which includes the ethertype. */ struct fcoe_hdr { __u8 fcoe_ver; /* version field - upper 4 bits */ __u8 fcoe_resvd[12]; /* reserved - send zero and ignore */ __u8 fcoe_sof; /* start of frame per RFC 3643 */ }; #define FC_FCOE_DECAPS_VER(hp) ((hp)->fcoe_ver >> 4) #define FC_FCOE_ENCAPS_VER(hp, ver) ((hp)->fcoe_ver = (ver) << 4) /* * FCoE CRC & EOF - 8 bytes. */ struct fcoe_crc_eof { __le32 fcoe_crc32; /* CRC for FC packet */ __u8 fcoe_eof; /* EOF from RFC 3643 */ __u8 fcoe_resvd[3]; /* reserved - send zero and ignore */ } __attribute__((packed)); /* * Minimum FCoE + FC header length * 14 bytes FCoE header + 24 byte FC header = 38 bytes */ #define FCOE_HEADER_LEN 38 /* * Minimum FCoE frame size * 14 bytes FCoE header + 24 byte FC header + 8 byte FCoE trailer = 46 bytes */ #define FCOE_MIN_FRAME 46 /* * FCoE Link Error Status Block: T11 FC-BB-5 Rev2.0, Clause 7.10. */ struct fcoe_fc_els_lesb { __be32 lesb_link_fail; /* link failure count */ __be32 lesb_vlink_fail; /* virtual link failure count */ __be32 lesb_miss_fka; /* missing FIP keep-alive count */ __be32 lesb_symb_err; /* symbol error during carrier count */ __be32 lesb_err_block; /* errored block count */ __be32 lesb_fcs_error; /* frame check sequence error count */ }; /* * fc_fcoe_set_mac - Store OUI + DID into MAC address field. * @mac: mac address to be set * @did: fc dest id to use */ static inline void fc_fcoe_set_mac(u8 *mac, u8 *did) { mac[0] = (u8) (FC_FCOE_OUI >> 16); mac[1] = (u8) (FC_FCOE_OUI >> 8); mac[2] = (u8) FC_FCOE_OUI; mac[3] = did[0]; mac[4] = did[1]; mac[5] = did[2]; } #endif /* _FC_FCOE_H_ */ odecs/wm9713.c
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 09:37:34 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-31 21:47:58 +0100
commit0becc0ae5b42828785b589f686725ff5bc3b9b25 (patch)
treebe6d0e1f37c38ed0a7dd5da2d4b1e93f0fb43101 /sound/soc/codecs/wm9713.c
parent24c2503255d35c269b67162c397a1a1c1e02f6ce (diff)
x86/mce: Make timer handling more robust
Erik reported that on a preproduction hardware a CMCI storm triggers the BUG_ON in add_timer_on(). The reason is that the per CPU MCE timer is started by the CMCI logic before the MCE CPU hotplug callback starts the timer with add_timer_on(). So the timer is already queued which triggers the BUG. Using add_timer_on() is pretty pointless in this code because the timer is strictlty per CPU, initialized as pinned and all operations which arm the timer happen on the CPU to which the timer belongs. Simplify the whole machinery by using mod_timer() instead of add_timer_on() which avoids the problem because mod_timer() can handle already queued timers. Use __start_timer() everywhere so the earliest armed expiry time is preserved. Reported-by: Erik Veijola <erik.veijola@intel.com> Tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@alien8.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701310936080.3457@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'sound/soc/codecs/wm9713.c')