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authorBoaz Harrosh <bharrosh@panasas.com>2014-05-22 07:48:15 -0400
committerBoaz Harrosh <bharrosh@panasas.com>2014-05-22 07:48:15 -0400
commitce5d36aac26cc395fe3bc45525cdbad3644f01e5 (patch)
tree04aa541850b8282baf000657307c6504d16c52ab /scripts/gdb
parent455682ce547817d75e38028283dc8db00754005d (diff)
ore: Support for raid 6
This simple patch adds support for raid6 to the ORE. Most operations and calculations where already for the general case. Only things left: * call async_gen_syndrome() in the case of raid6 (NOTE that the raid6 math is the one supported by the Linux Kernel see: crypto/async_tx/async_pq.c) * call _ore_add_parity_unit() twice with only last call generating the redundancy pages. * Fix couple BUGS in old code a. In reads when parity==2 it can happen that per_dev->length=0 but per_dev->offset was set and adjusted by _ore_add_sg_seg(). Don't let it be overwritten. b. The all 'cur_comp > starting_dev' thing to determine if: "per_dev->offset is in the current stripe number or the next one." Was a complete raid5/4 accident. When parity==2 this is not at all true usually. All we need to do is increment si->ob_offset once we pass by the first parity device. (This also greatly simplifies the code, amen) c. Calculation of si->dev rotation can overflow when parity==2. * Then last enable raid6 in ore_verify_layout() I want to deeply thank Daniel Gryniewicz who found first all the bugs in the old raid code, and inspired these patches: Inspired-by Daniel Gryniewicz <dang@linuxbox.com> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Diffstat (limited to 'scripts/gdb')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-22 16:05:53 -0400
ms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_IN6_H #define _LINUX_IN6_H #include <linux/types.h> /* * IPv6 address structure */ struct in6_addr { union { __u8 u6_addr8[16]; __be16 u6_addr16[8]; __be32 u6_addr32[4]; } in6_u; #define s6_addr in6_u.u6_addr8 #define s6_addr16 in6_u.u6_addr16 #define s6_addr32 in6_u.u6_addr32 }; /* IPv6 Wildcard Address (::) and Loopback Address (::1) defined in RFC2553 * NOTE: Be aware the IN6ADDR_* constants and in6addr_* externals are defined * in network byte order, not in host byte order as are the IPv4 equivalents */ extern const struct in6_addr in6addr_any; #define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } } extern const struct in6_addr in6addr_loopback; #define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } } struct sockaddr_in6 { unsigned short int sin6_family; /* AF_INET6 */ __be16 sin6_port; /* Transport layer port # */ __be32 sin6_flowinfo; /* IPv6 flow information */ struct in6_addr sin6_addr; /* IPv6 address */ __u32 sin6_scope_id; /* scope id (new in RFC2553) */ }; struct ipv6_mreq { /* IPv6 multicast address of group */ struct in6_addr ipv6mr_multiaddr; /* local IPv6 address of interface */ int ipv6mr_ifindex; }; #define ipv6mr_acaddr ipv6mr_multiaddr struct in6_flowlabel_req { struct in6_addr flr_dst; __be32 flr_label; __u8 flr_action; __u8 flr_share; __u16 flr_flags; __u16 flr_expires; __u16 flr_linger; __u32 __flr_pad; /* Options in format of IPV6_PKTOPTIONS */ }; #define IPV6_FL_A_GET 0 #define IPV6_FL_A_PUT 1 #define IPV6_FL_A_RENEW 2 #define IPV6_FL_F_CREATE 1 #define IPV6_FL_F_EXCL 2 #define IPV6_FL_S_NONE 0 #define IPV6_FL_S_EXCL 1 #define IPV6_FL_S_PROCESS 2 #define IPV6_FL_S_USER 3 #define IPV6_FL_S_ANY 255 /* * Bitmask constant declarations to help applications select out the * flow label and priority fields. * * Note that this are in host byte order while the flowinfo field of * sockaddr_in6 is in network byte order. */ #define IPV6_FLOWINFO_FLOWLABEL 0x000fffff #define IPV6_FLOWINFO_PRIORITY 0x0ff00000 /* These defintions are obsolete */ #define IPV6_PRIORITY_UNCHARACTERIZED 0x0000 #define IPV6_PRIORITY_FILLER 0x0100 #define IPV6_PRIORITY_UNATTENDED 0x0200 #define IPV6_PRIORITY_RESERVED1 0x0300 #define IPV6_PRIORITY_BULK 0x0400 #define IPV6_PRIORITY_RESERVED2 0x0500 #define IPV6_PRIORITY_INTERACTIVE 0x0600 #define IPV6_PRIORITY_CONTROL 0x0700 #define IPV6_PRIORITY_8 0x0800 #define IPV6_PRIORITY_9 0x0900 #define IPV6_PRIORITY_10 0x0a00 #define IPV6_PRIORITY_11 0x0b00 #define IPV6_PRIORITY_12 0x0c00 #define IPV6_PRIORITY_13 0x0d00 #define IPV6_PRIORITY_14 0x0e00 #define IPV6_PRIORITY_15 0x0f00 /* * IPV6 extension headers */ #define IPPROTO_HOPOPTS 0 /* IPv6 hop-by-hop options */ #define IPPROTO_ROUTING 43 /* IPv6 routing header */ #define IPPROTO_FRAGMENT 44 /* IPv6 fragmentation header */ #define IPPROTO_ICMPV6 58 /* ICMPv6 */ #define IPPROTO_NONE 59 /* IPv6 no next header */ #define IPPROTO_DSTOPTS 60 /* IPv6 destination options */ #define IPPROTO_MH 135 /* IPv6 mobility header */ /* * IPv6 TLV options. */ #define IPV6_TLV_PAD0 0 #define IPV6_TLV_PADN 1 #define IPV6_TLV_ROUTERALERT 5 #define IPV6_TLV_JUMBO 194 #define IPV6_TLV_HAO 201 /* home address option */ /* * IPV6 socket options */ #define IPV6_ADDRFORM 1 #define IPV6_2292PKTINFO 2 #define IPV6_2292HOPOPTS 3 #define IPV6_2292DSTOPTS 4 #define IPV6_2292RTHDR 5 #define IPV6_2292PKTOPTIONS 6 #define IPV6_CHECKSUM 7 #define IPV6_2292HOPLIMIT 8 #define IPV6_NEXTHOP 9 #define IPV6_AUTHHDR 10 /* obsolete */ #define IPV6_FLOWINFO 11 #define IPV6_UNICAST_HOPS 16 #define IPV6_MULTICAST_IF 17 #define IPV6_MULTICAST_HOPS 18 #define IPV6_MULTICAST_LOOP 19 #define IPV6_ADD_MEMBERSHIP 20 #define IPV6_DROP_MEMBERSHIP 21 #define IPV6_ROUTER_ALERT 22 #define IPV6_MTU_DISCOVER 23 #define IPV6_MTU 24 #define IPV6_RECVERR 25 #define IPV6_V6ONLY 26 #define IPV6_JOIN_ANYCAST 27 #define IPV6_LEAVE_ANYCAST 28 /* IPV6_MTU_DISCOVER values */ #define IPV6_PMTUDISC_DONT 0 #define IPV6_PMTUDISC_WANT 1 #define IPV6_PMTUDISC_DO 2 #define IPV6_PMTUDISC_PROBE 3 /* Flowlabel */ #define IPV6_FLOWLABEL_MGR 32 #define IPV6_FLOWINFO_SEND 33 #define IPV6_IPSEC_POLICY 34 #define IPV6_XFRM_POLICY 35 /* * Multicast: * Following socket options are shared between IPv4 and IPv6. * * MCAST_JOIN_GROUP 42 * MCAST_BLOCK_SOURCE 43 * MCAST_UNBLOCK_SOURCE 44 * MCAST_LEAVE_GROUP 45 * MCAST_JOIN_SOURCE_GROUP 46 * MCAST_LEAVE_SOURCE_GROUP 47 * MCAST_MSFILTER 48 */ /* * Advanced API (RFC3542) (1) * * Note: IPV6_RECVRTHDRDSTOPTS does not exist. see net/ipv6/datagram.c. */ #define IPV6_RECVPKTINFO 49 #define IPV6_PKTINFO 50 #define IPV6_RECVHOPLIMIT 51 #define IPV6_HOPLIMIT 52 #define IPV6_RECVHOPOPTS 53 #define IPV6_HOPOPTS 54 #define IPV6_RTHDRDSTOPTS 55 #define IPV6_RECVRTHDR 56 #define IPV6_RTHDR 57 #define IPV6_RECVDSTOPTS 58 #define IPV6_DSTOPTS 59 #if 0 /* not yet */ #define IPV6_RECVPATHMTU 60 #define IPV6_PATHMTU 61 #define IPV6_DONTFRAG 62 #define IPV6_USE_MIN_MTU 63 #endif /* * Netfilter (1) * * Following socket options are used in ip6_tables; * see include/linux/netfilter_ipv6/ip6_tables.h. * * IP6T_SO_SET_REPLACE / IP6T_SO_GET_INFO 64 * IP6T_SO_SET_ADD_COUNTERS / IP6T_SO_GET_ENTRIES 65 */ /* * Advanced API (RFC3542) (2) */ #define IPV6_RECVTCLASS 66 #define IPV6_TCLASS 67 /* * Netfilter (2) * * Following socket options are used in ip6_tables; * see include/linux/netfilter_ipv6/ip6_tables.h. * * IP6T_SO_GET_REVISION_MATCH 68 * IP6T_SO_GET_REVISION_TARGET 69 */ #endif
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-22 16:05:53 -0400