diff options
Diffstat (limited to '0011-RH-add-hp_tur-checker.patch')
-rw-r--r-- | 0011-RH-add-hp_tur-checker.patch | 274 |
1 files changed, 274 insertions, 0 deletions
diff --git a/0011-RH-add-hp_tur-checker.patch b/0011-RH-add-hp_tur-checker.patch new file mode 100644 index 0000000..dadf392 --- /dev/null +++ b/0011-RH-add-hp_tur-checker.patch @@ -0,0 +1,274 @@ +--- + libmultipath/checkers.h | 3 + + libmultipath/checkers/Makefile | 4 + + libmultipath/checkers/tur.c | 123 +++++++++++++++++++++++++++++++++++++++-- + multipath.conf.annotated | 5 + + 4 files changed, 128 insertions(+), 7 deletions(-) + +Index: multipath-tools-111219/libmultipath/checkers.h +=================================================================== +--- multipath-tools-111219.orig/libmultipath/checkers.h ++++ multipath-tools-111219/libmultipath/checkers.h +@@ -60,6 +60,7 @@ enum path_check_state { + + #define DIRECTIO "directio" + #define TUR "tur" ++#define HP_TUR "hp_tur" + #define HP_SW "hp_sw" + #define RDAC "rdac" + #define EMC_CLARIION "emc_clariion" +@@ -77,6 +78,7 @@ enum path_check_state { + #define CHECKER_MSG_LEN 256 + #define CHECKER_DEV_LEN 256 + #define LIB_CHECKER_NAMELEN 256 ++#define WWID_SIZE 128 + + struct checker { + struct list_head node; +@@ -88,6 +90,7 @@ struct checker { + int disable; + char name[CHECKER_NAME_LEN]; + char message[CHECKER_MSG_LEN]; /* comm with callers */ ++ char wwid[WWID_SIZE]; /* LUN wwid */ + void * context; /* store for persistent data */ + void ** mpcontext; /* store for persistent data shared + multipath-wide. Use MALLOC if +Index: multipath-tools-111219/libmultipath/checkers/Makefile +=================================================================== +--- multipath-tools-111219.orig/libmultipath/checkers/Makefile ++++ multipath-tools-111219/libmultipath/checkers/Makefile +@@ -8,6 +8,7 @@ LIBS= \ + libcheckcciss_tur.so \ + libcheckreadsector0.so \ + libchecktur.so \ ++ libcheckhp_tur.so \ + libcheckdirectio.so \ + libcheckemc_clariion.so \ + libcheckhp_sw.so \ +@@ -23,6 +24,9 @@ libcheckdirectio.so: libsg.o directio.o + libcheck%.so: libsg.o %.o + $(CC) $(LDFLAGS) $(SHARED_FLAGS) -o $@ $^ + ++hp_tur.o: tur.c ++ $(CC) $(CFLAGS) -DCHECK_WWID -c -o $@ $< ++ + install: + $(INSTALL_PROGRAM) -m 755 $(LIBS) $(DESTDIR)$(libdir) + +Index: multipath-tools-111219/libmultipath/checkers/tur.c +=================================================================== +--- multipath-tools-111219.orig/libmultipath/checkers/tur.c ++++ multipath-tools-111219/libmultipath/checkers/tur.c +@@ -24,12 +24,101 @@ + #define TUR_CMD_LEN 6 + #define HEAVY_CHECK_COUNT 10 + ++#ifdef CHECK_WWID ++#define MSG_TUR_UP "HP tur checker reports path is up" ++#define MSG_TUR_DOWN "HP tur checker reports path is down" ++#define MSG_TUR_GHOST "HP tur checker reports path is in standby state" ++#define MSG_TUR_RUNNING "HP tur checker still running" ++#define MSG_TUR_TIMEOUT "HP tur checker timed out" ++#define MSG_TUR_FAILED "HP tur checker failed to initialize" ++#define EVPD 0x01 ++#define PAGE_83 0x83 ++#define INQUIRY_CMD 0x12 ++#define INQUIRY_CMDLEN 6 ++#define SCSI_INQ_BUFF_LEN 96 ++#else + #define MSG_TUR_UP "tur checker reports path is up" + #define MSG_TUR_DOWN "tur checker reports path is down" + #define MSG_TUR_GHOST "tur checker reports path is in standby state" + #define MSG_TUR_RUNNING "tur checker still running" + #define MSG_TUR_TIMEOUT "tur checker timed out" + #define MSG_TUR_FAILED "tur checker failed to initialize" ++#endif ++ ++#ifdef CHECK_WWID ++static int ++do_inq(int fd, unsigned int timeout, char * wwid) ++{ ++ int ret = -1; ++ unsigned char inq_cmd[INQUIRY_CMDLEN] = ++ {INQUIRY_CMD, EVPD, PAGE_83, 0, SCSI_INQ_BUFF_LEN, 0 }; ++ unsigned char sense_buffer[32]; ++ unsigned char resp_buffer[SCSI_INQ_BUFF_LEN]; ++ char *pbuff; ++ ++ int m,k; ++ int retry_tur = 5; ++ struct sg_io_hdr io_hdr; ++ ++retry: ++ memset(resp_buffer, 0, sizeof(resp_buffer)); ++ memset(&io_hdr, 0, sizeof(struct sg_io_hdr)); ++ ++ io_hdr.interface_id = 'S'; ++ io_hdr.cmd_len = sizeof(inq_cmd); ++ io_hdr.mx_sb_len = sizeof(sense_buffer); ++ io_hdr.dxfer_direction = -3; // Data transfer from the device. ++ io_hdr.dxfer_len = sizeof(resp_buffer); ++ io_hdr.dxferp = (unsigned char *)resp_buffer; ++ io_hdr.cmdp = inq_cmd; ++ io_hdr.sbp = sense_buffer; ++ io_hdr.timeout = timeout; // IOCTL timeout value. ++ ++ if (ioctl(fd, SG_IO, &io_hdr) < 0) { ++ condlog(0, "SG_IO ioctl failed: %s", strerror(errno)); ++ return ret; ++ } ++ if (io_hdr.info & SG_INFO_OK_MASK){ ++ int key = 0, asc, ascq; ++ ++ if (io_hdr.host_status == DID_BUS_BUSY || ++ io_hdr.host_status == DID_ERROR || ++ io_hdr.host_status == DID_TRANSPORT_DISRUPTED) { ++ if (--retry_tur) ++ goto retry; ++ } ++ if (io_hdr.sb_len_wr > 3) { ++ if (io_hdr.sbp[0] == 0x72 || io_hdr.sbp[0] == 0x73) { ++ key = io_hdr.sbp[1] & 0x0f; ++ asc = io_hdr.sbp[2]; ++ ascq = io_hdr.sbp[3]; ++ } else if (io_hdr.sb_len_wr > 13 && ++ ((io_hdr.sbp[0] & 0x7f) == 0x70 || ++ (io_hdr.sbp[0] & 0x7f) == 0x71)) { ++ key = io_hdr.sbp[2] & 0x0f; ++ asc = io_hdr.sbp[12]; ++ ascq = io_hdr.sbp[13]; ++ } ++ } ++ if (key == 0x6) { ++ /* Unit Attention, retry */ ++ if (--retry_tur) ++ goto retry; ++ } ++ return ret; ++ } ++ ++ pbuff = (char *) resp_buffer; ++ ++ wwid[0] = '3'; ++ for (m = 8, k = 1; m < 11; ++m, k+=2) ++ sprintf(&wwid[k], "%02x", (unsigned int)pbuff[m] & 0xff); ++ for (m = 11; m < 24; ++m, k+=2) ++ sprintf(&wwid[k], "%02x", (unsigned int)pbuff[m] & 0xff); ++ ++ return (ret = 0); ++} ++#endif + + struct tur_checker_context { + dev_t devt; +@@ -43,6 +132,7 @@ struct tur_checker_context { + pthread_cond_t active; + pthread_spinlock_t hldr_lock; + int holders; ++ char wwid[WWID_SIZE]; + char message[CHECKER_MSG_LEN]; + }; + +@@ -100,12 +190,15 @@ void libcheck_free (struct checker * c) + #define TUR_MSG(msg, fmt, args...) snprintf(msg, CHECKER_MSG_LEN, fmt, ##args); + + int +-tur_check(int fd, unsigned int timeout, char *msg) ++tur_check (int fd, unsigned int timeout, char *msg, char *wwid) + { + struct sg_io_hdr io_hdr; + unsigned char turCmdBlk[TUR_CMD_LEN] = { 0x00, 0, 0, 0, 0, 0 }; + unsigned char sense_buffer[32]; + int retry_tur = 5; ++#ifdef CHECK_WWID ++ char new_wwid[WWID_SIZE]; ++#endif + + retry: + memset(&io_hdr, 0, sizeof (struct sg_io_hdr)); +@@ -179,6 +272,24 @@ tur_check(int fd, unsigned int timeout, + TUR_MSG(msg, MSG_TUR_DOWN); + return PATH_DOWN; + } ++#ifdef CHECK_WWID ++ if (!do_inq(fd, timeout, new_wwid)) { ++ ++ if(!strcmp(wwid, "\0")) { ++ strcpy(wwid, new_wwid); ++ goto up; ++ } ++ ++ if (strcmp(wwid , new_wwid)) { ++ condlog(0, ++ "hp_tur: Lun collided. new_wwid %s old_wwid %s", ++ new_wwid, wwid); ++ TUR_MSG(msg, MSG_TUR_DOWN); ++ return PATH_DOWN; ++ } ++ } ++up: ++#endif + TUR_MSG(msg, MSG_TUR_UP); + return PATH_UP; + } +@@ -215,7 +326,7 @@ void *tur_thread(void *ctx) + ct->state = PATH_PENDING; + pthread_mutex_unlock(&ct->lock); + +- state = tur_check(ct->fd, ct->timeout, ct->message); ++ state = tur_check(ct->fd, ct->timeout, ct->message, ct->wwid); + + /* TUR checker done */ + pthread_mutex_lock(&ct->lock); +@@ -275,7 +386,7 @@ libcheck_check (struct checker * c) + ct->devt = sb.st_rdev; + + if (c->sync) +- return tur_check(c->fd, c->timeout, c->message); ++ return tur_check(c->fd, c->timeout, c->message, ct->wwid); + + /* + * Async mode +@@ -319,7 +430,8 @@ libcheck_check (struct checker * c) + pthread_mutex_unlock(&ct->lock); + condlog(3, "%d:%d: tur thread not responding, " + "using sync mode", TUR_DEVT(ct)); +- return tur_check(c->fd, c->timeout, c->message); ++ return tur_check(c->fd, c->timeout, c->message, ++ ct->wwid); + } + /* Start new TUR checker */ + ct->state = PATH_UNCHECKED; +@@ -337,7 +449,8 @@ libcheck_check (struct checker * c) + ct->holders--; + condlog(3, "%d:%d: failed to start tur thread, using" + " sync mode", TUR_DEVT(ct)); +- return tur_check(c->fd, c->timeout, c->message); ++ return tur_check(c->fd, c->timeout, c->message, ++ ct->wwid); + } + pthread_attr_destroy(&attr); + tur_timeout(&tsp); +Index: multipath-tools-111219/multipath.conf.annotated +=================================================================== +--- multipath-tools-111219.orig/multipath.conf.annotated ++++ multipath-tools-111219/multipath.conf.annotated +@@ -96,7 +96,8 @@ + # # name : path_checker, checker + # # scope : multipath & multipathd + # # desc : the default method used to determine the paths' state +-# # values : readsector0|tur|emc_clariion|hp_sw|directio|rdac|cciss_tur ++# # values : readsector0|tur|emc_clariion|hp_sw|directio|rdac| ++# cciss_tur|hp_tur + # # default : directio + # # + # path_checker directio +@@ -493,7 +494,7 @@ + # # scope : multipathd & multipathd + # # desc : path checking alorithm to use to check path state + # # values : readsector0|tur|emc_clariion|hp_sw|directio|rdac| +-# # cciss_tur ++# # cciss_tur|hp_tur + # # + # path_checker directio + # |