Attachment 311414 Details for Bug 434988 – Backported patch for rhel5.3 - requires minor change to spec file as well

[patch] Backported patch for rhel5.3 - requires minor change to spec file as well

434988_mpath_prio_hp.patch (text/plain), 5.03 KB, created by Dave Wysochanski on 2008-07-09 20:14:36 UTC

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Creator: Dave Wysochanski

Created: 2008-07-09 20:14:36 UTC

Size: 5.03 KB

patch

obsolete

>Index: multipath-tools-0.4.7.rhel5.10/path_priority/pp_hp_sw/Makefile
>===================================================================
>--- /dev/null
>+++ multipath-tools-0.4.7.rhel5.10/path_priority/pp_hp_sw/Makefile
>@@ -0,0 +1,29 @@
>+EXEC		= mpath_prio_hp_sw
>+BUILD		= glibc
>+OBJS		= pp_hp_sw.o
>+
>+TOPDIR		= ../..
>+include $(TOPDIR)/Makefile.inc
>+
>+all: $(BUILD)
>+
>+glibc:	$(OBJS)
>+	$(CC) -static -o $(EXEC).static $(OBJS) $(LDFLAGS)
>+
>+klibc:	$(OBJS)
>+	$(CC) -static -o $(EXEC) $(OBJS)
>+
>+install: $(BUILD)
>+	install -d $(DESTDIR)$(bindir)
>+	install -m 755 $(EXEC).static $(DESTDIR)$(bindir)/$(EXEC).static
>+	ln -sf $(EXEC).static $(DESTDIR)$(bindir)/$(EXEC)
>+
>+uninstall:
>+	rm $(DESTDIR)$(bindir)/$(EXEC)
>+	rm $(DESTDIR)$(bindir)/$(EXEC).static
>+
>+clean:
>+	rm -f *.o $(EXEC).static
>+
>+%.o:	%.c
>+	$(CC) $(CFLAGS) -c -o $@ $<
>Index: multipath-tools-0.4.7.rhel5.10/path_priority/pp_hp_sw/pp_hp_sw.c
>===================================================================
>--- /dev/null
>+++ multipath-tools-0.4.7.rhel5.10/path_priority/pp_hp_sw/pp_hp_sw.c
>@@ -0,0 +1,119 @@
>+/*
>+ * Path priority checker for HP active/standby controller
>+ *
>+ * Check the path state and sort them into groups.
>+ * There is actually a preferred path in the controller;
>+ * we should ask HP on how to retrieve that information.
>+ */
>+#include <stdio.h>
>+#include <stdlib.h>
>+#include <string.h>
>+#include <sys/types.h>
>+#include <sys/stat.h>
>+#include <unistd.h>
>+#include <fcntl.h>
>+#include <sys/ioctl.h>
>+#include <errno.h>
>+
>+#define TUR_CMD_LEN		6
>+#define SCSI_CHECK_CONDITION	0x2
>+#define SCSI_COMMAND_TERMINATED	0x22
>+#define SG_ERR_DRIVER_SENSE	0x08
>+#define RECOVERED_ERROR		0x01
>+#define NOT_READY		0x02
>+#define UNIT_ATTENTION		0x06
>+
>+#define HP_PATH_ACTIVE		0x04
>+#define HP_PATH_STANDBY		0x02
>+#define HP_PATH_FAILED		0x00
>+
>+#include "../../libmultipath/sg_include.h"
>+
>+int hp_sw_prio(const char *dev)
>+{
>+        unsigned char turCmdBlk[TUR_CMD_LEN] = { 0x00, 0, 0, 0, 0, 0 };
>+	unsigned char sb[128];
>+	struct sg_io_hdr io_hdr;
>+	int ret = HP_PATH_FAILED;
>+	int fd;
>+
>+	fd = open(dev, O_RDWR|O_NONBLOCK);
>+
>+	if (fd <= 0) {
>+		fprintf(stderr, "Opening the device failed.\n");
>+		goto out;
>+	}
>+
>+	memset(&io_hdr, 0, sizeof (struct sg_io_hdr));
>+	io_hdr.interface_id = 'S';
>+	io_hdr.cmd_len = sizeof (turCmdBlk);
>+	io_hdr.mx_sb_len = sizeof (sb);
>+	io_hdr.dxfer_direction = SG_DXFER_NONE;
>+	io_hdr.cmdp = turCmdBlk;
>+	io_hdr.sbp = sb;
>+	io_hdr.timeout = 60000;
>+	io_hdr.pack_id = 0;
>+ retry:
>+	if (ioctl(fd, SG_IO, &io_hdr) < 0) {
>+		fprintf(stderr, "sending tur command failed\n");
>+		goto out;
>+	}
>+        io_hdr.status &= 0x7e;
>+        if ((0 == io_hdr.status) && (0 == io_hdr.host_status) &&
>+            (0 == io_hdr.driver_status)) {
>+		/* Command completed normally, path is active */
>+                ret = HP_PATH_ACTIVE;
>+	}
>+
>+        if ((SCSI_CHECK_CONDITION == io_hdr.status) ||
>+            (SCSI_COMMAND_TERMINATED == io_hdr.status) ||
>+            (SG_ERR_DRIVER_SENSE == (0xf & io_hdr.driver_status))) {
>+                if (io_hdr.sbp && (io_hdr.sb_len_wr > 2)) {
>+                        int sense_key, asc, asq;
>+                        unsigned char * sense_buffer = io_hdr.sbp;
>+                        if (sense_buffer[0] & 0x2) {
>+                                sense_key = sense_buffer[1] & 0xf;
>+				asc = sense_buffer[2];
>+				asq = sense_buffer[3];
>+			} else {
>+                                sense_key = sense_buffer[2] & 0xf;
>+				asc = sense_buffer[12];
>+				asq = sense_buffer[13];
>+			}
>+                        if(RECOVERED_ERROR == sense_key)
>+                                ret = HP_PATH_ACTIVE;
>+			if(NOT_READY == sense_key) {
>+				if (asc == 0x04 && asq == 0x02) {
>+					/* This is a standby path */
>+					ret = HP_PATH_STANDBY;
>+				}
>+			}
>+			if(UNIT_ATTENTION == sense_key) {
>+				if (asc == 0x29) {
>+					/* Retry for device reset */
>+					goto retry;
>+				}
>+			}
>+                }
>+        }
>+
>+	close(fd);
>+
>+out:
>+	return(ret);
>+}
>+
>+int
>+main (int argc, char **argv)
>+{
>+	int prio;
>+	if (argc != 2) {
>+		fprintf(stderr, "Arguments wrong!\n");
>+		prio = 0;
>+	} else
>+		prio = hp_sw_prio(argv[1]);
>+
>+	printf("%d\n", prio);
>+	exit(0);
>+}
>+
>Index: multipath-tools-0.4.7.rhel5.10/Makefile
>===================================================================
>--- multipath-tools-0.4.7.rhel5.10.orig/Makefile
>+++ multipath-tools-0.4.7.rhel5.10/Makefile
>@@ -21,11 +21,13 @@ export KRNLSRC
> export KRNLOBJ
> BUILDDIRS = multipath multipathd kpartx cciss_id path_priority/pp_alua \
> 	    path_priority/pp_emc path_priority/pp_hds_modular \
>-	    path_priority/pp_netapp path_priority/pp_rdac path_priority/pp_tpc
>+	    path_priority/pp_netapp path_priority/pp_rdac \
>+	    path_priority/pp_tpc path_priority/pp_hp_sw
> 
> ALLDIRS = multipath multipathd kpartx cciss_id path_priority/pp_alua \
> 	  path_priority/pp_emc path_priority/pp_hds_modular \
>-	  path_priority/pp_netapp path_priority/pp_rdac path_priority/pp_tpc \
>+	  path_priority/pp_netapp path_priority/pp_rdac \
>+	  path_priority/pp_hp_sw path_priority/pp_tpc \
> 	  libmultipath libcheckers
> 
> VERSION = $(shell basename ${PWD} | cut -d'-' -f3)

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Attachments on bug 434988: 311414 | 311415