refactor dual checksum support.

[fs/lustre-release.git] / lustre / osc / lproc_osc.c

diff --git a/lustre/osc/lproc_osc.c b/lustre/osc/lproc_osc.c
index eabdc3f..8712ef6 100644 (file)
--- a/lustre/osc/lproc_osc.c
+++ b/lustre/osc/lproc_osc.c
@@ -25,9 +25,8 @@
 #define DEBUG_SUBSYSTEM S_CLASS
 
 #include <linux/version.h>
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
 #include <asm/statfs.h>
-#endif
+#include <obd_cksum.h>
 #include <obd_class.h>
 #include <lprocfs_status.h>
 #include <linux/seq_file.h>
@@ -303,7 +302,89 @@ static int osc_wr_checksum(struct file *file, const char *buffer,
         return count;
 }
 
-static struct lprocfs_vars lprocfs_obd_vars[] = {
+static int osc_rd_checksum_type(char *page, char **start, off_t off, int count,
+                                int *eof, void *data)
+{
+        struct obd_device *obd = data;
+        int i, len =0;
+        DECLARE_CKSUM_NAME;
+
+        if (obd == NULL)
+                return 0;
+
+        for (i = 0; i < ARRAY_SIZE(cksum_name) && len < count; i++) {
+                if (((1 << i) & obd->u.cli.cl_supp_cksum_types) == 0)
+                        continue;
+                if (obd->u.cli.cl_cksum_type == (1 << i))
+                        len += snprintf(page + len, count - len, "[%s] ",
+                                        cksum_name[i]);
+                else
+                        len += snprintf(page + len, count - len, "%s ",
+                                        cksum_name[i]);
+        }
+        if (len < count)
+                len += sprintf(page + len, "\n");
+        return len;
+}
+
+static int osc_wd_checksum_type(struct file *file, const char *buffer,
+                                unsigned long count, void *data)
+{
+        struct obd_device *obd = data;
+        int i;
+        DECLARE_CKSUM_NAME;
+        char kernbuf[10];
+
+        if (obd == NULL)
+                return 0;
+
+        if (count > sizeof(kernbuf) - 1)
+                return -EINVAL;
+        if (copy_from_user(kernbuf, buffer, count))
+                return -EFAULT;
+        if (count > 0 && kernbuf[count - 1] == '\n')
+                kernbuf[count - 1] = '\0';
+        else
+                kernbuf[count] = '\0';
+
+        for (i = 0; i < ARRAY_SIZE(cksum_name); i++) {
+                if (((1 << i) & obd->u.cli.cl_supp_cksum_types) == 0)
+                        continue;
+                if (!strcmp(kernbuf, cksum_name[i])) {
+                       obd->u.cli.cl_cksum_type = 1 << i;
+                       return count;
+                }
+        }
+        return -EINVAL;
+}
+
+static int osc_rd_resend_count(char *page, char **start, off_t off, int count,
+                               int *eof, void *data)
+{
+        struct obd_device *obd = data;
+
+        return snprintf(page, count, "%u\n", atomic_read(&obd->u.cli.cl_resends)); 
+}
+
+static int osc_wr_resend_count(struct file *file, const char *buffer,
+                               unsigned long count, void *data)
+{
+        struct obd_device *obd = data;
+        int val, rc;
+
+        rc = lprocfs_write_helper(buffer, count, &val);
+        if (rc)
+                return rc;
+
+        if (val < 0)
+               return -EINVAL;
+
+        atomic_set(&obd->u.cli.cl_resends, val);
+
+        return count;
+}
+
+static struct lprocfs_vars lprocfs_osc_obd_vars[] = {
         { "uuid",            lprocfs_rd_uuid,        0, 0 },
         { "ping",            0, lprocfs_wr_ping,        0 },
         { "connect_flags",   lprocfs_rd_connect_flags, 0, 0 },
@@ -329,11 +410,12 @@ static struct lprocfs_vars lprocfs_obd_vars[] = {
         { "prealloc_next_id", osc_rd_prealloc_next_id, 0, 0 },
         { "prealloc_last_id", osc_rd_prealloc_last_id, 0, 0 },
         { "checksums",       osc_rd_checksum, osc_wr_checksum, 0 },
-        { "sptlrpc",         sptlrpc_lprocfs_rd, 0, 0 },
+        { "checksum_type",   osc_rd_checksum_type, osc_wd_checksum_type, 0 },
+        { "resend_count",    osc_rd_resend_count, osc_wr_resend_count, 0},
         { 0 }
 };
 
-static struct lprocfs_vars lprocfs_module_vars[] = {
+static struct lprocfs_vars lprocfs_osc_module_vars[] = {
         { "num_refs",        lprocfs_rd_numrefs,     0, 0 },
         { 0 }
 };
@@ -462,5 +544,10 @@ int lproc_osc_attach_seqstat(struct obd_device *dev)
                                       &osc_rpc_stats_fops, dev);
 }
 
-LPROCFS_INIT_VARS(osc, lprocfs_module_vars, lprocfs_obd_vars)
+void lprocfs_osc_init_vars(struct lprocfs_static_vars *lvars)
+{
+        lvars->module_vars = lprocfs_osc_module_vars;
+        lvars->obd_vars    = lprocfs_osc_obd_vars;
+}
 #endif /* LPROCFS */
+