Patchwork [v2] Fix ATA SMART and CHECK POWER MODE

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Submitter Brian Wheeler
Date Feb. 9, 2011, 6:26 p.m.
Message ID <1297275963.17770.15.camel@nibbler.dlib.indiana.edu>
Download mbox | patch
Permalink /patch/82512/
State New
Headers show

Comments

Brian Wheeler - Feb. 9, 2011, 6:26 p.m.
This patch fixes two things:

1) CHECK POWER MODE

The error return value wasn't always zero, so it would show up as
offline.  Error is now explicitly set to zero.

2) SMART

The smart values that were returned were invalid and tools like skdump
would not recognize that the smart data was actually valid and would
dump weird output.  The data has been fixed up and raw value support was
added.  Tools like skdump and palimpsest work as expected.

Changes from v1:
	* combined the thresholds and attributes into a single structure.


Signed-of-by: Brian Wheeler <bdwheele@indiana.edu>
------------

Patch

diff --git a/hw/ide/core.c b/hw/ide/core.c
index dd63664..3a9793b 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -34,15 +34,29 @@ 
 
 #include <hw/ide/internal.h>
 
-static const int smart_attributes[][5] = {
-    /* id,  flags, val, wrst, thrsh */
-    { 0x01, 0x03, 0x64, 0x64, 0x06}, /* raw read */
-    { 0x03, 0x03, 0x64, 0x64, 0x46}, /* spin up */
-    { 0x04, 0x02, 0x64, 0x64, 0x14}, /* start stop count */
-    { 0x05, 0x03, 0x64, 0x64, 0x36}, /* remapped sectors */
-    { 0x00, 0x00, 0x00, 0x00, 0x00}
+/* These values were taking from a running system. */
+static const int smart_attributes[][12] = {
+    /* id,  flags, hflags, val, wrst, raw (6 bytes), threshold */
+    /* raw read error rate*/
+    { 0x01, 0x03, 0x00, 0x74, 0x63, 0x31, 0x6d, 0x3f, 0x0d, 0x00, 0x00, 0x06},
+    /* spin up */
+    { 0x03, 0x03, 0x00, 0x61, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    /* start stop count */
+    { 0x04, 0x02, 0x00, 0x64, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14},
+    /* remapped sectors */
+    { 0x05, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24},
+    /* power on hours */
+    { 0x09, 0x03, 0x00, 0x61, 0x61, 0x68, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00},
+    /* power cycle count */
+    { 0x0c, 0x03, 0x00, 0x64, 0x64, 0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    /* airflow-temperature-celsius */
+    { 190,  0x03, 0x00, 0x64, 0x64, 0x1f, 0x00, 0x16, 0x22, 0x00, 0x00, 0x32},
+    /* end of list */
+    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
 };
 
+
+
 /* XXX: DVDs that could fit on a CD will be reported as a CD */
 static inline int media_present(IDEState *s)
 {
@@ -1843,6 +1857,7 @@  void ide_exec_cmd(IDEBus *bus, uint32_t val)
         break;
     case WIN_CHECKPOWERMODE1:
     case WIN_CHECKPOWERMODE2:
+        s->error = 0;
         s->nsector = 0xff; /* device active or idle */
         s->status = READY_STAT | SEEK_STAT;
         ide_set_irq(s->bus);
@@ -2068,24 +2083,24 @@  void ide_exec_cmd(IDEBus *bus, uint32_t val)
 	case SMART_ATTR_AUTOSAVE:
 		switch (s->sector) {
 		case 0x00:
-		s->smart_autosave = 0;
-		break;
+		    s->smart_autosave = 0;
+		    break;
 		case 0xf1:
-		s->smart_autosave = 1;
-		break;
+		    s->smart_autosave = 1;
+		    break;
 		default:
-		goto abort_cmd;
+		    goto abort_cmd;
 		}
 		s->status = READY_STAT | SEEK_STAT;
 		ide_set_irq(s->bus);
 		break;
 	case SMART_STATUS:
 		if (!s->smart_errors) {
-		s->hcyl = 0xc2;
-		s->lcyl = 0x4f;
+		    s->hcyl = 0xc2;
+		    s->lcyl = 0x4f;
 		} else {
-		s->hcyl = 0x2c;
-		s->lcyl = 0xf4;
+		    s->hcyl = 0x2c;
+		    s->lcyl = 0xf4;
 		}
 		s->status = READY_STAT | SEEK_STAT;
 		ide_set_irq(s->bus);
@@ -2094,13 +2109,13 @@  void ide_exec_cmd(IDEBus *bus, uint32_t val)
 		memset(s->io_buffer, 0, 0x200);
 		s->io_buffer[0] = 0x01; /* smart struct version */
 		for (n=0; n<30; n++) {
-		if (smart_attributes[n][0] == 0)
+		    if (smart_attributes[n][0] == 0)
 			break;
-		s->io_buffer[2+0+(n*12)] = smart_attributes[n][0];
-		s->io_buffer[2+1+(n*12)] = smart_attributes[n][4];
+		    s->io_buffer[2+0+(n*12)] = smart_attributes[n][0];
+		    s->io_buffer[2+1+(n*12)] = smart_attributes[n][11];
 		}
 		for (n=0; n<511; n++) /* checksum */
-		s->io_buffer[511] += s->io_buffer[n];
+		    s->io_buffer[511] += s->io_buffer[n];
 		s->io_buffer[511] = 0x100 - s->io_buffer[511];
 		s->status = READY_STAT | SEEK_STAT;
 		ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
@@ -2110,21 +2125,22 @@  void ide_exec_cmd(IDEBus *bus, uint32_t val)
 		memset(s->io_buffer, 0, 0x200);
 		s->io_buffer[0] = 0x01; /* smart struct version */
 		for (n=0; n<30; n++) {
-		if (smart_attributes[n][0] == 0)
+		    if (smart_attributes[n][0] == 0)
 			break;
-		s->io_buffer[2+0+(n*12)] = smart_attributes[n][0];
-		s->io_buffer[2+1+(n*12)] = smart_attributes[n][1];
-		s->io_buffer[2+3+(n*12)] = smart_attributes[n][2];
-		s->io_buffer[2+4+(n*12)] = smart_attributes[n][3];
+		    int i;
+		    for(i = 0; i < 11; i++) {
+			s->io_buffer[2+i+(n*12)] = smart_attributes[n][i];
+		    }
 		}
+
 		s->io_buffer[362] = 0x02 | (s->smart_autosave?0x80:0x00);
 		if (s->smart_selftest_count == 0) {
-		s->io_buffer[363] = 0;
+		    s->io_buffer[363] = 0;
 		} else {
-		s->io_buffer[363] =
+		    s->io_buffer[363] =
 			s->smart_selftest_data[3 + 
-					   (s->smart_selftest_count - 1) *
-					   24];
+					       (s->smart_selftest_count - 1) *
+					       24];
 		}
 		s->io_buffer[364] = 0x20; 
 		s->io_buffer[365] = 0x01; 
@@ -2136,9 +2152,9 @@  void ide_exec_cmd(IDEBus *bus, uint32_t val)
 		s->io_buffer[372] = 0x02; /* minutes for poll short test */
 		s->io_buffer[373] = 0x36; /* minutes for poll ext test */
 		s->io_buffer[374] = 0x01; /* minutes for poll conveyance */
-
-		for (n=0; n<511; n++) 
-		s->io_buffer[511] += s->io_buffer[n];
+		for (n=0; n<511; n++) { /* checksum */
+		    s->io_buffer[511] += s->io_buffer[n];
+		}
 		s->io_buffer[511] = 0x100 - s->io_buffer[511];
 		s->status = READY_STAT | SEEK_STAT;
 		ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
@@ -2147,32 +2163,31 @@  void ide_exec_cmd(IDEBus *bus, uint32_t val)
 	case SMART_READ_LOG:
 		switch (s->sector) {
 		case 0x01: /* summary smart error log */
-		memset(s->io_buffer, 0, 0x200);
-		s->io_buffer[0] = 0x01;
-		s->io_buffer[1] = 0x00; /* no error entries */
-		s->io_buffer[452] = s->smart_errors & 0xff;
-		s->io_buffer[453] = (s->smart_errors & 0xff00) >> 8;
-
-		for (n=0; n<511; n++)
+		    memset(s->io_buffer, 0, 0x200);
+		    s->io_buffer[0] = 0x01;
+		    s->io_buffer[1] = 0x00; /* no error entries */
+		    s->io_buffer[452] = s->smart_errors & 0xff;
+		    s->io_buffer[453] = (s->smart_errors & 0xff00) >> 8;
+		    for (n=0; n<511; n++)
 			s->io_buffer[511] += s->io_buffer[n];
-		s->io_buffer[511] = 0x100 - s->io_buffer[511];
-		break;
+		    s->io_buffer[511] = 0x100 - s->io_buffer[511];
+		    break;
 		case 0x06: /* smart self test log */
-		memset(s->io_buffer, 0, 0x200);
-		s->io_buffer[0] = 0x01;
-		if (s->smart_selftest_count == 0) {
+		    memset(s->io_buffer, 0, 0x200);
+		    s->io_buffer[0] = 0x01;
+		    if (s->smart_selftest_count == 0) {
 			s->io_buffer[508] = 0;
-		} else {
+		    } else {
 			s->io_buffer[508] = s->smart_selftest_count;
 			for (n=2; n<506; n++) 
-			s->io_buffer[n] = s->smart_selftest_data[n];
-		}
-		for (n=0; n<511; n++)
+			    s->io_buffer[n] = s->smart_selftest_data[n];
+		    }
+		    for (n=0; n<511; n++)
 			s->io_buffer[511] += s->io_buffer[n];
-		s->io_buffer[511] = 0x100 - s->io_buffer[511];
-		break;
+		    s->io_buffer[511] = 0x100 - s->io_buffer[511];
+		    break;
 		default:
-		goto abort_cmd;
+		    goto abort_cmd;
 		}
 		s->status = READY_STAT | SEEK_STAT;
 		ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);