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Commit c1fbdd78 authored by Stefan Richter's avatar Stefan Richter
Browse files

ieee1394: sbp2: don't assume zero model_id or firmware_revision if there is none 



This makes sbp2 behave more like firewire-sbp2 which reports 0xff000000
as immediate value if there are no unit directory entries for model_id
or firmware_revision.

It does not reduce matches with the currently existing quirks table; the
only zero entry there is for a device which actually does have a zero
model_id.  It only changes how model_id and firmware_revision are logged
if they are missing.

Other functionally unrelated changes:  The model_id member of quirks
list entries is renamed to model;  the value (but not the effect) of
SBP2_ROM_VALUE_WILDCARD is changed.  Now this part of the source is
identical with firewire-sbp2 for easier maintenance.

Signed-off-by: default avatarStefan Richter <stefanr@s5r6.in-berlin.de>
parent d3e3e970

drivers/ieee1394/sbp2.c

+20 −18
Original line number Diff line number Diff line
@@ -347,8 +347,8 @@ static struct scsi_host_template sbp2_shost_template = { 
	.sdev_attrs		 = sbp2_sysfs_sdev_attrs,

};



/* for match-all entries in sbp2_workarounds_table */

#define SBP2_ROM_VALUE_WILDCARD 0x1000000

#define SBP2_ROM_VALUE_WILDCARD ~0         /* match all */

#define SBP2_ROM_VALUE_MISSING  0xff000000 /* not present in the unit dir. */



/*

 * List of devices with known bugs.
@@ -359,60 +359,60 @@ static struct scsi_host_template sbp2_shost_template = { 
 */

static const struct {

	u32 firmware_revision;

	u32 model_id;

	u32 model;

	unsigned workarounds;

} sbp2_workarounds_table[] = {

	/* DViCO Momobay CX-1 with TSB42AA9 bridge */ {

		.firmware_revision	= 0x002800,

		.model_id		= 0x001010,

		.model			= 0x001010,

		.workarounds		= SBP2_WORKAROUND_INQUIRY_36 |

					  SBP2_WORKAROUND_MODE_SENSE_8 |

					  SBP2_WORKAROUND_POWER_CONDITION,

	},

	/* DViCO Momobay FX-3A with TSB42AA9A bridge */ {

		.firmware_revision	= 0x002800,

		.model_id		= 0x000000,

		.model			= 0x000000,

		.workarounds		= SBP2_WORKAROUND_DELAY_INQUIRY |

					  SBP2_WORKAROUND_POWER_CONDITION,

	},

	/* Initio bridges, actually only needed for some older ones */ {

		.firmware_revision	= 0x000200,

		.model_id		= SBP2_ROM_VALUE_WILDCARD,

		.model			= SBP2_ROM_VALUE_WILDCARD,

		.workarounds		= SBP2_WORKAROUND_INQUIRY_36,

	},

	/* PL-3507 bridge with Prolific firmware */ {

		.firmware_revision	= 0x012800,

		.model_id		= SBP2_ROM_VALUE_WILDCARD,

		.model			= SBP2_ROM_VALUE_WILDCARD,

		.workarounds		= SBP2_WORKAROUND_POWER_CONDITION,

	},

	/* Symbios bridge */ {

		.firmware_revision	= 0xa0b800,

		.model_id		= SBP2_ROM_VALUE_WILDCARD,

		.model			= SBP2_ROM_VALUE_WILDCARD,

		.workarounds		= SBP2_WORKAROUND_128K_MAX_TRANS,

	},

	/* Datafab MD2-FW2 with Symbios/LSILogic SYM13FW500 bridge */ {

		.firmware_revision	= 0x002600,

		.model_id		= SBP2_ROM_VALUE_WILDCARD,

		.model			= SBP2_ROM_VALUE_WILDCARD,

		.workarounds		= SBP2_WORKAROUND_128K_MAX_TRANS,

	},

	/* iPod 4th generation */ {

		.firmware_revision	= 0x0a2700,

		.model_id		= 0x000021,

		.model			= 0x000021,

		.workarounds		= SBP2_WORKAROUND_FIX_CAPACITY,

	},

	/* iPod mini */ {

		.firmware_revision	= 0x0a2700,

		.model_id		= 0x000022,

		.model			= 0x000022,

		.workarounds		= SBP2_WORKAROUND_FIX_CAPACITY,

	},

	/* iPod mini */ {

		.firmware_revision	= 0x0a2700,

		.model_id		= 0x000023,

		.model			= 0x000023,

		.workarounds		= SBP2_WORKAROUND_FIX_CAPACITY,

	},

	/* iPod Photo */ {

		.firmware_revision	= 0x0a2700,

		.model_id		= 0x00007e,

		.model			= 0x00007e,

		.workarounds		= SBP2_WORKAROUND_FIX_CAPACITY,

	}

};
@@ -1341,13 +1341,15 @@ static void sbp2_parse_unit_directory(struct sbp2_lu *lu, 
	struct csr1212_keyval *kv;

	struct csr1212_dentry *dentry;

	u64 management_agent_addr;

	u32 unit_characteristics, firmware_revision;

	u32 unit_characteristics, firmware_revision, model;

	unsigned workarounds;

	int i;



	management_agent_addr = 0;

	unit_characteristics = 0;

	firmware_revision = 0;

	firmware_revision = SBP2_ROM_VALUE_MISSING;

	model = ud->flags & UNIT_DIRECTORY_MODEL_ID ?

				ud->model_id : SBP2_ROM_VALUE_MISSING;



	csr1212_for_each_dir_entry(ud->ne->csr, kv, ud->ud_kv, dentry) {

		switch (kv->key.id) {
@@ -1388,9 +1390,9 @@ static void sbp2_parse_unit_directory(struct sbp2_lu *lu, 
			    sbp2_workarounds_table[i].firmware_revision !=

			    (firmware_revision & 0xffff00))

				continue;

			if (sbp2_workarounds_table[i].model_id !=

			if (sbp2_workarounds_table[i].model !=

			    SBP2_ROM_VALUE_WILDCARD &&

			    sbp2_workarounds_table[i].model_id != ud->model_id)

			    sbp2_workarounds_table[i].model != model)

				continue;

			workarounds |= sbp2_workarounds_table[i].workarounds;

			break;
@@ -1403,7 +1405,7 @@ static void sbp2_parse_unit_directory(struct sbp2_lu *lu, 
			  NODE_BUS_ARGS(ud->ne->host, ud->ne->nodeid),

			  workarounds, firmware_revision,

			  ud->vendor_id ? ud->vendor_id : ud->ne->vendor_id,

			  ud->model_id);

			  model);



	/* We would need one SCSI host template for each target to adjust

	 * max_sectors on the fly, therefore warn only. */