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[SCSI] vmw_pvscsi: Try setting host->max_id as suggested by the device.
Fetch the config page from the device to learn max target id to set host->max_id. Also, fix some indentation issues and update the 'Maintained by' field. Signed-off-by: Arvind Kumar <arvindkumar@vmware.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Arvind Kumar
James Bottomley
parent
3f0bc3b331
commit
a93107355d
@ -17,7 +17,7 @@
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Maintained by: Alok N Kataria <akataria@vmware.com>
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* Maintained by: Arvind Kumar <arvindkumar@vmware.com>
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*
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*/
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@ -1178,11 +1178,67 @@ static int __devinit pvscsi_allocate_sg(struct pvscsi_adapter *adapter)
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return 0;
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}
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/*
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* Query the device, fetch the config info and return the
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* maximum number of targets on the adapter. In case of
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* failure due to any reason return default i.e. 16.
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*/
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static u32 pvscsi_get_max_targets(struct pvscsi_adapter *adapter)
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{
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struct PVSCSICmdDescConfigCmd cmd;
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struct PVSCSIConfigPageHeader *header;
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struct device *dev;
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dma_addr_t configPagePA;
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void *config_page;
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u32 numPhys = 16;
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dev = pvscsi_dev(adapter);
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config_page = pci_alloc_consistent(adapter->dev, PAGE_SIZE,
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&configPagePA);
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if (!config_page) {
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dev_warn(dev, "vmw_pvscsi: failed to allocate memory for config page\n");
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goto exit;
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}
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BUG_ON(configPagePA & ~PAGE_MASK);
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/* Fetch config info from the device. */
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cmd.configPageAddress = ((u64)PVSCSI_CONFIG_CONTROLLER_ADDRESS) << 32;
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cmd.configPageNum = PVSCSI_CONFIG_PAGE_CONTROLLER;
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cmd.cmpAddr = configPagePA;
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cmd._pad = 0;
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/*
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* Mark the completion page header with error values. If the device
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* completes the command successfully, it sets the status values to
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* indicate success.
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*/
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header = config_page;
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memset(header, 0, sizeof *header);
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header->hostStatus = BTSTAT_INVPARAM;
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header->scsiStatus = SDSTAT_CHECK;
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pvscsi_write_cmd_desc(adapter, PVSCSI_CMD_CONFIG, &cmd, sizeof cmd);
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if (header->hostStatus == BTSTAT_SUCCESS &&
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header->scsiStatus == SDSTAT_GOOD) {
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struct PVSCSIConfigPageController *config;
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config = config_page;
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numPhys = config->numPhys;
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} else
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dev_warn(dev, "vmw_pvscsi: PVSCSI_CMD_CONFIG failed. hostStatus = 0x%x, scsiStatus = 0x%x\n",
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header->hostStatus, header->scsiStatus);
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pci_free_consistent(adapter->dev, PAGE_SIZE, config_page, configPagePA);
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exit:
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return numPhys;
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}
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static int __devinit pvscsi_probe(struct pci_dev *pdev,
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const struct pci_device_id *id)
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{
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struct pvscsi_adapter *adapter;
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struct Scsi_Host *host;
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struct device *dev;
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unsigned int i;
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unsigned long flags = 0;
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int error;
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@ -1271,6 +1327,13 @@ static int __devinit pvscsi_probe(struct pci_dev *pdev,
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goto out_release_resources;
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}
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/*
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* Ask the device for max number of targets.
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*/
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host->max_id = pvscsi_get_max_targets(adapter);
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dev = pvscsi_dev(adapter);
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dev_info(dev, "vmw_pvscsi: host->max_id: %u\n", host->max_id);
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/*
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* From this point on we should reset the adapter if anything goes
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* wrong.
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@ -17,7 +17,7 @@
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Maintained by: Alok N Kataria <akataria@vmware.com>
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* Maintained by: Arvind Kumar <arvindkumar@vmware.com>
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*
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*/
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@ -26,7 +26,7 @@
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#include <linux/types.h>
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#define PVSCSI_DRIVER_VERSION_STRING "1.0.1.0-k"
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#define PVSCSI_DRIVER_VERSION_STRING "1.0.2.0-k"
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#define PVSCSI_MAX_NUM_SG_ENTRIES_PER_SEGMENT 128
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@ -39,28 +39,45 @@
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* host adapter status/error codes
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*/
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enum HostBusAdapterStatus {
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BTSTAT_SUCCESS = 0x00, /* CCB complete normally with no errors */
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BTSTAT_LINKED_COMMAND_COMPLETED = 0x0a,
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BTSTAT_LINKED_COMMAND_COMPLETED_WITH_FLAG = 0x0b,
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BTSTAT_DATA_UNDERRUN = 0x0c,
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BTSTAT_SELTIMEO = 0x11, /* SCSI selection timeout */
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BTSTAT_DATARUN = 0x12, /* data overrun/underrun */
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BTSTAT_BUSFREE = 0x13, /* unexpected bus free */
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BTSTAT_INVPHASE = 0x14, /* invalid bus phase or sequence requested by target */
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BTSTAT_LUNMISMATCH = 0x17, /* linked CCB has different LUN from first CCB */
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BTSTAT_SENSFAILED = 0x1b, /* auto request sense failed */
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BTSTAT_TAGREJECT = 0x1c, /* SCSI II tagged queueing message rejected by target */
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BTSTAT_BADMSG = 0x1d, /* unsupported message received by the host adapter */
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BTSTAT_HAHARDWARE = 0x20, /* host adapter hardware failed */
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BTSTAT_NORESPONSE = 0x21, /* target did not respond to SCSI ATN, sent a SCSI RST */
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BTSTAT_SENTRST = 0x22, /* host adapter asserted a SCSI RST */
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BTSTAT_RECVRST = 0x23, /* other SCSI devices asserted a SCSI RST */
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BTSTAT_DISCONNECT = 0x24, /* target device reconnected improperly (w/o tag) */
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BTSTAT_BUSRESET = 0x25, /* host adapter issued BUS device reset */
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BTSTAT_ABORTQUEUE = 0x26, /* abort queue generated */
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BTSTAT_HASOFTWARE = 0x27, /* host adapter software error */
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BTSTAT_HATIMEOUT = 0x30, /* host adapter hardware timeout error */
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BTSTAT_SCSIPARITY = 0x34, /* SCSI parity error detected */
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BTSTAT_SUCCESS = 0x00, /* CCB complete normally with no errors */
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BTSTAT_LINKED_COMMAND_COMPLETED = 0x0a,
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BTSTAT_LINKED_COMMAND_COMPLETED_WITH_FLAG = 0x0b,
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BTSTAT_DATA_UNDERRUN = 0x0c,
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BTSTAT_SELTIMEO = 0x11, /* SCSI selection timeout */
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BTSTAT_DATARUN = 0x12, /* data overrun/underrun */
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BTSTAT_BUSFREE = 0x13, /* unexpected bus free */
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BTSTAT_INVPHASE = 0x14, /* invalid bus phase or sequence
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* requested by target */
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BTSTAT_LUNMISMATCH = 0x17, /* linked CCB has different LUN from
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* first CCB */
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BTSTAT_INVPARAM = 0x1a, /* invalid parameter in CCB or segment
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* list */
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BTSTAT_SENSFAILED = 0x1b, /* auto request sense failed */
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BTSTAT_TAGREJECT = 0x1c, /* SCSI II tagged queueing message
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* rejected by target */
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BTSTAT_BADMSG = 0x1d, /* unsupported message received by the
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* host adapter */
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BTSTAT_HAHARDWARE = 0x20, /* host adapter hardware failed */
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BTSTAT_NORESPONSE = 0x21, /* target did not respond to SCSI ATN,
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* sent a SCSI RST */
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BTSTAT_SENTRST = 0x22, /* host adapter asserted a SCSI RST */
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BTSTAT_RECVRST = 0x23, /* other SCSI devices asserted a SCSI
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* RST */
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BTSTAT_DISCONNECT = 0x24, /* target device reconnected improperly
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* (w/o tag) */
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BTSTAT_BUSRESET = 0x25, /* host adapter issued BUS device reset */
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BTSTAT_ABORTQUEUE = 0x26, /* abort queue generated */
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BTSTAT_HASOFTWARE = 0x27, /* host adapter software error */
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BTSTAT_HATIMEOUT = 0x30, /* host adapter hardware timeout error */
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BTSTAT_SCSIPARITY = 0x34, /* SCSI parity error detected */
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};
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/*
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* SCSI device status values.
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*/
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enum ScsiDeviceStatus {
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SDSTAT_GOOD = 0x00, /* No errors. */
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SDSTAT_CHECK = 0x02, /* Check condition. */
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};
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/*
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@ -113,6 +130,29 @@ struct PVSCSICmdDescResetDevice {
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u8 lun[8];
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} __packed;
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/*
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* Command descriptor for PVSCSI_CMD_CONFIG --
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*/
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struct PVSCSICmdDescConfigCmd {
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u64 cmpAddr;
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u64 configPageAddress;
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u32 configPageNum;
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u32 _pad;
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} __packed;
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enum PVSCSIConfigPageType {
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PVSCSI_CONFIG_PAGE_CONTROLLER = 0x1958,
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PVSCSI_CONFIG_PAGE_PHY = 0x1959,
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PVSCSI_CONFIG_PAGE_DEVICE = 0x195a,
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};
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enum PVSCSIConfigPageAddressType {
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PVSCSI_CONFIG_CONTROLLER_ADDRESS = 0x2120,
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PVSCSI_CONFIG_BUSTARGET_ADDRESS = 0x2121,
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PVSCSI_CONFIG_PHY_ADDRESS = 0x2122,
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};
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/*
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* Command descriptor for PVSCSI_CMD_ABORT_CMD --
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*
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@ -332,6 +372,27 @@ struct PVSCSIRingCmpDesc {
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u32 _pad[2];
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} __packed;
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struct PVSCSIConfigPageHeader {
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u32 pageNum;
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u16 numDwords;
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u16 hostStatus;
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u16 scsiStatus;
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u16 reserved[3];
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} __packed;
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struct PVSCSIConfigPageController {
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struct PVSCSIConfigPageHeader header;
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u64 nodeWWN; /* Device name as defined in the SAS spec. */
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u16 manufacturer[64];
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u16 serialNumber[64];
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u16 opromVersion[32];
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u16 hwVersion[32];
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u16 firmwareVersion[32];
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u32 numPhys;
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u8 useConsecutivePhyWWNs;
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u8 reserved[3];
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} __packed;
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/*
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* Interrupt status / IRQ bits.
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*/
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