static void ll_device_reset(const struct pvscsi_adapter *adapter, u32 target)
{
struct PVSCSICmdDescResetDevice cmd = { 0 };
dev_dbg(pvscsi_dev(adapter), "Reseting device: target=%u\n", target);
cmd.target = target;
pvscsi_write_cmd_desc(adapter, PVSCSI_CMD_RESET_DEVICE,
&cmd, sizeof(cmd));
}
/*
* Query the device, fetch the config info and return the
* maximum number of targets on the adapter. In case of
* failure due to any reason return default i.e. 16.
*/
static u32 pvscsi_get_max_targets(struct pvscsi_adapter *adapter)
{
struct PVSCSICmdDescConfigCmd cmd;
struct PVSCSIConfigPageHeader *header;
struct device *dev;
dma_addr_t configPagePA;
void *config_page;
u32 numPhys = 16;
dev = pvscsi_dev(adapter);
config_page = pci_alloc_consistent(adapter->dev, PAGE_SIZE,
&configPagePA);
if (!config_page) {
dev_warn(dev, "vmw_pvscsi: failed to allocate memory for config page\n");
goto exit;
}
BUG_ON(configPagePA & ~PAGE_MASK);
/* Fetch config info from the device. */
cmd.configPageAddress = ((u64)PVSCSI_CONFIG_CONTROLLER_ADDRESS) << 32;
cmd.configPageNum = PVSCSI_CONFIG_PAGE_CONTROLLER;
cmd.cmpAddr = configPagePA;
cmd._pad = 0;
/*
* Mark the completion page header with error values. If the device
* completes the command successfully, it sets the status values to
* indicate success.
*/
header = config_page;
memset(header, 0, sizeof *header);
header->hostStatus = BTSTAT_INVPARAM;
header->scsiStatus = SDSTAT_CHECK;
pvscsi_write_cmd_desc(adapter, PVSCSI_CMD_CONFIG, &cmd, sizeof cmd);
if (header->hostStatus == BTSTAT_SUCCESS &&
header->scsiStatus == SDSTAT_GOOD) {
struct PVSCSIConfigPageController *config;
config = config_page;
numPhys = config->numPhys;
} else
dev_warn(dev, "vmw_pvscsi: PVSCSI_CMD_CONFIG failed. hostStatus = 0x%x, scsiStatus = 0x%x\n",
header->hostStatus, header->scsiStatus);
pci_free_consistent(adapter->dev, PAGE_SIZE, config_page, configPagePA);
exit:
return numPhys;
}
static void ll_bus_reset(const struct pvscsi_adapter *adapter)
{
dev_dbg(pvscsi_dev(adapter), "Reseting bus on %p\n", adapter);
pvscsi_write_cmd_desc(adapter, PVSCSI_CMD_RESET_BUS, NULL, 0);
}
static void ll_adapter_reset(const struct pvscsi_adapter *adapter)
{
dev_dbg(pvscsi_dev(adapter), "Adapter Reset on %p\n", adapter);
pvscsi_write_cmd_desc(adapter, PVSCSI_CMD_ADAPTER_RESET, NULL, 0);
}
