Merge branch 'nfs-rdma' of git://git.linux-nfs.org/projects/anna/nfs-rdma into linux-next

* 'nfs-rdma' of git://git.linux-nfs.org/projects/anna/nfs-rdma: (916 commits)
  xprtrdma: Handle additional connection events
  xprtrdma: Remove RPCRDMA_PERSISTENT_REGISTRATION macro
  xprtrdma: Make rpcrdma_ep_disconnect() return void
  xprtrdma: Schedule reply tasklet once per upcall
  xprtrdma: Allocate each struct rpcrdma_mw separately
  xprtrdma: Rename frmr_wr
  xprtrdma: Disable completions for LOCAL_INV Work Requests
  xprtrdma: Disable completions for FAST_REG_MR Work Requests
  xprtrdma: Don't post a LOCAL_INV in rpcrdma_register_frmr_external()
  xprtrdma: Reset FRMRs after a flushed LOCAL_INV Work Request
  xprtrdma: Reset FRMRs when FAST_REG_MR is flushed by a disconnect
  xprtrdma: Properly handle exhaustion of the rb_mws list
  xprtrdma: Chain together all MWs in same buffer pool
  xprtrdma: Back off rkey when FAST_REG_MR fails
  xprtrdma: Unclutter struct rpcrdma_mr_seg
  xprtrdma: Don't invalidate FRMRs if registration fails
  xprtrdma: On disconnect, don't ignore pending CQEs
  xprtrdma: Update rkeys after transport reconnect
  xprtrdma: Limit data payload size for ALLPHYSICAL
  xprtrdma: Protect ia->ri_id when unmapping/invalidating MRs
  ...

1 files changed, 52 insertions, 3 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index a49c3d73ea2c..832006b5aab1 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -229,6 +229,31 @@ static enum hrtimer_restart rt2800usb_tx_sta_fifo_timeout(struct hrtimer *timer)
 /*
  * Firmware functions
  */
+static int rt2800usb_autorun_detect(struct rt2x00_dev *rt2x00dev)
+{
+	__le32 *reg;
+	u32 fw_mode;
+
+	reg = kmalloc(sizeof(*reg), GFP_KERNEL);
+	if (reg == NULL)
+		return -ENOMEM;
+	/* cannot use rt2x00usb_register_read here as it uses different
+	 * mode (MULTI_READ vs. DEVICE_MODE) and does not pass the
+	 * magic value USB_MODE_AUTORUN (0x11) to the device, thus the
+	 * returned value would be invalid.
+	 */
+	rt2x00usb_vendor_request(rt2x00dev, USB_DEVICE_MODE,
+				 USB_VENDOR_REQUEST_IN, 0, USB_MODE_AUTORUN,
+				 reg, sizeof(*reg), REGISTER_TIMEOUT_FIRMWARE);
+	fw_mode = le32_to_cpu(*reg);
+	kfree(reg);
+
+	if ((fw_mode & 0x00000003) == 2)
+		return 1;
+
+	return 0;
+}
+
 static char *rt2800usb_get_firmware_name(struct rt2x00_dev *rt2x00dev)
 {
 	return FIRMWARE_RT2870;
@@ -240,6 +265,7 @@ static int rt2800usb_write_firmware(struct rt2x00_dev *rt2x00dev,
 	int status;
 	u32 offset;
 	u32 length;
+	int retval;
 
 	/*
 	 * Check which section of the firmware we need.
@@ -257,8 +283,16 @@ static int rt2800usb_write_firmware(struct rt2x00_dev *rt2x00dev,
 	/*
 	 * Write firmware to device.
 	 */
-	rt2x00usb_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE,
-				      data + offset, length);
+	retval = rt2800usb_autorun_detect(rt2x00dev);
+	if (retval < 0)
+		return retval;
+	if (retval) {
+		rt2x00_info(rt2x00dev,
+			    "Firmware loading not required - NIC in AutoRun mode\n");
+	} else {
+		rt2x00usb_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE,
+					      data + offset, length);
+	}
 
 	rt2x00usb_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0);
 	rt2x00usb_register_write(rt2x00dev, H2M_MAILBOX_STATUS, ~0);
@@ -735,11 +769,26 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry,
 /*
  * Device probe functions.
  */
+static int rt2800usb_efuse_detect(struct rt2x00_dev *rt2x00dev)
+{
+	int retval;
+
+	retval = rt2800usb_autorun_detect(rt2x00dev);
+	if (retval < 0)
+		return retval;
+	if (retval)
+		return 1;
+	return rt2800_efuse_detect(rt2x00dev);
+}
+
 static int rt2800usb_read_eeprom(struct rt2x00_dev *rt2x00dev)
 {
 	int retval;
 
-	if (rt2800_efuse_detect(rt2x00dev))
+	retval = rt2800usb_efuse_detect(rt2x00dev);
+	if (retval < 0)
+		return retval;
+	if (retval)
 		retval = rt2800_read_eeprom_efuse(rt2x00dev);
 	else
 		retval = rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom,