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authorJussi Kivilinna <jussi.kivilinna@mbnet.fi>2011-01-31 21:49:33 +0300
committerJohn W. Linville <linville@tuxdriver.com>2011-02-05 00:29:50 +0300
commit8f2d8f869af5088d4e4866c8286f0599e83cc963 (patch)
tree8e3cbabc3db32a0182c7576de29509ffdda671c1 /drivers/net/wireless/zd1211rw/zd_usb.c
parent4a3b0874a481573bfd95d54c883248b4c4622572 (diff)
downloadlinux-8f2d8f869af5088d4e4866c8286f0599e83cc963.tar.xz
zd1211rw: lower hw command timeouts
Device command timeouts are set up very high (1 sec) and this causes AP beacon to lock up for long for example. Checking timeouts on device it's easy to see that 1 sec timeout is not needed, when device fails to response longer timeout doesn't help: [ 473.074419] zd1211rw 1-1:1.0: print_times() Read times: [ 473.175163] zd1211rw 1-1:1.0: print_time() 0 - 10 msec: 1506 [ 473.176429] zd1211rw 1-1:1.0: print_time() 11 - 50 msec: 0 [ 473.177955] zd1211rw 1-1:1.0: print_time() 51 - 100 msec: 0 [ 473.180703] zd1211rw 1-1:1.0: print_time() 101 - 250 msec: 0 [ 473.182101] zd1211rw 1-1:1.0: print_time() 251 - 500 msec: 0 [ 473.183221] zd1211rw 1-1:1.0: print_time() 500 - 1000 msec: 20 [ 473.184381] zd1211rw 1-1:1.0: print_time() 1000 - ... msec: 18 Also vendor driver doesn't use this long timeout. Therefore change timeout to 50msec. Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/zd1211rw/zd_usb.c')
-rw-r--r--drivers/net/wireless/zd1211rw/zd_usb.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c
index ccdf81ebc4f5..861dad192871 100644
--- a/drivers/net/wireless/zd1211rw/zd_usb.c
+++ b/drivers/net/wireless/zd1211rw/zd_usb.c
@@ -1392,7 +1392,7 @@ int zd_usb_ioread16v(struct zd_usb *usb, u16 *values,
udev = zd_usb_to_usbdev(usb);
prepare_read_regs_int(usb);
r = usb_bulk_msg(udev, usb_sndbulkpipe(udev, EP_REGS_OUT),
- req, req_len, &actual_req_len, 1000 /* ms */);
+ req, req_len, &actual_req_len, 50 /* ms */);
if (r) {
dev_dbg_f(zd_usb_dev(usb),
"error in usb_bulk_msg(). Error number %d\n", r);
@@ -1407,7 +1407,7 @@ int zd_usb_ioread16v(struct zd_usb *usb, u16 *values,
}
timeout = wait_for_completion_timeout(&usb->intr.read_regs.completion,
- msecs_to_jiffies(1000));
+ msecs_to_jiffies(50));
if (!timeout) {
disable_read_regs_int(usb);
dev_dbg_f(zd_usb_dev(usb), "read timed out\n");
@@ -1463,7 +1463,7 @@ int zd_usb_iowrite16v(struct zd_usb *usb, const struct zd_ioreq16 *ioreqs,
udev = zd_usb_to_usbdev(usb);
r = usb_bulk_msg(udev, usb_sndbulkpipe(udev, EP_REGS_OUT),
- req, req_len, &actual_req_len, 1000 /* ms */);
+ req, req_len, &actual_req_len, 50 /* ms */);
if (r) {
dev_dbg_f(zd_usb_dev(usb),
"error in usb_bulk_msg(). Error number %d\n", r);
@@ -1552,7 +1552,7 @@ int zd_usb_rfwrite(struct zd_usb *usb, u32 value, u8 bits)
udev = zd_usb_to_usbdev(usb);
r = usb_bulk_msg(udev, usb_sndbulkpipe(udev, EP_REGS_OUT),
- req, req_len, &actual_req_len, 1000 /* ms */);
+ req, req_len, &actual_req_len, 50 /* ms */);
if (r) {
dev_dbg_f(zd_usb_dev(usb),
"error in usb_bulk_msg(). Error number %d\n", r);