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/openbmc/linux/drivers/net/wireless/ath/wil6210/ |
H A D | txrx.c | 70801e1b Mon Dec 01 07:36:03 CST 2014 Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> wil6210: Rate limit "ring full" error message
In the wil_tx_ring, error message printed when tx attempted while vring has no space to accommodate all fragments of frame. Normally, such situation handled by stopping tx queue. But, if tx queue is by-passed (like pktgen does), this error will be triggered at high rate and dmesg will be flooded with this message. Whole system may become unstable and hang with no possible recover except power cycle.
Rate-limit it to prevent dmesg flooding.
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> 70801e1b Mon Dec 01 07:36:03 CST 2014 Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> wil6210: Rate limit "ring full" error message In the wil_tx_ring, error message printed when tx attempted while vring has no space to accommodate all fragments of frame. Normally, such situation handled by stopping tx queue. But, if tx queue is by-passed (like pktgen does), this error will be triggered at high rate and dmesg will be flooded with this message. Whole system may become unstable and hang with no possible recover except power cycle. Rate-limit it to prevent dmesg flooding. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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