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082d70b614
Current driver code arbitrarily assumes a max outstanding tx value of 16 parallel transmissions. Meanwhile, the device firmware provides its actual maximum inside its reply to the CMD_GET_SOFTWARE_INFO message. Under heavy tx traffic, if the interleaved transmissions count increases above the limit reported by firmware, the firmware breaks up badly, reports a massive list of internal errors, and the candump traces hardly matches the actual frames sent and received. On the other hand, in certain models, the firmware can support up to 48 tx URBs instead of just 16, increasing the driver throughput by two-fold and reducing the possibility of -ENOBUFs. Thus dynamically set the driver's max tx URBs value according to firmware replies. Signed-off-by: Ahmed S. Darwish <ahmed.darwish@valeo.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> |
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| .. | ||
| c_can | ||
| cc770 | ||
| m_can | ||
| mscan | ||
| sja1000 | ||
| softing | ||
| spi | ||
| usb | ||
| at91_can.c | ||
| bfin_can.c | ||
| dev.c | ||
| flexcan.c | ||
| grcan.c | ||
| janz-ican3.c | ||
| Kconfig | ||
| led.c | ||
| Makefile | ||
| pch_can.c | ||
| rcar_can.c | ||
| slcan.c | ||
| ti_hecc.c | ||
| vcan.c | ||
| xilinx_can.c | ||