xcan_rx(9)

💖 xcan_rx(9) — Kernel API Manual, bestie edition 💖

okay so we are literally in the Kernel API Manual for xcan_rx(9), and this page is the group chat for the CAN isr received-frame completion moment. it’s giving “small function, important job” 💅

✨ NAME ✨

xcan_rx — Is called from CAN isr to complete the received frame processing. no cap, that’s the name-line tea 🫖

🌸 SYNOPSIS 🌸

int xcan_rx (struct net_device *ndev , int frame_base );

🎀 ARGUMENTS 🎀

• ndev — Pointer to net_device structure. it’s the net device bestie, okay? 💖
• frame_base — Register offset to the frame to be read. yes, that exact offset vibe.

🦋 DESCRIPTION 🦋

This function is invoked from the CAN isr(poll) to process the Rx frames. it does minimal processing and invokes netif_receive_skb to complete further processing. so like, it handles the rx moment but delegates the rest — lowkey iconic teamwork, fr fr ✨

💅 RETURN 💅

1 on success and 0 on failure. that’s the whole return vibe, bestie 🫶

🌈 SEE ALSO 🌈

go read these next, iykyk:

• Kernel file ./drivers/net/can/xilinx_can.c and struct xcan_priv(9)
• xcan_write_reg_le(9)
• xcan_read_reg_le(9)
• xcan_write_reg_be(9)
• xcan_read_reg_be(9)
• xcan_rx_int_mask(9)
• set_reset_mode(9)
• xcan_set_bittiming(9)
• xcan_chip_start(9)
• xcan_do_set_mode(9)
• xcan_write_frame(9)
• xcan_start_xmit_fifo(9)
• xcan_start_xmit_mailbox(9)
• xcan_start_xmit(9)
• xcanfd_rx(9)
• xcan_current_error_state(9)
• xcan_set_error_state(9)
• xcan_update_error_state_after_rxtx(9)
• xcan_err_interrupt(9)
• xcan_state_interrupt(9)
• xcan_rx_fifo_get_next_frame(9)
• xcan_rx_poll(9)
• xcan_tx_interrupt(9)
• xcan_interrupt(9)
• xcan_chip_stop(9)
• xcan_open(9)
• xcan_close(9)
• xcan_get_berr_counter(9)
• xcan_get_auto_tdcv(9)
• xcan_suspend(9)
• xcan_resume(9)
• xcan_runtime_suspend(9)
• xcan_runtime_resume(9)
• xcan_probe(9)
• xcan_remove(9)

and that’s the page! source/version footer vibe: ./drivers/net/can, date October 2026, page xcan_rx(9) 💖🫶