cvm_oct_check_rcv_error(9)
π cvm_oct_check_rcv_error β a Kernel API Manual moment π
okay so bestie, welcome to section 9 of the kernel API manual, and today's main character is cvm_oct_check_rcv_error β yes that's a whole mouthful, we're saying it with our chest π«Ά
β¨ NAME β¨
cvm_oct_check_rcv_error β the little function whose whole job is processing receive errors πΈ like it literally exists to deal with the packet drama so you don't have to.
π¦ SYNOPSIS π¦
int cvm_oct_check_rcv_error (struct cvmx_wqe *work );
that's it. that's the whole vibe. one argument, one int coming back at you π
π ARGUMENTS π
workβ a work queue entry that's pointing at the packet π so basically it's the little handle that tells you which packet we're doing the vibe check on. no packet, no party.
π₯ DESCRIPTION π₯
okay so here's the tea, and it's genuinely this simple:
- returns non-zero if the packet can be dropped ποΈ
- returns zero otherwise β¨
that's the whole contract, no cap. it's giving "small function, clear boundaries, knows its worth" and honestly? iconic. π
ngl, this is one of those functions where the description is shorter than the name β but the name is so long it all balances out fr fr π
π SEE ALSO π
- Kernel file:
./drivers/staging/octeon/ethernet-rx.cβ go read the source bestie, it's all right there π cvm_oct_do_interrupt(9)βcvm_oct_napi_poll(9)βcvm_oct_poll_controller(9)β
like the whole octeon ethernet squad, all in one friend group π
and that's the page!! mwah π this one shipped out of ./drivers/staging/octeon back in October 2026, so if you're reading it, congrats, you're officially caught up with the timeline π§β¨ bye bestie, slay your receive errors π
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms