From: Jakub Kicinski Date: Fri, 22 Aug 2025 22:59:52 +0000 (-0700) Subject: Merge branch '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net... X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=c61ac2ec102bb659e7d2e7c0f3553f9356341682;p=users%2Fjedix%2Flinux-maple.git Merge branch '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue Tony Nguyen says: ==================== idpf: replace Tx flow scheduling buffer ring with buffer pool Joshua Hay says: This series fixes a stability issue in the flow scheduling Tx send/clean path that results in a Tx timeout. The existing guardrails in the Tx path were not sufficient to prevent the driver from reusing completion tags that were still in flight (held by the HW). This collision would cause the driver to erroneously clean the wrong packet thus leaving the descriptor ring in a bad state. The main point of this fix is to replace the flow scheduling buffer ring with a large pool/array of buffers. The completion tag then simply is the index into this array. The driver tracks the free tags and pulls the next free one from a refillq. The cleaning routines simply use the completion tag from the completion descriptor to index into the array to quickly find the buffers to clean. All of the code to support this is added first to ensure traffic still passes with each patch. The final patch then removes all of the obsolete stashing code. * '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue: idpf: remove obsolete stashing code idpf: stop Tx if there are insufficient buffer resources idpf: replace flow scheduling buffer ring with buffer pool idpf: simplify and fix splitq Tx packet rollback error path idpf: improve when to set RE bit logic idpf: add support for Tx refillqs in flow scheduling mode ==================== Link: https://patch.msgid.link/20250821180100.401955-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski --- c61ac2ec102bb659e7d2e7c0f3553f9356341682