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| author | Koichiro Den <den@valinux.co.jp> | 2026-03-05 18:56:39 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-03-07 06:15:20 +0300 |
| commit | 24d9e73c7e000af7c1f1a1f669bdaa9bd7e88ea5 (patch) | |
| tree | 938bc6eab25ea872e0fde3e0082db989302c1199 /scripts/objdiff | |
| parent | b83bf617dc849f11e7b2f907540017b5aa42d167 (diff) | |
| download | linux-24d9e73c7e000af7c1f1a1f669bdaa9bd7e88ea5.tar.xz | |
net: ntb_netdev: Support ethtool channels for multi-queue
Support dynamic queue pair addition/removal via ethtool channels.
Use the combined channel count to control the number of netdev TX/RX
queues, each corresponding to a ntb_transport queue pair.
When the number of queues is reduced, tear down and free the removed
ntb_transport queue pairs (not just deactivate them) so other
ntb_transport clients can reuse the freed resources.
When the number of queues is increased, create additional queue pairs up
to NTB_NETDEV_MAX_QUEUES (=64). The effective limit is determined by the
underlying ntb_transport implementation and NTB hardware resources (the
number of MWs), so set_channels may return -ENOSPC if no more QPs can be
allocated.
Keep the default at one queue pair to preserve the previous behavior.
Signed-off-by: Koichiro Den <den@valinux.co.jp>
Link: https://patch.msgid.link/20260305155639.1885517-5-den@valinux.co.jp
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'scripts/objdiff')
0 files changed, 0 insertions, 0 deletions