Lines Matching +full:queue +full:- +full:rx

1 .. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
23 of event (packet Rx and Tx) processing.
30 of the NAPI instance while the method is the driver-specific event
37 -----------
55 ------------
64 argument - drivers can process completions for any number of Tx
66 Rx packets. Rx processing is usually much more expensive.
68 In other words for Rx processing the ``budget`` argument limits how many
69 packets driver can process in a single poll. Rx specific APIs like page
77    skb Tx completions and no Rx or XDP packets.
96    or return ``budget - 1``.
101 -------------
109 As mentioned in the :ref:`drv_ctrl` section - napi_disable() and subsequent
118 --------------------------
121 the NAPI instance - until NAPI polling finishes any further
125 to IRQ being auto-masked by the device) should use the napi_schedule_prep()
128 .. code-block:: c
130   if (napi_schedule_prep(&v->napi)) {
131       mydrv_mask_rxtx_irq(v->idx);
133       __napi_schedule(&v->napi);
138 .. code-block:: c
140   if (budget && napi_complete_done(&v->napi, work_done)) {
141     mydrv_unmask_rxtx_irq(v->idx);
142     return min(work_done, budget - 1);
150 Instance to queue mapping
151 -------------------------
156 abstraction without specific user-facing semantics. That said, most networking
159 NAPI instances most often correspond 1:1:1 to interrupts and queue pairs
160 (queue pair is a set of a single Rx and single Tx queue).
163 or Rx and Tx queues can be serviced by separate NAPI instances on a single
164 core. Regardless of the queue assignment, however, there is usually still
168 each channel can be either ``rx``, ``tx`` or ``combined``. It's not clear
171 a configuration of 1 ``rx``, 1 ``tx`` and 1 ``combined`` channel is expected
172 to utilize 3 interrupts, 2 Rx and 2 Tx queues.
182 -----------------------
198 ------------
211 ---------------
216 Very high request-per-second applications (especially routing/forwarding
235 -------------
241 thread (called ``napi/${ifc-name}-${napi-id}``).