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43 Commits

Author SHA1 Message Date
Alex Forencich
265035769a Reorganize queue control registers 
Signed-off-by: Alex Forencich <alex@alexforencich.com>
 2023-07-07 01:19:19 -07:00
Alex Forencich
fa75b47b7b modules/mqnic: Convert more relatively frequent info-level printk calls to debug-level so they can be selectively enabled via dynamic debug 
Signed-off-by: Alex Forencich <alex@alexforencich.com>
 2023-07-07 01:10:49 -07:00
Joachim Foerster
1d729817a6 modules/mqnic: Turn "TX ring ... full ..." message into netdev-related debug message 
To not overwhelm any logging daemon. Full TX queues can be quite common
depending on a system's context and capabilities. Mostly all the details are not
required anyway in such cases.

To enable such debug messages and have their text turn up in dmesg and logging
daemons, the mqnic module has to be compiled with CPP symbol DEBUG being (`make
DEBUG=yes`) defined, or the kernel in use has to support "Dynamic Debug" [1]. In
the latter case all such debug messages in module mqnic can be enabled with:

echo 'module mqnic +pflmt' | sudo tee /sys/kernel/debug/dynamic_debug/control

To enable just this specific messages, based on its (partial) format:

echo 'format "TX ring %d full" +pflmt' | sudo tee /sys/kernel/debug/dynamic_debug/control

[1] https://www.kernel.org/doc/html/latest/admin-guide/dynamic-debug-howto.html

Signed-off-by: Joachim Foerster <joachim.foerster@missinglinkelectronics.com>
 2023-07-07 00:30:52 -07:00
Alex Forencich
448fa8eb4c Use SPDX 
Signed-off-by: Alex Forencich <alex@alexforencich.com>
 2023-06-26 11:44:57 -07:00
Alex Forencich
aef62af18c modules/mqnic: Associate messages with netdev 
Signed-off-by: Alex Forencich <alex@alexforencich.com>
 2023-05-03 22:24:19 -07:00
Alex Forencich
3c995dc8e0 Implement dynamic queue allocation in testbench and driver 
Signed-off-by: Alex Forencich <alex@alexforencich.com>
 2023-05-02 21:23:30 -07:00
Alex Forencich
1c7ae0ee73 modules/mqnic: Return pointers directly and use ERR_PTR during object creation 
Signed-off-by: Alex Forencich <alex@alexforencich.com>
 2023-04-30 21:57:32 -07:00
Alex Forencich
66f5b9fcc1 Clean up naming in testbenches, driver, and utils 
Signed-off-by: Alex Forencich <alex@alexforencich.com>
 2023-04-30 21:48:34 -07:00
Alex Forencich
30379cd8a3 Add phase tag to events and completions to avoid queue pointer reads 
Signed-off-by: Alex Forencich <alex@alexforencich.com>
 2023-04-06 20:43:13 -07:00
Alex Forencich
a8feaf2383 Advance TX/RX queue pointers based on completion records instead of MMIO reads 
Signed-off-by: Alex Forencich <alex@alexforencich.com>
 2023-04-04 22:12:32 -07:00
Alex Forencich
c5efd8ff0a modules/mqnic: Clean up ring allocation error handling 
Signed-off-by: Alex Forencich <alex@alexforencich.com>
 2022-08-15 23:50:36 -07:00
Alex Forencich
693809ab97 modules/mqnic: Use DMA_TO/FROM_DEVICE macros instead of the PCI versions 
Signed-off-by: Alex Forencich <alex@alexforencich.com>
 2022-08-06 01:27:19 -07:00
Alex Forencich
d506c9305a Fix pointer updating for correct teardown behavior 2022-01-16 00:04:53 -08:00
Alex Forencich
137a6778da Combine interface control blocks 2022-01-15 21:53:13 -08:00
Alex Forencich
ce21774f06 Register space reorganization 2021-12-29 22:31:46 -08:00
Alex Forencich
11f31c896c Split interface from net_device 2021-12-12 17:28:43 -08:00
Alex Forencich
a53d3acd3f Pass CQ ring instead of index 2021-12-12 14:20:56 -08:00
Alex Forencich
0418fe33a6 Rename ring_index to index 2021-12-12 13:46:09 -08:00
Alex Forencich
bfc8e959bf Split ring buffer allocation from ring creation 2021-12-12 01:52:24 -08:00
Alex Forencich
eeedc179fb Unconditionally deactivate rings 2021-12-12 01:42:14 -08:00
Alex Forencich
630d5a565d Disambiguate rings 2021-12-12 01:37:55 -08:00
Alex Forencich
5e65a384e2 Track ring active state 2021-12-10 21:04:52 -08:00
Alex Forencich
c9de7d24d0 Normalize ring_index parameter 2021-12-10 21:03:46 -08:00
Alex Forencich
ed36f169f9 Rename mqnic_priv.port to mqnic_priv.index 2021-12-10 21:01:51 -08:00
Alex Forencich
c739b05b69 Remove unnecessary priv parameters 2021-12-10 20:59:44 -08:00
Alex Forencich
27c9241a69 Update header comment, add SPDX license identifiers 2021-10-21 14:55:48 -07:00
Alex Forencich
323791cff3 Use __func__ for function name in debug messages 2021-10-21 14:44:05 -07:00
Alex Forencich
79f778d85a Remove out of memory messages; kernel should print stack trace when allocation fails 2021-10-21 14:01:29 -07:00
Alex Forencich
2adaf820b5 More kernel module coding style updates 2021-10-21 13:54:00 -07:00
Alex Forencich
5b49f09baa Fix kernel module coding style 2021-10-08 18:31:53 -07:00
Alex Forencich
220511f661 Use little endian types in hardware structs 2021-01-13 20:19:45 -08:00
Alex Forencich
e60e3a993f Add device object reference in mqnic_dev and clean up references to device object 2020-07-30 19:37:34 -07:00
Alex Forencich
a4108ecbf9 Implement TX scatter/gather in driver 2020-04-21 17:18:58 -07:00
Alex Forencich
a2ce454c22 Add log_desc_block_size to driver 2020-04-21 14:38:21 -07:00
Alex Forencich
3d959c2d4f Use configured ring stride 2020-03-10 23:07:30 -07:00
Alex Forencich
8536b7d2b7 Minor refactor of CQ processing 2020-03-10 22:06:02 -07:00
Alex Forencich
37294142b8 Rework DMA mapping 2020-03-09 17:21:39 -07:00
Alex Forencich
ef365b9bab Report which ring is full 2019-12-04 13:36:19 -08:00
Alex Forencich
2647f68124 Reset pointers after clearing buffers 2019-11-19 13:12:47 -08:00
Alex Forencich
9341f93b3f Check PTP feature bits 2019-09-12 10:47:26 -07:00
Alex Forencich
3abb8d9534 Add TX checksum offload support to driver 2019-08-22 00:46:48 -07:00
Alex Forencich
f5999faf60 Handle change in kernel API 2019-08-19 18:38:01 -07:00
Alex Forencich
6c5b6c99a1 Initial commit of mqnic kernel module 2019-07-17 18:13:51 -07:00