linux_dsm_epyc7002/drivers/net/ethernet/marvell
Antoine Tenart 3f13684948 net: mvpp2: fix the computation of the RXQs
The patch fixes the computation of RXQs being used by the PPv2 driver,
which is set depending on the PPv2 engine version and the queue mode
used. There are three cases:

- PPv2.1: 1 RXQ per CPU.
- PPV2.2 with MVPP2_QDIST_MULTI_MODE: 1 RXQ per CPU.
- PPv2.2 with MVPP2_QDIST_SINGLE_MODE: 1 RXQ is shared between the CPUs.

The PPv2 engine supports a maximum of 32 queues per port. This patch
adds a check so that we do not overstep this maximum.

It appeared the calculation was broken for PPv2.1 engines since
f8c6ba8424, as PPv2.1 ports ended up with a single RXQ while they
needed 4. This patch fixes it.

Fixes: f8c6ba8424 ("net: mvpp2: use only one rx queue per port per CPU")
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
..
mvpp2 net: mvpp2: fix the computation of the RXQs 2019-03-01 23:23:34 -08:00
octeontx2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-01-16 05:13:36 +12:00
Kconfig octeontx2-af: Add Marvell OcteonTX2 RVU AF driver 2018-10-10 10:06:01 -07:00
Makefile octeontx2-af: Add Marvell OcteonTX2 RVU AF driver 2018-10-10 10:06:01 -07:00
mv643xx_eth.c net: mv643xx_eth: disable clk on error path in mv643xx_eth_shared_probe() 2019-02-17 15:44:26 -08:00
mvmdio.c drivers: net: Remove device_node checks with of_mdiobus_register() 2018-05-16 14:20:36 -04:00
mvneta_bm.c net: mvneta: remove data pointer usage from device_node structure 2018-07-28 22:12:55 -07:00
mvneta_bm.h net: mvneta: Allocate page for the descriptor 2018-07-28 22:12:55 -07:00
mvneta.c net: marvell: neta: disable comphy when setting mode 2019-03-01 11:23:10 -08:00
pxa168_eth.c pxa168_eth: pass struct device to DMA API functions 2019-02-12 12:09:23 -05:00
skge.c skge: potential memory corruption in skge_get_regs() 2019-02-01 10:00:22 -08:00
skge.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sky2.c sky2: Increase D3 delay again 2019-02-19 14:16:41 -08:00
sky2.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00