iwlwifi: msix: limit max RX queues for 9000 family

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There is an issue in the HW DMA engine in the 9000 family of devices
when more than 6 RX queues are used.  The issue is that the FW may
hang when IWL_MVM_RXQ_NSSN_SYNC notifications are sent.

Fix this by limiting the number of RX queues to 6 in the 9000 family
of devices.

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200911204056.37d90f9ceb0c.I8dfe8a7d3a7ac9f0bc9d93e4a03f8165d8c999d2@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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This commit is contained in:

Mordechay Goodstein 2020-09-11 20:44:34 +03:00 • committed by Luca Coelho

parent 7e0ca7230b

commit 0cd38f4d05

2 changed files with 6 additions and 1 deletions

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1

drivers/net/wireless/intel/iwlwifi/iwl-trans.h

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6

drivers/net/wireless/intel/iwlwifi/pcie/trans.c

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