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cxgbe(4): create a separate helper routine to write the global RSS key.

Description

cxgbe(4): create a separate helper routine to write the global RSS key.

While here, make sure only the PF driver attempts to program the global
RSS key (with options RSS). The VF driver doesn't have access to those
device registers.

MFC after: 1 week
Sponsored by: Chelsio Communications

Details

Provenance
npAuthored on Mar 19 2021, 8:28 PM
Parents
R10:c02c04f113fe: x86: consolidate hw watchpoint logic into new file
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