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ixgbevf: Check for RSS key before setting value

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The RSS key is being repopulated every time the interface is brought up
regardless of whether there is an existing value. If the user sets the RSS
key and the interface is brought up (e.g. reset), the user specified RSS
key will be overwritten.

This patch changes the rss_key to a pointer so we can check to see if the
key has been populated and preserve it accordingly.

Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Tony Nguyen
2017-04-13 07:26:07 -07:00
committed by Jeff Kirsher
parent 82fb670c5f
commit e60ae00361
3 changed files with 34 additions and 4 deletions
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drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
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@@ -319,7 +319,7 @@ struct ixgbevf_adapter {
spinlock_t mbx_lock;
unsigned long last_reset;
u32 rss_key[IXGBEVF_VFRSSRK_REGS];
u32 *rss_key;
u8 rss_indir_tbl[IXGBEVF_X550_VFRETA_SIZE];
};