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fm10k: disable receive queue when configuring ring

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Write to RXQCTL register to disable the receive queue when configuring
the RX ring.

Signed-off-by: Ngai-Mint Kwan <ngai-mint.kwan@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Ngai-Mint Kwan 2017-01-12 15:59:42 -08:00 committed by Jeff Kirsher
parent 02957703ca
commit 16b1889f8b
1 changed files with 1 additions and 0 deletions
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drivers/net/ethernet/intel/fm10k/fm10k_pci.c
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@ -754,6 +754,7 @@ static void fm10k_configure_rx_ring(struct fm10k_intfc *interface,
/* disable queue to avoid issues while updating state */ /* disable queue to avoid issues while updating state */
rxqctl = fm10k_read_reg(hw, FM10K_RXQCTL(reg_idx)); rxqctl = fm10k_read_reg(hw, FM10K_RXQCTL(reg_idx));
rxqctl &= ~FM10K_RXQCTL_ENABLE; rxqctl &= ~FM10K_RXQCTL_ENABLE;
fm10k_write_reg(hw, FM10K_RXQCTL(reg_idx), rxqctl);
fm10k_write_flush(hw); fm10k_write_flush(hw);
/* possible poll here to verify ring resources have been cleaned */ /* possible poll here to verify ring resources have been cleaned */