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Commit 90077773 authored by Mitch Williams's avatar Mitch Williams Committed by Jeff Kirsher
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i40e: correctly setup ARQ descriptors 



When cleaning descriptors, we must set up ALL fields, not just the DMA
address. The initial setup does this correctly, but not the cleanup
code, so the firmware would process the ring exactly once and then fail.

Change-ID: I2930b83c76194b3016a8ac0fa693f9a573995640
Signed-off-by: default avatarMitch Williams <mitch.a.williams@intel.com>
Signed-off-by: default avatarJesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: default avatarKavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent 071b8de9

drivers/net/ethernet/intel/i40e/i40e_adminq.c

+5 −0
Original line number Diff line number Diff line
@@ -933,6 +933,11 @@ i40e_status i40e_clean_arq_element(struct i40e_hw *hw, 
	 * size

	 */

	bi = &hw->aq.arq.r.arq_bi[ntc];

	memset((void *)desc, 0, sizeof(struct i40e_aq_desc));



	desc->flags = cpu_to_le16(I40E_AQ_FLAG_BUF);

	if (hw->aq.arq_buf_size > I40E_AQ_LARGE_BUF)

		desc->flags |= cpu_to_le16(I40E_AQ_FLAG_LB);

	desc->datalen = cpu_to_le16((u16)bi->size);

	desc->params.external.addr_high = cpu_to_le32(upper_32_bits(bi->pa));

	desc->params.external.addr_low = cpu_to_le32(lower_32_bits(bi->pa));