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Commit c482e6c0 authored by Yaniv Rosner's avatar Yaniv Rosner Committed by David S. Miller
Browse files

bnx2x: Fix ETS bandwidth 



ETS bandwidth of 0% is not allowed by driver, so provide alternative HW configuration for this case.

Signed-off-by: default avatarYaniv Rosner <yanivr@broadcom.com>
Signed-off-by: default avatarEilon Greenstein <eilong@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 31dda0ae

drivers/net/bnx2x/bnx2x_link.c

+6 −12
Original line number Diff line number Diff line
@@ -778,9 +778,9 @@ static int bnx2x_ets_e3b0_set_cos_bw(struct bnx2x *bp, 
{

	u32 nig_reg_adress_crd_weight = 0;

	u32 pbf_reg_adress_crd_weight = 0;

	/* Calculate and set BW for this COS*/

	const u32 cos_bw_nig = (bw * min_w_val_nig) / total_bw;

	const u32 cos_bw_pbf = (bw * min_w_val_pbf) / total_bw;

	/* Calculate and set BW for this COS - use 1 instead of 0 for BW */

	const u32 cos_bw_nig = ((bw ? bw : 1) * min_w_val_nig) / total_bw;

	const u32 cos_bw_pbf = ((bw ? bw : 1) * min_w_val_pbf) / total_bw;



	switch (cos_entry) {

	case 0:
@@ -852,18 +852,12 @@ static int bnx2x_ets_e3b0_get_total_bw( 
	/* Calculate total BW requested */

	for (cos_idx = 0; cos_idx < ets_params->num_of_cos; cos_idx++) {

		if (bnx2x_cos_state_bw == ets_params->cos[cos_idx].state) {



			if (0 == ets_params->cos[cos_idx].params.bw_params.bw) {

				DP(NETIF_MSG_LINK, "bnx2x_ets_E3B0_config BW"

						   "was set to 0\n");

			return -EINVAL;

		}

			*total_bw +=

				ets_params->cos[cos_idx].params.bw_params.bw;

		}

	}



	/*Check taotl BW is valid */

	/* Check total BW is valid */

	if ((100 != *total_bw) || (0 == *total_bw)) {

		if (0 == *total_bw) {

			DP(NETIF_MSG_LINK, "bnx2x_ets_E3B0_config toatl BW"