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sfxge(4): add X2 port modes to bandwidth calculator

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Add cases for the new port modes supported by X2 NICs.
Lane bandwidth is calculated for pre-X2 cards so is an
underestimate for X2 in 25G/100G modes.

Submitted by:   Richard Houldsworth <rhouldsworth at solarflare.com>
Sponsored by:   Solarflare Communications, Inc.
Differential Revision:  https://reviews.freebsd.org/D18277
This commit is contained in:
arybchik 2018-11-30 07:09:00 +00:00
parent 4e981405e8
commit 6268dad9a4
1 changed files with 34 additions and 9 deletions
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43
sys/dev/sfxge/common/ef10_nic.c
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@ -158,34 +158,59 @@ ef10_nic_get_port_mode_bandwidth(
__in uint32_t port_mode,
__out uint32_t *bandwidth_mbpsp)
{
uint32_t single_lane = 10000;
uint32_t dual_lane = 50000;
uint32_t quad_lane = 40000;
uint32_t bandwidth;
efx_rc_t rc;
switch (port_mode) {
case TLV_PORT_MODE_1x1_NA: /* mode 0 */
bandwidth = 10000;
bandwidth = single_lane;
break;
case TLV_PORT_MODE_1x2_NA: /* mode 10 */
case TLV_PORT_MODE_NA_1x2: /* mode 11 */
bandwidth = dual_lane;
break;
case TLV_PORT_MODE_1x1_1x1: /* mode 2 */
bandwidth = 10000 * 2;
bandwidth = single_lane + single_lane;
break;
case TLV_PORT_MODE_4x1_NA: /* mode 4 */
case TLV_PORT_MODE_2x1_2x1: /* mode 5 */
case TLV_PORT_MODE_NA_4x1: /* mode 8 */
bandwidth = 10000 * 4;
bandwidth = 4 * single_lane;
break;
case TLV_PORT_MODE_2x1_2x1: /* mode 5 */
bandwidth = (2 * single_lane) + (2 * single_lane);
break;
case TLV_PORT_MODE_1x2_1x2: /* mode 12 */
bandwidth = dual_lane + dual_lane;
break;
case TLV_PORT_MODE_1x2_2x1: /* mode 17 */
case TLV_PORT_MODE_2x1_1x2: /* mode 18 */
bandwidth = dual_lane + (2 * single_lane);
break;
/* Legacy Medford-only mode. Do not use (see bug63270) */
case TLV_PORT_MODE_10G_10G_10G_10G_Q1_Q2: /* mode 9 */
bandwidth = 10000 * 4;
bandwidth = 4 * single_lane;
break;
case TLV_PORT_MODE_1x4_NA: /* mode 1 */
bandwidth = 40000;
case TLV_PORT_MODE_NA_1x4: /* mode 22 */
bandwidth = quad_lane;
break;
case TLV_PORT_MODE_1x4_1x4: /* mode 3 */
bandwidth = 40000 * 2;
case TLV_PORT_MODE_2x2_NA: /* mode 13 */
case TLV_PORT_MODE_NA_2x2: /* mode 14 */
bandwidth = 2 * dual_lane;
break;
case TLV_PORT_MODE_1x4_2x1: /* mode 6 */
case TLV_PORT_MODE_2x1_1x4: /* mode 7 */
bandwidth = 40000 + (10000 * 2);
bandwidth = quad_lane + (2 * single_lane);
break;
case TLV_PORT_MODE_1x4_1x2: /* mode 15 */
case TLV_PORT_MODE_1x2_1x4: /* mode 16 */
bandwidth = quad_lane + dual_lane;
break;
case TLV_PORT_MODE_1x4_1x4: /* mode 3 */
bandwidth = quad_lane + quad_lane;
break;
default:
rc = EINVAL;