From cd7dc6c8128bc708ac40d0c3d2af84e16a9e9c56 Mon Sep 17 00:00:00 2001 From: Richard Houldsworth Date: Mon, 24 Sep 2018 14:50:24 +0100 Subject: [PATCH] net/sfc/base: add X2 port modes to bandwidth calculator 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. Signed-off-by: Richard Houldsworth Signed-off-by: Andrew Rybchenko --- drivers/net/sfc/base/ef10_nic.c | 43 ++++++++++++++++++++++++++------- 1 file changed, 34 insertions(+), 9 deletions(-) diff --git a/drivers/net/sfc/base/ef10_nic.c b/drivers/net/sfc/base/ef10_nic.c index c3634e351d..1eea7c673f 100644 --- a/drivers/net/sfc/base/ef10_nic.c +++ b/drivers/net/sfc/base/ef10_nic.c @@ -131,34 +131,59 @@ 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; -- 2.20.1