From: Greg Bowers Date: Fri, 28 Aug 2015 21:55:52 +0000 (-0400) Subject: i40e: Support FW CEE DCB UP to TC map nibble swap X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=95e5613f75ac93d0547b7d2077030a5fe11af21e;p=linux-beck.git i40e: Support FW CEE DCB UP to TC map nibble swap Changes parsing of AQ command Get CEE DCBX OPER CFG (0x0A07). Change is required because FW creates the oper_prio_tc nibbles reversed from those in the CEE Priority Group sub-TLV. Change-ID: I7d9d8641bb430d30e286fc3fac909866ef8a0de8 Signed-off-by: Greg Bowers Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- diff --git a/drivers/net/ethernet/intel/i40e/i40e_dcb.c b/drivers/net/ethernet/intel/i40e/i40e_dcb.c index fbec7d787f9d..6fa07ef1651d 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_dcb.c +++ b/drivers/net/ethernet/intel/i40e/i40e_dcb.c @@ -681,15 +681,18 @@ static void i40e_cee_to_dcb_config( /* CEE PG data to ETS config */ dcbcfg->etscfg.maxtcs = cee_cfg->oper_num_tc; + /* Note that the FW creates the oper_prio_tc nibbles reversed + * from those in the CEE Priority Group sub-TLV. + */ for (i = 0; i < 4; i++) { - tc = (u8)((cee_cfg->oper_prio_tc[i] & - I40E_CEE_PGID_PRIO_1_MASK) >> - I40E_CEE_PGID_PRIO_1_SHIFT); - dcbcfg->etscfg.prioritytable[i*2] = tc; tc = (u8)((cee_cfg->oper_prio_tc[i] & I40E_CEE_PGID_PRIO_0_MASK) >> I40E_CEE_PGID_PRIO_0_SHIFT); - dcbcfg->etscfg.prioritytable[i*2 + 1] = tc; + dcbcfg->etscfg.prioritytable[i * 2] = tc; + tc = (u8)((cee_cfg->oper_prio_tc[i] & + I40E_CEE_PGID_PRIO_1_MASK) >> + I40E_CEE_PGID_PRIO_1_SHIFT); + dcbcfg->etscfg.prioritytable[i * 2 + 1] = tc; } for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)