-/*******************************************************************************
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-Copyright (c) 2001-2014, Intel Corporation
-All rights reserved.
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-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
- 1. Redistributions of source code must retain the above copyright notice,
- this list of conditions and the following disclaimer.
-
- 2. Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
-
- 3. Neither the name of the Intel Corporation nor the names of its
- contributors may be used to endorse or promote products derived from
- this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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-LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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-***************************************************************************/
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2001-2020 Intel Corporation
+ */
#include "ixgbe_type.h"
* are the smallest unit programmable into the underlying
* hardware. The IEEE 802.1Qaz specification do not use bandwidth
* groups so this is much simplified from the CEE case.
+ * @bw: bandwidth index by traffic class
+ * @refill: refill credits index by traffic class
+ * @max: max credits by traffic class
+ * @max_frame_size: maximum frame size
*/
s32 ixgbe_dcb_calculate_tc_credits(u8 *bw, u16 *refill, u16 *max,
int max_frame_size)
/**
* ixgbe_dcb_calculate_tc_credits_cee - Calculates traffic class credits
- * @ixgbe_dcb_config: Struct containing DCB settings.
- * @direction: Configuring either Tx or Rx.
+ * @hw: pointer to hardware structure
+ * @dcb_config: Struct containing DCB settings
+ * @max_frame_size: Maximum frame size
+ * @direction: Configuring either Tx or Rx
*
* This function calculates the credits allocated to each traffic class.
* It should be called only after the rules are checked by
/* Calculate credit refill ratio using multiplier */
credit_refill = min(link_percentage * min_multiplier,
(u32)IXGBE_DCB_MAX_CREDIT_REFILL);
+
+ /* Refill at least minimum credit */
+ if (credit_refill < min_credit)
+ credit_refill = min_credit;
+
p->data_credits_refill = (u16)credit_refill;
/* Calculate maximum credit for the TC */
* of a TC is too small, the maximum credit may not be
* enough to send out a jumbo frame in data plane arbitration.
*/
- if (credit_max && (credit_max < min_credit))
+ if (credit_max < min_credit)
credit_max = min_credit;
if (direction == IXGBE_DCB_TX_CONFIG) {
}
err_config:
- DEBUGOUT2("DCB error code %d while checking %s settings.\n",
- ret_val, (i == IXGBE_DCB_TX_CONFIG) ? "Tx" : "Rx");
return ret_val;
}
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
+ case ixgbe_mac_X550EM_a:
ret = ixgbe_dcb_get_tc_stats_82599(hw, stats, tc_count);
break;
default:
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
+ case ixgbe_mac_X550EM_a:
ret = ixgbe_dcb_get_pfc_stats_82599(hw, stats, tc_count);
break;
default:
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
+ case ixgbe_mac_X550EM_a:
ret = ixgbe_dcb_config_rx_arbiter_82599(hw, refill, max, bwgid,
tsa, map);
break;
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
+ case ixgbe_mac_X550EM_a:
ret = ixgbe_dcb_config_tx_desc_arbiter_82599(hw, refill, max,
bwgid, tsa);
break;
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
+ case ixgbe_mac_X550EM_a:
ret = ixgbe_dcb_config_tx_data_arbiter_82599(hw, refill, max,
bwgid, tsa,
map);
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
+ case ixgbe_mac_X550EM_a:
ret = ixgbe_dcb_config_pfc_82599(hw, pfc_en, map);
break;
default:
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
+ case ixgbe_mac_X550EM_a:
ret = ixgbe_dcb_config_tc_stats_82599(hw, NULL);
break;
default:
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
+ case ixgbe_mac_X550EM_a:
ixgbe_dcb_config_82599(hw, dcb_config);
ret = ixgbe_dcb_hw_config_82599(hw, dcb_config->link_speed,
refill, max, bwgid,
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
+ case ixgbe_mac_X550EM_a:
ret = ixgbe_dcb_config_pfc_82599(hw, pfc_en, map);
break;
default:
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
+ case ixgbe_mac_X550EM_a:
ixgbe_dcb_config_rx_arbiter_82599(hw, refill, max, bwg_id,
tsa, map);
ixgbe_dcb_config_tx_desc_arbiter_82599(hw, refill, max, bwg_id,
git.droids-corp.org / dpdk.git / blobdiff