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| 1 | +// SPDX-License-Identifier: GPL-2.0-or-later |
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| 1 | 2 | /* |
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| 2 | 3 | * drivers/ata/sata_dwc_460ex.c |
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| 3 | 4 | * |
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| .. | .. |
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| 11 | 12 | * Based on versions provided by AMCC and Synopsys which are: |
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| 12 | 13 | * Copyright 2006 Applied Micro Circuits Corporation |
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| 13 | 14 | * COPYRIGHT (C) 2005 SYNOPSYS, INC. ALL RIGHTS RESERVED |
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| 14 | | - * |
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| 15 | | - * This program is free software; you can redistribute it and/or modify it |
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| 16 | | - * under the terms of the GNU General Public License as published by the |
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| 17 | | - * Free Software Foundation; either version 2 of the License, or (at your |
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| 18 | | - * option) any later version. |
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| 19 | 15 | */ |
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| 20 | 16 | |
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| 21 | 17 | #ifdef CONFIG_SATA_DWC_DEBUG |
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| .. | .. |
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| 149 | 145 | #endif |
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| 150 | 146 | }; |
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| 151 | 147 | |
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| 152 | | -#define SATA_DWC_QCMD_MAX 32 |
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| 148 | +/* |
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| 149 | + * Allow one extra special slot for commands and DMA management |
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| 150 | + * to account for libata internal commands. |
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| 151 | + */ |
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| 152 | +#define SATA_DWC_QCMD_MAX (ATA_MAX_QUEUE + 1) |
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| 153 | 153 | |
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| 154 | 154 | struct sata_dwc_device_port { |
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| 155 | 155 | struct sata_dwc_device *hsdev; |
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