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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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78 lines
1.6 KiB
C
78 lines
1.6 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/* Marvell OcteonTx2 RVU Ethernet driver
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*
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* Copyright (C) 2020 Marvell International Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef OTX2_COMMON_H
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#define OTX2_COMMON_H
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#include <linux/pci.h>
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#include "otx2_reg.h"
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/* PCI device IDs */
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#define PCI_DEVID_OCTEONTX2_RVU_PF 0xA063
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/* PCI BAR nos */
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#define PCI_CFG_REG_BAR_NUM 2
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struct otx2_hw {
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struct pci_dev *pdev;
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u16 rx_queues;
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u16 tx_queues;
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u16 max_queues;
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};
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struct otx2_nic {
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void __iomem *reg_base;
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struct net_device *netdev;
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struct otx2_hw hw;
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struct pci_dev *pdev;
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struct device *dev;
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};
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/* Register read/write APIs */
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static inline void __iomem *otx2_get_regaddr(struct otx2_nic *nic, u64 offset)
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{
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u64 blkaddr;
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switch ((offset >> RVU_FUNC_BLKADDR_SHIFT) & RVU_FUNC_BLKADDR_MASK) {
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case BLKTYPE_NIX:
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blkaddr = BLKADDR_NIX0;
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break;
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case BLKTYPE_NPA:
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blkaddr = BLKADDR_NPA;
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break;
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default:
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blkaddr = BLKADDR_RVUM;
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break;
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};
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offset &= ~(RVU_FUNC_BLKADDR_MASK << RVU_FUNC_BLKADDR_SHIFT);
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offset |= (blkaddr << RVU_FUNC_BLKADDR_SHIFT);
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return nic->reg_base + offset;
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}
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static inline void otx2_write64(struct otx2_nic *nic, u64 offset, u64 val)
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{
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void __iomem *addr = otx2_get_regaddr(nic, offset);
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writeq(val, addr);
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}
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static inline u64 otx2_read64(struct otx2_nic *nic, u64 offset)
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{
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void __iomem *addr = otx2_get_regaddr(nic, offset);
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return readq(addr);
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}
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#endif /* OTX2_COMMON_H */
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