xref: /linux/drivers/net/ethernet/intel/fm10k/fm10k_common.h (revision ce4dad2ce231aa5258ddfc98f8a80d958643c014)
186641094SJacob Keller /* Intel(R) Ethernet Switch Host Interface Driver
286641094SJacob Keller  * Copyright(c) 2013 - 2016 Intel Corporation.
304a5aefbSAlexander Duyck  *
404a5aefbSAlexander Duyck  * This program is free software; you can redistribute it and/or modify it
504a5aefbSAlexander Duyck  * under the terms and conditions of the GNU General Public License,
604a5aefbSAlexander Duyck  * version 2, as published by the Free Software Foundation.
704a5aefbSAlexander Duyck  *
804a5aefbSAlexander Duyck  * This program is distributed in the hope it will be useful, but WITHOUT
904a5aefbSAlexander Duyck  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1004a5aefbSAlexander Duyck  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
1104a5aefbSAlexander Duyck  * more details.
1204a5aefbSAlexander Duyck  *
1304a5aefbSAlexander Duyck  * The full GNU General Public License is included in this distribution in
1404a5aefbSAlexander Duyck  * the file called "COPYING".
1504a5aefbSAlexander Duyck  *
1604a5aefbSAlexander Duyck  * Contact Information:
1704a5aefbSAlexander Duyck  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
1804a5aefbSAlexander Duyck  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
1904a5aefbSAlexander Duyck  */
2004a5aefbSAlexander Duyck 
2104a5aefbSAlexander Duyck #ifndef _FM10K_COMMON_H_
2204a5aefbSAlexander Duyck #define _FM10K_COMMON_H_
2304a5aefbSAlexander Duyck 
2404a5aefbSAlexander Duyck #include "fm10k_type.h"
2504a5aefbSAlexander Duyck 
2604a5aefbSAlexander Duyck #define FM10K_REMOVED(hw_addr) unlikely(!(hw_addr))
2704a5aefbSAlexander Duyck 
2804a5aefbSAlexander Duyck /* PCI configuration read */
2904a5aefbSAlexander Duyck u16 fm10k_read_pci_cfg_word(struct fm10k_hw *hw, u32 reg);
3004a5aefbSAlexander Duyck 
3104a5aefbSAlexander Duyck /* read operations, indexed using DWORDS */
3204a5aefbSAlexander Duyck u32 fm10k_read_reg(struct fm10k_hw *hw, int reg);
3304a5aefbSAlexander Duyck 
3404a5aefbSAlexander Duyck /* write operations, indexed using DWORDS */
3504a5aefbSAlexander Duyck #define fm10k_write_reg(hw, reg, val) \
3604a5aefbSAlexander Duyck do { \
37*ce4dad2cSJacob Keller 	u32 __iomem *hw_addr = READ_ONCE((hw)->hw_addr); \
3804a5aefbSAlexander Duyck 	if (!FM10K_REMOVED(hw_addr)) \
3904a5aefbSAlexander Duyck 		writel((val), &hw_addr[(reg)]); \
4004a5aefbSAlexander Duyck } while (0)
4104a5aefbSAlexander Duyck 
425f226ddbSAlexander Duyck /* Switch register write operations, index using DWORDS */
435f226ddbSAlexander Duyck #define fm10k_write_sw_reg(hw, reg, val) \
445f226ddbSAlexander Duyck do { \
45*ce4dad2cSJacob Keller 	u32 __iomem *sw_addr = READ_ONCE((hw)->sw_addr); \
465f226ddbSAlexander Duyck 	if (!FM10K_REMOVED(sw_addr)) \
475f226ddbSAlexander Duyck 		writel((val), &sw_addr[(reg)]); \
485f226ddbSAlexander Duyck } while (0)
495f226ddbSAlexander Duyck 
5004a5aefbSAlexander Duyck /* read ctrl register which has no clear on read fields as PCIe flush */
5104a5aefbSAlexander Duyck #define fm10k_write_flush(hw) fm10k_read_reg((hw), FM10K_CTRL)
52b6fec18fSAlexander Duyck s32 fm10k_get_bus_info_generic(struct fm10k_hw *hw);
53b6fec18fSAlexander Duyck s32 fm10k_get_invariants_generic(struct fm10k_hw *hw);
54b6fec18fSAlexander Duyck s32 fm10k_disable_queues_generic(struct fm10k_hw *hw, u16 q_cnt);
55b6fec18fSAlexander Duyck s32 fm10k_start_hw_generic(struct fm10k_hw *hw);
56b6fec18fSAlexander Duyck s32 fm10k_stop_hw_generic(struct fm10k_hw *hw);
57b6fec18fSAlexander Duyck u32 fm10k_read_hw_stats_32b(struct fm10k_hw *hw, u32 addr,
58b6fec18fSAlexander Duyck 			    struct fm10k_hw_stat *stat);
59b6fec18fSAlexander Duyck #define fm10k_update_hw_base_32b(stat, delta) ((stat)->base_l += (delta))
60b6fec18fSAlexander Duyck void fm10k_update_hw_stats_q(struct fm10k_hw *hw, struct fm10k_hw_stats_q *q,
61b6fec18fSAlexander Duyck 			     u32 idx, u32 count);
62b6fec18fSAlexander Duyck #define fm10k_unbind_hw_stats_32b(s) ((s)->base_h = 0)
63b6fec18fSAlexander Duyck void fm10k_unbind_hw_stats_q(struct fm10k_hw_stats_q *q, u32 idx, u32 count);
64b6fec18fSAlexander Duyck s32 fm10k_get_host_state_generic(struct fm10k_hw *hw, bool *host_ready);
6504a5aefbSAlexander Duyck #endif /* _FM10K_COMMON_H_ */
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