LCOV - code coverage report
Current view: top level - lib/ioat - ioat_internal.h (source / functions) Hit Total Coverage
Test: ut_cov_unit.info Lines: 8 8 100.0 %
Date: 2024-12-15 17:30:36 Functions: 4 4 100.0 %

          Line data    Source code
       1             : /*   SPDX-License-Identifier: BSD-3-Clause
       2             :  *   Copyright (C) 2015 Intel Corporation.
       3             :  *   All rights reserved.
       4             :  */
       5             : 
       6             : #ifndef __IOAT_INTERNAL_H__
       7             : #define __IOAT_INTERNAL_H__
       8             : 
       9             : #include "spdk/stdinc.h"
      10             : 
      11             : #include "spdk/ioat.h"
      12             : #include "spdk/ioat_spec.h"
      13             : #include "spdk/queue.h"
      14             : #include "spdk/mmio.h"
      15             : 
      16             : /* Allocate 1 << 15 (32K) descriptors per channel by default. */
      17             : #define IOAT_DEFAULT_ORDER                      15
      18             : 
      19             : struct ioat_descriptor {
      20             :         uint64_t                phys_addr;
      21             :         spdk_ioat_req_cb        callback_fn;
      22             :         void                    *callback_arg;
      23             : };
      24             : 
      25             : /* One of these per allocated PCI device. */
      26             : struct spdk_ioat_chan {
      27             :         /* Opaque handle to upper layer */
      28             :         struct spdk_pci_device          *device;
      29             :         uint64_t            max_xfer_size;
      30             :         volatile struct spdk_ioat_registers *regs;
      31             : 
      32             :         volatile uint64_t   *comp_update;
      33             : 
      34             :         uint32_t            head;
      35             :         uint32_t            tail;
      36             : 
      37             :         uint32_t            ring_size_order;
      38             :         uint64_t            last_seen;
      39             : 
      40             :         struct ioat_descriptor          *ring;
      41             :         union spdk_ioat_hw_desc         *hw_ring;
      42             :         uint32_t                        dma_capabilities;
      43             : 
      44             :         /* tailq entry for attached_chans */
      45             :         TAILQ_ENTRY(spdk_ioat_chan)     tailq;
      46             : };
      47             : 
      48             : static inline uint32_t
      49           8 : is_ioat_active(uint64_t status)
      50             : {
      51           8 :         return (status & SPDK_IOAT_CHANSTS_STATUS) == SPDK_IOAT_CHANSTS_ACTIVE;
      52             : }
      53             : 
      54             : static inline uint32_t
      55           8 : is_ioat_idle(uint64_t status)
      56             : {
      57           8 :         return (status & SPDK_IOAT_CHANSTS_STATUS) == SPDK_IOAT_CHANSTS_IDLE;
      58             : }
      59             : 
      60             : static inline uint32_t
      61           8 : is_ioat_halted(uint64_t status)
      62             : {
      63           8 :         return (status & SPDK_IOAT_CHANSTS_STATUS) == SPDK_IOAT_CHANSTS_HALTED;
      64             : }
      65             : 
      66             : static inline uint32_t
      67           8 : is_ioat_suspended(uint64_t status)
      68             : {
      69           8 :         return (status & SPDK_IOAT_CHANSTS_STATUS) == SPDK_IOAT_CHANSTS_SUSPENDED;
      70             : }
      71             : 
      72             : #endif /* __IOAT_INTERNAL_H__ */

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