diff options
Diffstat (limited to 'drivers/net/ethernet/intel/iavf/iavf_adminq.h')
| -rw-r--r-- | drivers/net/ethernet/intel/iavf/iavf_adminq.h | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/iavf/iavf_adminq.h b/drivers/net/ethernet/intel/iavf/iavf_adminq.h new file mode 100644 index 000000000000..baf2fe26f302 --- /dev/null +++ b/drivers/net/ethernet/intel/iavf/iavf_adminq.h @@ -0,0 +1,135 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright(c) 2013 - 2018 Intel Corporation. */ + +#ifndef _IAVF_ADMINQ_H_ +#define _IAVF_ADMINQ_H_ + +#include "iavf_osdep.h" +#include "iavf_status.h" +#include "iavf_adminq_cmd.h" + +#define IAVF_ADMINQ_DESC(R, i) \ + (&(((struct iavf_aq_desc *)((R).desc_buf.va))[i])) + +#define IAVF_ADMINQ_DESC_ALIGNMENT 4096 + +struct iavf_adminq_ring { + struct iavf_virt_mem dma_head; /* space for dma structures */ + struct iavf_dma_mem desc_buf; /* descriptor ring memory */ + struct iavf_virt_mem cmd_buf; /* command buffer memory */ + + union { + struct iavf_dma_mem *asq_bi; + struct iavf_dma_mem *arq_bi; + } r; + + u16 count; /* Number of descriptors */ + u16 rx_buf_len; /* Admin Receive Queue buffer length */ + + /* used for interrupt processing */ + u16 next_to_use; + u16 next_to_clean; + + /* used for queue tracking */ + u32 head; + u32 tail; + u32 len; + u32 bah; + u32 bal; +}; + +/* ASQ transaction details */ +struct iavf_asq_cmd_details { + void *callback; /* cast from type IAVF_ADMINQ_CALLBACK */ + u64 cookie; + u16 flags_ena; + u16 flags_dis; + bool async; + bool postpone; + struct iavf_aq_desc *wb_desc; +}; + +#define IAVF_ADMINQ_DETAILS(R, i) \ + (&(((struct iavf_asq_cmd_details *)((R).cmd_buf.va))[i])) + +/* ARQ event information */ +struct iavf_arq_event_info { + struct iavf_aq_desc desc; + u16 msg_len; + u16 buf_len; + u8 *msg_buf; +}; + +/* Admin Queue information */ +struct iavf_adminq_info { + struct iavf_adminq_ring arq; /* receive queue */ + struct iavf_adminq_ring asq; /* send queue */ + u32 asq_cmd_timeout; /* send queue cmd write back timeout*/ + u16 num_arq_entries; /* receive queue depth */ + u16 num_asq_entries; /* send queue depth */ + u16 arq_buf_size; /* receive queue buffer size */ + u16 asq_buf_size; /* send queue buffer size */ + u16 fw_maj_ver; /* firmware major version */ + u16 fw_min_ver; /* firmware minor version */ + u32 fw_build; /* firmware build number */ + u16 api_maj_ver; /* api major version */ + u16 api_min_ver; /* api minor version */ + + struct mutex asq_mutex; /* Send queue lock */ + struct mutex arq_mutex; /* Receive queue lock */ + + /* last status values on send and receive queues */ + enum iavf_admin_queue_err asq_last_status; + enum iavf_admin_queue_err arq_last_status; +}; + +/** + * iavf_aq_rc_to_posix - convert errors to user-land codes + * aq_ret: AdminQ handler error code can override aq_rc + * aq_rc: AdminQ firmware error code to convert + **/ +static inline int iavf_aq_rc_to_posix(int aq_ret, int aq_rc) +{ + int aq_to_posix[] = { + 0, /* IAVF_AQ_RC_OK */ + -EPERM, /* IAVF_AQ_RC_EPERM */ + -ENOENT, /* IAVF_AQ_RC_ENOENT */ + -ESRCH, /* IAVF_AQ_RC_ESRCH */ + -EINTR, /* IAVF_AQ_RC_EINTR */ + -EIO, /* IAVF_AQ_RC_EIO */ + -ENXIO, /* IAVF_AQ_RC_ENXIO */ + -E2BIG, /* IAVF_AQ_RC_E2BIG */ + -EAGAIN, /* IAVF_AQ_RC_EAGAIN */ + -ENOMEM, /* IAVF_AQ_RC_ENOMEM */ + -EACCES, /* IAVF_AQ_RC_EACCES */ + -EFAULT, /* IAVF_AQ_RC_EFAULT */ + -EBUSY, /* IAVF_AQ_RC_EBUSY */ + -EEXIST, /* IAVF_AQ_RC_EEXIST */ + -EINVAL, /* IAVF_AQ_RC_EINVAL */ + -ENOTTY, /* IAVF_AQ_RC_ENOTTY */ + -ENOSPC, /* IAVF_AQ_RC_ENOSPC */ + -ENOSYS, /* IAVF_AQ_RC_ENOSYS */ + -ERANGE, /* IAVF_AQ_RC_ERANGE */ + -EPIPE, /* IAVF_AQ_RC_EFLUSHED */ + -ESPIPE, /* IAVF_AQ_RC_BAD_ADDR */ + -EROFS, /* IAVF_AQ_RC_EMODE */ + -EFBIG, /* IAVF_AQ_RC_EFBIG */ + }; + + /* aq_rc is invalid if AQ timed out */ + if (aq_ret == IAVF_ERR_ADMIN_QUEUE_TIMEOUT) + return -EAGAIN; + + if (!((u32)aq_rc < (sizeof(aq_to_posix) / sizeof((aq_to_posix)[0])))) + return -ERANGE; + + return aq_to_posix[aq_rc]; +} + +/* general information */ +#define IAVF_AQ_LARGE_BUF 512 +#define IAVF_ASQ_CMD_TIMEOUT 250000 /* usecs */ + +void iavf_fill_default_direct_cmd_desc(struct iavf_aq_desc *desc, u16 opcode); + +#endif /* _IAVF_ADMINQ_H_ */ |
