@@ -10,9 +10,7 @@
struct nfp_cpp_mutex;
-/*
- * NFP CPP handle
- */
+/* NFP CPP handle */
struct nfp_cpp {
uint32_t model;
uint32_t interface;
@@ -37,9 +35,7 @@ struct nfp_cpp {
int driver_lock_needed;
};
-/*
- * NFP CPP device area handle
- */
+/* NFP CPP device area handle */
struct nfp_cpp_area {
struct nfp_cpp *cpp;
char *name;
@@ -127,35 +123,45 @@ struct nfp_cpp_operations {
#define NFP_CPP_TARGET_ID_MASK 0x1f
-/*
+/**
* Pack target, token, and action into a CPP ID.
*
* Create a 32-bit CPP identifier representing the access to be made.
* These identifiers are used as parameters to other NFP CPP functions.
* Some CPP devices may allow wildcard identifiers to be specified.
*
- * @target NFP CPP target id
- * @action NFP CPP action id
- * @token NFP CPP token id
+ * @param target
+ * NFP CPP target id
+ * @param action
+ * NFP CPP action id
+ * @param token
+ * NFP CPP token id
*
- * @return NFP CPP ID
+ * @return
+ * NFP CPP ID
*/
#define NFP_CPP_ID(target, action, token) \
((((target) & 0x7f) << 24) | (((token) & 0xff) << 16) | \
(((action) & 0xff) << 8))
-/*
+/**
* Pack target, token, action, and island into a CPP ID.
- * @target NFP CPP target id
- * @action NFP CPP action id
- * @token NFP CPP token id
- * @island NFP CPP island id
*
* Create a 32-bit CPP identifier representing the access to be made.
* These identifiers are used as parameters to other NFP CPP functions.
* Some CPP devices may allow wildcard identifiers to be specified.
*
- * @return NFP CPP ID
+ * @param target
+ * NFP CPP target id
+ * @param action
+ * NFP CPP action id
+ * @param token
+ * NFP CPP token id
+ * @param island
+ * NFP CPP island id
+ *
+ * @return
+ * NFP CPP ID
*/
#define NFP_CPP_ISLAND_ID(target, action, token, island) \
((((target) & 0x7f) << 24) | (((token) & 0xff) << 16) | \
@@ -163,9 +169,12 @@ struct nfp_cpp_operations {
/**
* Return the NFP CPP target of a NFP CPP ID
- * @id NFP CPP ID
*
- * @return NFP CPP target
+ * @param id
+ * NFP CPP ID
+ *
+ * @return
+ * NFP CPP target
*/
static inline uint8_t
NFP_CPP_ID_TARGET_of(uint32_t id)
@@ -173,11 +182,14 @@ NFP_CPP_ID_TARGET_of(uint32_t id)
return (id >> 24) & NFP_CPP_TARGET_ID_MASK;
}
-/*
+/**
* Return the NFP CPP token of a NFP CPP ID
- * @id NFP CPP ID
*
- * @return NFP CPP token
+ * @param id
+ * NFP CPP ID
+ *
+ * @return
+ * NFP CPP token
*/
static inline uint8_t
NFP_CPP_ID_TOKEN_of(uint32_t id)
@@ -185,11 +197,14 @@ NFP_CPP_ID_TOKEN_of(uint32_t id)
return (id >> 16) & 0xff;
}
-/*
+/**
* Return the NFP CPP action of a NFP CPP ID
- * @id NFP CPP ID
*
- * @return NFP CPP action
+ * @param id
+ * NFP CPP ID
+ *
+ * @return
+ * NFP CPP action
*/
static inline uint8_t
NFP_CPP_ID_ACTION_of(uint32_t id)
@@ -197,11 +212,14 @@ NFP_CPP_ID_ACTION_of(uint32_t id)
return (id >> 8) & 0xff;
}
-/*
+/**
* Return the NFP CPP island of a NFP CPP ID
- * @id NFP CPP ID
*
- * @return NFP CPP island
+ * @param id
+ * NFP CPP ID
+ *
+ * @return
+ * NFP CPP island
*/
static inline uint8_t
NFP_CPP_ID_ISLAND_of(uint32_t id)
@@ -215,109 +233,57 @@ NFP_CPP_ID_ISLAND_of(uint32_t id)
*/
const struct nfp_cpp_operations *nfp_cpp_transport_operations(void);
-/*
- * Set the model id
- *
- * @param cpp NFP CPP operations structure
- * @param model Model ID
- */
void nfp_cpp_model_set(struct nfp_cpp *cpp, uint32_t model);
-/*
- * Set the private instance owned data of a nfp_cpp struct
- *
- * @param cpp NFP CPP operations structure
- * @param interface Interface ID
- */
void nfp_cpp_interface_set(struct nfp_cpp *cpp, uint32_t interface);
-/*
- * Set the private instance owned data of a nfp_cpp struct
- *
- * @param cpp NFP CPP operations structure
- * @param serial NFP serial byte array
- * @param len Length of the serial byte array
- */
int nfp_cpp_serial_set(struct nfp_cpp *cpp, const uint8_t *serial,
size_t serial_len);
-/*
- * Set the private data of the nfp_cpp instance
- *
- * @param cpp NFP CPP operations structure
- * @return Opaque device pointer
- */
void nfp_cpp_priv_set(struct nfp_cpp *cpp, void *priv);
-/*
- * Return the private data of the nfp_cpp instance
- *
- * @param cpp NFP CPP operations structure
- * @return Opaque device pointer
- */
void *nfp_cpp_priv(struct nfp_cpp *cpp);
-/*
- * Get the privately allocated portion of a NFP CPP area handle
- *
- * @param cpp_area NFP CPP area handle
- * @return Pointer to the private area, or NULL on failure
- */
void *nfp_cpp_area_priv(struct nfp_cpp_area *cpp_area);
uint32_t __nfp_cpp_model_autodetect(struct nfp_cpp *cpp, uint32_t *model);
-/*
- * NFP CPP core interface for CPP clients.
- */
-
-/*
- * Open a NFP CPP handle to a CPP device
- *
- * @param[in] id 0-based ID for the CPP interface to use
- *
- * @return NFP CPP handle, or NULL on failure.
- */
+/* NFP CPP core interface for CPP clients */
struct nfp_cpp *nfp_cpp_from_device_name(struct rte_pci_device *dev,
int driver_lock_needed);
-/*
- * Free a NFP CPP handle
- *
- * @param[in] cpp NFP CPP handle
- */
void nfp_cpp_free(struct nfp_cpp *cpp);
#define NFP_CPP_MODEL_INVALID 0xffffffff
-/*
- * NFP_CPP_MODEL_CHIP_of - retrieve the chip ID from the model ID
+/**
+ * Retrieve the chip ID from the model ID
*
* The chip ID is a 16-bit BCD+A-F encoding for the chip type.
*
- * @param[in] model NFP CPP model id
- * @return NFP CPP chip id
+ * @param model
+ * NFP CPP model id
+ *
+ * @return
+ * NFP CPP chip id
*/
#define NFP_CPP_MODEL_CHIP_of(model) (((model) >> 16) & 0xffff)
-/*
- * NFP_CPP_MODEL_IS_6000 - Check for the NFP6000 family of devices
+/**
+ * Check for the NFP6000 family of devices
*
* NOTE: The NFP4000 series is considered as a NFP6000 series variant.
*
- * @param[in] model NFP CPP model id
- * @return true if model is in the NFP6000 family, false otherwise.
+ * @param model
+ * NFP CPP model id
+ *
+ * @return
+ * true if model is in the NFP6000 family, false otherwise.
*/
#define NFP_CPP_MODEL_IS_6000(model) \
((NFP_CPP_MODEL_CHIP_of(model) >= 0x3800) && \
(NFP_CPP_MODEL_CHIP_of(model) < 0x7000))
-/*
- * nfp_cpp_model - Retrieve the Model ID of the NFP
- *
- * @param[in] cpp NFP CPP handle
- * @return NFP CPP Model ID
- */
uint32_t nfp_cpp_model(struct nfp_cpp *cpp);
/*
@@ -330,7 +296,7 @@ uint32_t nfp_cpp_model(struct nfp_cpp *cpp);
#define NFP_CPP_INTERFACE_TYPE_RPC 0x3
#define NFP_CPP_INTERFACE_TYPE_ILA 0x4
-/*
+/**
* Construct a 16-bit NFP Interface ID
*
* Interface IDs consists of 4 bits of interface type, 4 bits of unit
@@ -340,422 +306,138 @@ uint32_t nfp_cpp_model(struct nfp_cpp *cpp);
* which use the MU Atomic CompareAndWrite operation - hence the limit to 16
* bits to be able to use the NFP Interface ID as a lock owner.
*
- * @param[in] type NFP Interface Type
- * @param[in] unit Unit identifier for the interface type
- * @param[in] channel Channel identifier for the interface unit
- * @return Interface ID
+ * @param type
+ * NFP Interface Type
+ * @param unit
+ * Unit identifier for the interface type
+ * @param channel
+ * Channel identifier for the interface unit
+ *
+ * @return
+ * Interface ID
*/
#define NFP_CPP_INTERFACE(type, unit, channel) \
((((type) & 0xf) << 12) | \
(((unit) & 0xf) << 8) | \
(((channel) & 0xff) << 0))
-/*
+/**
* Get the interface type of a NFP Interface ID
- * @param[in] interface NFP Interface ID
- * @return NFP Interface ID's type
+ *
+ * @param interface
+ * NFP Interface ID
+ *
+ * @return
+ * NFP Interface ID's type
*/
#define NFP_CPP_INTERFACE_TYPE_of(interface) (((interface) >> 12) & 0xf)
-/*
+/**
* Get the interface unit of a NFP Interface ID
- * @param[in] interface NFP Interface ID
- * @return NFP Interface ID's unit
+ *
+ * @param interface
+ * NFP Interface ID
+ *
+ * @return
+ * NFP Interface ID's unit
*/
#define NFP_CPP_INTERFACE_UNIT_of(interface) (((interface) >> 8) & 0xf)
-/*
+/**
* Get the interface channel of a NFP Interface ID
- * @param[in] interface NFP Interface ID
- * @return NFP Interface ID's channel
+ *
+ * @param interface
+ * NFP Interface ID
+ *
+ * @return
+ * NFP Interface ID's channel
*/
#define NFP_CPP_INTERFACE_CHANNEL_of(interface) (((interface) >> 0) & 0xff)
-/*
- * Retrieve the Interface ID of the NFP
- * @param[in] cpp NFP CPP handle
- * @return NFP CPP Interface ID
- */
+
uint16_t nfp_cpp_interface(struct nfp_cpp *cpp);
-/*
- * Retrieve the NFP Serial Number (unique per NFP)
- * @param[in] cpp NFP CPP handle
- * @param[out] serial Pointer to reference the serial number array
- *
- * @return size of the NFP6000 serial number, in bytes
- */
int nfp_cpp_serial(struct nfp_cpp *cpp, const uint8_t **serial);
-/*
- * Allocate a NFP CPP area handle, as an offset into a CPP ID
- * @param[in] cpp NFP CPP handle
- * @param[in] cpp_id NFP CPP ID
- * @param[in] address Offset into the NFP CPP ID address space
- * @param[in] size Size of the area to reserve
- *
- * @return NFP CPP handle, or NULL on failure.
- */
struct nfp_cpp_area *nfp_cpp_area_alloc(struct nfp_cpp *cpp, uint32_t cpp_id,
uint64_t address, size_t size);
-/*
- * Allocate a NFP CPP area handle, as an offset into a CPP ID, by a named owner
- * @param[in] cpp NFP CPP handle
- * @param[in] cpp_id NFP CPP ID
- * @param[in] name Name of owner of the area
- * @param[in] address Offset into the NFP CPP ID address space
- * @param[in] size Size of the area to reserve
- *
- * @return NFP CPP handle, or NULL on failure.
- */
struct nfp_cpp_area *nfp_cpp_area_alloc_with_name(struct nfp_cpp *cpp,
uint32_t cpp_id, const char *name, uint64_t address,
uint32_t size);
-/*
- * Free an allocated NFP CPP area handle
- * @param[in] area NFP CPP area handle
- */
void nfp_cpp_area_free(struct nfp_cpp_area *area);
-/*
- * Acquire the resources needed to access the NFP CPP area handle
- *
- * @param[in] area NFP CPP area handle
- *
- * @return 0 on success, -1 on failure.
- */
int nfp_cpp_area_acquire(struct nfp_cpp_area *area);
-/*
- * Release the resources needed to access the NFP CPP area handle
- *
- * @param[in] area NFP CPP area handle
- */
void nfp_cpp_area_release(struct nfp_cpp_area *area);
-/*
- * Allocate, then acquire the resources needed to access the NFP CPP area handle
- * @param[in] cpp NFP CPP handle
- * @param[in] cpp_id NFP CPP ID
- * @param[in] address Offset into the NFP CPP ID address space
- * @param[in] size Size of the area to reserve
- *
- * @return NFP CPP handle, or NULL on failure.
- */
struct nfp_cpp_area *nfp_cpp_area_alloc_acquire(struct nfp_cpp *cpp,
uint32_t cpp_id, uint64_t address, size_t size);
-/*
- * Release the resources, then free the NFP CPP area handle
- * @param[in] area NFP CPP area handle
- */
void nfp_cpp_area_release_free(struct nfp_cpp_area *area);
uint8_t *nfp_cpp_map_area(struct nfp_cpp *cpp, uint32_t cpp_id,
uint64_t addr, uint32_t size, struct nfp_cpp_area **area);
-/*
- * Read from a NFP CPP area handle into a buffer. The area must be acquired with
- * 'nfp_cpp_area_acquire()' before calling this operation.
- *
- * @param[in] area NFP CPP area handle
- * @param[in] offset Offset into the area
- * @param[in] buffer Location of buffer to receive the data
- * @param[in] length Length of the data to read
- *
- * @return bytes read on success, negative value on failure.
- *
- */
int nfp_cpp_area_read(struct nfp_cpp_area *area, uint32_t offset,
void *buffer, size_t length);
-/*
- * Write to a NFP CPP area handle from a buffer. The area must be acquired with
- * 'nfp_cpp_area_acquire()' before calling this operation.
- *
- * @param[in] area NFP CPP area handle
- * @param[in] offset Offset into the area
- * @param[in] buffer Location of buffer that holds the data
- * @param[in] length Length of the data to read
- *
- * @return bytes written on success, negative value on failure.
- */
int nfp_cpp_area_write(struct nfp_cpp_area *area, uint32_t offset,
const void *buffer, size_t length);
-/*
- * nfp_cpp_area_iomem() - get IOMEM region for CPP area
- * @area: CPP area handle
- *
- * Returns an iomem pointer for use with readl()/writel() style operations.
- *
- * NOTE: Area must have been locked down with an 'acquire'.
- *
- * Return: pointer to the area, or NULL
- */
void *nfp_cpp_area_iomem(struct nfp_cpp_area *area);
-/*
- * Get the NFP CPP handle that is the parent of a NFP CPP area handle
- *
- * @param cpp_area NFP CPP area handle
- * @return NFP CPP handle
- */
struct nfp_cpp *nfp_cpp_area_cpp(struct nfp_cpp_area *cpp_area);
-/*
- * Get the name passed during allocation of the NFP CPP area handle
- *
- * @param cpp_area NFP CPP area handle
- * @return Pointer to the area's name
- */
const char *nfp_cpp_area_name(struct nfp_cpp_area *cpp_area);
-/*
- * Read a block of data from a NFP CPP ID
- *
- * @param[in] cpp NFP CPP handle
- * @param[in] cpp_id NFP CPP ID
- * @param[in] address Offset into the NFP CPP ID address space
- * @param[in] kernel_vaddr Buffer to copy read data to
- * @param[in] length Size of the area to reserve
- *
- * @return bytes read on success, -1 on failure.
- */
int nfp_cpp_read(struct nfp_cpp *cpp, uint32_t cpp_id,
uint64_t address, void *kernel_vaddr, size_t length);
-/*
- * Write a block of data to a NFP CPP ID
- *
- * @param[in] cpp NFP CPP handle
- * @param[in] cpp_id NFP CPP ID
- * @param[in] address Offset into the NFP CPP ID address space
- * @param[in] kernel_vaddr Buffer to copy write data from
- * @param[in] length Size of the area to reserve
- *
- * @return bytes written on success, -1 on failure.
- */
int nfp_cpp_write(struct nfp_cpp *cpp, uint32_t cpp_id,
uint64_t address, const void *kernel_vaddr, size_t length);
-/*
- * Read a single 32-bit value from a NFP CPP area handle
- *
- * @param area NFP CPP area handle
- * @param offset offset into NFP CPP area handle
- * @param value output value
- *
- * The area must be acquired with 'nfp_cpp_area_acquire()' before calling this
- * operation.
- *
- * NOTE: offset must be 32-bit aligned.
- *
- * @return 0 on success, or -1 on error.
- */
int nfp_cpp_area_readl(struct nfp_cpp_area *area, uint32_t offset,
uint32_t *value);
-/*
- * Write a single 32-bit value to a NFP CPP area handle
- *
- * @param area NFP CPP area handle
- * @param offset offset into NFP CPP area handle
- * @param value value to write
- *
- * The area must be acquired with 'nfp_cpp_area_acquire()' before calling this
- * operation.
- *
- * NOTE: offset must be 32-bit aligned.
- *
- * @return 0 on success, or -1 on error.
- */
int nfp_cpp_area_writel(struct nfp_cpp_area *area, uint32_t offset,
uint32_t value);
-/*
- * Read a single 64-bit value from a NFP CPP area handle
- *
- * @param area NFP CPP area handle
- * @param offset offset into NFP CPP area handle
- * @param value output value
- *
- * The area must be acquired with 'nfp_cpp_area_acquire()' before calling this
- * operation.
- *
- * NOTE: offset must be 64-bit aligned.
- *
- * @return 0 on success, or -1 on error.
- */
int nfp_cpp_area_readq(struct nfp_cpp_area *area, uint32_t offset,
uint64_t *value);
-/*
- * Write a single 64-bit value to a NFP CPP area handle
- *
- * @param area NFP CPP area handle
- * @param offset offset into NFP CPP area handle
- * @param value value to write
- *
- * The area must be acquired with 'nfp_cpp_area_acquire()' before calling this
- * operation.
- *
- * NOTE: offset must be 64-bit aligned.
- *
- * @return 0 on success, or -1 on error.
- */
int nfp_cpp_area_writeq(struct nfp_cpp_area *area, uint32_t offset,
uint64_t value);
-/*
- * Write a single 32-bit value on the XPB bus
- *
- * @param cpp NFP CPP device handle
- * @param xpb_tgt XPB target and address
- * @param value value to write
- *
- * @return 0 on success, or -1 on failure.
- */
int nfp_xpb_writel(struct nfp_cpp *cpp, uint32_t xpb_tgt, uint32_t value);
-/*
- * Read a single 32-bit value from the XPB bus
- *
- * @param cpp NFP CPP device handle
- * @param xpb_tgt XPB target and address
- * @param value output value
- *
- * @return 0 on success, or -1 on failure.
- */
int nfp_xpb_readl(struct nfp_cpp *cpp, uint32_t xpb_tgt, uint32_t *value);
-/*
- * Read a 32-bit word from a NFP CPP ID
- *
- * @param cpp NFP CPP handle
- * @param cpp_id NFP CPP ID
- * @param address offset into the NFP CPP ID address space
- * @param value output value
- *
- * @return 0 on success, or -1 on failure.
- */
int nfp_cpp_readl(struct nfp_cpp *cpp, uint32_t cpp_id,
uint64_t address, uint32_t *value);
-/*
- * Write a 32-bit value to a NFP CPP ID
- *
- * @param cpp NFP CPP handle
- * @param cpp_id NFP CPP ID
- * @param address offset into the NFP CPP ID address space
- * @param value value to write
- *
- * @return 0 on success, or -1 on failure.
- *
- */
int nfp_cpp_writel(struct nfp_cpp *cpp, uint32_t cpp_id,
uint64_t address, uint32_t value);
-/*
- * Read a 64-bit work from a NFP CPP ID
- *
- * @param cpp NFP CPP handle
- * @param cpp_id NFP CPP ID
- * @param address offset into the NFP CPP ID address space
- * @param value output value
- *
- * @return 0 on success, or -1 on failure.
- */
int nfp_cpp_readq(struct nfp_cpp *cpp, uint32_t cpp_id,
uint64_t address, uint64_t *value);
-/*
- * Write a 64-bit value to a NFP CPP ID
- *
- * @param cpp NFP CPP handle
- * @param cpp_id NFP CPP ID
- * @param address offset into the NFP CPP ID address space
- * @param value value to write
- *
- * @return 0 on success, or -1 on failure.
- */
int nfp_cpp_writeq(struct nfp_cpp *cpp, uint32_t cpp_id,
uint64_t address, uint64_t value);
-/*
- * Initialize a mutex location
-
- * The CPP target:address must point to a 64-bit aligned location, and will
- * initialize 64 bits of data at the location.
- *
- * This creates the initial mutex state, as locked by this nfp_cpp_interface().
- *
- * This function should only be called when setting up the initial lock state
- * upon boot-up of the system.
- *
- * @param cpp NFP CPP handle
- * @param target NFP CPP target ID
- * @param address Offset into the address space of the NFP CPP target ID
- * @param key_id Unique 32-bit value for this mutex
- *
- * @return 0 on success, negative value on failure.
- */
int nfp_cpp_mutex_init(struct nfp_cpp *cpp, int target,
uint64_t address, uint32_t key_id);
-/*
- * Create a mutex handle from an address controlled by a MU Atomic engine
- *
- * The CPP target:address must point to a 64-bit aligned location, and reserve
- * 64 bits of data at the location for use by the handle.
- *
- * Only target/address pairs that point to entities that support the MU Atomic
- * Engine's CmpAndSwap32 command are supported.
- *
- * @param cpp NFP CPP handle
- * @param target NFP CPP target ID
- * @param address Offset into the address space of the NFP CPP target ID
- * @param key_id 32-bit unique key (must match the key at this location)
- *
- * @return A non-NULL struct nfp_cpp_mutex * on success, NULL on
- * failure.
- */
struct nfp_cpp_mutex *nfp_cpp_mutex_alloc(struct nfp_cpp *cpp, int target,
uint64_t address, uint32_t key_id);
-/*
- * Free a mutex handle - does not alter the lock state
- *
- * @param mutex NFP CPP Mutex handle
- */
void nfp_cpp_mutex_free(struct nfp_cpp_mutex *mutex);
-/*
- * Lock a mutex handle, using the NFP MU Atomic Engine
- *
- * @param mutex NFP CPP Mutex handle
- *
- * @return 0 on success, negative value on failure.
- */
int nfp_cpp_mutex_lock(struct nfp_cpp_mutex *mutex);
-/*
- * Unlock a mutex handle, using the NFP MU Atomic Engine
- *
- * @param mutex NFP CPP Mutex handle
- *
- * @return 0 on success, negative value on failure.
- */
int nfp_cpp_mutex_unlock(struct nfp_cpp_mutex *mutex);
-/*
- * Attempt to lock a mutex handle, using the NFP MU Atomic Engine
- *
- * @param mutex NFP CPP Mutex handle
- * @return 0 if the lock succeeded, negative value on failure.
- */
int nfp_cpp_mutex_trylock(struct nfp_cpp_mutex *mutex);
uint32_t nfp_cpp_mu_locality_lsb(struct nfp_cpp *cpp);
@@ -58,7 +58,7 @@
* Minimal size of the PCIe cfg memory we depend on being mapped,
* queue controller and DMA controller don't have to be covered.
*/
-#define NFP_PCI_MIN_MAP_SIZE 0x080000
+#define NFP_PCI_MIN_MAP_SIZE 0x080000 /* 512K */
#define NFP_PCIE_P2C_FIXED_SIZE(bar) (1 << (bar)->bitsize)
#define NFP_PCIE_P2C_BULK_SIZE(bar) (1 << (bar)->bitsize)
@@ -72,40 +72,25 @@
#define NFP_PCIE_CPP_BAR_PCIETOCPPEXPBAR(bar, slot) \
(((bar) * 8 + (slot)) * 4)
-/*
- * Define to enable a bit more verbose debug output.
- * Set to 1 to enable a bit more verbose debug output.
- */
struct nfp_pcie_user;
struct nfp6000_area_priv;
-/*
- * struct nfp_bar - describes BAR configuration and usage
- * @nfp: backlink to owner
- * @barcfg: cached contents of BAR config CSR
- * @base: the BAR's base CPP offset
- * @mask: mask for the BAR aperture (read only)
- * @bitsize: bitsize of BAR aperture (read only)
- * @index: index of the BAR
- * @lock: lock to specify if bar is in use
- * @refcnt: number of current users
- * @iomem: mapped IO memory
- */
+/* Describes BAR configuration and usage */
#define NFP_BAR_MIN 1
#define NFP_BAR_MID 5
#define NFP_BAR_MAX 7
struct nfp_bar {
- struct nfp_pcie_user *nfp;
- uint32_t barcfg;
- uint64_t base; /* CPP address base */
- uint64_t mask; /* Bit mask of the bar */
- uint32_t bitsize; /* Bit size of the bar */
- uint32_t index;
- int lock;
+ struct nfp_pcie_user *nfp; /**< Backlink to owner */
+ uint32_t barcfg; /**< BAR config CSR */
+ uint64_t base; /**< Base CPP offset */
+ uint64_t mask; /**< Mask of the BAR aperture (read only) */
+ uint32_t bitsize; /**< Bit size of the BAR aperture (read only) */
+ uint32_t index; /**< Index of the BAR */
+ int lock; /**< If the BAR has been locked */
char *csr;
- char *iomem;
+ char *iomem; /**< mapped IO memory */
};
#define BUSDEV_SZ 13
@@ -360,9 +345,7 @@ nfp_disable_bars(struct nfp_pcie_user *nfp)
}
}
-/*
- * Generic CPP bus access interface.
- */
+/* Generic CPP bus access interface. */
struct nfp6000_area_priv {
struct nfp_bar *bar;
@@ -26,6 +26,15 @@
#define NFP_PL_DEVICE_MODEL_MASK (NFP_PL_DEVICE_PART_MASK | \
NFP_PL_DEVICE_ID_MASK)
+/**
+ * Set the private data of the nfp_cpp instance
+ *
+ * @param cpp
+ * NFP CPP operations structure
+ *
+ * @return
+ * Opaque device pointer
+ */
void
nfp_cpp_priv_set(struct nfp_cpp *cpp,
void *priv)
@@ -33,12 +42,29 @@ nfp_cpp_priv_set(struct nfp_cpp *cpp,
cpp->priv = priv;
}
+/**
+ * Return the private data of the nfp_cpp instance
+ *
+ * @param cpp
+ * NFP CPP operations structure
+ *
+ * @return
+ * Opaque device pointer
+ */
void *
nfp_cpp_priv(struct nfp_cpp *cpp)
{
return cpp->priv;
}
+/**
+ * Set the model id
+ *
+ * @param cpp
+ * NFP CPP operations structure
+ * @param model
+ * Model ID
+ */
void
nfp_cpp_model_set(struct nfp_cpp *cpp,
uint32_t model)
@@ -46,6 +72,15 @@ nfp_cpp_model_set(struct nfp_cpp *cpp,
cpp->model = model;
}
+/**
+ * Retrieve the Model ID of the NFP
+ *
+ * @param cpp
+ * NFP CPP handle
+ *
+ * @return
+ * NFP CPP Model ID
+ */
uint32_t
nfp_cpp_model(struct nfp_cpp *cpp)
{
@@ -63,6 +98,14 @@ nfp_cpp_model(struct nfp_cpp *cpp)
return model;
}
+/**
+ * Set the private instance owned data of a nfp_cpp struct
+ *
+ * @param cpp
+ * NFP CPP operations structure
+ * @param interface
+ * Interface ID
+ */
void
nfp_cpp_interface_set(struct nfp_cpp *cpp,
uint32_t interface)
@@ -70,6 +113,17 @@ nfp_cpp_interface_set(struct nfp_cpp *cpp,
cpp->interface = interface;
}
+/**
+ * Retrieve the Serial ID of the NFP
+ *
+ * @param cpp
+ * NFP CPP handle
+ * @param serial
+ * Pointer to NFP serial number
+ *
+ * @return
+ * Length of NFP serial number
+ */
int
nfp_cpp_serial(struct nfp_cpp *cpp,
const uint8_t **serial)
@@ -78,6 +132,16 @@ nfp_cpp_serial(struct nfp_cpp *cpp,
return cpp->serial_len;
}
+/**
+ * Set the private instance owned data of a nfp_cpp struct
+ *
+ * @param cpp
+ * NFP CPP operations structure
+ * @param serial
+ * NFP serial byte array
+ * @param serial_len
+ * Length of the serial byte array
+ */
int
nfp_cpp_serial_set(struct nfp_cpp *cpp,
const uint8_t *serial,
@@ -96,6 +160,15 @@ nfp_cpp_serial_set(struct nfp_cpp *cpp,
return 0;
}
+/**
+ * Retrieve the Interface ID of the NFP
+ *
+ * @param cpp
+ * NFP CPP handle
+ *
+ * @return
+ * NFP CPP Interface ID
+ */
uint16_t
nfp_cpp_interface(struct nfp_cpp *cpp)
{
@@ -105,18 +178,45 @@ nfp_cpp_interface(struct nfp_cpp *cpp)
return cpp->interface;
}
+/**
+ * Get the privately allocated portion of a NFP CPP area handle
+ *
+ * @param cpp_area
+ * NFP CPP area handle
+ *
+ * @return
+ * Pointer to the private area, or NULL on failure
+ */
void *
nfp_cpp_area_priv(struct nfp_cpp_area *cpp_area)
{
return &cpp_area[1];
}
+/**
+ * Get the NFP CPP handle that is the pci_dev of a NFP CPP area handle
+ *
+ * @param cpp_area
+ * NFP CPP area handle
+ *
+ * @return
+ * NFP CPP handle
+ */
struct nfp_cpp *
nfp_cpp_area_cpp(struct nfp_cpp_area *cpp_area)
{
return cpp_area->cpp;
}
+/**
+ * Get the name passed during allocation of the NFP CPP area handle
+ *
+ * @param cpp_area
+ * NFP CPP area handle
+ *
+ * @return
+ * Pointer to the area's name
+ */
const char *
nfp_cpp_area_name(struct nfp_cpp_area *cpp_area)
{
@@ -153,15 +253,24 @@ nfp_cpp_mu_locality_lsb(struct nfp_cpp *cpp)
return cpp->mu_locality_lsb;
}
-/*
- * nfp_cpp_area_alloc - allocate a new CPP area
- * @cpp: CPP handle
- * @dest: CPP id
- * @address: start address on CPP target
- * @size: size of area in bytes
+/**
+ * Allocate and initialize a CPP area structure.
+ * The area must later be locked down with an 'acquire' before
+ * it can be safely accessed.
*
- * Allocate and initialize a CPP area structure. The area must later
- * be locked down with an 'acquire' before it can be safely accessed.
+ * @param cpp
+ * CPP device handle
+ * @param dest
+ * CPP id
+ * @param name
+ * Name of region
+ * @param address
+ * Address of region
+ * @param size
+ * Size of region
+ *
+ * @return
+ * NFP CPP area handle, or NULL
*
* NOTE: @address and @size must be 32-bit aligned values.
*/
@@ -211,6 +320,25 @@ nfp_cpp_area_alloc_with_name(struct nfp_cpp *cpp,
return area;
}
+/**
+ * Allocate and initialize a CPP area structure.
+ * The area must later be locked down with an 'acquire' before
+ * it can be safely accessed.
+ *
+ * @param cpp
+ * CPP device handle
+ * @param dest
+ * CPP id
+ * @param address
+ * Address of region
+ * @param size
+ * Size of region
+ *
+ * @return
+ * NFP CPP area handle, or NULL
+ *
+ * NOTE: @address and @size must be 32-bit aligned values.
+ */
struct nfp_cpp_area *
nfp_cpp_area_alloc(struct nfp_cpp *cpp,
uint32_t dest,
@@ -220,17 +348,22 @@ nfp_cpp_area_alloc(struct nfp_cpp *cpp,
return nfp_cpp_area_alloc_with_name(cpp, dest, NULL, address, size);
}
-/*
- * nfp_cpp_area_alloc_acquire - allocate a new CPP area and lock it down
- *
- * @cpp: CPP handle
- * @dest: CPP id
- * @address: start address on CPP target
- * @size: size of area
- *
+/**
* Allocate and initialize a CPP area structure, and lock it down so
* that it can be accessed directly.
*
+ * @param cpp
+ * CPP device handle
+ * @param destination
+ * CPP id
+ * @param address
+ * Address of region
+ * @param size
+ * Size of region
+ *
+ * @return
+ * NFP CPP area handle, or NULL
+ *
* NOTE: @address and @size must be 32-bit aligned values.
*
* NOTE: The area must also be 'released' when the structure is freed.
@@ -258,11 +391,11 @@ nfp_cpp_area_alloc_acquire(struct nfp_cpp *cpp,
return area;
}
-/*
- * nfp_cpp_area_free - free up the CPP area
- * area: CPP area handle
- *
+/**
* Frees up memory resources held by the CPP area.
+ *
+ * @param area
+ * CPP area handle
*/
void
nfp_cpp_area_free(struct nfp_cpp_area *area)
@@ -272,11 +405,11 @@ nfp_cpp_area_free(struct nfp_cpp_area *area)
free(area);
}
-/*
- * nfp_cpp_area_release_free - release CPP area and free it
- * area: CPP area handle
+/**
+ * Releases CPP area and frees up memory resources held by it.
*
- * Releases CPP area and frees up memory resources held by the it.
+ * @param area
+ * CPP area handle
*/
void
nfp_cpp_area_release_free(struct nfp_cpp_area *area)
@@ -285,12 +418,15 @@ nfp_cpp_area_release_free(struct nfp_cpp_area *area)
nfp_cpp_area_free(area);
}
-/*
- * nfp_cpp_area_acquire - lock down a CPP area for access
- * @area: CPP area handle
+/**
+ * Locks down the CPP area for a potential long term activity.
+ * Area must always be locked down before being accessed.
*
- * Locks down the CPP area for a potential long term activity. Area
- * must always be locked down before being accessed.
+ * @param area
+ * CPP area handle
+ *
+ * @return
+ * 0 on success, -1 on failure.
*/
int
nfp_cpp_area_acquire(struct nfp_cpp_area *area)
@@ -307,11 +443,11 @@ nfp_cpp_area_acquire(struct nfp_cpp_area *area)
return 0;
}
-/*
- * nfp_cpp_area_release - release a locked down CPP area
- * @area: CPP area handle
- *
+/**
* Releases a previously locked down CPP area.
+ *
+ * @param area
+ * CPP area handle
*/
void
nfp_cpp_area_release(struct nfp_cpp_area *area)
@@ -320,16 +456,16 @@ nfp_cpp_area_release(struct nfp_cpp_area *area)
area->cpp->op->area_release(area);
}
-/*
- * nfp_cpp_area_iomem() - get IOMEM region for CPP area
+/**
+ * Returns an iomem pointer for use with readl()/writel() style operations.
*
- * @area: CPP area handle
+ * @param area
+ * CPP area handle
*
- * Returns an iomem pointer for use with readl()/writel() style operations.
+ * @return
+ * Pointer to the area, or NULL
*
* NOTE: Area must have been locked down with an 'acquire'.
- *
- * Return: pointer to the area, or NULL
*/
void *
nfp_cpp_area_iomem(struct nfp_cpp_area *area)
@@ -342,18 +478,22 @@ nfp_cpp_area_iomem(struct nfp_cpp_area *area)
return iomem;
}
-/*
- * nfp_cpp_area_read - read data from CPP area
+/**
+ * Read data from indicated CPP region.
*
- * @area: CPP area handle
- * @offset: offset into CPP area
- * @kernel_vaddr: kernel address to put data into
- * @length: number of bytes to read
+ * @param area
+ * CPP area handle
+ * @param offset
+ * Offset into CPP area
+ * @param kernel_vaddr
+ * Address to put data into
+ * @param length
+ * Number of bytes to read
*
- * Read data from indicated CPP region.
+ * @return
+ * Length of io, or -ERRNO
*
* NOTE: @offset and @length must be 32-bit aligned values.
- *
* NOTE: Area must have been locked down with an 'acquire'.
*/
int
@@ -368,18 +508,22 @@ nfp_cpp_area_read(struct nfp_cpp_area *area,
return area->cpp->op->area_read(area, kernel_vaddr, offset, length);
}
-/*
- * nfp_cpp_area_write - write data to CPP area
+/**
+ * Write data to indicated CPP region.
*
- * @area: CPP area handle
- * @offset: offset into CPP area
- * @kernel_vaddr: kernel address to read data from
- * @length: number of bytes to write
+ * @param area
+ * CPP area handle
+ * @param offset
+ * Offset into CPP area
+ * @param kernel_vaddr
+ * Address to put data into
+ * @param length
+ * Number of bytes to read
*
- * Write data to indicated CPP region.
+ * @return
+ * Length of io, or -ERRNO
*
* NOTE: @offset and @length must be 32-bit aligned values.
- *
* NOTE: Area must have been locked down with an 'acquire'.
*/
int
@@ -436,6 +580,19 @@ nfp_xpb_to_cpp(struct nfp_cpp *cpp,
return xpb;
}
+/**
+ * Read a uint32_t value from an area
+ *
+ * @param area
+ * CPP Area handle
+ * @param offset
+ * Offset into area
+ * @param value
+ * Pointer to read buffer
+ *
+ * @return
+ * 0 on success, or -ERRNO
+ */
int
nfp_cpp_area_readl(struct nfp_cpp_area *area,
uint32_t offset,
@@ -450,6 +607,19 @@ nfp_cpp_area_readl(struct nfp_cpp_area *area,
return (sz == sizeof(*value)) ? 0 : -1;
}
+/**
+ * Write a uint32_t vale to an area
+ *
+ * @param area
+ * CPP Area handle
+ * @param offset
+ * Offset into area
+ * @param value
+ * Value to write
+ *
+ * @return
+ * 0 on success, or -ERRNO
+ */
int
nfp_cpp_area_writel(struct nfp_cpp_area *area,
uint32_t offset,
@@ -462,6 +632,19 @@ nfp_cpp_area_writel(struct nfp_cpp_area *area,
return (sz == sizeof(value)) ? 0 : -1;
}
+/**
+ * Read a uint64_t value from an area
+ *
+ * @param area
+ * CPP Area handle
+ * @param offset
+ * Offset into area
+ * @param value
+ * Pointer to read buffer
+ *
+ * @return
+ * 0 on success, or -ERRNO
+ */
int
nfp_cpp_area_readq(struct nfp_cpp_area *area,
uint32_t offset,
@@ -476,6 +659,19 @@ nfp_cpp_area_readq(struct nfp_cpp_area *area,
return (sz == sizeof(*value)) ? 0 : -1;
}
+/**
+ * Write a uint64_t vale to an area
+ *
+ * @param area
+ * CPP Area handle
+ * @param offset
+ * Offset into area
+ * @param value
+ * Value to write
+ *
+ * @return
+ * 0 on success, or -ERRNO
+ */
int
nfp_cpp_area_writeq(struct nfp_cpp_area *area,
uint32_t offset,
@@ -489,6 +685,21 @@ nfp_cpp_area_writeq(struct nfp_cpp_area *area,
return (sz == sizeof(value)) ? 0 : -1;
}
+/**
+ * Read a uint32_t value from a CPP location
+ *
+ * @param cpp
+ * CPP device handle
+ * @param cpp_id
+ * CPP ID for operation
+ * @param address
+ * Address for operation
+ * @param value
+ * Pointer to read buffer
+ *
+ * @return
+ * 0 on success, or -ERRNO
+ */
int
nfp_cpp_readl(struct nfp_cpp *cpp,
uint32_t cpp_id,
@@ -504,6 +715,21 @@ nfp_cpp_readl(struct nfp_cpp *cpp,
return (sz == sizeof(*value)) ? 0 : -1;
}
+/**
+ * Write a uint32_t value to a CPP location
+ *
+ * @param cpp
+ * CPP device handle
+ * @param cpp_id
+ * CPP ID for operation
+ * @param address
+ * Address for operation
+ * @param value
+ * Value to write
+ *
+ * @return
+ * 0 on success, or -ERRNO
+ */
int
nfp_cpp_writel(struct nfp_cpp *cpp,
uint32_t cpp_id,
@@ -518,6 +744,21 @@ nfp_cpp_writel(struct nfp_cpp *cpp,
return (sz == sizeof(value)) ? 0 : -1;
}
+/**
+ * Read a uint64_t value from a CPP location
+ *
+ * @param cpp
+ * CPP device handle
+ * @param cpp_id
+ * CPP ID for operation
+ * @param address
+ * Address for operation
+ * @param value
+ * Pointer to read buffer
+ *
+ * @return
+ * 0 on success, or -ERRNO
+ */
int
nfp_cpp_readq(struct nfp_cpp *cpp,
uint32_t cpp_id,
@@ -533,6 +774,21 @@ nfp_cpp_readq(struct nfp_cpp *cpp,
return (sz == sizeof(*value)) ? 0 : -1;
}
+/**
+ * Write a uint64_t value to a CPP location
+ *
+ * @param cpp
+ * CPP device handle
+ * @param cpp_id
+ * CPP ID for operation
+ * @param address
+ * Address for operation
+ * @param value
+ * Value to write
+ *
+ * @return
+ * 0 on success, or -ERRNO
+ */
int
nfp_cpp_writeq(struct nfp_cpp *cpp,
uint32_t cpp_id,
@@ -547,6 +803,19 @@ nfp_cpp_writeq(struct nfp_cpp *cpp,
return (sz == sizeof(value)) ? 0 : -1;
}
+/**
+ * Write a uint32_t word to a XPB location
+ *
+ * @param cpp
+ * CPP device handle
+ * @param xpb_addr
+ * XPB target and address
+ * @param value
+ * Value to write
+ *
+ * @return
+ * 0 on success, or -ERRNO
+ */
int
nfp_xpb_writel(struct nfp_cpp *cpp,
uint32_t xpb_addr,
@@ -559,6 +828,19 @@ nfp_xpb_writel(struct nfp_cpp *cpp,
return nfp_cpp_writel(cpp, cpp_dest, xpb_addr, value);
}
+/**
+ * Read a uint32_t value from a XPB location
+ *
+ * @param cpp
+ * CPP device handle
+ * @param xpb_addr
+ * XPB target and address
+ * @param value
+ * Pointer to read buffer
+ *
+ * @return
+ * 0 on success, or -ERRNO
+ */
int
nfp_xpb_readl(struct nfp_cpp *cpp,
uint32_t xpb_addr,
@@ -625,9 +907,11 @@ nfp_cpp_alloc(struct rte_pci_device *dev,
return cpp;
}
-/*
- * nfp_cpp_free - free the CPP handle
- * @cpp: CPP handle
+/**
+ * Free the CPP handle
+ *
+ * @param cpp
+ * CPP handle
*/
void
nfp_cpp_free(struct nfp_cpp *cpp)
@@ -641,6 +925,19 @@ nfp_cpp_free(struct nfp_cpp *cpp)
free(cpp);
}
+/**
+ * Create a NFP CPP handle from device
+ *
+ * @param dev
+ * PCI device
+ * @param driver_lock_needed
+ * Driver lock flag
+ *
+ * @return
+ * NFP CPP handle on success, NULL on failure
+ *
+ * NOTE: On failure, cpp_ops->free will be called!
+ */
struct nfp_cpp *
nfp_cpp_from_device_name(struct rte_pci_device *dev,
int driver_lock_needed)
@@ -648,13 +945,22 @@ nfp_cpp_from_device_name(struct rte_pci_device *dev,
return nfp_cpp_alloc(dev, driver_lock_needed);
}
-/*
- * nfp_cpp_read - read from CPP target
- * @cpp: CPP handle
- * @destination: CPP id
- * @address: offset into CPP target
- * @kernel_vaddr: kernel buffer for result
- * @length: number of bytes to read
+/**
+ * Read from CPP target
+ *
+ * @param cpp
+ * CPP handle
+ * @param destination
+ * CPP id
+ * @param address
+ * Offset into CPP target
+ * @param kernel_vaddr
+ * Buffer for result
+ * @param length
+ * Number of bytes to read
+ *
+ * @return
+ * Length of io, or -ERRNO
*/
int
nfp_cpp_read(struct nfp_cpp *cpp,
@@ -678,13 +984,22 @@ nfp_cpp_read(struct nfp_cpp *cpp,
return err;
}
-/*
- * nfp_cpp_write - write to CPP target
- * @cpp: CPP handle
- * @destination: CPP id
- * @address: offset into CPP target
- * @kernel_vaddr: kernel buffer to read from
- * @length: number of bytes to write
+/**
+ * Write to CPP target
+ *
+ * @param cpp
+ * CPP handle
+ * @param destination
+ * CPP id
+ * @param address
+ * Offset into CPP target
+ * @param kernel_vaddr
+ * Buffer to read from
+ * @param length
+ * Number of bytes to write
+ *
+ * @return
+ * Length of io, or -ERRNO
*/
int
nfp_cpp_write(struct nfp_cpp *cpp,
@@ -731,18 +1046,23 @@ __nfp_cpp_model_autodetect(struct nfp_cpp *cpp,
return 0;
}
-/*
- * nfp_cpp_map_area() - Helper function to map an area
- * @cpp: NFP CPP handler
- * @cpp_id: CPP ID
- * @addr: CPP address
- * @size: Size of the area
- * @area: Area handle (output)
+/**
+ * Map an area of IOMEM access.
+ * To undo the effect of this function call @nfp_cpp_area_release_free(*area).
*
- * Map an area of IOMEM access. To undo the effect of this function call
- * @nfp_cpp_area_release_free(*area).
+ * @param cpp
+ * NFP CPP handler
+ * @param cpp_id
+ * CPP id
+ * @param addr
+ * CPP address
+ * @param size
+ * Size of the area
+ * @param area
+ * Area handle (output)
*
- * Return: Pointer to memory mapped area or NULL
+ * @return
+ * Pointer to memory mapped area or NULL
*/
uint8_t *
nfp_cpp_map_area(struct nfp_cpp *cpp,
@@ -3,7 +3,8 @@
* All rights reserved.
*/
-/* Parse the hwinfo table that the ARM firmware builds in the ARM scratch SRAM
+/*
+ * Parse the hwinfo table that the ARM firmware builds in the ARM scratch SRAM
* after chip reset.
*
* Examples of the fields:
@@ -146,7 +147,7 @@ nfp_hwinfo_fetch(struct nfp_cpp *cpp,
struct nfp_hwinfo *db;
wait.tv_sec = 0;
- wait.tv_nsec = 10000000;
+ wait.tv_nsec = 10000000; /* 10ms */
for (;;) {
db = nfp_hwinfo_try_fetch(cpp, hwdb_size);
@@ -154,7 +155,7 @@ nfp_hwinfo_fetch(struct nfp_cpp *cpp,
return db;
nanosleep(&wait, NULL);
- if (count++ > 200) {
+ if (count++ > 200) { /* 10ms * 200 = 2s */
PMD_DRV_LOG(ERR, "NFP access error");
return NULL;
}
@@ -180,12 +181,16 @@ nfp_hwinfo_read(struct nfp_cpp *cpp)
return db;
}
-/*
- * nfp_hwinfo_lookup() - Find a value in the HWInfo table by name
- * @hwinfo: NFP HWinfo table
- * @lookup: HWInfo name to search for
+/**
+ * Find a value in the HWInfo table by name
+ *
+ * @param hwinfo
+ * NFP HWInfo table
+ * @param lookup
+ * HWInfo name to search for
*
- * Return: Value of the HWInfo name, or NULL
+ * @return
+ * Value of the HWInfo name, or NULL
*/
const char *
nfp_hwinfo_lookup(struct nfp_hwinfo *hwinfo,
@@ -59,6 +59,8 @@
* Packed UTF8Z strings, ie 'key1\000value1\000key2\000value2\000'
*
* Unsorted.
+ *
+ * Note: Only the HwInfo v2 Table be supported now.
*/
#define NFP_HWINFO_VERSION_1 ('H' << 24 | 'I' << 16 | 1 << 8 | 0 << 1 | 0)
@@ -87,15 +87,16 @@ nfp_mip_read_resource(struct nfp_cpp *cpp,
return err;
}
-/*
- * nfp_mip_open() - Get device MIP structure
- * @cpp: NFP CPP Handle
- *
- * Copy MIP structure from NFP device and return it. The returned
+/**
+ * Copy MIP structure from NFP device and return it. The returned
* structure is handled internally by the library and should be
- * freed by calling nfp_mip_close().
+ * freed by calling @nfp_mip_close().
+ *
+ * @param cpp
+ * NFP CPP Handle
*
- * Return: pointer to mip, NULL on failure.
+ * @return
+ * Pointer to MIP, NULL on failure.
*/
struct nfp_mip *
nfp_mip_open(struct nfp_cpp *cpp)
@@ -131,11 +132,15 @@ nfp_mip_name(const struct nfp_mip *mip)
return mip->name;
}
-/*
- * nfp_mip_symtab() - Get the address and size of the MIP symbol table
- * @mip: MIP handle
- * @addr: Location for NFP DDR address of MIP symbol table
- * @size: Location for size of MIP symbol table
+/**
+ * Get the address and size of the MIP symbol table.
+ *
+ * @param mip
+ * MIP handle
+ * @param addr
+ * Location for NFP DDR address of MIP symbol table
+ * @param size
+ * Location for size of MIP symbol table
*/
void
nfp_mip_symtab(const struct nfp_mip *mip,
@@ -146,11 +151,15 @@ nfp_mip_symtab(const struct nfp_mip *mip,
*size = rte_le_to_cpu_32(mip->symtab_size);
}
-/*
- * nfp_mip_strtab() - Get the address and size of the MIP symbol name table
- * @mip: MIP handle
- * @addr: Location for NFP DDR address of MIP symbol name table
- * @size: Location for size of MIP symbol name table
+/**
+ * Get the address and size of the MIP symbol name table.
+ *
+ * @param mip
+ * MIP handle
+ * @param addr
+ * Location for NFP DDR address of MIP symbol name table
+ * @param size
+ * Location for size of MIP symbol name table
*/
void
nfp_mip_strtab(const struct nfp_mip *mip,
@@ -53,7 +53,7 @@ _nfp_cpp_mutex_validate(uint32_t model,
return 0;
}
-/*
+/**
* Initialize a mutex location
*
* The CPP target:address must point to a 64-bit aligned location, and
@@ -65,13 +65,17 @@ _nfp_cpp_mutex_validate(uint32_t model,
* This function should only be called when setting up
* the initial lock state upon boot-up of the system.
*
- * @param mutex NFP CPP Mutex handle
- * @param target NFP CPP target ID (ie NFP_CPP_TARGET_CLS or
- * NFP_CPP_TARGET_MU)
- * @param address Offset into the address space of the NFP CPP target ID
- * @param key Unique 32-bit value for this mutex
+ * @param cpp
+ * NFP CPP handle
+ * @param target
+ * NFP CPP target ID (ie NFP_CPP_TARGET_CLS or NFP_CPP_TARGET_MU)
+ * @param address
+ * Offset into the address space of the NFP CPP target ID
+ * @param key
+ * Unique 32-bit value for this mutex
*
- * @return 0 on success, or negative value on failure.
+ * @return
+ * 0 on success, or negative value on failure
*/
int
nfp_cpp_mutex_init(struct nfp_cpp *cpp,
@@ -99,7 +103,7 @@ nfp_cpp_mutex_init(struct nfp_cpp *cpp,
return 0;
}
-/*
+/**
* Create a mutex handle from an address controlled by a MU Atomic engine
*
* The CPP target:address must point to a 64-bit aligned location, and
@@ -108,13 +112,17 @@ nfp_cpp_mutex_init(struct nfp_cpp *cpp,
* Only target/address pairs that point to entities that support the
* MU Atomic Engine are supported.
*
- * @param cpp NFP CPP handle
- * @param target NFP CPP target ID (ie NFP_CPP_TARGET_CLS or
- * NFP_CPP_TARGET_MU)
- * @param address Offset into the address space of the NFP CPP target ID
- * @param key 32-bit unique key (must match the key at this location)
+ * @param cpp
+ * NFP CPP handle
+ * @param target
+ * NFP CPP target ID (ie NFP_CPP_TARGET_CLS or NFP_CPP_TARGET_MU)
+ * @param address
+ * Offset into the address space of the NFP CPP target ID
+ * @param key
+ * 32-bit unique key (must match the key at this location)
*
- * @return A non-NULL struct nfp_cpp_mutex * on success, NULL on failure.
+ * @return
+ * A non-NULL struct nfp_cpp_mutex * on success, NULL on failure.
*/
struct nfp_cpp_mutex *
nfp_cpp_mutex_alloc(struct nfp_cpp *cpp,
@@ -178,10 +186,11 @@ nfp_cpp_mutex_alloc(struct nfp_cpp *cpp,
return mutex;
}
-/*
+/**
* Free a mutex handle - does not alter the lock state
*
- * @param mutex NFP CPP Mutex handle
+ * @param mutex
+ * NFP CPP Mutex handle
*/
void
nfp_cpp_mutex_free(struct nfp_cpp_mutex *mutex)
@@ -203,12 +212,14 @@ nfp_cpp_mutex_free(struct nfp_cpp_mutex *mutex)
free(mutex);
}
-/*
+/**
* Lock a mutex handle, using the NFP MU Atomic Engine
*
- * @param mutex NFP CPP Mutex handle
+ * @param mutex
+ * NFP CPP Mutex handle
*
- * @return 0 on success, or negative value on failure.
+ * @return
+ * 0 on success, or negative value on failure.
*/
int
nfp_cpp_mutex_lock(struct nfp_cpp_mutex *mutex)
@@ -229,12 +240,14 @@ nfp_cpp_mutex_lock(struct nfp_cpp_mutex *mutex)
return 0;
}
-/*
+/**
* Unlock a mutex handle, using the NFP MU Atomic Engine
*
- * @param mutex NFP CPP Mutex handle
+ * @param mutex
+ * NFP CPP Mutex handle
*
- * @return 0 on success, or negative value on failure.
+ * @return
+ * 0 on success, or negative value on failure
*/
int
nfp_cpp_mutex_unlock(struct nfp_cpp_mutex *mutex)
@@ -280,16 +293,18 @@ nfp_cpp_mutex_unlock(struct nfp_cpp_mutex *mutex)
return err;
}
-/*
+/**
* Attempt to lock a mutex handle, using the NFP MU Atomic Engine
*
* Valid lock states:
- *
* 0x....0000 - Unlocked
* 0x....000f - Locked
*
- * @param mutex NFP CPP Mutex handle
- * @return 0 if the lock succeeded, negative value on failure.
+ * @param mutex
+ * NFP CPP Mutex handle
+ *
+ * @return
+ * 0 if the lock succeeded, negative value on failure.
*/
int
nfp_cpp_mutex_trylock(struct nfp_cpp_mutex *mutex)
@@ -352,7 +367,7 @@ nfp_cpp_mutex_trylock(struct nfp_cpp_mutex *mutex)
* If there was another contending for this lock, then
* the lock state would be 0x....000f
*
- * Write our owner ID into the lock
+ * Write our owner ID into the lock.
* While not strictly necessary, this helps with
* debug and bookkeeping.
*/
@@ -52,7 +52,7 @@ nffw_fwinfo_mip_mu_da_get(const struct nffw_fwinfo *fi)
return (fi->loaded__mu_da__mip_off_hi >> 8) & 1;
}
-/* mip_offset = (loaded__mu_da__mip_off_hi<7:0> << 8) | mip_offset_lo */
+/* mip_offset = (loaded__mu_da__mip_off_hi<7:0> << 32) | mip_offset_lo */
static uint64_t
nffw_fwinfo_mip_offset_get(const struct nffw_fwinfo *fi)
{
@@ -112,11 +112,14 @@ nffw_res_fwinfos(struct nfp_nffw_info_data *fwinf,
}
}
-/*
- * nfp_nffw_info_open() - Acquire the lock on the NFFW table
- * @cpp: NFP CPP handle
+/**
+ * Acquire the lock on the NFFW table
+ *
+ * @param cpp
+ * NFP CPP handle
*
- * Return: nffw info pointer, or NULL on failure
+ * @return
+ * NFFW info pointer, or NULL on failure
*/
struct nfp_nffw_info *
nfp_nffw_info_open(struct nfp_cpp *cpp)
@@ -168,11 +171,11 @@ nfp_nffw_info_open(struct nfp_cpp *cpp)
return NULL;
}
-/*
- * nfp_nffw_info_close() - Release the lock on the NFFW table
- * @state: NFP FW info state
+/**
+ * Release the lock on the NFFW table
*
- * Return: void
+ * @param state
+ * NFFW info pointer
*/
void
nfp_nffw_info_close(struct nfp_nffw_info *state)
@@ -181,11 +184,14 @@ nfp_nffw_info_close(struct nfp_nffw_info *state)
free(state);
}
-/*
- * nfp_nffw_info_fwid_first() - Return the first firmware ID in the NFFW
- * @state: NFP FW info state
+/**
+ * Return the first firmware ID in the NFFW
*
- * Return: First NFFW firmware info, NULL on failure
+ * @param state
+ * NFFW info pointer
+ *
+ * @return:
+ * First NFFW firmware info, NULL on failure
*/
static struct nffw_fwinfo *
nfp_nffw_info_fwid_first(struct nfp_nffw_info *state)
@@ -205,13 +211,18 @@ nfp_nffw_info_fwid_first(struct nfp_nffw_info *state)
return NULL;
}
-/*
- * nfp_nffw_info_mip_first() - Retrieve the location of the first FW's MIP
- * @state: NFP FW info state
- * @cpp_id: Pointer to the CPP ID of the MIP
- * @off: Pointer to the CPP Address of the MIP
+/**
+ * Retrieve the location of the first FW's MIP
+ *
+ * @param state
+ * NFFW info pointer
+ * @param cpp_id
+ * Pointer to the CPP ID of the MIP
+ * @param off
+ * Pointer to the CPP Address of the MIP
*
- * Return: 0, or -ERRNO
+ * @return
+ * 0, or -ERRNO
*/
int
nfp_nffw_info_mip_first(struct nfp_nffw_info *state,
@@ -8,7 +8,8 @@
#include "nfp_cpp.h"
-/* Init-CSR owner IDs for firmware map to firmware IDs which start at 4.
+/*
+ * Init-CSR owner IDs for firmware map to firmware IDs which start at 4.
* Lower IDs are reserved for target and loader IDs.
*/
#define NFFW_FWID_EXT 3 /* For active MEs that we didn't load. */
@@ -16,7 +17,7 @@
#define NFFW_FWID_ALL 255
-/**
+/*
* NFFW_INFO_VERSION history:
* 0: This was never actually used (before versioning), but it refers to
* the previous struct which had FWINFO_CNT = MEINFO_CNT = 120 that later
@@ -35,6 +36,7 @@
#define NFFW_MEINFO_CNT_V2 200
#define NFFW_FWINFO_CNT_V2 200
+/* nfp.nffw meinfo */
struct nffw_meinfo {
uint32_t ctxmask__fwid__meid;
};
@@ -109,9 +109,11 @@ nfp_nsp_check(struct nfp_nsp *state)
return 0;
}
-/*
- * nfp_nsp_open() - Prepare for communication and lock the NSP resource.
- * @cpp: NFP CPP Handle
+/**
+ * Prepare for communication and lock the NSP resource.
+ *
+ * @param cpp
+ * NFP CPP Handle
*/
struct nfp_nsp *
nfp_nsp_open(struct nfp_cpp *cpp)
@@ -145,9 +147,11 @@ nfp_nsp_open(struct nfp_cpp *cpp)
return state;
}
-/*
- * nfp_nsp_close() - Clean up and unlock the NSP resource.
- * @state: NFP SP state
+/**
+ * Clean up and unlock the NSP resource.
+ *
+ * @param state
+ * NFP SP state
*/
void
nfp_nsp_close(struct nfp_nsp *state)
@@ -181,7 +185,7 @@ nfp_nsp_wait_reg(struct nfp_cpp *cpp,
struct timespec wait;
wait.tv_sec = 0;
- wait.tv_nsec = 25000000;
+ wait.tv_nsec = 25000000; /* 25ms */
for (;;) {
err = nfp_cpp_readq(cpp, nsp_cpp, addr, reg);
@@ -194,28 +198,27 @@ nfp_nsp_wait_reg(struct nfp_cpp *cpp,
return 0;
nanosleep(&wait, 0);
- if (count++ > 1000)
+ if (count++ > 1000) /* 25ms * 1000 = 25s */
return -ETIMEDOUT;
}
}
-/*
- * nfp_nsp_command() - Execute a command on the NFP Service Processor
- * @state: NFP SP state
- * @code: NFP SP Command Code
- * @option: NFP SP Command Argument
- * @buff_cpp: NFP SP Buffer CPP Address info
- * @buff_addr: NFP SP Buffer Host address
- *
- * Return: 0 for success with no result
+/**
+ * Execute a command on the NFP Service Processor
*
- * positive value for NSP completion with a result code
+ * @param state
+ * NFP SP state
+ * @param arg
+ * NFP command argument structure
*
- * -EAGAIN if the NSP is not yet present
- * -ENODEV if the NSP is not a supported model
- * -EBUSY if the NSP is stuck
- * -EINTR if interrupted while waiting for completion
- * -ETIMEDOUT if the NSP took longer than 30 seconds to complete
+ * @return
+ * - 0 for success with no result
+ * - Positive value for NSP completion with a result code
+ * - -EAGAIN if the NSP is not yet present
+ * - -ENODEV if the NSP is not a supported model
+ * - -EBUSY if the NSP is stuck
+ * - -EINTR if interrupted while waiting for completion
+ * - -ETIMEDOUT if the NSP took longer than @timeout_sec seconds to complete
*/
static int
nfp_nsp_command(struct nfp_nsp *state,
@@ -383,7 +386,7 @@ nfp_nsp_wait(struct nfp_nsp *state)
struct timespec wait;
wait.tv_sec = 0;
- wait.tv_nsec = 25000000;
+ wait.tv_nsec = 25000000; /* 25ms */
for (;;) {
err = nfp_nsp_command(state, SPCODE_NOOP, 0, 0, 0);
@@ -392,7 +395,7 @@ nfp_nsp_wait(struct nfp_nsp *state)
nanosleep(&wait, 0);
- if (count++ > 1000) {
+ if (count++ > 1000) { /* 25ms * 1000 = 25s */
err = -ETIMEDOUT;
break;
}
@@ -158,72 +158,45 @@ enum nfp_eth_fec {
#define NFP_FEC_REED_SOLOMON RTE_BIT32(NFP_FEC_REED_SOLOMON_BIT)
#define NFP_FEC_DISABLED RTE_BIT32(NFP_FEC_DISABLED_BIT)
-/**
- * struct nfp_eth_table - ETH table information
- * @count: number of table entries
- * @max_index: max of @index fields of all @ports
- * @ports: table of ports
- *
- * @eth_index: port index according to legacy ethX numbering
- * @index: chip-wide first channel index
- * @nbi: NBI index
- * @base: first channel index (within NBI)
- * @lanes: number of channels
- * @speed: interface speed (in Mbps)
- * @interface: interface (module) plugged in
- * @media: media type of the @interface
- * @fec: forward error correction mode
- * @aneg: auto negotiation mode
- * @mac_addr: interface MAC address
- * @label_port: port id
- * @label_subport: id of interface within port (for split ports)
- * @enabled: is enabled?
- * @tx_enabled: is TX enabled?
- * @rx_enabled: is RX enabled?
- * @override_changed: is media reconfig pending?
- *
- * @port_type: one of %PORT_* defines for ethtool
- * @port_lanes: total number of lanes on the port (sum of lanes of all subports)
- * @is_split: is interface part of a split port
- * @fec_modes_supported: bitmap of FEC modes supported
- */
+/* ETH table information */
struct nfp_eth_table {
- uint32_t count;
- uint32_t max_index;
+ uint32_t count; /**< Number of table entries */
+ uint32_t max_index; /**< Max of @index fields of all @ports */
struct nfp_eth_table_port {
+ /** Port index according to legacy ethX numbering */
uint32_t eth_index;
- uint32_t index;
- uint32_t nbi;
- uint32_t base;
- uint32_t lanes;
- uint32_t speed;
+ uint32_t index; /**< Chip-wide first channel index */
+ uint32_t nbi; /**< NBI index */
+ uint32_t base; /**< First channel index (within NBI) */
+ uint32_t lanes; /**< Number of channels */
+ uint32_t speed; /**< Interface speed (in Mbps) */
- uint32_t interface;
- enum nfp_eth_media media;
+ uint32_t interface; /**< Interface (module) plugged in */
+ enum nfp_eth_media media; /**< Media type of the @interface */
- enum nfp_eth_fec fec;
- enum nfp_eth_aneg aneg;
+ enum nfp_eth_fec fec; /**< Forward Error Correction mode */
+ enum nfp_eth_aneg aneg; /**< Auto negotiation mode */
- struct rte_ether_addr mac_addr;
+ struct rte_ether_addr mac_addr; /**< Interface MAC address */
- uint8_t label_port;
+ uint8_t label_port; /**< Port id */
+ /** Id of interface within port (for split ports) */
uint8_t label_subport;
- int enabled;
- int tx_enabled;
- int rx_enabled;
-
- int override_changed;
+ int enabled; /**< Enable port */
+ int tx_enabled; /**< Enable TX */
+ int rx_enabled; /**< Enable RX */
- /* Computed fields */
- uint8_t port_type;
+ int override_changed; /**< Media reconfig pending */
+ uint8_t port_type; /**< One of %PORT_* */
+ /** Sum of lanes of all subports of this port */
uint32_t port_lanes;
- int is_split;
+ int is_split; /**< Split port */
- uint32_t fec_modes_supported;
- } ports[];
+ uint32_t fec_modes_supported; /**< Bitmap of FEC modes supported */
+ } ports[]; /**< Table of ports */
};
struct nfp_eth_table *nfp_eth_read_ports(struct nfp_cpp *cpp);
@@ -263,28 +236,17 @@ int __nfp_eth_set_aneg(struct nfp_nsp *nsp, enum nfp_eth_aneg mode);
int __nfp_eth_set_speed(struct nfp_nsp *nsp, uint32_t speed);
int __nfp_eth_set_split(struct nfp_nsp *nsp, uint32_t lanes);
-/**
- * struct nfp_nsp_identify - NSP static information
- * @version: opaque version string
- * @flags: version flags
- * @br_primary: branch id of primary bootloader
- * @br_secondary: branch id of secondary bootloader
- * @br_nsp: branch id of NSP
- * @primary: version of primary bootloader
- * @secondary: version id of secondary bootloader
- * @nsp: version id of NSP
- * @sensor_mask: mask of present sensors available on NIC
- */
+/* NSP static information */
struct nfp_nsp_identify {
- char version[40];
- uint8_t flags;
- uint8_t br_primary;
- uint8_t br_secondary;
- uint8_t br_nsp;
- uint16_t primary;
- uint16_t secondary;
- uint16_t nsp;
- uint64_t sensor_mask;
+ char version[40]; /**< Opaque version string */
+ uint8_t flags; /**< Version flags */
+ uint8_t br_primary; /**< Branch id of primary bootloader */
+ uint8_t br_secondary; /**< Branch id of secondary bootloader */
+ uint8_t br_nsp; /**< Branch id of NSP */
+ uint16_t primary; /**< Version of primary bootloader */
+ uint16_t secondary; /**< Version id of secondary bootloader */
+ uint16_t nsp; /**< Version id of NSP */
+ uint64_t sensor_mask; /**< Mask of present sensors available on NIC */
};
struct nfp_nsp_identify *__nfp_nsp_identify(struct nfp_nsp *nsp);
@@ -264,7 +264,8 @@ __nfp_eth_read_ports(struct nfp_nsp *nsp)
goto err;
}
- /* The NFP3800 NIC support 8 ports, but only 2 ports are valid,
+ /*
+ * The NFP3800 NIC support 8 ports, but only 2 ports are valid,
* the rest 6 ports mac are all 0, ensure we don't use these port
*/
for (i = 0; i < NSP_ETH_MAX_COUNT; i++) {
@@ -274,7 +275,8 @@ __nfp_eth_read_ports(struct nfp_nsp *nsp)
cnt++;
}
- /* Some versions of flash will give us 0 instead of port count. For
+ /*
+ * Some versions of flash will give us 0 instead of port count. For
* those that give a port count, verify it against the value calculated
* above.
*/
@@ -312,14 +314,16 @@ __nfp_eth_read_ports(struct nfp_nsp *nsp)
return NULL;
}
-/*
- * nfp_eth_read_ports() - retrieve port information
- * @cpp: NFP CPP handle
+/**
+ * Read the port information from the device.
+ *
+ * Returned structure should be freed once no longer needed.
*
- * Read the port information from the device. Returned structure should
- * be freed with kfree() once no longer needed.
+ * @param cpp
+ * NFP CPP handle
*
- * Return: populated ETH table or NULL on error.
+ * @return
+ * Populated ETH table or NULL on error.
*/
struct nfp_eth_table *
nfp_eth_read_ports(struct nfp_cpp *cpp)
@@ -387,19 +391,19 @@ nfp_eth_config_cleanup_end(struct nfp_nsp *nsp)
free(entries);
}
-/*
- * nfp_eth_config_commit_end() - perform recorded configuration changes
- * @nsp: NFP NSP handle returned from nfp_eth_config_start()
- *
+/**
* Perform the configuration which was requested with __nfp_eth_set_*()
- * helpers and recorded in @nsp state. If device was already configured
- * as requested or no __nfp_eth_set_*() operations were made no NSP command
+ * helpers and recorded in @nsp state. If device was already configured
+ * as requested or no __nfp_eth_set_*() operations were made, no NSP command
* will be performed.
*
- * Return:
- * 0 - configuration successful;
- * 1 - no changes were needed;
- * -ERRNO - configuration failed.
+ * @param nsp
+ * NFP NSP handle returned from nfp_eth_config_start()
+ *
+ * @return
+ * - (0) Configuration successful
+ * - (1) No changes were needed
+ * - (-ERRNO) Configuration failed
*/
int
nfp_eth_config_commit_end(struct nfp_nsp *nsp)
@@ -417,19 +421,21 @@ nfp_eth_config_commit_end(struct nfp_nsp *nsp)
return ret;
}
-/*
- * nfp_eth_set_mod_enable() - set PHY module enable control bit
- * @cpp: NFP CPP handle
- * @idx: NFP chip-wide port index
- * @enable: Desired state
- *
+/**
* Enable or disable PHY module (this usually means setting the TX lanes
* disable bits).
*
- * Return:
- * 0 - configuration successful;
- * 1 - no changes were needed;
- * -ERRNO - configuration failed.
+ * @param cpp
+ * NFP CPP handle
+ * @param idx
+ * NFP chip-wide port index
+ * @param enable
+ * Desired state
+ *
+ * @return
+ * - (0) Configuration successful
+ * - (1) No changes were needed
+ * - (-ERRNO) Configuration failed
*/
int
nfp_eth_set_mod_enable(struct nfp_cpp *cpp,
@@ -460,18 +466,20 @@ nfp_eth_set_mod_enable(struct nfp_cpp *cpp,
return nfp_eth_config_commit_end(nsp);
}
-/*
- * nfp_eth_set_configured() - set PHY module configured control bit
- * @cpp: NFP CPP handle
- * @idx: NFP chip-wide port index
- * @configed: Desired state
- *
+/**
* Set the ifup/ifdown state on the PHY.
*
- * Return:
- * 0 - configuration successful;
- * 1 - no changes were needed;
- * -ERRNO - configuration failed.
+ * @param cpp
+ * NFP CPP handle
+ * @param idx
+ * NFP chip-wide port index
+ * @param configured
+ * Desired state
+ *
+ * @return
+ * - (0) Configuration successful
+ * - (1) No changes were needed
+ * - (-ERRNO) Configuration failed
*/
int
nfp_eth_set_configured(struct nfp_cpp *cpp,
@@ -525,7 +533,7 @@ nfp_eth_set_bit_config(struct nfp_nsp *nsp,
/*
* Note: set features were added in ABI 0.14 but the error
- * codes were initially not populated correctly.
+ * codes were initially not populated correctly.
*/
if (nfp_nsp_get_abi_ver_minor(nsp) < 17) {
PMD_DRV_LOG(ERR, "set operations not supported, please update flash");
@@ -555,15 +563,17 @@ nfp_eth_set_bit_config(struct nfp_nsp *nsp,
val, ctrl_bit); \
}))
-/*
- * __nfp_eth_set_aneg() - set PHY autonegotiation control bit
- * @nsp: NFP NSP handle returned from nfp_eth_config_start()
- * @mode: Desired autonegotiation mode
- *
+/**
* Allow/disallow PHY module to advertise/perform autonegotiation.
* Will write to hwinfo overrides in the flash (persistent config).
*
- * Return: 0 or -ERRNO.
+ * @param nsp
+ * NFP NSP handle returned from nfp_eth_config_start()
+ * @param mode
+ * Desired autonegotiation mode
+ *
+ * @return
+ * 0 or -ERRNO
*/
int
__nfp_eth_set_aneg(struct nfp_nsp *nsp,
@@ -573,15 +583,17 @@ __nfp_eth_set_aneg(struct nfp_nsp *nsp,
NSP_ETH_STATE_ANEG, mode, NSP_ETH_CTRL_SET_ANEG);
}
-/*
- * __nfp_eth_set_fec() - set PHY forward error correction control bit
- * @nsp: NFP NSP handle returned from nfp_eth_config_start()
- * @mode: Desired fec mode
- *
+/**
* Set the PHY module forward error correction mode.
* Will write to hwinfo overrides in the flash (persistent config).
*
- * Return: 0 or -ERRNO.
+ * @param nsp
+ * NFP NSP handle returned from nfp_eth_config_start()
+ * @param mode
+ * Desired fec mode
+ *
+ * @return
+ * 0 or -ERRNO
*/
static int
__nfp_eth_set_fec(struct nfp_nsp *nsp,
@@ -591,16 +603,20 @@ __nfp_eth_set_fec(struct nfp_nsp *nsp,
NSP_ETH_STATE_FEC, mode, NSP_ETH_CTRL_SET_FEC);
}
-/*
- * nfp_eth_set_fec() - set PHY forward error correction control mode
- * @cpp: NFP CPP handle
- * @idx: NFP chip-wide port index
- * @mode: Desired fec mode
+/**
+ * Set PHY forward error correction control mode
+ *
+ * @param cpp
+ * NFP CPP handle
+ * @param idx
+ * NFP chip-wide port index
+ * @param mode
+ * Desired fec mode
*
- * Return:
- * 0 - configuration successful;
- * 1 - no changes were needed;
- * -ERRNO - configuration failed.
+ * @return
+ * - (0) Configuration successful
+ * - (1) No changes were needed
+ * - (-ERRNO) Configuration failed
*/
int
nfp_eth_set_fec(struct nfp_cpp *cpp,
@@ -623,17 +639,19 @@ nfp_eth_set_fec(struct nfp_cpp *cpp,
return nfp_eth_config_commit_end(nsp);
}
-/*
- * __nfp_eth_set_speed() - set interface speed/rate
- * @nsp: NFP NSP handle returned from nfp_eth_config_start()
- * @speed: Desired speed (per lane)
- *
- * Set lane speed. Provided @speed value should be subport speed divided
- * by number of lanes this subport is spanning (i.e. 10000 for 40G, 25000 for
- * 50G, etc.)
+/**
+ * Set lane speed.
+ * Provided @speed value should be subport speed divided by number of
+ * lanes this subport is spanning (i.e. 10000 for 40G, 25000 for 50G, etc.)
* Will write to hwinfo overrides in the flash (persistent config).
*
- * Return: 0 or -ERRNO.
+ * @param nsp
+ * NFP NSP handle returned from nfp_eth_config_start()
+ * @param speed
+ * Desired speed (per lane)
+ *
+ * @return
+ * 0 or -ERRNO
*/
int
__nfp_eth_set_speed(struct nfp_nsp *nsp,
@@ -651,15 +669,17 @@ __nfp_eth_set_speed(struct nfp_nsp *nsp,
NSP_ETH_STATE_RATE, rate, NSP_ETH_CTRL_SET_RATE);
}
-/*
- * __nfp_eth_set_split() - set interface lane split
- * @nsp: NFP NSP handle returned from nfp_eth_config_start()
- * @lanes: Desired lanes per port
- *
+/**
* Set number of lanes in the port.
* Will write to hwinfo overrides in the flash (persistent config).
*
- * Return: 0 or -ERRNO.
+ * @param nsp
+ * NFP NSP handle returned from nfp_eth_config_start()
+ * @param lanes
+ * Desired lanes per port
+ *
+ * @return
+ * 0 or -ERRNO
*/
int
__nfp_eth_set_split(struct nfp_nsp *nsp,
@@ -22,32 +22,23 @@
#define NFP_RESOURCE_ENTRY_NAME_SZ 8
-/*
- * struct nfp_resource_entry - Resource table entry
- * @owner: NFP CPP Lock, interface owner
- * @key: NFP CPP Lock, posix_crc32(name, 8)
- * @region: Memory region descriptor
- * @name: ASCII, zero padded name
- * @reserved
- * @cpp_action: CPP Action
- * @cpp_token: CPP Token
- * @cpp_target: CPP Target ID
- * @page_offset: 256-byte page offset into target's CPP address
- * @page_size: size, in 256-byte pages
- */
+/* Resource table entry */
struct nfp_resource_entry {
struct nfp_resource_entry_mutex {
- uint32_t owner;
- uint32_t key;
+ uint32_t owner; /**< NFP CPP Lock, interface owner */
+ uint32_t key; /**< NFP CPP Lock, posix_crc32(name, 8) */
} mutex;
+ /* Memory region descriptor */
struct nfp_resource_entry_region {
+ /** ASCII, zero padded name */
uint8_t name[NFP_RESOURCE_ENTRY_NAME_SZ];
uint8_t reserved[5];
- uint8_t cpp_action;
- uint8_t cpp_token;
- uint8_t cpp_target;
+ uint8_t cpp_action; /**< CPP Action */
+ uint8_t cpp_token; /**< CPP Token */
+ uint8_t cpp_target; /**< CPP Target ID */
+ /** 256-byte page offset into target's CPP address */
uint32_t page_offset;
- uint32_t page_size;
+ uint32_t page_size; /**< Size, in 256-byte pages */
} region;
};
@@ -147,14 +138,18 @@ nfp_resource_try_acquire(struct nfp_cpp *cpp,
return err;
}
-/*
- * nfp_resource_acquire() - Acquire a resource handle
- * @cpp: NFP CPP handle
- * @name: Name of the resource
+/**
+ * Acquire a resource handle
+ *
+ * Note: This function locks the acquired resource.
*
- * NOTE: This function locks the acquired resource
+ * @param cpp
+ * NFP CPP handle
+ * @param name
+ * Name of the resource
*
- * Return: NFP Resource handle, or NULL
+ * @return
+ * NFP Resource handle, or NULL
*/
struct nfp_resource *
nfp_resource_acquire(struct nfp_cpp *cpp,
@@ -183,7 +178,7 @@ nfp_resource_acquire(struct nfp_cpp *cpp,
}
wait.tv_sec = 0;
- wait.tv_nsec = 1000000;
+ wait.tv_nsec = 1000000; /* 1ms */
for (;;) {
err = nfp_resource_try_acquire(cpp, res, dev_mutex);
@@ -194,7 +189,7 @@ nfp_resource_acquire(struct nfp_cpp *cpp,
goto err_free;
}
- if (count++ > 1000) {
+ if (count++ > 1000) { /* 1ms * 1000 = 1s */
PMD_DRV_LOG(ERR, "Error: resource %s timed out", name);
err = -EBUSY;
goto err_free;
@@ -213,11 +208,13 @@ nfp_resource_acquire(struct nfp_cpp *cpp,
return NULL;
}
-/*
- * nfp_resource_release() - Release a NFP Resource handle
- * @res: NFP Resource handle
+/**
+ * Release a NFP Resource handle
*
- * NOTE: This function implicitly unlocks the resource handle
+ * NOTE: This function implicitly unlocks the resource handle.
+ *
+ * @param res
+ * NFP Resource handle
*/
void
nfp_resource_release(struct nfp_resource *res)
@@ -227,11 +224,14 @@ nfp_resource_release(struct nfp_resource *res)
free(res);
}
-/*
- * nfp_resource_cpp_id() - Return the cpp_id of a resource handle
- * @res: NFP Resource handle
+/**
+ * Return the cpp_id of a resource handle
+ *
+ * @param res
+ * NFP Resource handle
*
- * Return: NFP CPP ID
+ * @return
+ * NFP CPP ID
*/
uint32_t
nfp_resource_cpp_id(const struct nfp_resource *res)
@@ -239,11 +239,14 @@ nfp_resource_cpp_id(const struct nfp_resource *res)
return res->cpp_id;
}
-/*
- * nfp_resource_name() - Return the name of a resource handle
- * @res: NFP Resource handle
+/**
+ * Return the name of a resource handle
*
- * Return: const char pointer to the name of the resource
+ * @param res
+ * NFP Resource handle
+ *
+ * @return
+ * Const char pointer to the name of the resource
*/
const char *
nfp_resource_name(const struct nfp_resource *res)
@@ -251,11 +254,14 @@ nfp_resource_name(const struct nfp_resource *res)
return res->name;
}
-/*
- * nfp_resource_address() - Return the address of a resource handle
- * @res: NFP Resource handle
+/**
+ * Return the address of a resource handle
+ *
+ * @param res
+ * NFP Resource handle
*
- * Return: Address of the resource
+ * @return
+ * Address of the resource
*/
uint64_t
nfp_resource_address(const struct nfp_resource *res)
@@ -263,11 +269,14 @@ nfp_resource_address(const struct nfp_resource *res)
return res->addr;
}
-/*
- * nfp_resource_size() - Return the size in bytes of a resource handle
- * @res: NFP Resource handle
+/**
+ * Return the size in bytes of a resource handle
+ *
+ * @param res
+ * NFP Resource handle
*
- * Return: Size of the resource in bytes
+ * @return
+ * Size of the resource in bytes
*/
uint64_t
nfp_resource_size(const struct nfp_resource *res)
@@ -8,43 +8,27 @@
#include "nfp_cpp.h"
+/* Netronone Flow Firmware Table */
#define NFP_RESOURCE_NFP_NFFW "nfp.nffw"
+
+/* NFP Hardware Info Database */
#define NFP_RESOURCE_NFP_HWINFO "nfp.info"
+
+/* Service Processor */
#define NFP_RESOURCE_NSP "nfp.sp"
-/**
- * Opaque handle to a NFP Resource
- */
+/* Opaque handle to a NFP Resource */
struct nfp_resource;
struct nfp_resource *nfp_resource_acquire(struct nfp_cpp *cpp,
const char *name);
-/**
- * Release a NFP Resource, and free the handle
- * @param[in] res NFP Resource handle
- */
void nfp_resource_release(struct nfp_resource *res);
-/**
- * Return the CPP ID of a NFP Resource
- * @param[in] res NFP Resource handle
- * @return CPP ID of the NFP Resource
- */
uint32_t nfp_resource_cpp_id(const struct nfp_resource *res);
-/**
- * Return the name of a NFP Resource
- * @param[in] res NFP Resource handle
- * @return Name of the NFP Resource
- */
const char *nfp_resource_name(const struct nfp_resource *res);
-/**
- * Return the target address of a NFP Resource
- * @param[in] res NFP Resource handle
- * @return Address of the NFP Resource
- */
uint64_t nfp_resource_address(const struct nfp_resource *res);
uint64_t nfp_resource_size(const struct nfp_resource *res);
@@ -162,11 +162,14 @@ __nfp_rtsym_table_read(struct nfp_cpp *cpp,
return NULL;
}
-/*
- * nfp_rtsym_count() - Get the number of RTSYM descriptors
- * @rtbl: NFP RTsym table
+/**
+ * Get the number of RTSYM descriptors
+ *
+ * @param rtbl
+ * NFP RTSYM table
*
- * Return: Number of RTSYM descriptors
+ * @return
+ * Number of RTSYM descriptors
*/
int
nfp_rtsym_count(struct nfp_rtsym_table *rtbl)
@@ -177,12 +180,16 @@ nfp_rtsym_count(struct nfp_rtsym_table *rtbl)
return rtbl->num;
}
-/*
- * nfp_rtsym_get() - Get the Nth RTSYM descriptor
- * @rtbl: NFP RTsym table
- * @idx: Index (0-based) of the RTSYM descriptor
+/**
+ * Get the Nth RTSYM descriptor
+ *
+ * @param rtbl
+ * NFP RTSYM table
+ * @param idx
+ * Index (0-based) of the RTSYM descriptor
*
- * Return: const pointer to a struct nfp_rtsym descriptor, or NULL
+ * @return
+ * Const pointer to a struct nfp_rtsym descriptor, or NULL
*/
const struct nfp_rtsym *
nfp_rtsym_get(struct nfp_rtsym_table *rtbl,
@@ -197,12 +204,16 @@ nfp_rtsym_get(struct nfp_rtsym_table *rtbl,
return &rtbl->symtab[idx];
}
-/*
- * nfp_rtsym_lookup() - Return the RTSYM descriptor for a symbol name
- * @rtbl: NFP RTsym table
- * @name: Symbol name
+/**
+ * Return the RTSYM descriptor for a symbol name
+ *
+ * @param rtbl
+ * NFP RTSYM table
+ * @param name
+ * Symbol name
*
- * Return: const pointer to a struct nfp_rtsym descriptor, or NULL
+ * @return
+ * Const pointer to a struct nfp_rtsym descriptor, or NULL
*/
const struct nfp_rtsym *
nfp_rtsym_lookup(struct nfp_rtsym_table *rtbl,
@@ -227,7 +238,8 @@ nfp_rtsym_size(const struct nfp_rtsym *sym)
case NFP_RTSYM_TYPE_NONE:
PMD_DRV_LOG(ERR, "The type of rtsym '%s' is NONE", sym->name);
return 0;
- case NFP_RTSYM_TYPE_OBJECT: /* Fall through */
+ case NFP_RTSYM_TYPE_OBJECT:
+ /* FALLTHROUGH */
case NFP_RTSYM_TYPE_FUNCTION:
return sym->size;
case NFP_RTSYM_TYPE_ABS:
@@ -327,17 +339,22 @@ nfp_rtsym_readq(struct nfp_cpp *cpp,
return nfp_cpp_readq(cpp, cpp_id, addr, value);
}
-/*
- * nfp_rtsym_read_le() - Read a simple unsigned scalar value from symbol
- * @rtbl: NFP RTsym table
- * @name: Symbol name
- * @error: Pointer to error code (optional)
+/**
+ * Read a simple unsigned scalar value from symbol
*
* Lookup a symbol, map, read it and return it's value. Value of the symbol
* will be interpreted as a simple little-endian unsigned value. Symbol can
* be 4 or 8 bytes in size.
*
- * Return: value read, on error sets the error and returns ~0ULL.
+ * @param rtbl
+ * NFP RTSYM table
+ * @param name
+ * Symbol name
+ * @param error
+ * Pointer to error code (optional)
+ *
+ * @return
+ * Value read, on error sets the error and returns ~0ULL.
*/
uint64_t
nfp_rtsym_read_le(struct nfp_rtsym_table *rtbl,
@@ -31,12 +31,12 @@
* of "sram" symbols for backward compatibility, which are viewed as global.
*/
struct nfp_rtsym {
- const char *name;
- uint64_t addr;
- uint64_t size;
- int type;
- int target;
- int domain;
+ const char *name; /**< Symbol name */
+ uint64_t addr; /**< Address in the domain/target's address space */
+ uint64_t size; /**< Size (in bytes) of the symbol */
+ int type; /**< NFP_RTSYM_TYPE_* of the symbol */
+ int target; /**< CPP target identifier, or NFP_RTSYM_TARGET_* */
+ int domain; /**< CPP target domain */
};
struct nfp_rtsym_table;
@@ -767,7 +767,7 @@ nfp_encode_basic(uint64_t *addr,
/*
* Make sure we compare against isldN values by clearing the
* LSB. This is what the silicon does.
- **/
+ */
isld[0] &= ~1;
isld[1] &= ~1;