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-rw-r--r--cvmx-pko.h385
1 files changed, 315 insertions, 70 deletions
diff --git a/cvmx-pko.h b/cvmx-pko.h
index f7825b4afd0a..97cf76b68e5c 100644
--- a/cvmx-pko.h
+++ b/cvmx-pko.h
@@ -1,5 +1,5 @@
/***********************license start***************
- * Copyright (c) 2003-2010 Cavium Networks (support@cavium.com). All rights
+ * Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights
* reserved.
*
*
@@ -15,7 +15,7 @@
* disclaimer in the documentation and/or other materials provided
* with the distribution.
- * * Neither the name of Cavium Networks nor the names of
+ * * Neither the name of Cavium Inc. nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
@@ -26,7 +26,7 @@
* countries.
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
- * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
+ * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
@@ -67,7 +67,7 @@
* - PKO 3 word commands are now supported. Use
* cvmx_pko_send_packet_finish3().
*
- * <hr>$Revision: 49448 $<hr>
+ * <hr>$Revision: 70030 $<hr>
*/
@@ -77,6 +77,12 @@
#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
#include "cvmx-config.h"
#include "cvmx-pko-defs.h"
+#include <asm/octeon/cvmx-fau.h>
+#include <asm/octeon/cvmx-fpa.h>
+#include <asm/octeon/cvmx-pow.h>
+#include <asm/octeon/cvmx-cmd-queue.h>
+#include <asm/octeon/cvmx-helper.h>
+#include <asm/octeon/cvmx-helper-cfg.h>
#else
# ifndef CVMX_DONT_INCLUDE_CONFIG
# include "executive-config.h"
@@ -84,13 +90,14 @@
# include "cvmx-config.h"
# endif
# endif
-#endif
-
-
#include "cvmx-fau.h"
#include "cvmx-fpa.h"
#include "cvmx-pow.h"
#include "cvmx-cmd-queue.h"
+#include "cvmx-helper.h"
+#include "cvmx-helper-util.h"
+#include "cvmx-helper-cfg.h"
+#endif
/* Adjust the command buffer size by 1 word so that in the case of using only
** two word PKO commands no command words stradle buffers. The useful values
@@ -102,8 +109,18 @@ extern "C" {
#endif
#define CVMX_PKO_MAX_OUTPUT_QUEUES_STATIC 256
-#define CVMX_PKO_MAX_OUTPUT_QUEUES ((OCTEON_IS_MODEL(OCTEON_CN31XX) || OCTEON_IS_MODEL(OCTEON_CN3010) || OCTEON_IS_MODEL(OCTEON_CN3005) || OCTEON_IS_MODEL(OCTEON_CN50XX)) ? 32 : (OCTEON_IS_MODEL(OCTEON_CN58XX) || OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX) || OCTEON_IS_MODEL(OCTEON_CN63XX)) ? 256 : 128)
-#define CVMX_PKO_NUM_OUTPUT_PORTS ((OCTEON_IS_MODEL(OCTEON_CN63XX)) ? 44 : 40)
+#define CVMX_PKO_MAX_OUTPUT_QUEUES ((OCTEON_IS_MODEL(OCTEON_CN31XX) || \
+ OCTEON_IS_MODEL(OCTEON_CN3010) || \
+ OCTEON_IS_MODEL(OCTEON_CN3005) || \
+ OCTEON_IS_MODEL(OCTEON_CN50XX)) ? \
+ 32 : \
+ (OCTEON_IS_MODEL(OCTEON_CN58XX) || \
+ OCTEON_IS_MODEL(OCTEON_CN56XX) || \
+ OCTEON_IS_MODEL(OCTEON_CN52XX) || \
+ OCTEON_IS_MODEL(OCTEON_CN6XXX) || \
+ OCTEON_IS_MODEL(OCTEON_CNF7XXX)) ? \
+ 256 : 128)
+#define CVMX_PKO_NUM_OUTPUT_PORTS ((OCTEON_IS_MODEL(OCTEON_CN63XX)) ? 44 : (OCTEON_IS_MODEL(OCTEON_CN66XX) ? 46 : 40))
#define CVMX_PKO_MEM_QUEUE_PTRS_ILLEGAL_PID 63 /* use this for queues that are not used */
#define CVMX_PKO_QUEUE_STATIC_PRIORITY 9
#define CVMX_PKO_ILLEGAL_QUEUE 0xFFFF
@@ -127,7 +144,7 @@ typedef enum
{
CVMX_PKO_LOCK_NONE = 0, /**< PKO doesn't do any locking. It is the responsibility
of the application to make sure that no other core is
- accessing the same queue at the smae time */
+ accessing the same queue at the same time */
CVMX_PKO_LOCK_ATOMIC_TAG = 1, /**< PKO performs an atomic tagswitch to insure exclusive
access to the output queue. This will maintain
packet ordering on output */
@@ -139,9 +156,9 @@ typedef enum
typedef struct
{
- uint32_t packets;
- uint64_t octets;
- uint64_t doorbell;
+ uint32_t packets;
+ uint64_t octets;
+ uint64_t doorbell;
} cvmx_pko_port_status_t;
/**
@@ -157,8 +174,8 @@ typedef union
uint64_t is_io : 1; /**< Must be one */
uint64_t did : 8; /**< The ID of the device on the non-coherent bus */
uint64_t reserved2 : 4; /**< Must be zero */
- uint64_t reserved3 :18; /**< Must be zero */
- uint64_t port : 6; /**< The hardware likes to have the output port in addition to the output queue */
+ uint64_t reserved3 :15; /**< Must be zero */
+ uint64_t port : 9; /**< The hardware must have the output port in addition to the output queue */
uint64_t queue : 9; /**< The output queue to send the packet to (0-127 are legal) */
uint64_t reserved4 : 3; /**< Must be zero */
} s;
@@ -233,7 +250,6 @@ extern void cvmx_pko_disable(void);
#ifdef CVMX_ENABLE_PKO_FUNCTIONS
extern void cvmx_pko_shutdown(void);
-#endif
/**
* Configure a output port and the associated queues for use.
@@ -255,23 +271,34 @@ extern cvmx_pko_status_t cvmx_pko_config_port(uint64_t port, uint64_t base_queue
* to its pending list. This command includes the required
* CVMX_SYNCWS before the doorbell ring.
*
- * @param port Port the packet is for
+ * WARNING: This function may have to look up the proper PKO port in
+ * the IPD port to PKO port map, and is thus slower than calling
+ * cvmx_pko_doorbell_pkoid() directly if the PKO port identifier is
+ * known.
+ *
+ * @param ipd_port The IPD port corresponding the to pko port the packet is for
* @param queue Queue the packet is for
* @param len Length of the command in 64 bit words
*/
-static inline void cvmx_pko_doorbell(uint64_t port, uint64_t queue, uint64_t len)
+static inline void cvmx_pko_doorbell(uint64_t ipd_port, uint64_t queue, uint64_t len)
{
cvmx_pko_doorbell_address_t ptr;
+ uint64_t pko_port;
+
+ pko_port = ipd_port;
+ if (octeon_has_feature(OCTEON_FEATURE_PKND))
+ pko_port = cvmx_helper_cfg_ipd2pko_port_base(ipd_port);
ptr.u64 = 0;
ptr.s.mem_space = CVMX_IO_SEG;
ptr.s.did = CVMX_OCT_DID_PKT_SEND;
ptr.s.is_io = 1;
- ptr.s.port = port;
+ ptr.s.port = pko_port;
ptr.s.queue = queue;
CVMX_SYNCWS; /* Need to make sure output queue data is in DRAM before doorbell write */
cvmx_write_io(ptr.u64, len);
}
+#endif
/**
@@ -287,7 +314,7 @@ static inline void cvmx_pko_doorbell(uint64_t port, uint64_t queue, uint64_t len
* - CVMX_PKO_LOCK_NONE
* - PKO doesn't do any locking. It is the responsibility
* of the application to make sure that no other core
- * is accessing the same queue at the smae time.
+ * is accessing the same queue at the same time.
* - CVMX_PKO_LOCK_ATOMIC_TAG
* - PKO performs an atomic tagswitch to insure exclusive
* access to the output queue. This will maintain
@@ -301,7 +328,8 @@ static inline void cvmx_pko_doorbell(uint64_t port, uint64_t queue, uint64_t len
* NOTE: If atomic locking is used, the POW entry CANNOT be
* descheduled, as it does not contain a valid WQE pointer.
*
- * @param port Port to send it on
+ * @param port Port to send it on, this can be either IPD port or PKO
+ * port.
* @param queue Queue to use
* @param use_locking
* CVMX_PKO_LOCK_NONE, CVMX_PKO_LOCK_ATOMIC_TAG, or CVMX_PKO_LOCK_CMD_QUEUE
@@ -321,13 +349,19 @@ static inline void cvmx_pko_send_packet_prepare(uint64_t port, uint64_t queue, c
}
}
+#define cvmx_pko_send_packet_prepare_pkoid cvmx_pko_send_packet_prepare
/**
* Complete packet output. cvmx_pko_send_packet_prepare() must be called exactly once before this,
* and the same parameters must be passed to both cvmx_pko_send_packet_prepare() and
* cvmx_pko_send_packet_finish().
*
- * @param port Port to send it on
+ * WARNING: This function may have to look up the proper PKO port in
+ * the IPD port to PKO port map, and is thus slower than calling
+ * cvmx_pko_send_packet_finish_pkoid() directly if the PKO port
+ * identifier is known.
+ *
+ * @param ipd_port The IPD port corresponding the to pko port the packet is for
* @param queue Queue to use
* @param pko_command
* PKO HW command word
@@ -337,7 +371,7 @@ static inline void cvmx_pko_send_packet_prepare(uint64_t port, uint64_t queue, c
*
* @return returns CVMX_PKO_SUCCESS on success, or error code on failure of output
*/
-static inline cvmx_pko_status_t cvmx_pko_send_packet_finish(uint64_t port, uint64_t queue,
+static inline cvmx_pko_status_t cvmx_pko_send_packet_finish(uint64_t ipd_port, uint64_t queue,
cvmx_pko_command_word0_t pko_command,
cvmx_buf_ptr_t packet, cvmx_pko_lock_t use_locking)
{
@@ -350,7 +384,7 @@ static inline cvmx_pko_status_t cvmx_pko_send_packet_finish(uint64_t port, uint6
packet.u64);
if (cvmx_likely(result == CVMX_CMD_QUEUE_SUCCESS))
{
- cvmx_pko_doorbell(port, queue, 2);
+ cvmx_pko_doorbell(ipd_port, queue, 2);
return CVMX_PKO_SUCCESS;
}
else if ((result == CVMX_CMD_QUEUE_NO_MEMORY) || (result == CVMX_CMD_QUEUE_FULL))
@@ -369,7 +403,12 @@ static inline cvmx_pko_status_t cvmx_pko_send_packet_finish(uint64_t port, uint6
* and the same parameters must be passed to both cvmx_pko_send_packet_prepare() and
* cvmx_pko_send_packet_finish().
*
- * @param port Port to send it on
+ * WARNING: This function may have to look up the proper PKO port in
+ * the IPD port to PKO port map, and is thus slower than calling
+ * cvmx_pko_send_packet_finish3_pkoid() directly if the PKO port
+ * identifier is known.
+ *
+ * @param ipd_port The IPD port corresponding the to pko port the packet is for
* @param queue Queue to use
* @param pko_command
* PKO HW command word
@@ -380,7 +419,7 @@ static inline cvmx_pko_status_t cvmx_pko_send_packet_finish(uint64_t port, uint6
*
* @return returns CVMX_PKO_SUCCESS on success, or error code on failure of output
*/
-static inline cvmx_pko_status_t cvmx_pko_send_packet_finish3(uint64_t port, uint64_t queue,
+static inline cvmx_pko_status_t cvmx_pko_send_packet_finish3(uint64_t ipd_port, uint64_t queue,
cvmx_pko_command_word0_t pko_command,
cvmx_buf_ptr_t packet, uint64_t addr, cvmx_pko_lock_t use_locking)
{
@@ -394,7 +433,7 @@ static inline cvmx_pko_status_t cvmx_pko_send_packet_finish3(uint64_t port, uint
addr);
if (cvmx_likely(result == CVMX_CMD_QUEUE_SUCCESS))
{
- cvmx_pko_doorbell(port, queue, 3);
+ cvmx_pko_doorbell(ipd_port, queue, 3);
return CVMX_PKO_SUCCESS;
}
else if ((result == CVMX_CMD_QUEUE_NO_MEMORY) || (result == CVMX_CMD_QUEUE_FULL))
@@ -408,6 +447,22 @@ static inline cvmx_pko_status_t cvmx_pko_send_packet_finish3(uint64_t port, uint
}
/**
+ * Get the first pko_port for the (interface, index)
+ *
+ * @param interface
+ * @param index
+ */
+extern int cvmx_pko_get_base_pko_port(int interface, int index);
+
+/**
+ * Get the number of pko_ports for the (interface, index)
+ *
+ * @param interface
+ * @param index
+ */
+extern int cvmx_pko_get_num_pko_ports(int interface, int index);
+
+/**
* Return the pko output queue associated with a port and a specific core.
* In normal mode (PKO lockless operation is disabled), the value returned
* is the base queue.
@@ -415,10 +470,19 @@ static inline cvmx_pko_status_t cvmx_pko_send_packet_finish3(uint64_t port, uint
* @param port Port number
* @param core Core to get queue for
*
- * @return Core-specific output queue
+ * @return Core-specific output queue and -1 on error.
+ *
+ * Note: This function is invalid for o68.
*/
static inline int cvmx_pko_get_base_queue_per_core(int port, int core)
{
+ if (OCTEON_IS_MODEL(OCTEON_CN68XX))
+ {
+ cvmx_dprintf("cvmx_pko_get_base_queue_per_core() not"
+ "supported starting from o68!\n");
+ return -1;
+ }
+
#ifndef CVMX_HELPER_PKO_MAX_PORTS_INTERFACE0
#define CVMX_HELPER_PKO_MAX_PORTS_INTERFACE0 16
#endif
@@ -435,6 +499,11 @@ static inline int cvmx_pko_get_base_queue_per_core(int port, int core)
port with two ports gives us four queues, one for each mailbox */
#define CVMX_PKO_QUEUES_PER_PORT_SRIO1 2
#endif
+#ifndef CVMX_PKO_QUEUES_PER_PORT_SRIO2
+ /* We use two queues per port for SRIO2. Having two queues per
+ port with two ports gives us four queues, one for each mailbox */
+ #define CVMX_PKO_QUEUES_PER_PORT_SRIO2 2
+#endif
if (port < CVMX_PKO_MAX_PORTS_INTERFACE0)
return port * CVMX_PKO_QUEUES_PER_PORT_INTERFACE0 + core;
else if (port >=16 && port < 16 + CVMX_PKO_MAX_PORTS_INTERFACE1)
@@ -462,6 +531,13 @@ static inline int cvmx_pko_get_base_queue_per_core(int port, int core)
4 * CVMX_PKO_QUEUES_PER_PORT_LOOP +
2 * CVMX_PKO_QUEUES_PER_PORT_SRIO0 +
(port-42) * CVMX_PKO_QUEUES_PER_PORT_SRIO1;
+ else if ((port >= 44) && (port < 46))
+ return CVMX_PKO_MAX_PORTS_INTERFACE0 * CVMX_PKO_QUEUES_PER_PORT_INTERFACE0 +
+ CVMX_PKO_MAX_PORTS_INTERFACE1 * CVMX_PKO_QUEUES_PER_PORT_INTERFACE1 +
+ 4 * CVMX_PKO_QUEUES_PER_PORT_PCI +
+ 4 * CVMX_PKO_QUEUES_PER_PORT_LOOP +
+ 4 * CVMX_PKO_QUEUES_PER_PORT_SRIO0 +
+ (port-44) * CVMX_PKO_QUEUES_PER_PORT_SRIO2;
else
/* Given the limit on the number of ports we can map to
* CVMX_MAX_OUTPUT_QUEUES_STATIC queues (currently 256,
@@ -474,75 +550,98 @@ static inline int cvmx_pko_get_base_queue_per_core(int port, int core)
* For a given port number, return the base pko output queue
* for the port.
*
- * @param port Port number
+ * @param port IPD port number
* @return Base output queue
*/
-static inline int cvmx_pko_get_base_queue(int port)
-{
- return cvmx_pko_get_base_queue_per_core(port, 0);
-}
+extern int cvmx_pko_get_base_queue(int port);
/**
* For a given port number, return the number of pko output queues.
*
- * @param port Port number
+ * @param port IPD port number
* @return Number of output queues
*/
-static inline int cvmx_pko_get_num_queues(int port)
-{
- if (port < 16)
- return CVMX_PKO_QUEUES_PER_PORT_INTERFACE0;
- else if (port<32)
- return CVMX_PKO_QUEUES_PER_PORT_INTERFACE1;
- else if (port<36)
- return CVMX_PKO_QUEUES_PER_PORT_PCI;
- else if (port<40)
- return CVMX_PKO_QUEUES_PER_PORT_LOOP;
- else if (port<42)
- return CVMX_PKO_QUEUES_PER_PORT_SRIO0;
- else if (port<44)
- return CVMX_PKO_QUEUES_PER_PORT_SRIO1;
- else
- return 0;
-}
+extern int cvmx_pko_get_num_queues(int port);
+
+#ifdef CVMX_ENABLE_PKO_FUNCTIONS
/**
* Get the status counters for a port.
*
- * @param port_num Port number to get statistics for.
+ * @param ipd_port Port number (ipd_port) to get statistics for.
* @param clear Set to 1 to clear the counters after they are read
* @param status Where to put the results.
+ *
+ * Note:
+ * - Only the doorbell for the base queue of the ipd_port is
+ * collected.
+ * - Retrieving the stats involves writing the index through
+ * CVMX_PKO_REG_READ_IDX and reading the stat CSRs, in that
+ * order. It is not MP-safe and caller should guarantee
+ * atomicity.
*/
-static inline void cvmx_pko_get_port_status(uint64_t port_num, uint64_t clear, cvmx_pko_port_status_t *status)
+static inline void cvmx_pko_get_port_status(uint64_t ipd_port, uint64_t clear,
+ cvmx_pko_port_status_t *status)
{
cvmx_pko_reg_read_idx_t pko_reg_read_idx;
cvmx_pko_mem_count0_t pko_mem_count0;
cvmx_pko_mem_count1_t pko_mem_count1;
+ int pko_port, port_base, port_limit;
+
+ if (octeon_has_feature(OCTEON_FEATURE_PKND)) {
+ int interface = cvmx_helper_get_interface_num(ipd_port);
+ int index = cvmx_helper_get_interface_index_num(ipd_port);
+ port_base = cvmx_helper_get_pko_port(interface, index);
+ if (port_base == -1)
+ cvmx_dprintf("Warning: Invalid port_base\n");
+ port_limit = port_base + cvmx_pko_get_num_pko_ports(interface, index);
+ } else {
+ port_base = ipd_port;
+ port_limit = port_base + 1;
+ }
+ /*
+ * status->packets and status->octets
+ */
+ status->packets = 0;
+ status->octets = 0;
pko_reg_read_idx.u64 = 0;
- pko_reg_read_idx.s.index = port_num;
- cvmx_write_csr(CVMX_PKO_REG_READ_IDX, pko_reg_read_idx.u64);
- pko_mem_count0.u64 = cvmx_read_csr(CVMX_PKO_MEM_COUNT0);
- status->packets = pko_mem_count0.s.count;
- if (clear)
+ for (pko_port = port_base; pko_port < port_limit; pko_port++)
{
- pko_mem_count0.s.count = port_num;
- cvmx_write_csr(CVMX_PKO_MEM_COUNT0, pko_mem_count0.u64);
- }
- pko_mem_count1.u64 = cvmx_read_csr(CVMX_PKO_MEM_COUNT1);
- status->octets = pko_mem_count1.s.count;
- if (clear)
- {
- pko_mem_count1.s.count = port_num;
- cvmx_write_csr(CVMX_PKO_MEM_COUNT1, pko_mem_count1.u64);
+ /*
+ * In theory, one doesn't need to write the index csr every
+ * time as he can set pko_reg_read_idx.s.inc to increment
+ * the index automatically. Need to find out exactly how XXX.
+ */
+ pko_reg_read_idx.s.index = pko_port;
+ cvmx_write_csr(CVMX_PKO_REG_READ_IDX, pko_reg_read_idx.u64);
+
+ pko_mem_count0.u64 = cvmx_read_csr(CVMX_PKO_MEM_COUNT0);
+ status->packets += pko_mem_count0.s.count;
+ if (clear)
+ {
+ pko_mem_count0.s.count = pko_port;
+ cvmx_write_csr(CVMX_PKO_MEM_COUNT0, pko_mem_count0.u64);
+ }
+
+ pko_mem_count1.u64 = cvmx_read_csr(CVMX_PKO_MEM_COUNT1);
+ status->octets += pko_mem_count1.s.count;
+ if (clear)
+ {
+ pko_mem_count1.s.count = pko_port;
+ cvmx_write_csr(CVMX_PKO_MEM_COUNT1, pko_mem_count1.u64);
+ }
}
+ /*
+ * status->doorbell
+ */
if (OCTEON_IS_MODEL(OCTEON_CN3XXX))
{
cvmx_pko_mem_debug9_t debug9;
- pko_reg_read_idx.s.index = cvmx_pko_get_base_queue(port_num);
+ pko_reg_read_idx.s.index = cvmx_pko_get_base_queue(ipd_port);
cvmx_write_csr(CVMX_PKO_REG_READ_IDX, pko_reg_read_idx.u64);
debug9.u64 = cvmx_read_csr(CVMX_PKO_MEM_DEBUG9);
status->doorbell = debug9.cn38xx.doorbell;
@@ -550,13 +649,18 @@ static inline void cvmx_pko_get_port_status(uint64_t port_num, uint64_t clear, c
else
{
cvmx_pko_mem_debug8_t debug8;
- pko_reg_read_idx.s.index = cvmx_pko_get_base_queue(port_num);
+ pko_reg_read_idx.s.index = cvmx_pko_get_base_queue(ipd_port);
cvmx_write_csr(CVMX_PKO_REG_READ_IDX, pko_reg_read_idx.u64);
debug8.u64 = cvmx_read_csr(CVMX_PKO_MEM_DEBUG8);
- status->doorbell = debug8.cn58xx.doorbell;
+ if (OCTEON_IS_MODEL(OCTEON_CN68XX))
+ status->doorbell = debug8.cn68xx.doorbell;
+ else
+ status->doorbell = debug8.cn58xx.doorbell;
}
}
+#endif /* CVMX_ENABLE_PKO_FUNCTION */
+
/**
* Rate limit a PKO port to a max packets/sec. This function is only
@@ -584,6 +688,147 @@ extern int cvmx_pko_rate_limit_packets(int port, int packets_s, int burst);
*/
extern int cvmx_pko_rate_limit_bits(int port, uint64_t bits_s, int burst);
+/**
+ * @INTERNAL
+ *
+ * Retrieve the PKO pipe number for a port
+ *
+ * @param interface
+ * @param index
+ *
+ * @return negative on error.
+ *
+ * This applies only to the non-loopback interfaces.
+ *
+ */
+extern int __cvmx_pko_get_pipe(int interface, int index);
+
+/**
+ * For a given PKO port number, return the base output queue
+ * for the port.
+ *
+ * @param pko_port PKO port number
+ * @return Base output queue
+ */
+extern int cvmx_pko_get_base_queue_pkoid(int pko_port);
+
+/**
+ * For a given PKO port number, return the number of output queues
+ * for the port.
+ *
+ * @param pko_port PKO port number
+ * @return the number of output queues
+ */
+extern int cvmx_pko_get_num_queues_pkoid(int pko_port);
+
+/**
+ * Ring the packet output doorbell. This tells the packet
+ * output hardware that "len" command words have been added
+ * to its pending list. This command includes the required
+ * CVMX_SYNCWS before the doorbell ring.
+ *
+ * @param pko_port Port the packet is for
+ * @param queue Queue the packet is for
+ * @param len Length of the command in 64 bit words
+ */
+static inline void cvmx_pko_doorbell_pkoid(uint64_t pko_port, uint64_t queue, uint64_t len)
+{
+ cvmx_pko_doorbell_address_t ptr;
+
+ ptr.u64 = 0;
+ ptr.s.mem_space = CVMX_IO_SEG;
+ ptr.s.did = CVMX_OCT_DID_PKT_SEND;
+ ptr.s.is_io = 1;
+ ptr.s.port = pko_port;
+ ptr.s.queue = queue;
+ CVMX_SYNCWS; /* Need to make sure output queue data is in DRAM before doorbell write */
+ cvmx_write_io(ptr.u64, len);
+}
+
+/**
+ * Complete packet output. cvmx_pko_send_packet_prepare() must be called exactly once before this,
+ * and the same parameters must be passed to both cvmx_pko_send_packet_prepare() and
+ * cvmx_pko_send_packet_finish_pkoid().
+ *
+ * @param pko_port Port to send it on
+ * @param queue Queue to use
+ * @param pko_command
+ * PKO HW command word
+ * @param packet Packet to send
+ * @param use_locking
+ * CVMX_PKO_LOCK_NONE, CVMX_PKO_LOCK_ATOMIC_TAG, or CVMX_PKO_LOCK_CMD_QUEUE
+ *
+ * @return returns CVMX_PKO_SUCCESS on success, or error code on failure of output
+ */
+static inline cvmx_pko_status_t cvmx_pko_send_packet_finish_pkoid(int pko_port, uint64_t queue,
+ cvmx_pko_command_word0_t pko_command,
+ cvmx_buf_ptr_t packet, cvmx_pko_lock_t use_locking)
+{
+ cvmx_cmd_queue_result_t result;
+ if (use_locking == CVMX_PKO_LOCK_ATOMIC_TAG)
+ cvmx_pow_tag_sw_wait();
+ result = cvmx_cmd_queue_write2(CVMX_CMD_QUEUE_PKO(queue),
+ (use_locking == CVMX_PKO_LOCK_CMD_QUEUE),
+ pko_command.u64,
+ packet.u64);
+ if (cvmx_likely(result == CVMX_CMD_QUEUE_SUCCESS))
+ {
+ cvmx_pko_doorbell_pkoid(pko_port, queue, 2);
+ return CVMX_PKO_SUCCESS;
+ }
+ else if ((result == CVMX_CMD_QUEUE_NO_MEMORY) || (result == CVMX_CMD_QUEUE_FULL))
+ {
+ return CVMX_PKO_NO_MEMORY;
+ }
+ else
+ {
+ return CVMX_PKO_INVALID_QUEUE;
+ }
+}
+
+/**
+ * Complete packet output. cvmx_pko_send_packet_prepare() must be called exactly once before this,
+ * and the same parameters must be passed to both cvmx_pko_send_packet_prepare() and
+ * cvmx_pko_send_packet_finish_pkoid().
+ *
+ * @param pko_port The PKO port the packet is for
+ * @param queue Queue to use
+ * @param pko_command
+ * PKO HW command word
+ * @param packet Packet to send
+ * @param addr Plysical address of a work queue entry or physical address to zero on complete.
+ * @param use_locking
+ * CVMX_PKO_LOCK_NONE, CVMX_PKO_LOCK_ATOMIC_TAG, or CVMX_PKO_LOCK_CMD_QUEUE
+ *
+ * @return returns CVMX_PKO_SUCCESS on success, or error code on failure of output
+ */
+static inline cvmx_pko_status_t cvmx_pko_send_packet_finish3_pkoid(uint64_t pko_port, uint64_t queue,
+ cvmx_pko_command_word0_t pko_command,
+ cvmx_buf_ptr_t packet, uint64_t addr, cvmx_pko_lock_t use_locking)
+{
+ cvmx_cmd_queue_result_t result;
+ if (use_locking == CVMX_PKO_LOCK_ATOMIC_TAG)
+ cvmx_pow_tag_sw_wait();
+ result = cvmx_cmd_queue_write3(CVMX_CMD_QUEUE_PKO(queue),
+ (use_locking == CVMX_PKO_LOCK_CMD_QUEUE),
+ pko_command.u64,
+ packet.u64,
+ addr);
+ if (cvmx_likely(result == CVMX_CMD_QUEUE_SUCCESS))
+ {
+ cvmx_pko_doorbell_pkoid(pko_port, queue, 3);
+ return CVMX_PKO_SUCCESS;
+ }
+ else if ((result == CVMX_CMD_QUEUE_NO_MEMORY) || (result == CVMX_CMD_QUEUE_FULL))
+ {
+ return CVMX_PKO_NO_MEMORY;
+ }
+ else
+ {
+ return CVMX_PKO_INVALID_QUEUE;
+ }
+}
+
#endif /* CVMX_ENABLE_PKO_FUNCTIONS */
#ifdef __cplusplus