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numam-dpdk/drivers/net/bnxt/bnxt_cpr.h

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net/bnxt: add completion ring Structures, macros, and functions for working with completion rings in the driver. Completion Ring is used by the Ethernet controller to provide the status of transmitted & received packets, report errors, report status changes to the host software, and inter-function forwarding requests. In addition to the generic ring features, a completion ring can have a statistics context that has statistics periodically DMAed to host memory, along with a consumer index. bnxt_handle_async_event() handles completions not related to a specific transmit or receive ring such as link status changes which arrive on the default completion ring. Other physical or virtual functions on the same device may send an HWRM command forward request. In this case, we will pass it through unvalidated. In the future, we will be able to have the PF monitor and control VF access to the HWRM interface if needed. New HWRM Calls: bnxt_hwrm_exec_fwd_resp: Execute an encapsulated command and forward the response. Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: Stephen Hurd <stephen.hurd@broadcom.com> Reviewed-by: David Christensen <david.christensen@broadcom.com>
2016-06-15 21:23:08 +00:00
/*-
* BSD LICENSE
*
* Copyright(c) Broadcom Limited.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Broadcom Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _BNXT_CPR_H_
#define _BNXT_CPR_H_
net/bnxt: use I/O device memory read/write API Replace the raw I/O device memory read/write access with eal abstraction for I/O device memory read/write access to fix portability issues across different architectures. CC: Stephen Hurd <stephen.hurd@broadcom.com> CC: Ajit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: Santosh Shukla <santosh.shukla@caviumnetworks.com> Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
2017-01-18 01:21:29 +00:00
#include <rte_io.h>
net/bnxt: add completion ring Structures, macros, and functions for working with completion rings in the driver. Completion Ring is used by the Ethernet controller to provide the status of transmitted & received packets, report errors, report status changes to the host software, and inter-function forwarding requests. In addition to the generic ring features, a completion ring can have a statistics context that has statistics periodically DMAed to host memory, along with a consumer index. bnxt_handle_async_event() handles completions not related to a specific transmit or receive ring such as link status changes which arrive on the default completion ring. Other physical or virtual functions on the same device may send an HWRM command forward request. In this case, we will pass it through unvalidated. In the future, we will be able to have the PF monitor and control VF access to the HWRM interface if needed. New HWRM Calls: bnxt_hwrm_exec_fwd_resp: Execute an encapsulated command and forward the response. Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: Stephen Hurd <stephen.hurd@broadcom.com> Reviewed-by: David Christensen <david.christensen@broadcom.com>
2016-06-15 21:23:08 +00:00
#define CMP_VALID(cmp, raw_cons, ring) \
(!!(((struct cmpl_base *)(cmp))->info3_v & CMPL_BASE_V) == \
!((raw_cons) & ((ring)->ring_size)))
#define CMP_TYPE(cmp) \
(((struct cmpl_base *)cmp)->type & CMPL_BASE_TYPE_MASK)
#define ADV_RAW_CMP(idx, n) ((idx) + (n))
#define NEXT_RAW_CMP(idx) ADV_RAW_CMP(idx, 1)
#define RING_CMP(ring, idx) ((idx) & (ring)->ring_mask)
#define NEXT_CMP(idx) RING_CMP(ADV_RAW_CMP(idx, 1))
#define DB_CP_REARM_FLAGS (DB_KEY_CP | DB_IDX_VALID)
#define DB_CP_FLAGS (DB_KEY_CP | DB_IDX_VALID | DB_IRQ_DIS)
#define B_CP_DB_REARM(cpr, raw_cons) \
net/bnxt: use I/O device memory read/write API Replace the raw I/O device memory read/write access with eal abstraction for I/O device memory read/write access to fix portability issues across different architectures. CC: Stephen Hurd <stephen.hurd@broadcom.com> CC: Ajit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: Santosh Shukla <santosh.shukla@caviumnetworks.com> Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
2017-01-18 01:21:29 +00:00
rte_write32((DB_CP_REARM_FLAGS | \
RING_CMP(((cpr)->cp_ring_struct), raw_cons)), \
((cpr)->cp_doorbell))
net/bnxt: add completion ring Structures, macros, and functions for working with completion rings in the driver. Completion Ring is used by the Ethernet controller to provide the status of transmitted & received packets, report errors, report status changes to the host software, and inter-function forwarding requests. In addition to the generic ring features, a completion ring can have a statistics context that has statistics periodically DMAed to host memory, along with a consumer index. bnxt_handle_async_event() handles completions not related to a specific transmit or receive ring such as link status changes which arrive on the default completion ring. Other physical or virtual functions on the same device may send an HWRM command forward request. In this case, we will pass it through unvalidated. In the future, we will be able to have the PF monitor and control VF access to the HWRM interface if needed. New HWRM Calls: bnxt_hwrm_exec_fwd_resp: Execute an encapsulated command and forward the response. Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: Stephen Hurd <stephen.hurd@broadcom.com> Reviewed-by: David Christensen <david.christensen@broadcom.com>
2016-06-15 21:23:08 +00:00
#define B_CP_DIS_DB(cpr, raw_cons) \
net/bnxt: use I/O device memory read/write API Replace the raw I/O device memory read/write access with eal abstraction for I/O device memory read/write access to fix portability issues across different architectures. CC: Stephen Hurd <stephen.hurd@broadcom.com> CC: Ajit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: Santosh Shukla <santosh.shukla@caviumnetworks.com> Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
2017-01-18 01:21:29 +00:00
rte_write32((DB_CP_FLAGS | \
RING_CMP(((cpr)->cp_ring_struct), raw_cons)), \
((cpr)->cp_doorbell))
net/bnxt: add completion ring Structures, macros, and functions for working with completion rings in the driver. Completion Ring is used by the Ethernet controller to provide the status of transmitted & received packets, report errors, report status changes to the host software, and inter-function forwarding requests. In addition to the generic ring features, a completion ring can have a statistics context that has statistics periodically DMAed to host memory, along with a consumer index. bnxt_handle_async_event() handles completions not related to a specific transmit or receive ring such as link status changes which arrive on the default completion ring. Other physical or virtual functions on the same device may send an HWRM command forward request. In this case, we will pass it through unvalidated. In the future, we will be able to have the PF monitor and control VF access to the HWRM interface if needed. New HWRM Calls: bnxt_hwrm_exec_fwd_resp: Execute an encapsulated command and forward the response. Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: Stephen Hurd <stephen.hurd@broadcom.com> Reviewed-by: David Christensen <david.christensen@broadcom.com>
2016-06-15 21:23:08 +00:00
struct bnxt_ring;
struct bnxt_cp_ring_info {
uint32_t cp_raw_cons;
void *cp_doorbell;
struct cmpl_base *cp_desc_ring;
phys_addr_t cp_desc_mapping;
struct ctx_hw_stats *hw_stats;
phys_addr_t hw_stats_map;
uint32_t hw_stats_ctx_id;
struct bnxt_ring *cp_ring_struct;
};
#define RX_CMP_L2_ERRORS \
(RX_PKT_CMPL_ERRORS_BUFFER_ERROR_MASK | RX_PKT_CMPL_ERRORS_CRC_ERROR)
struct bnxt;
void bnxt_free_def_cp_ring(struct bnxt *bp);
net/bnxt: allocate Rx/Tx and completion rings Perform allocation and free()ing of ring and information structures for the TX, RX, and completion rings. The previous patches had so far provided top level stubs and generic ring support, while this patch does the real allocation and freeing of the memory specific to each different type of generic ring. For example bnxt_init_tx_ring_struct() or bnxt_init_rx_ring_struct() is now allocating memory based on the socked_id being provided. bnxt_tx_queue_setup_op() or bnxt_rx_queue_setup_op() have gone through some reformatting to perform a graceful cleanup in case memory allocation fails. Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: Stephen Hurd <stephen.hurd@broadcom.com> Reviewed-by: David Christensen <david.christensen@broadcom.com>
2016-06-15 21:23:15 +00:00
int bnxt_init_def_ring_struct(struct bnxt *bp, unsigned int socket_id);
net/bnxt: add completion ring Structures, macros, and functions for working with completion rings in the driver. Completion Ring is used by the Ethernet controller to provide the status of transmitted & received packets, report errors, report status changes to the host software, and inter-function forwarding requests. In addition to the generic ring features, a completion ring can have a statistics context that has statistics periodically DMAed to host memory, along with a consumer index. bnxt_handle_async_event() handles completions not related to a specific transmit or receive ring such as link status changes which arrive on the default completion ring. Other physical or virtual functions on the same device may send an HWRM command forward request. In this case, we will pass it through unvalidated. In the future, we will be able to have the PF monitor and control VF access to the HWRM interface if needed. New HWRM Calls: bnxt_hwrm_exec_fwd_resp: Execute an encapsulated command and forward the response. Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: Stephen Hurd <stephen.hurd@broadcom.com> Reviewed-by: David Christensen <david.christensen@broadcom.com>
2016-06-15 21:23:08 +00:00
void bnxt_handle_async_event(struct bnxt *bp, struct cmpl_base *cmp);
void bnxt_handle_fwd_req(struct bnxt *bp, struct cmpl_base *cmp);
#endif
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