From 7444111408ba9a00e40fcc9318b8ae83cac76735 Mon Sep 17 00:00:00 2001 From: Adam Dybkowski Date: Thu, 26 Mar 2020 17:22:07 +0100 Subject: [PATCH] common/qat: get firmware version This patch adds the function for retrieving QAT firmware version, required to check the internal capabilities that depend on the FW version. Signed-off-by: Adam Dybkowski Acked-by: Fiona Trahe --- drivers/common/qat/qat_adf/icp_qat_fw.h | 2 + drivers/common/qat/qat_qp.c | 93 +++++++++++++++++++++++++ drivers/common/qat/qat_qp.h | 3 + 3 files changed, 98 insertions(+) diff --git a/drivers/common/qat/qat_adf/icp_qat_fw.h b/drivers/common/qat/qat_adf/icp_qat_fw.h index 1265c2a138..be10fc9bde 100644 --- a/drivers/common/qat/qat_adf/icp_qat_fw.h +++ b/drivers/common/qat/qat_adf/icp_qat_fw.h @@ -121,6 +121,8 @@ struct icp_qat_fw_comn_resp { #define ICP_QAT_FW_COMN_CNV_FLAG_MASK 0x1 #define ICP_QAT_FW_COMN_CNVNR_FLAG_BITPOS 5 #define ICP_QAT_FW_COMN_CNVNR_FLAG_MASK 0x1 +#define ICP_QAT_FW_COMN_NULL_VERSION_FLAG_BITPOS 0 +#define ICP_QAT_FW_COMN_NULL_VERSION_FLAG_MASK 0x1 #define ICP_QAT_FW_COMN_OV_SRV_TYPE_GET(icp_qat_fw_comn_req_hdr_t) \ icp_qat_fw_comn_req_hdr_t.service_type diff --git a/drivers/common/qat/qat_qp.c b/drivers/common/qat/qat_qp.c index b0a2064344..eb1da7243d 100644 --- a/drivers/common/qat/qat_qp.c +++ b/drivers/common/qat/qat_qp.c @@ -3,6 +3,7 @@ */ #include +#include #include #include #include @@ -19,6 +20,7 @@ #include "qat_comp.h" #include "adf_transport_access_macros.h" +#define QAT_CQ_MAX_DEQ_RETRIES 10 #define ADF_MAX_DESC 4096 #define ADF_MIN_DESC 128 @@ -698,6 +700,97 @@ qat_dequeue_op_burst(void *qp, void **ops, uint16_t nb_ops) return resp_counter; } +/* This is almost same as dequeue_op_burst, without the atomic, without stats + * and without the op. Dequeues one response. + */ +static uint8_t +qat_cq_dequeue_response(struct qat_qp *qp, void *out_data) +{ + uint8_t result = 0; + uint8_t retries = 0; + struct qat_queue *queue = &(qp->rx_q); + struct icp_qat_fw_comn_resp *resp_msg = (struct icp_qat_fw_comn_resp *) + ((uint8_t *)queue->base_addr + queue->head); + + while (retries++ < QAT_CQ_MAX_DEQ_RETRIES && + *(uint32_t *)resp_msg == ADF_RING_EMPTY_SIG) { + /* loop waiting for response until we reach the timeout */ + rte_delay_ms(20); + } + + if (*(uint32_t *)resp_msg != ADF_RING_EMPTY_SIG) { + /* response received */ + result = 1; + + /* check status flag */ + if (ICP_QAT_FW_COMN_RESP_CRYPTO_STAT_GET( + resp_msg->comn_hdr.comn_status) == + ICP_QAT_FW_COMN_STATUS_FLAG_OK) { + /* success */ + memcpy(out_data, resp_msg, queue->msg_size); + } else { + memset(out_data, 0, queue->msg_size); + } + + queue->head = adf_modulo(queue->head + queue->msg_size, + queue->modulo_mask); + rxq_free_desc(qp, queue); + } + + return result; +} + +/* Sends a NULL message and extracts QAT fw version from the response. + * Used to determine detailed capabilities based on the fw version number. + * This assumes that there are no inflight messages, i.e. assumes there's space + * on the qp, one message is sent and only one response collected. + * Returns fw version number or 0 for unknown version or a negative error code. + */ +int +qat_cq_get_fw_version(struct qat_qp *qp) +{ + struct qat_queue *queue = &(qp->tx_q); + uint8_t *base_addr = (uint8_t *)queue->base_addr; + struct icp_qat_fw_comn_req null_msg; + struct icp_qat_fw_comn_resp response; + + /* prepare the NULL request */ + memset(&null_msg, 0, sizeof(null_msg)); + null_msg.comn_hdr.hdr_flags = + ICP_QAT_FW_COMN_HDR_FLAGS_BUILD(ICP_QAT_FW_COMN_REQ_FLAG_SET); + null_msg.comn_hdr.service_type = ICP_QAT_FW_COMN_REQ_NULL; + null_msg.comn_hdr.service_cmd_id = ICP_QAT_FW_NULL_REQ_SERV_ID; + +#if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG + QAT_DP_HEXDUMP_LOG(DEBUG, "NULL request", &null_msg, sizeof(null_msg)); +#endif + + /* send the NULL request */ + memcpy(base_addr + queue->tail, &null_msg, sizeof(null_msg)); + queue->tail = adf_modulo(queue->tail + queue->msg_size, + queue->modulo_mask); + txq_write_tail(qp, queue); + + /* receive a response */ + if (qat_cq_dequeue_response(qp, &response)) { + +#if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG + QAT_DP_HEXDUMP_LOG(DEBUG, "NULL response:", &response, + sizeof(response)); +#endif + /* if LW0 bit 24 is set - then the fw version was returned */ + if (QAT_FIELD_GET(response.comn_hdr.hdr_flags, + ICP_QAT_FW_COMN_NULL_VERSION_FLAG_BITPOS, + ICP_QAT_FW_COMN_NULL_VERSION_FLAG_MASK)) + return response.resrvd[0]; /* return LW4 */ + else + return 0; /* not set - we don't know fw version */ + } + + QAT_LOG(ERR, "No response received"); + return -EINVAL; +} + __rte_weak int qat_comp_process_response(void **op __rte_unused, uint8_t *resp __rte_unused, void *op_cookie __rte_unused, diff --git a/drivers/common/qat/qat_qp.h b/drivers/common/qat/qat_qp.h index 0d6896d7bd..88d3c99425 100644 --- a/drivers/common/qat/qat_qp.h +++ b/drivers/common/qat/qat_qp.h @@ -104,6 +104,9 @@ int qat_qps_per_service(const struct qat_qp_hw_data *qp_hw_data, enum qat_service_type service); +int +qat_cq_get_fw_version(struct qat_qp *qp); + /* Needed for weak function*/ int qat_comp_process_response(void **op __rte_unused, uint8_t *resp __rte_unused, -- 2.20.1