qat_kernel/src/qat_transport.c

95 	struct adf_etr_ring_data *ring = trans_handle;
97 	ICP_CHECK_FOR_NULL_PARAM(ring);
98 	adf_remove_ring(ring);
115  * get ring number from a transport handle
120 	struct adf_etr_ring_data *ring = trans_handle;
122 	ICP_CHECK_FOR_NULL_PARAM(ring);
124 	*ringNum = (uint32_t)(ring->ring_number);
139 	struct adf_etr_ring_data *ring = trans_handle;
143 	ICP_CHECK_FOR_NULL_PARAM(ring);
145 	error = adf_send_message(ring, inBuf);
161 	struct adf_etr_ring_data *ring = trans_handle;
162 	ICP_CHECK_FOR_NULL_PARAM(ring);
169 	*numInflightRequests = (*(uint32_t *)ring->inflights);
171 	    ADF_MAX_INFLIGHTS(ring->ring_size, ring->msg_size);
190  * This function allows the user to poll the response ring. The
191  * ring number to be polled is supplied by the user via the
192  * trans handle for that ring. The trans_hnd is a pointer
193  * to an array of trans handles. This ring is
197  * This function will return RETRY if the ring is empty.
206 	struct adf_etr_ring_data *ring = NULL;
213 		ring = trans_hnd[i];
214 		if (!ring)
216 		bank = ring->bank;
218 		/* If the ring in question is empty try the next ring.*/
223 		num_resp = adf_handle_response(ring, response_quota);
236  * This function allows the user to check the response ring. The
237  * ring number to be polled is supplied by the user via the
238  * trans handle for that ring. The trans_hnd is a pointer
287  * Data plane support function - returns the pointer to next message on the ring
295 	struct adf_etr_ring_data *ring = trans_handle;
298 	ICP_CHECK_FOR_NULL_PARAM_VOID(ring);
300 	/* Check if there is enough space in the ring */
301 	flight = atomic_add_return(numberRequests, ring->inflights);
302 	if (flight > ADF_MAX_INFLIGHTS(ring->ring_size, ring->msg_size)) {
303 		atomic_sub(numberRequests, ring->inflights);
309 	*pCurrentQatMsg = (void *)((uintptr_t)ring->base_addr + ring->tail);
314  * Data plane support function - returns the pointer to next message on the ring
321 	struct adf_etr_ring_data *ring = trans_handle;
324 	ICP_CHECK_FOR_NULL_PARAM_VOID(ring);
327 	/* Check if there is enough space in the ring */
328 	flight = atomic_add_return(1, ring->inflights);
329 	if (flight > ADF_MAX_INFLIGHTS(ring->ring_size, ring->msg_size)) {
330 		atomic_dec(ring->inflights);
336 	*pCurrentQatMsg = (void *)((uintptr_t)ring->base_addr + ring->tail);
339 	ring->tail =
340 	    adf_modulo(ring->tail + ADF_MSG_SIZE_TO_BYTES(ring->msg_size),
341 		       ADF_RING_SIZE_MODULO(ring->ring_size));
347  * the pointer to next message on the ring.
352 	struct adf_etr_ring_data *ring = trans_handle;
354 	ICP_CHECK_FOR_NULL_PARAM_VOID(ring);
358 	ring->tail =
359 	    adf_modulo(ring->tail + ADF_MSG_SIZE_TO_BYTES(ring->msg_size),
360 		       ADF_RING_SIZE_MODULO(ring->ring_size));
363 	*pCurrentQatMsg = (void *)((uintptr_t)ring->base_addr + ring->tail);
373 	struct adf_etr_ring_data *ring = trans_handle;
376 	ICP_CHECK_FOR_NULL_PARAM_VOID(ring);
377 	ICP_CHECK_FOR_NULL_PARAM_VOID(ring->bank);
378 	ICP_CHECK_FOR_NULL_PARAM_VOID(ring->bank->accel_dev);
380 	csr_ops = GET_CSR_OPS(ring->bank->accel_dev);
384 	csr_ops->write_csr_ring_tail(ring->bank->csr_addr,
385 				     ring->bank->bank_number,
386 				     ring->ring_number,
387 				     ring->tail);
388 	ring->csr_tail_offset = ring->tail;
399 	struct adf_etr_ring_data *ring = trans_handle;
401 	ICP_CHECK_FOR_NULL_PARAM(ring);
403 	num_resp = adf_handle_response(ring, response_quota);
413  * Data-plane support function - Indicates if there is data on the ring to be
415  * true then it is ok to call icp_adf_updateQueueTail() function on this ring.
420 	struct adf_etr_ring_data *ring = trans_handle;
422 	if (ring->tail != ring->csr_tail_offset)