1 // SPDX-License-Identifier: GPL-2.0-only
5  * Copyright (C) 2022-2023 SolidRun
7  * Author: Alvaro Karsz <alvaro.karsz@solid-run.com>
29 #define SNET_VAL_TO_ERR(val)		(-(((val) & SNET_CTRL_ERROR_MASK) >> 18))
64 	return snet->bar + snet->psnet->cfg.ctrl_off;  in snet_get_ctrl()
71 	return readx_poll_timeout(ioread32, &regs->ctrl, val, SNET_EMPTY_CTRL(val), 10,  in snet_wait_for_empty_ctrl()
79 	return readx_poll_timeout(ioread32, &regs->op, val, !val, 10, SNET_CTRL_TIMEOUT);  in snet_wait_for_empty_op()
86 	return readx_poll_timeout(ioread32, &regs->ctrl, val, SNET_DATA_READY(val), 10,  in snet_wait_for_data()
92 	return ioread32(&ctrl_regs->data[word_idx]);  in snet_read32_word()
97 	return ioread32(&ctrl_regs->ctrl);  in snet_read_ctrl()
102 	iowrite32(val, &ctrl_regs->ctrl);  in snet_write_ctrl()
107 	iowrite32(val, &ctrl_regs->op);  in snet_write_op()
135 	struct pci_dev *pdev = snet->pdev;  in snet_ctrl_read_from_dpu()
145 		return -EOPNOTSUPP;  in snet_ctrl_read_from_dpu()
148 		return -EINVAL;  in snet_ctrl_read_from_dpu()
150 	mutex_lock(&snet->ctrl_lock);  in snet_ctrl_read_from_dpu()
165 	spin_lock(&snet->ctrl_spinlock);  in snet_ctrl_read_from_dpu()
170 	spin_unlock(&snet->ctrl_spinlock);  in snet_ctrl_read_from_dpu()
188 		words = min_t(u16, val & SNET_CTRL_DATA_SIZE_MASK, buf_words - tot_words);  in snet_ctrl_read_from_dpu()
211 	mutex_unlock(&snet->ctrl_lock);  in snet_ctrl_read_from_dpu()
220 	struct pci_dev *pdev = snet->pdev;  in snet_send_ctrl_msg_old()
224 	mutex_lock(&snet->ctrl_lock);  in snet_send_ctrl_msg_old()
245 	mutex_unlock(&snet->ctrl_lock);  in snet_send_ctrl_msg_old()
254 	struct pci_dev *pdev = snet->pdev;  in snet_send_ctrl_msg()
263 	mutex_lock(&snet->ctrl_lock);  in snet_send_ctrl_msg()
276 	spin_lock(&snet->ctrl_spinlock);  in snet_send_ctrl_msg()
281 	spin_unlock(&snet->ctrl_spinlock);  in snet_send_ctrl_msg()
306 	mutex_unlock(&snet->ctrl_lock);  in snet_send_ctrl_msg()
322 int snet_read_vq_state(struct snet *snet, u16 idx, struct vdpa_vq_state *state)  in snet_read_vq_state()  argument
324 	return snet_ctrl_read_from_dpu(snet, SNET_CTRL_OP_READ_VQ_STATE, idx, state,  in snet_read_vq_state()
325 				       sizeof(*state));  in snet_read_vq_state()