13 void spl2sw_rx_descs_flush(struct spl2sw_common *comm)  in spl2sw_rx_descs_flush()  argument
20 		rx_desc = comm->rx_desc[i];  in spl2sw_rx_descs_flush()
21 		rx_skbinfo = comm->rx_skb_info[i];  in spl2sw_rx_descs_flush()
22 		for (j = 0; j < comm->rx_desc_num[i]; j++) {  in spl2sw_rx_descs_flush()
24 			rx_desc[j].cmd2 = (j == comm->rx_desc_num[i] - 1) ?  in spl2sw_rx_descs_flush()
25 					  RXD_EOR | comm->rx_desc_buff_size :  in spl2sw_rx_descs_flush()
26 					  comm->rx_desc_buff_size;  in spl2sw_rx_descs_flush()
33 void spl2sw_tx_descs_clean(struct spl2sw_common *comm)  in spl2sw_tx_descs_clean()  argument
37 	if (!comm->tx_desc)  in spl2sw_tx_descs_clean()
41 		comm->tx_desc[i].cmd1 = 0;  in spl2sw_tx_descs_clean()
43 		comm->tx_desc[i].cmd2 = 0;  in spl2sw_tx_descs_clean()
44 		comm->tx_desc[i].addr1 = 0;  in spl2sw_tx_descs_clean()
45 		comm->tx_desc[i].addr2 = 0;  in spl2sw_tx_descs_clean()
47 		if (comm->tx_temp_skb_info[i].mapping) {  in spl2sw_tx_descs_clean()
48 			dma_unmap_single(&comm->pdev->dev, comm->tx_temp_skb_info[i].mapping,  in spl2sw_tx_descs_clean()
49 					 comm->tx_temp_skb_info[i].skb->len, DMA_TO_DEVICE);  in spl2sw_tx_descs_clean()
50 			comm->tx_temp_skb_info[i].mapping = 0;  in spl2sw_tx_descs_clean()
53 		if (comm->tx_temp_skb_info[i].skb) {  in spl2sw_tx_descs_clean()
54 			dev_kfree_skb_any(comm->tx_temp_skb_info[i].skb);  in spl2sw_tx_descs_clean()
55 			comm->tx_temp_skb_info[i].skb = NULL;  in spl2sw_tx_descs_clean()
60 void spl2sw_rx_descs_clean(struct spl2sw_common *comm)  in spl2sw_rx_descs_clean()  argument
67 		if (!comm->rx_skb_info[i])  in spl2sw_rx_descs_clean()
70 		rx_desc = comm->rx_desc[i];  in spl2sw_rx_descs_clean()
71 		rx_skbinfo = comm->rx_skb_info[i];  in spl2sw_rx_descs_clean()
72 		for (j = 0; j < comm->rx_desc_num[i]; j++) {  in spl2sw_rx_descs_clean()
79 				dma_unmap_single(&comm->pdev->dev, rx_skbinfo[j].mapping,  in spl2sw_rx_descs_clean()
80 						 comm->rx_desc_buff_size, DMA_FROM_DEVICE);  in spl2sw_rx_descs_clean()
88 		comm->rx_skb_info[i] = NULL;  in spl2sw_rx_descs_clean()
92 void spl2sw_descs_clean(struct spl2sw_common *comm)  in spl2sw_descs_clean()  argument
94 	spl2sw_rx_descs_clean(comm);  in spl2sw_descs_clean()
95 	spl2sw_tx_descs_clean(comm);  in spl2sw_descs_clean()
98 void spl2sw_descs_free(struct spl2sw_common *comm)  in spl2sw_descs_free()  argument
102 	spl2sw_descs_clean(comm);  in spl2sw_descs_free()
103 	comm->tx_desc = NULL;  in spl2sw_descs_free()
105 		comm->rx_desc[i] = NULL;  in spl2sw_descs_free()
108 	if (comm->desc_base) {  in spl2sw_descs_free()
109 		dma_free_coherent(&comm->pdev->dev, comm->desc_size, comm->desc_base,  in spl2sw_descs_free()
110 				  comm->desc_dma);  in spl2sw_descs_free()
111 		comm->desc_base = NULL;  in spl2sw_descs_free()
112 		comm->desc_dma = 0;  in spl2sw_descs_free()
113 		comm->desc_size = 0;  in spl2sw_descs_free()
117 void spl2sw_tx_descs_init(struct spl2sw_common *comm)  in spl2sw_tx_descs_init()  argument
119 	memset(comm->tx_desc, '\0', sizeof(struct spl2sw_mac_desc) *  in spl2sw_tx_descs_init()
123 int spl2sw_rx_descs_init(struct spl2sw_common *comm)  in spl2sw_rx_descs_init()  argument
132 		comm->rx_skb_info[i] = kcalloc(comm->rx_desc_num[i], sizeof(*rx_skbinfo),  in spl2sw_rx_descs_init()
134 		if (!comm->rx_skb_info[i])  in spl2sw_rx_descs_init()
137 		rx_skbinfo = comm->rx_skb_info[i];  in spl2sw_rx_descs_init()
138 		rx_desc = comm->rx_desc[i];  in spl2sw_rx_descs_init()
139 		for (j = 0; j < comm->rx_desc_num[i]; j++) {  in spl2sw_rx_descs_init()
140 			skb = netdev_alloc_skb(NULL, comm->rx_desc_buff_size);  in spl2sw_rx_descs_init()
145 			mapping = dma_map_single(&comm->pdev->dev, skb->data,  in spl2sw_rx_descs_init()
146 						 comm->rx_desc_buff_size,  in spl2sw_rx_descs_init()
148 			if (dma_mapping_error(&comm->pdev->dev, mapping))  in spl2sw_rx_descs_init()
154 			rx_desc[j].cmd2 = (j == comm->rx_desc_num[i] - 1) ?  in spl2sw_rx_descs_init()
155 					  RXD_EOR | comm->rx_desc_buff_size :  in spl2sw_rx_descs_init()
156 					  comm->rx_desc_buff_size;  in spl2sw_rx_descs_init()
165 	spl2sw_rx_descs_clean(comm);  in spl2sw_rx_descs_init()
169 int spl2sw_descs_alloc(struct spl2sw_common *comm)  in spl2sw_descs_alloc()  argument
177 		desc_size += comm->rx_desc_num[i] * sizeof(struct spl2sw_mac_desc);  in spl2sw_descs_alloc()
179 	comm->desc_base = dma_alloc_coherent(&comm->pdev->dev, desc_size, &comm->desc_dma,  in spl2sw_descs_alloc()
181 	if (!comm->desc_base)  in spl2sw_descs_alloc()
184 	comm->desc_size = desc_size;  in spl2sw_descs_alloc()
187 	comm->tx_desc = comm->desc_base;  in spl2sw_descs_alloc()
190 	comm->rx_desc[0] = &comm->tx_desc[TX_DESC_NUM + MAC_GUARD_DESC_NUM];  in spl2sw_descs_alloc()
192 		comm->rx_desc[i] = comm->rx_desc[i - 1] + comm->rx_desc_num[i - 1];  in spl2sw_descs_alloc()
197 int spl2sw_descs_init(struct spl2sw_common *comm)  in spl2sw_descs_init()  argument
202 	comm->rx_desc_num[0] = RX_QUEUE0_DESC_NUM;  in spl2sw_descs_init()
203 	comm->rx_desc_num[1] = RX_QUEUE1_DESC_NUM;  in spl2sw_descs_init()
206 		comm->rx_desc[i] = NULL;  in spl2sw_descs_init()
207 		comm->rx_skb_info[i] = NULL;  in spl2sw_descs_init()
208 		comm->rx_pos[i] = 0;  in spl2sw_descs_init()
210 	comm->rx_desc_buff_size = MAC_RX_LEN_MAX;  in spl2sw_descs_init()
213 	comm->tx_done_pos = 0;  in spl2sw_descs_init()
214 	comm->tx_desc = NULL;  in spl2sw_descs_init()
215 	comm->tx_pos = 0;  in spl2sw_descs_init()
216 	comm->tx_desc_full = 0;  in spl2sw_descs_init()
218 		comm->tx_temp_skb_info[i].skb = NULL;  in spl2sw_descs_init()
221 	ret = spl2sw_descs_alloc(comm);  in spl2sw_descs_init()
225 	spl2sw_tx_descs_init(comm);  in spl2sw_descs_init()
227 	return spl2sw_rx_descs_init(comm);  in spl2sw_descs_init()