net/smc/smc_core.h

1 /* SPDX-License-Identifier: GPL-2.0 */
3  * Shared Memory Communications over RDMA (SMC-R) and RoCE
29 					 * also is the default value for SMC-R v1 and v2.0
32 					 * SMC-R v2.1 and later negotiation, vendors or
34 					 * 16-255 as needed.
95 	struct smc_ib_device	*smcibdev;	/* ib-device */
96 	u8			ibport;		/* port - values 1 | 2 */
125 	struct smc_wr_buf	*wr_rx_bufs;	/* WR recv payload buffers */
126 	struct ib_recv_wr	*wr_rx_ibs;	/* WR recv meta data */
127 	struct ib_sge		*wr_rx_sges;	/* WR recv scatter meta data */
131 	u64			wr_rx_id;	/* seq # of last recv WR */
133 	u32			wr_rx_cnt;	/* number of WR recv buffers */
135 	wait_queue_head_t       wr_rx_empty_wait; /* wait for RQ empty */
180 					 * default value for smc-r v1.0 and v2.0
183 						 * SMC-R v2.1 and later negotiation, vendors or
185 						 * 1-2 as needed.
196 		struct { /* SMC-R */
219 		struct { /* SMC-D */
252 enum smcr_buf_type {		/* types of SMC-R sndbufs and RMBs */
294 	bool			is_smcd;	/* SMC-R or SMC-D */
301 		struct { /* SMC-R */
307 						/* WR v2 recv payload buffer */
359 		struct { /* SMC-D */
398 				/* max # of proposed non-native ISM devices,
399 				 * which can't exceed the max # of CHID-GID
400 				 * entries in CLC proposal SMC-Dv2 extension.
415 	/* SMC-R */
426 	/* SMC-D */
448 	node = lgr->conns_all.rb_node;  in smc_lgr_find_conn()
453 		if (cur->alert_token_local > token) {  in smc_lgr_find_conn()
454 			node = node->rb_left;  in smc_lgr_find_conn()
456 			if (cur->alert_token_local < token) {  in smc_lgr_find_conn()
457 				node = node->rb_right;  in smc_lgr_find_conn()
470 	return conn->lgr && conn->alert_token_local;  in smc_conn_lgr_valid()
482 	if (lnk->state == SMC_LNK_UNUSED || lnk->state == SMC_LNK_INACTIVE)  in smc_link_usable()
499 		lnk->qp_attr.cur_qp_state == IB_QPS_RTS;  in smc_link_sendable()
504 	return lnk->state == SMC_LNK_ACTIVE;  in smc_link_active()
531 	smc_dev->pci_vendor = pci_dev->vendor;  in smc_set_pci_values()
532 	smc_dev->pci_device = pci_dev->device;  in smc_set_pci_values()
533 	snprintf(smc_dev->pci_id, sizeof(smc_dev->pci_id), "%s",  in smc_set_pci_values()
540 	smc_dev->pci_fid = zdev->fid;  in smc_set_pci_values()
541 	smc_dev->pci_pchid = zdev->pchid;  in smc_set_pci_values()
602 	return link->lgr;  in smc_get_lgr()