scsi/bnx2fc/bnx2fc_tgt.c

22 static u32 bnx2fc_alloc_conn_id(struct bnx2fc_hba *hba,
24 static int bnx2fc_alloc_session_resc(struct bnx2fc_hba *hba,
26 static void bnx2fc_free_session_resc(struct bnx2fc_hba *hba,
28 static void bnx2fc_free_conn_id(struct bnx2fc_hba *hba, u32 conn_id);
86 	struct bnx2fc_hba *hba = interface->hba;
100 	rval = bnx2fc_alloc_session_resc(hba, tgt);
157 	bnx2fc_free_session_resc(hba, tgt);
160 		bnx2fc_free_conn_id(hba, tgt->fcoe_conn_id);
293 	struct bnx2fc_hba *hba = interface->hba;
299 	 * Called with hba->hba_mutex held.
324 		bnx2fc_send_session_destroy_req(hba, tgt);
344 	bnx2fc_free_session_resc(hba, tgt);
345 	bnx2fc_free_conn_id(hba, tgt->fcoe_conn_id);
355 	struct bnx2fc_hba *hba = interface->hba;
363 	if (hba->num_ofld_sess >= BNX2FC_NUM_MAX_SESS) {
369 	tgt->fcoe_conn_id = bnx2fc_alloc_conn_id(hba, tgt);
443 	struct bnx2fc_hba *hba = interface->hba;
483 		 * Offload process is protected with hba mutex.
486 		mutex_lock(&hba->hba_mutex);
492 			mutex_unlock(&hba->hba_mutex);
503 			hba->num_ofld_sess);
508 			/* This counter is protected with hba mutex */
509 			hba->num_ofld_sess++;
521 		mutex_unlock(&hba->hba_mutex);
536 		mutex_lock(&hba->hba_mutex);
544 			mutex_unlock(&hba->hba_mutex);
550 		hba->num_ofld_sess--;
552 			hba->num_ofld_sess);
557 		if ((hba->wait_for_link_down) &&
558 		    (hba->num_ofld_sess == 0)) {
559 			wake_up_interruptible(&hba->shutdown_wait);
561 		mutex_unlock(&hba->hba_mutex);
580 	struct bnx2fc_hba *hba = interface->hba;
586 		tgt = hba->tgt_ofld_list[i];
610  * @hba:	pointer to adapter structure
613 static u32 bnx2fc_alloc_conn_id(struct bnx2fc_hba *hba,
618 	/* called with hba mutex held */
622 	 * both hba mutex and hba lock. Atleast hba mutex or
623 	 * hba lock needs to be held for read access.
626 	spin_lock_bh(&hba->hba_lock);
627 	next = hba->next_conn_id;
628 	conn_id = hba->next_conn_id++;
629 	if (hba->next_conn_id == BNX2FC_NUM_MAX_SESS)
630 		hba->next_conn_id = 0;
632 	while (hba->tgt_ofld_list[conn_id] != NULL) {
639 			spin_unlock_bh(&hba->hba_lock);
643 	hba->tgt_ofld_list[conn_id] = tgt;
645 	spin_unlock_bh(&hba->hba_lock);
649 static void bnx2fc_free_conn_id(struct bnx2fc_hba *hba, u32 conn_id)
651 	/* called with hba mutex held */
652 	spin_lock_bh(&hba->hba_lock);
653 	hba->tgt_ofld_list[conn_id] = NULL;
654 	spin_unlock_bh(&hba->hba_lock);
660 static int bnx2fc_alloc_session_resc(struct bnx2fc_hba *hba,
672 	tgt->sq = dma_alloc_coherent(&hba->pcidev->dev, tgt->sq_mem_size,
685 	tgt->cq = dma_alloc_coherent(&hba->pcidev->dev, tgt->cq_mem_size,
698 	tgt->rq = dma_alloc_coherent(&hba->pcidev->dev, tgt->rq_mem_size,
710 	tgt->rq_pbl = dma_alloc_coherent(&hba->pcidev->dev, tgt->rq_pbl_size,
735 	tgt->xferq = dma_alloc_coherent(&hba->pcidev->dev,
749 	tgt->confq = dma_alloc_coherent(&hba->pcidev->dev,
763 	tgt->confq_pbl = dma_alloc_coherent(&hba->pcidev->dev,
787 	tgt->conn_db = dma_alloc_coherent(&hba->pcidev->dev,
802 	tgt->lcq = dma_alloc_coherent(&hba->pcidev->dev, tgt->lcq_mem_size,
822  * @hba:	adapter structure pointer
827 static void bnx2fc_free_session_resc(struct bnx2fc_hba *hba,
839 		dma_free_coherent(&hba->pcidev->dev, tgt->lcq_mem_size,
845 		dma_free_coherent(&hba->pcidev->dev, tgt->conn_db_mem_size,
851 		dma_free_coherent(&hba->pcidev->dev, tgt->confq_pbl_size,
856 		dma_free_coherent(&hba->pcidev->dev, tgt->confq_mem_size,
862 		dma_free_coherent(&hba->pcidev->dev, tgt->xferq_mem_size,
868 		dma_free_coherent(&hba->pcidev->dev, tgt->rq_pbl_size,
873 		dma_free_coherent(&hba->pcidev->dev, tgt->rq_mem_size,
879 		dma_free_coherent(&hba->pcidev->dev, tgt->cq_mem_size,
885 		dma_free_coherent(&hba->pcidev->dev, tgt->sq_mem_size,