net/smc: adapt SMC remote DELETE_RKEY processing to use the LLC flow (218b24fe) · Commits · 戴 / test

net/smc/smc_llc.c

+24 −13

Original line number	Diff line number	Diff line
		@@ -601,31 +601,37 @@ out:
		smc_llc_flow_qentry_del(&lgr->llc_flow_rmt);
		}

		static void smc_llc_rx_confirm_rkey_cont(struct smc_link *link,
		struct smc_llc_msg_confirm_rkey_cont *llc)
		{
		/* ignore rtokens for other links, we have only one link */
		llc->hd.flags \|= SMC_LLC_FLAG_RESP;
		smc_llc_send_message(link, llc);
		}

		static void smc_llc_rx_delete_rkey(struct smc_link *link,
		struct smc_llc_msg_delete_rkey *llc)
		/* process a delete_rkey request from peer, remote flow */
		static void smc_llc_rmt_delete_rkey(struct smc_link_group *lgr)
		{
		struct smc_llc_msg_delete_rkey *llc;
		struct smc_llc_qentry *qentry;
		struct smc_link *link;
		u8 err_mask = 0;
		int i, max;

		qentry = lgr->llc_flow_rmt.qentry;
		llc = &qentry->msg.delete_rkey;
		link = qentry->link;

		max = min_t(u8, llc->num_rkeys, SMC_LLC_DEL_RKEY_MAX);
		for (i = 0; i < max; i++) {
		if (smc_rtoken_delete(link, llc->rkey[i]))
		err_mask \|= 1 << (SMC_LLC_DEL_RKEY_MAX - 1 - i);
		}

		if (err_mask) {
		llc->hd.flags \|= SMC_LLC_FLAG_RKEY_NEG;
		llc->err_mask = err_mask;
		}
		llc->hd.flags \|= SMC_LLC_FLAG_RESP;
		smc_llc_send_message(link, &qentry->msg);
		smc_llc_flow_qentry_del(&lgr->llc_flow_rmt);
		}

		static void smc_llc_rx_confirm_rkey_cont(struct smc_link *link,
		struct smc_llc_msg_confirm_rkey_cont *llc)
		{
		/* ignore rtokens for other links, we have only one link */
		llc->hd.flags \|= SMC_LLC_FLAG_RESP;
		smc_llc_send_message(link, llc);
		}
		@@ -698,8 +704,13 @@ static void smc_llc_event_handler(struct smc_llc_qentry *qentry)
		smc_llc_rx_confirm_rkey_cont(link, &llc->confirm_rkey_cont);
		break;
		case SMC_LLC_DELETE_RKEY:
		smc_llc_rx_delete_rkey(link, &llc->delete_rkey);
		break;
		/* new request from remote, assign to remote flow */
		if (smc_llc_flow_start(&lgr->llc_flow_rmt, qentry)) {
		/* process here, does not wait for more llc msgs */
		smc_llc_rmt_delete_rkey(lgr);
		smc_llc_flow_stop(lgr, &lgr->llc_flow_rmt);
		}
		return;
		}
		out:
		kfree(qentry);

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