xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net/smc: introduce better field names

Browse Source 
Field names "srv_first_contact" and "cln_first_contact" are misleading,
since they apply to both, server and client. Rename them to
"first_contact_peer" and "first_contact_local".
Rename "ism_gid" by the more precise name "ism_peer_gid".
Rename version constant "SMC_CLC_V1" into "SMC_V1".
No functional change.

Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ursula Braun
2020-09-10 18:48:21 +02:00
committed by David S. Miller
parent a60a2b1e0a
commit 5ac54d8768
6 changed files with 55 additions and 57 deletions
Download Patch File Download Diff File Expand all files Collapse all files

66
net/smc/af_smc.c
View File

@@ -523,11 +523,11 @@ static int smc_connect_decline_fallback(struct smc_sock *smc, int reason_code)
/* abort connecting */
static int smc_connect_abort(struct smc_sock *smc, int reason_code,
int local_contact)
int local_first)
{
bool is_smcd = smc->conn.lgr->is_smcd;
if (local_contact == SMC_FIRST_CONTACT)
if (local_first)
smc_lgr_cleanup_early(&smc->conn);
else
smc_conn_free(&smc->conn);
@@ -615,7 +615,7 @@ static int smc_connect_rdma(struct smc_sock *smc,
ini->is_smcd = false;
ini->ib_lcl = &aclc->lcl;
ini->ib_clcqpn = ntoh24(aclc->qpn);
ini->srv_first_contact = aclc->hdr.flag;
ini->first_contact_peer = aclc->hdr.flag;
mutex_lock(&smc_client_lgr_pending);
reason_code = smc_conn_create(smc, ini);
@@ -626,7 +626,7 @@ static int smc_connect_rdma(struct smc_sock *smc,
smc_conn_save_peer_info(smc, aclc);
if (ini->cln_first_contact == SMC_FIRST_CONTACT) {
if (ini->first_contact_local) {
link = smc->conn.lnk;
} else {
/* set link that was assigned by server */
@@ -643,51 +643,51 @@ static int smc_connect_rdma(struct smc_sock *smc,
}
if (!link)
return smc_connect_abort(smc, SMC_CLC_DECL_NOSRVLINK,
ini->cln_first_contact);
ini->first_contact_local);
smc->conn.lnk = link;
}
/* create send buffer and rmb */
if (smc_buf_create(smc, false))
return smc_connect_abort(smc, SMC_CLC_DECL_MEM,
ini->cln_first_contact);
ini->first_contact_local);
if (ini->cln_first_contact == SMC_FIRST_CONTACT)
if (ini->first_contact_local)
smc_link_save_peer_info(link, aclc);
if (smc_rmb_rtoken_handling(&smc->conn, link, aclc))
return smc_connect_abort(smc, SMC_CLC_DECL_ERR_RTOK,
ini->cln_first_contact);
ini->first_contact_local);
smc_close_init(smc);
smc_rx_init(smc);
if (ini->cln_first_contact == SMC_FIRST_CONTACT) {
if (ini->first_contact_local) {
if (smc_ib_ready_link(link))
return smc_connect_abort(smc, SMC_CLC_DECL_ERR_RDYLNK,
ini->cln_first_contact);
ini->first_contact_local);
} else {
if (smcr_lgr_reg_rmbs(link, smc->conn.rmb_desc))
return smc_connect_abort(smc, SMC_CLC_DECL_ERR_REGRMB,
ini->cln_first_contact);
ini->first_contact_local);
}
smc_rmb_sync_sg_for_device(&smc->conn);
reason_code = smc_clc_send_confirm(smc);
if (reason_code)
return smc_connect_abort(smc, reason_code,
ini->cln_first_contact);
ini->first_contact_local);
smc_tx_init(smc);
if (ini->cln_first_contact == SMC_FIRST_CONTACT) {
if (ini->first_contact_local) {
/* QP confirmation over RoCE fabric */
smc_llc_flow_initiate(link->lgr, SMC_LLC_FLOW_ADD_LINK);
reason_code = smcr_clnt_conf_first_link(smc);
smc_llc_flow_stop(link->lgr, &link->lgr->llc_flow_lcl);
if (reason_code)
return smc_connect_abort(smc, reason_code,
ini->cln_first_contact);
ini->first_contact_local);
}
mutex_unlock(&smc_client_lgr_pending);
@@ -707,8 +707,8 @@ static int smc_connect_ism(struct smc_sock *smc,
int rc = 0;
ini->is_smcd = true;
ini->ism_gid = aclc->gid;
ini->srv_first_contact = aclc->hdr.flag;
ini->ism_peer_gid = aclc->gid;
ini->first_contact_peer = aclc->hdr.flag;
/* there is only one lgr role for SMC-D; use server lock */
mutex_lock(&smc_server_lgr_pending);
@@ -724,7 +724,7 @@ static int smc_connect_ism(struct smc_sock *smc,
return smc_connect_abort(smc, (rc == -ENOSPC) ?
SMC_CLC_DECL_MAX_DMB :
SMC_CLC_DECL_MEM,
ini->cln_first_contact);
ini->first_contact_local);
smc_conn_save_peer_info(smc, aclc);
smc_close_init(smc);
@@ -733,7 +733,7 @@ static int smc_connect_ism(struct smc_sock *smc,
rc = smc_clc_send_confirm(smc);
if (rc)
return smc_connect_abort(smc, rc, ini->cln_first_contact);
return smc_connect_abort(smc, rc, ini->first_contact_local);
mutex_unlock(&smc_server_lgr_pending);
smc_copy_sock_settings_to_clc(smc);
@@ -1127,10 +1127,10 @@ static void smc_listen_out_err(struct smc_sock *new_smc)
/* listen worker: decline and fall back if possible */
static void smc_listen_decline(struct smc_sock *new_smc, int reason_code,
int local_contact)
bool local_first)
{
/* RDMA setup failed, switch back to TCP */
if (local_contact == SMC_FIRST_CONTACT)
if (local_first)
smc_lgr_cleanup_early(&new_smc->conn);
else
smc_conn_free(&new_smc->conn);
@@ -1190,7 +1190,7 @@ static int smc_listen_ism_init(struct smc_sock *new_smc,
int rc;
pclc_smcd = smc_get_clc_msg_smcd(pclc);
ini->ism_gid = pclc_smcd->gid;
ini->ism_peer_gid = pclc_smcd->gid;
rc = smc_conn_create(new_smc, ini);
if (rc)
return rc;
@@ -1199,7 +1199,7 @@ static int smc_listen_ism_init(struct smc_sock *new_smc,
if (smc_ism_cantalk(new_smc->conn.lgr->peer_gid,
new_smc->conn.lgr->vlan_id,
new_smc->conn.lgr->smcd)) {
if (ini->cln_first_contact == SMC_FIRST_CONTACT)
if (ini->first_contact_local)
smc_lgr_cleanup_early(&new_smc->conn);
else
smc_conn_free(&new_smc->conn);
@@ -1209,7 +1209,7 @@ static int smc_listen_ism_init(struct smc_sock *new_smc,
/* Create send and receive buffers */
rc = smc_buf_create(new_smc, true);
if (rc) {
if (ini->cln_first_contact == SMC_FIRST_CONTACT)
if (ini->first_contact_local)
smc_lgr_cleanup_early(&new_smc->conn);
else
smc_conn_free(&new_smc->conn);
@@ -1221,11 +1221,11 @@ static int smc_listen_ism_init(struct smc_sock *new_smc,
}
/* listen worker: register buffers */
static int smc_listen_rdma_reg(struct smc_sock *new_smc, int local_contact)
static int smc_listen_rdma_reg(struct smc_sock *new_smc, bool local_first)
{
struct smc_connection *conn = &new_smc->conn;
if (local_contact != SMC_FIRST_CONTACT) {
if (!local_first) {
if (smcr_lgr_reg_rmbs(conn->lnk, conn->rmb_desc))
return SMC_CLC_DECL_ERR_REGRMB;
}
@@ -1237,12 +1237,12 @@ static int smc_listen_rdma_reg(struct smc_sock *new_smc, int local_contact)
/* listen worker: finish RDMA setup */
static int smc_listen_rdma_finish(struct smc_sock *new_smc,
struct smc_clc_msg_accept_confirm *cclc,
int local_contact)
bool local_first)
{
struct smc_link *link = new_smc->conn.lnk;
int reason_code = 0;
if (local_contact == SMC_FIRST_CONTACT)
if (local_first)
smc_link_save_peer_info(link, cclc);
if (smc_rmb_rtoken_handling(&new_smc->conn, link, cclc)) {
@@ -1250,7 +1250,7 @@ static int smc_listen_rdma_finish(struct smc_sock *new_smc,
goto decline;
}
if (local_contact == SMC_FIRST_CONTACT) {
if (local_first) {
if (smc_ib_ready_link(link)) {
reason_code = SMC_CLC_DECL_ERR_RDYLNK;
goto decline;
@@ -1265,7 +1265,7 @@ static int smc_listen_rdma_finish(struct smc_sock *new_smc,
return 0;
decline:
smc_listen_decline(new_smc, reason_code, local_contact);
smc_listen_decline(new_smc, reason_code, local_first);
return reason_code;
}
@@ -1358,13 +1358,13 @@ static void smc_listen_work(struct work_struct *work)
rc = smc_listen_rdma_init(new_smc, &ini);
if (rc)
goto out_unlock;
rc = smc_listen_rdma_reg(new_smc, ini.cln_first_contact);
rc = smc_listen_rdma_reg(new_smc, ini.first_contact_local);
if (rc)
goto out_unlock;
}
/* send SMC Accept CLC message */
rc = smc_clc_send_accept(new_smc, ini.cln_first_contact);
rc = smc_clc_send_accept(new_smc, ini.first_contact_local);
if (rc)
goto out_unlock;
@@ -1384,7 +1384,7 @@ static void smc_listen_work(struct work_struct *work)
/* finish worker */
if (!ism_supported) {
rc = smc_listen_rdma_finish(new_smc, &cclc,
ini.cln_first_contact);
ini.first_contact_local);
mutex_unlock(&smc_server_lgr_pending);
if (rc)
return;
@@ -1396,7 +1396,7 @@ static void smc_listen_work(struct work_struct *work)
out_unlock:
mutex_unlock(&smc_server_lgr_pending);
out_decl:
smc_listen_decline(new_smc, rc, ini.cln_first_contact);
smc_listen_decline(new_smc, rc, ini.first_contact_local);
}
static void smc_tcp_listen_work(struct work_struct *work)