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Diffstat (limited to 'drivers/message/fusion/mptfc.c')
-rw-r--r--drivers/message/fusion/mptfc.c92
1 files changed, 38 insertions, 54 deletions
diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c
index 90da7d63b08e..85696f34c310 100644
--- a/drivers/message/fusion/mptfc.c
+++ b/drivers/message/fusion/mptfc.c
@@ -669,7 +669,10 @@ mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
669 * if still doing discovery, 669 * if still doing discovery,
670 * hang loose a while until finished 670 * hang loose a while until finished
671 */ 671 */
672 if (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) { 672 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) ||
673 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE &&
674 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK)
675 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) {
673 if (count-- > 0) { 676 if (count-- > 0) {
674 msleep(100); 677 msleep(100);
675 goto try_again; 678 goto try_again;
@@ -895,59 +898,45 @@ mptfc_rescan_devices(void *arg)
895{ 898{
896 MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg; 899 MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg;
897 int ii; 900 int ii;
898 int work_to_do;
899 u64 pn; 901 u64 pn;
900 unsigned long flags;
901 struct mptfc_rport_info *ri; 902 struct mptfc_rport_info *ri;
902 903
903 do { 904 /* start by tagging all ports as missing */
904 /* start by tagging all ports as missing */ 905 list_for_each_entry(ri, &ioc->fc_rports, list) {
905 list_for_each_entry(ri, &ioc->fc_rports, list) { 906 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
906 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 907 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
907 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
908 }
909 } 908 }
909 }
910 910
911 /* 911 /*
912 * now rescan devices known to adapter, 912 * now rescan devices known to adapter,
913 * will reregister existing rports 913 * will reregister existing rports
914 */ 914 */
915 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 915 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
916 (void) mptfc_GetFcPortPage0(ioc, ii); 916 (void) mptfc_GetFcPortPage0(ioc, ii);
917 mptfc_init_host_attr(ioc,ii); /* refresh */ 917 mptfc_init_host_attr(ioc, ii); /* refresh */
918 mptfc_GetFcDevPage0(ioc,ii,mptfc_register_dev); 918 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev);
919 } 919 }
920 920
921 /* delete devices still missing */ 921 /* delete devices still missing */
922 list_for_each_entry(ri, &ioc->fc_rports, list) { 922 list_for_each_entry(ri, &ioc->fc_rports, list) {
923 /* if newly missing, delete it */ 923 /* if newly missing, delete it */
924 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) { 924 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
925 925
926 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED| 926 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
927 MPT_RPORT_INFO_FLAGS_MISSING); 927 MPT_RPORT_INFO_FLAGS_MISSING);
928 fc_remote_port_delete(ri->rport); /* won't sleep */ 928 fc_remote_port_delete(ri->rport); /* won't sleep */
929 ri->rport = NULL; 929 ri->rport = NULL;
930 930
931 pn = (u64)ri->pg0.WWPN.High << 32 | 931 pn = (u64)ri->pg0.WWPN.High << 32 |
932 (u64)ri->pg0.WWPN.Low; 932 (u64)ri->pg0.WWPN.Low;
933 dfcprintk ((MYIOC_s_INFO_FMT 933 dfcprintk ((MYIOC_s_INFO_FMT
934 "mptfc_rescan.%d: %llx deleted\n", 934 "mptfc_rescan.%d: %llx deleted\n",
935 ioc->name, 935 ioc->name,
936 ioc->sh->host_no, 936 ioc->sh->host_no,
937 (unsigned long long)pn)); 937 (unsigned long long)pn));
938 }
939 } 938 }
940 939 }
941 /*
942 * allow multiple passes as target state
943 * might have changed during scan
944 */
945 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
946 if (ioc->fc_rescan_work_count > 2) /* only need one more */
947 ioc->fc_rescan_work_count = 2;
948 work_to_do = --ioc->fc_rescan_work_count;
949 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
950 } while (work_to_do);
951} 940}
952 941
953static int 942static int
@@ -1159,7 +1148,6 @@ mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1159 * by doing it via the workqueue, some locking is eliminated 1148 * by doing it via the workqueue, some locking is eliminated
1160 */ 1149 */
1161 1150
1162 ioc->fc_rescan_work_count = 1;
1163 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work); 1151 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work);
1164 flush_workqueue(ioc->fc_rescan_work_q); 1152 flush_workqueue(ioc->fc_rescan_work_q);
1165 1153
@@ -1202,10 +1190,8 @@ mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
1202 case MPI_EVENT_RESCAN: 1190 case MPI_EVENT_RESCAN:
1203 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1191 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1204 if (ioc->fc_rescan_work_q) { 1192 if (ioc->fc_rescan_work_q) {
1205 if (ioc->fc_rescan_work_count++ == 0) { 1193 queue_work(ioc->fc_rescan_work_q,
1206 queue_work(ioc->fc_rescan_work_q, 1194 &ioc->fc_rescan_work);
1207 &ioc->fc_rescan_work);
1208 }
1209 } 1195 }
1210 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1196 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1211 break; 1197 break;
@@ -1248,10 +1234,8 @@ mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
1248 mptfc_SetFcPortPage1_defaults(ioc); 1234 mptfc_SetFcPortPage1_defaults(ioc);
1249 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1235 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
1250 if (ioc->fc_rescan_work_q) { 1236 if (ioc->fc_rescan_work_q) {
1251 if (ioc->fc_rescan_work_count++ == 0) { 1237 queue_work(ioc->fc_rescan_work_q,
1252 queue_work(ioc->fc_rescan_work_q, 1238 &ioc->fc_rescan_work);
1253 &ioc->fc_rescan_work);
1254 }
1255 } 1239 }
1256 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1240 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
1257 } 1241 }