From: Jens Remus <jremus@xxxxxxxxxxxxx>
The comment on fsf_qtcb_bottom_port.supported_speed did read as if the
field can only assume one of two possible values (i.e. 0x1 for 1 GBit/s or
0x2 for 2 GBit/s). This is not true for two reasons: first it is a flag
field and can thus assume any combination and second there are meanwhile
more speeds.
Clarify comment on fsf_qtcb_bottom_port.supported_speed and add a comment
to fsf_qtcb_bottom_config.fc_link_speed.
Signed-off-by: Jens Remus <jremus@xxxxxxxxxxxxx>
Reviewed-by: Steffen Maier <maier@xxxxxxxxxxxxx>
Reviewed-by: Fedor Loshakov <loshakov@xxxxxxxxxxxxx>
Acked-by: Benjamin Block <bblock@xxxxxxxxxxxxx>
Acked-by: Hendrik Brueckner <brueckner@xxxxxxxxxxxxx>
Signed-off-by: Steffen Maier <maier@xxxxxxxxxxxxx>
---
drivers/s390/scsi/zfcp_fsf.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/s390/scsi/zfcp_fsf.h b/drivers/s390/scsi/zfcp_fsf.h
index 4baca67aba6d..535628b92f0a 100644
--- a/drivers/s390/scsi/zfcp_fsf.h
+++ b/drivers/s390/scsi/zfcp_fsf.h
@@ -4,7 +4,7 @@
*
* Interface to the FSF support functions.
*
- * Copyright IBM Corp. 2002, 2017
+ * Copyright IBM Corp. 2002, 2018
*/
#ifndef FSF_H
@@ -356,7 +356,7 @@ struct fsf_qtcb_bottom_config {
u32 adapter_features;
u32 connection_features;
u32 fc_topology;
- u32 fc_link_speed;
+ u32 fc_link_speed; /* one of ZFCP_FSF_PORTSPEED_* */
u32 adapter_type;
u8 res0;
u8 peer_d_id[3];
@@ -382,7 +382,7 @@ struct fsf_qtcb_bottom_port {
u32 class_of_service; /* should be 0x00000006 for class 2 and 3 */
u8 supported_fc4_types[32]; /* should be 0x00000100 for scsi fcp */
u8 active_fc4_types[32];
- u32 supported_speed; /* 0x0001 for 1 GBit/s or 0x0002 for 2 GBit/s */
+ u32 supported_speed; /* any combination of ZFCP_FSF_PORTSPEED_* */
u32 maximum_frame_size; /* fixed value of 2112 */
u64 seconds_since_last_reset;
u64 tx_frames;
--
2.16.3
--
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