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authorStefan Richter <stefanr@s5r6.in-berlin.de>2009-01-19 21:19:55 +0300
committerStefan Richter <stefanr@s5r6.in-berlin.de>2009-01-28 22:31:05 +0300
commit82d4b90debaa7ab3590335c1b641eb3d2ebb164e (patch)
treee9144ff7c90b48a82ca057bcf7e1f294a9e72115 /drivers/ieee1394/ieee1394_core.c
parente747a5c0be3efe5465e45c8e326bc766b1288be6 (diff)
downloadlinux-82d4b90debaa7ab3590335c1b641eb3d2ebb164e.tar.xz
ieee1394: support for speeds greater than S800
The hard-wired configuration of the top speed (until now S800) was unnecessary, remove it. If the local link layer controller supports S1600 or S3200, we now assume this speed for all present 1394b PHYs (except if they are behind 1394a repeaters) until nodemgr figured out the actual speed while fetching the config ROM. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/ieee1394/ieee1394_core.c')
-rw-r--r--drivers/ieee1394/ieee1394_core.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/ieee1394/ieee1394_core.c b/drivers/ieee1394/ieee1394_core.c
index dcdb71a7718d..2beb8d94f7bd 100644
--- a/drivers/ieee1394/ieee1394_core.c
+++ b/drivers/ieee1394/ieee1394_core.c
@@ -338,6 +338,7 @@ static void build_speed_map(struct hpsb_host *host, int nodecount)
u8 cldcnt[nodecount];
u8 *map = host->speed_map;
u8 *speedcap = host->speed;
+ u8 local_link_speed = host->csr.lnk_spd;
struct selfid *sid;
struct ext_selfid *esid;
int i, j, n;
@@ -373,8 +374,8 @@ static void build_speed_map(struct hpsb_host *host, int nodecount)
if (sid->port2 == SELFID_PORT_CHILD) cldcnt[n]++;
speedcap[n] = sid->speed;
- if (speedcap[n] > host->csr.lnk_spd)
- speedcap[n] = host->csr.lnk_spd;
+ if (speedcap[n] > local_link_speed)
+ speedcap[n] = local_link_speed;
n--;
}
}
@@ -407,12 +408,11 @@ static void build_speed_map(struct hpsb_host *host, int nodecount)
}
}
-#if SELFID_SPEED_UNKNOWN != IEEE1394_SPEED_MAX
- /* assume maximum speed for 1394b PHYs, nodemgr will correct it */
- for (n = 0; n < nodecount; n++)
- if (speedcap[n] == SELFID_SPEED_UNKNOWN)
- speedcap[n] = IEEE1394_SPEED_MAX;
-#endif
+ /* assume a maximum speed for 1394b PHYs, nodemgr will correct it */
+ if (local_link_speed > SELFID_SPEED_UNKNOWN)
+ for (i = 0; i < nodecount; i++)
+ if (speedcap[i] == SELFID_SPEED_UNKNOWN)
+ speedcap[i] = local_link_speed;
}