Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=60948a415859cb859e24f0dfe739069d66577466
Commit:     60948a415859cb859e24f0dfe739069d66577466
Parent:     a18e26ae442001de62f6b84a923e8613347dc35f
Author:     Ralph Campbell <[EMAIL PROTECTED]>
AuthorDate: Sun Jan 6 21:02:34 2008 -0800
Committer:  Roland Dreier <[EMAIL PROTECTED]>
CommitDate: Fri Jan 25 14:15:39 2008 -0800

    IB/ipath: Port config has on-chip effects for 7220
    
    The number of configured ports for the 7220 changes the number of eager
    TIDs available per port, for all but port 0 (kernel port) which remains
    constant, so add a field to give port0 count separate from the portdata
    structure.
    
    Signed-off-by: Ralph Campbell <[EMAIL PROTECTED]>
    Signed-off-by: Roland Dreier <[EMAIL PROTECTED]>
---
 drivers/infiniband/hw/ipath/ipath_file_ops.c  |    2 +-
 drivers/infiniband/hw/ipath/ipath_iba6110.c   |    9 +++++++++
 drivers/infiniband/hw/ipath/ipath_iba6120.c   |    9 +++++++++
 drivers/infiniband/hw/ipath/ipath_init_chip.c |    5 ++---
 drivers/infiniband/hw/ipath/ipath_kernel.h    |    3 +++
 5 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c 
b/drivers/infiniband/hw/ipath/ipath_file_ops.c
index 0b877ed..7b2f59a 100644
--- a/drivers/infiniband/hw/ipath/ipath_file_ops.c
+++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c
@@ -882,7 +882,7 @@ static int ipath_create_user_egr(struct ipath_portdata *pd)
 
        egrcnt = dd->ipath_rcvegrcnt;
        /* TID number offset for this port */
-       egroff = pd->port_port * egrcnt;
+       egroff = (pd->port_port - 1) * egrcnt + dd->ipath_p0_rcvegrcnt;
        egrsize = dd->ipath_rcvegrbufsize;
        ipath_cdbg(VERBOSE, "Allocating %d egr buffers, at egrtid "
                   "offset %x, egrsize %u\n", egrcnt, egroff, egrsize);
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c 
b/drivers/infiniband/hw/ipath/ipath_iba6110.c
index 5ecf65b..0c900c5 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6110.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c
@@ -1669,6 +1669,14 @@ static void ipath_ht_free_irq(struct ipath_devdata *dd)
        dd->ipath_intconfig = 0;
 }
 
+static void ipath_ht_config_ports(struct ipath_devdata *dd, ushort cfgports)
+{
+       dd->ipath_portcnt =
+               ipath_read_kreg32(dd, dd->ipath_kregs->kr_portcnt);
+       dd->ipath_p0_rcvegrcnt =
+               ipath_read_kreg32(dd, dd->ipath_kregs->kr_rcvegrcnt);
+}
+
 static void ipath_ht_read_counters(struct ipath_devdata *dd,
                                   struct infinipath_counters *cntrs)
 {
@@ -1798,6 +1806,7 @@ void ipath_init_iba6110_funcs(struct ipath_devdata *dd)
        dd->ipath_f_setextled = ipath_setup_ht_setextled;
        dd->ipath_f_get_base_info = ipath_ht_get_base_info;
        dd->ipath_f_free_irq = ipath_ht_free_irq;
+       dd->ipath_f_config_ports = ipath_ht_config_ports;
        dd->ipath_f_read_counters = ipath_ht_read_counters;
 
        /*
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6120.c 
b/drivers/infiniband/hw/ipath/ipath_iba6120.c
index 23de8da..066a8ea 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6120.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6120.c
@@ -1423,6 +1423,14 @@ static void ipath_pe_free_irq(struct ipath_devdata *dd)
        dd->ipath_irq = 0;
 }
 
+static void ipath_pe_config_ports(struct ipath_devdata *dd, ushort cfgports)
+{
+       dd->ipath_portcnt =
+               ipath_read_kreg32(dd, dd->ipath_kregs->kr_portcnt);
+       dd->ipath_p0_rcvegrcnt =
+               ipath_read_kreg32(dd, dd->ipath_kregs->kr_rcvegrcnt);
+}
+
 static void ipath_pe_read_counters(struct ipath_devdata *dd,
                                   struct infinipath_counters *cntrs)
 {
@@ -1581,6 +1589,7 @@ void ipath_init_iba6120_funcs(struct ipath_devdata *dd)
 
        /* initialize chip-specific variables */
        dd->ipath_f_tidtemplate = ipath_pe_tidtemplate;
+       dd->ipath_f_config_ports = ipath_pe_config_ports;
        dd->ipath_f_read_counters = ipath_pe_read_counters;
 
        /*
diff --git a/drivers/infiniband/hw/ipath/ipath_init_chip.c 
b/drivers/infiniband/hw/ipath/ipath_init_chip.c
index 98b5146..3174c31 100644
--- a/drivers/infiniband/hw/ipath/ipath_init_chip.c
+++ b/drivers/infiniband/hw/ipath/ipath_init_chip.c
@@ -91,7 +91,7 @@ static int create_port0_egr(struct ipath_devdata *dd)
        struct ipath_skbinfo *skbinfo;
        int ret;
 
-       egrcnt = dd->ipath_rcvegrcnt;
+       egrcnt = dd->ipath_p0_rcvegrcnt;
 
        skbinfo = vmalloc(sizeof(*dd->ipath_port0_skbinfo) * egrcnt);
        if (skbinfo == NULL) {
@@ -244,8 +244,7 @@ static int init_chip_first(struct ipath_devdata *dd,
         * cfgports.  We do still check and report a difference, if
         * not same (should be impossible).
         */
-       dd->ipath_portcnt =
-               ipath_read_kreg32(dd, dd->ipath_kregs->kr_portcnt);
+       dd->ipath_f_config_ports(dd, ipath_cfgports);
        if (!ipath_cfgports)
                dd->ipath_cfgports = dd->ipath_portcnt;
        else if (ipath_cfgports <= dd->ipath_portcnt) {
diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h 
b/drivers/infiniband/hw/ipath/ipath_kernel.h
index 08272be..b9cca84 100644
--- a/drivers/infiniband/hw/ipath/ipath_kernel.h
+++ b/drivers/infiniband/hw/ipath/ipath_kernel.h
@@ -253,6 +253,7 @@ struct ipath_devdata {
        int (*ipath_f_get_base_info)(struct ipath_portdata *, void *);
        /* free irq */
        void (*ipath_f_free_irq)(struct ipath_devdata *);
+       void (*ipath_f_config_ports)(struct ipath_devdata *, ushort);
        void (*ipath_f_read_counters)(struct ipath_devdata *,
                                      struct infinipath_counters *);
        struct ipath_ibdev *verbs_dev;
@@ -326,6 +327,8 @@ struct ipath_devdata {
        u32 ipath_cfgports;
        /* count of port 0 hdrqfull errors */
        u32 ipath_p0_hdrqfull;
+       /* port 0 number of receive eager buffers */
+       u32 ipath_p0_rcvegrcnt;
 
        /*
         * index of last piobuffer we used.  Speeds up searching, by
-
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