From 60948a415859cb859e24f0dfe739069d66577466 Mon Sep 17 00:00:00 2001 From: Ralph Campbell Date: Sun, 6 Jan 2008 21:02:34 -0800 Subject: [PATCH] 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 Signed-off-by: Roland Dreier --- 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 0b877ed76712..7b2f59af9c91 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 5ecf65b8f85a..0c900c51e538 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 23de8da0f16b..066a8ea4b4df 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 98b51465b58d..3174c315999b 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 08272bef2475..b9cca8403239 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 -- 2.20.1