From f2080fa3c6098dedfb9b599bdaedd07be2ea4646 Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Tue, 23 May 2006 11:32:34 -0700 Subject: [PATCH] IB/ipath: enable GPIO interrupt on HT-460 This is required for even semi-decent performance on OpenIB. Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_eeprom.c | 7 +++---- drivers/infiniband/hw/ipath/ipath_ht400.c | 21 +++++++++++++++++-- drivers/infiniband/hw/ipath/ipath_init_chip.c | 1 - drivers/infiniband/hw/ipath/ipath_kernel.h | 2 +- drivers/infiniband/hw/ipath/ipath_pe800.c | 2 ++ 5 files changed, 25 insertions(+), 8 deletions(-) diff --git a/drivers/infiniband/hw/ipath/ipath_eeprom.c b/drivers/infiniband/hw/ipath/ipath_eeprom.c index f11a900e8cd7..a2f1ceafcca9 100644 --- a/drivers/infiniband/hw/ipath/ipath_eeprom.c +++ b/drivers/infiniband/hw/ipath/ipath_eeprom.c @@ -505,11 +505,10 @@ static u8 flash_csum(struct ipath_flash *ifp, int adjust) * ipath_get_guid - get the GUID from the i2c device * @dd: the infinipath device * - * When we add the multi-chip support, we will probably have to add - * the ability to use the number of guids field, and get the guid from - * the first chip's flash, to use for all of them. + * We have the capability to use the ipath_nguid field, and get + * the guid from the first chip's flash, to use for all of them. */ -void ipath_get_guid(struct ipath_devdata *dd) +void ipath_get_eeprom_info(struct ipath_devdata *dd) { void *buf; struct ipath_flash *ifp; diff --git a/drivers/infiniband/hw/ipath/ipath_ht400.c b/drivers/infiniband/hw/ipath/ipath_ht400.c index 4652435998f3..fac0a2b74de2 100644 --- a/drivers/infiniband/hw/ipath/ipath_ht400.c +++ b/drivers/infiniband/hw/ipath/ipath_ht400.c @@ -607,7 +607,12 @@ static int ipath_ht_boardname(struct ipath_devdata *dd, char *name, case 4: /* Ponderosa is one of the bringup boards */ n = "Ponderosa"; break; - case 5: /* HT-460 original production board */ + case 5: + /* + * HT-460 original production board; two production levels, with + * different serial number ranges. See ipath_ht_early_init() for + * case where we enable IPATH_GPIO_INTR for later serial # range. + */ n = "InfiniPath_HT-460"; break; case 6: @@ -642,7 +647,7 @@ static int ipath_ht_boardname(struct ipath_devdata *dd, char *name, if (n) snprintf(name, namelen, "%s", n); - if (dd->ipath_majrev != 3 || dd->ipath_minrev != 2) { + if (dd->ipath_majrev != 3 || (dd->ipath_minrev < 2 || dd->ipath_minrev > 3)) { /* * This version of the driver only supports the HT-400 * Rev 3.2 @@ -1520,6 +1525,18 @@ static int ipath_ht_early_init(struct ipath_devdata *dd) */ ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, INFINIPATH_S_ABORT); + + ipath_get_eeprom_info(dd); + if(dd->ipath_boardrev == 5 && dd->ipath_serial[0] == '1' && + dd->ipath_serial[1] == '2' && dd->ipath_serial[2] == '8') { + /* + * Later production HT-460 has same changes as HT-465, so + * can use GPIO interrupts. They have serial #'s starting + * with 128, rather than 112. + */ + dd->ipath_flags |= IPATH_GPIO_INTR; + dd->ipath_flags &= ~IPATH_POLL_RX_INTR; + } return 0; } diff --git a/drivers/infiniband/hw/ipath/ipath_init_chip.c b/drivers/infiniband/hw/ipath/ipath_init_chip.c index 16f640e1c16e..dc83250d26a6 100644 --- a/drivers/infiniband/hw/ipath/ipath_init_chip.c +++ b/drivers/infiniband/hw/ipath/ipath_init_chip.c @@ -879,7 +879,6 @@ int ipath_init_chip(struct ipath_devdata *dd, int reinit) done: if (!ret) { - ipath_get_guid(dd); *dd->ipath_statusp |= IPATH_STATUS_CHIP_PRESENT; if (!dd->ipath_f_intrsetup(dd)) { /* now we can enable all interrupts from the chip */ diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h index e6507f8115bc..5d92d57b6f54 100644 --- a/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/drivers/infiniband/hw/ipath/ipath_kernel.h @@ -650,7 +650,7 @@ u32 __iomem *ipath_getpiobuf(struct ipath_devdata *, u32 *); void ipath_init_pe800_funcs(struct ipath_devdata *); /* init HT-400-specific func */ void ipath_init_ht400_funcs(struct ipath_devdata *); -void ipath_get_guid(struct ipath_devdata *); +void ipath_get_eeprom_info(struct ipath_devdata *); u64 ipath_snap_cntr(struct ipath_devdata *, ipath_creg); /* diff --git a/drivers/infiniband/hw/ipath/ipath_pe800.c b/drivers/infiniband/hw/ipath/ipath_pe800.c index 6318067ab5ec..02e8c75b24f6 100644 --- a/drivers/infiniband/hw/ipath/ipath_pe800.c +++ b/drivers/infiniband/hw/ipath/ipath_pe800.c @@ -1180,6 +1180,8 @@ static int ipath_pe_early_init(struct ipath_devdata *dd) */ dd->ipath_rhdrhead_intr_off = 1ULL<<32; + ipath_get_eeprom_info(dd); + return 0; } -- GitLab