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authorRalph Campbell <ralph.campbell@qlogic.com>2010-05-27 10:59:10 -0700
committerRoland Dreier <rolandd@cisco.com>2010-05-27 11:04:48 -0700
commit7145c45a06e9c918ccf2d8b27b01409a98a67be7 (patch)
treee1b45e37d34ce918b9a14997c427f7cb1a690682 /drivers/infiniband/hw
parenta77fcf895046664927dd6eea816602b87a1a6337 (diff)
downloadlinux-linaro-7145c45a06e9c918ccf2d8b27b01409a98a67be7.tar.gz
IB/qib: Remove DCA support until feature is finished
The DCA code was left over from internal development to test the hardware feature and allow performance testing. The results were mixed and will require some additional work to make full use of the feature. Therefore, it is being removed for now. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw')
-rw-r--r--drivers/infiniband/hw/qib/qib_iba7322.c189
1 files changed, 0 insertions, 189 deletions
diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c
index 23fb9efe20a..503992d9c5c 100644
--- a/drivers/infiniband/hw/qib/qib_iba7322.c
+++ b/drivers/infiniband/hw/qib/qib_iba7322.c
@@ -42,9 +42,6 @@
#include <linux/jiffies.h>
#include <rdma/ib_verbs.h>
#include <rdma/ib_smi.h>
-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
-#include <linux/dca.h>
-#endif
#include "qib.h"
#include "qib_7322_regs.h"
@@ -518,12 +515,6 @@ struct qib_chip_specific {
u32 lastbuf_for_pio;
u32 stay_in_freeze;
u32 recovery_ports_initted;
-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
- u32 dca_ctrl;
- int rhdr_cpu[18];
- int sdma_cpu[2];
- u64 dca_rcvhdr_ctrl[5]; /* B, C, D, E, F */
-#endif
struct msix_entry *msix_entries;
void **msix_arg;
unsigned long *sendchkenable;
@@ -642,52 +633,6 @@ static struct {
SYM_LSB(IntStatus, SDmaCleanupDone_1), 2 },
};
-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
-static const struct dca_reg_map {
- int shadow_inx;
- int lsb;
- u64 mask;
- u16 regno;
-} dca_rcvhdr_reg_map[] = {
- { 0, SYM_LSB(DCACtrlB, RcvHdrq0DCAOPH),
- ~SYM_MASK(DCACtrlB, RcvHdrq0DCAOPH) , KREG_IDX(DCACtrlB) },
- { 0, SYM_LSB(DCACtrlB, RcvHdrq1DCAOPH),
- ~SYM_MASK(DCACtrlB, RcvHdrq1DCAOPH) , KREG_IDX(DCACtrlB) },
- { 0, SYM_LSB(DCACtrlB, RcvHdrq2DCAOPH),
- ~SYM_MASK(DCACtrlB, RcvHdrq2DCAOPH) , KREG_IDX(DCACtrlB) },
- { 0, SYM_LSB(DCACtrlB, RcvHdrq3DCAOPH),
- ~SYM_MASK(DCACtrlB, RcvHdrq3DCAOPH) , KREG_IDX(DCACtrlB) },
- { 1, SYM_LSB(DCACtrlC, RcvHdrq4DCAOPH),
- ~SYM_MASK(DCACtrlC, RcvHdrq4DCAOPH) , KREG_IDX(DCACtrlC) },
- { 1, SYM_LSB(DCACtrlC, RcvHdrq5DCAOPH),
- ~SYM_MASK(DCACtrlC, RcvHdrq5DCAOPH) , KREG_IDX(DCACtrlC) },
- { 1, SYM_LSB(DCACtrlC, RcvHdrq6DCAOPH),
- ~SYM_MASK(DCACtrlC, RcvHdrq6DCAOPH) , KREG_IDX(DCACtrlC) },
- { 1, SYM_LSB(DCACtrlC, RcvHdrq7DCAOPH),
- ~SYM_MASK(DCACtrlC, RcvHdrq7DCAOPH) , KREG_IDX(DCACtrlC) },
- { 2, SYM_LSB(DCACtrlD, RcvHdrq8DCAOPH),
- ~SYM_MASK(DCACtrlD, RcvHdrq8DCAOPH) , KREG_IDX(DCACtrlD) },
- { 2, SYM_LSB(DCACtrlD, RcvHdrq9DCAOPH),
- ~SYM_MASK(DCACtrlD, RcvHdrq9DCAOPH) , KREG_IDX(DCACtrlD) },
- { 2, SYM_LSB(DCACtrlD, RcvHdrq10DCAOPH),
- ~SYM_MASK(DCACtrlD, RcvHdrq10DCAOPH) , KREG_IDX(DCACtrlD) },
- { 2, SYM_LSB(DCACtrlD, RcvHdrq11DCAOPH),
- ~SYM_MASK(DCACtrlD, RcvHdrq11DCAOPH) , KREG_IDX(DCACtrlD) },
- { 3, SYM_LSB(DCACtrlE, RcvHdrq12DCAOPH),
- ~SYM_MASK(DCACtrlE, RcvHdrq12DCAOPH) , KREG_IDX(DCACtrlE) },
- { 3, SYM_LSB(DCACtrlE, RcvHdrq13DCAOPH),
- ~SYM_MASK(DCACtrlE, RcvHdrq13DCAOPH) , KREG_IDX(DCACtrlE) },
- { 3, SYM_LSB(DCACtrlE, RcvHdrq14DCAOPH),
- ~SYM_MASK(DCACtrlE, RcvHdrq14DCAOPH) , KREG_IDX(DCACtrlE) },
- { 3, SYM_LSB(DCACtrlE, RcvHdrq15DCAOPH),
- ~SYM_MASK(DCACtrlE, RcvHdrq15DCAOPH) , KREG_IDX(DCACtrlE) },
- { 4, SYM_LSB(DCACtrlF, RcvHdrq16DCAOPH),
- ~SYM_MASK(DCACtrlF, RcvHdrq16DCAOPH) , KREG_IDX(DCACtrlF) },
- { 4, SYM_LSB(DCACtrlF, RcvHdrq17DCAOPH),
- ~SYM_MASK(DCACtrlF, RcvHdrq17DCAOPH) , KREG_IDX(DCACtrlF) },
-};
-#endif
-
/* ibcctrl bits */
#define QLOGIC_IB_IBCC_LINKINITCMD_DISABLE 1
/* cycle through TS1/TS2 till OK */
@@ -2538,95 +2483,6 @@ static void qib_setup_7322_setextled(struct qib_pportdata *ppd, u32 on)
qib_write_kreg_port(ppd, krp_rcvpktledcnt, ledblink);
}
-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
-static void qib_update_rhdrq_dca(struct qib_ctxtdata *rcd)
-{
- struct qib_devdata *dd = rcd->dd;
- struct qib_chip_specific *cspec = dd->cspec;
- int cpu = get_cpu();
-
- if (cspec->rhdr_cpu[rcd->ctxt] != cpu) {
- const struct dca_reg_map *rmp;
-
- cspec->rhdr_cpu[rcd->ctxt] = cpu;
- rmp = &dca_rcvhdr_reg_map[rcd->ctxt];
- cspec->dca_rcvhdr_ctrl[rmp->shadow_inx] &= rmp->mask;
- cspec->dca_rcvhdr_ctrl[rmp->shadow_inx] |=
- (u64) dca3_get_tag(&dd->pcidev->dev, cpu) << rmp->lsb;
- qib_write_kreg(dd, rmp->regno,
- cspec->dca_rcvhdr_ctrl[rmp->shadow_inx]);
- cspec->dca_ctrl |= SYM_MASK(DCACtrlA, RcvHdrqDCAEnable);
- qib_write_kreg(dd, KREG_IDX(DCACtrlA), cspec->dca_ctrl);
- }
- put_cpu();
-}
-
-static void qib_update_sdma_dca(struct qib_pportdata *ppd)
-{
- struct qib_devdata *dd = ppd->dd;
- struct qib_chip_specific *cspec = dd->cspec;
- int cpu = get_cpu();
- unsigned pidx = ppd->port - 1;
-
- if (cspec->sdma_cpu[pidx] != cpu) {
- cspec->sdma_cpu[pidx] = cpu;
- cspec->dca_rcvhdr_ctrl[4] &= ~(ppd->hw_pidx ?
- SYM_MASK(DCACtrlF, SendDma1DCAOPH) :
- SYM_MASK(DCACtrlF, SendDma0DCAOPH));
- cspec->dca_rcvhdr_ctrl[4] |=
- (u64) dca3_get_tag(&dd->pcidev->dev, cpu) <<
- (ppd->hw_pidx ?
- SYM_LSB(DCACtrlF, SendDma1DCAOPH) :
- SYM_LSB(DCACtrlF, SendDma0DCAOPH));
- qib_write_kreg(dd, KREG_IDX(DCACtrlF),
- cspec->dca_rcvhdr_ctrl[4]);
- cspec->dca_ctrl |= ppd->hw_pidx ?
- SYM_MASK(DCACtrlA, SendDMAHead1DCAEnable) :
- SYM_MASK(DCACtrlA, SendDMAHead0DCAEnable);
- qib_write_kreg(dd, KREG_IDX(DCACtrlA), cspec->dca_ctrl);
- }
- put_cpu();
-}
-
-static void qib_setup_dca(struct qib_devdata *dd)
-{
- struct qib_chip_specific *cspec = dd->cspec;
- int i;
-
- for (i = 0; i < ARRAY_SIZE(cspec->rhdr_cpu); i++)
- cspec->rhdr_cpu[i] = -1;
- for (i = 0; i < ARRAY_SIZE(cspec->sdma_cpu); i++)
- cspec->sdma_cpu[i] = -1;
- cspec->dca_rcvhdr_ctrl[0] =
- (1ULL << SYM_LSB(DCACtrlB, RcvHdrq0DCAXfrCnt)) |
- (1ULL << SYM_LSB(DCACtrlB, RcvHdrq1DCAXfrCnt)) |
- (1ULL << SYM_LSB(DCACtrlB, RcvHdrq2DCAXfrCnt)) |
- (1ULL << SYM_LSB(DCACtrlB, RcvHdrq3DCAXfrCnt));
- cspec->dca_rcvhdr_ctrl[1] =
- (1ULL << SYM_LSB(DCACtrlC, RcvHdrq4DCAXfrCnt)) |
- (1ULL << SYM_LSB(DCACtrlC, RcvHdrq5DCAXfrCnt)) |
- (1ULL << SYM_LSB(DCACtrlC, RcvHdrq6DCAXfrCnt)) |
- (1ULL << SYM_LSB(DCACtrlC, RcvHdrq7DCAXfrCnt));
- cspec->dca_rcvhdr_ctrl[2] =
- (1ULL << SYM_LSB(DCACtrlD, RcvHdrq8DCAXfrCnt)) |
- (1ULL << SYM_LSB(DCACtrlD, RcvHdrq9DCAXfrCnt)) |
- (1ULL << SYM_LSB(DCACtrlD, RcvHdrq10DCAXfrCnt)) |
- (1ULL << SYM_LSB(DCACtrlD, RcvHdrq11DCAXfrCnt));
- cspec->dca_rcvhdr_ctrl[3] =
- (1ULL << SYM_LSB(DCACtrlE, RcvHdrq12DCAXfrCnt)) |
- (1ULL << SYM_LSB(DCACtrlE, RcvHdrq13DCAXfrCnt)) |
- (1ULL << SYM_LSB(DCACtrlE, RcvHdrq14DCAXfrCnt)) |
- (1ULL << SYM_LSB(DCACtrlE, RcvHdrq15DCAXfrCnt));
- cspec->dca_rcvhdr_ctrl[4] =
- (1ULL << SYM_LSB(DCACtrlF, RcvHdrq16DCAXfrCnt)) |
- (1ULL << SYM_LSB(DCACtrlF, RcvHdrq17DCAXfrCnt));
- for (i = 0; i < ARRAY_SIZE(cspec->sdma_cpu); i++)
- qib_write_kreg(dd, KREG_IDX(DCACtrlB) + i,
- cspec->dca_rcvhdr_ctrl[i]);
-}
-
-#endif
-
/*
* Disable MSIx interrupt if enabled, call generic MSIx code
* to cleanup, and clear pending MSIx interrupts.
@@ -2667,15 +2523,6 @@ static void qib_setup_7322_cleanup(struct qib_devdata *dd)
{
int i;
-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
- if (dd->flags & QIB_DCA_ENABLED) {
- dca_remove_requester(&dd->pcidev->dev);
- dd->flags &= ~QIB_DCA_ENABLED;
- dd->cspec->dca_ctrl = 0;
- qib_write_kreg(dd, KREG_IDX(DCACtrlA), dd->cspec->dca_ctrl);
- }
-#endif
-
qib_7322_free_irq(dd);
kfree(dd->cspec->cntrs);
kfree(dd->cspec->sendchkenable);
@@ -2983,11 +2830,6 @@ static irqreturn_t qib_7322pintr(int irq, void *data)
if (dd->int_counter != (u32) -1)
dd->int_counter++;
-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
- if (dd->flags & QIB_DCA_ENABLED)
- qib_update_rhdrq_dca(rcd);
-#endif
-
/* Clear the interrupt bit we expect to be set. */
qib_write_kreg(dd, kr_intclear, ((1ULL << QIB_I_RCVAVAIL_LSB) |
(1ULL << QIB_I_RCVURG_LSB)) << rcd->ctxt);
@@ -3051,11 +2893,6 @@ static irqreturn_t sdma_intr(int irq, void *data)
if (dd->int_counter != (u32) -1)
dd->int_counter++;
-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
- if (dd->flags & QIB_DCA_ENABLED)
- qib_update_sdma_dca(ppd);
-#endif
-
/* Clear the interrupt bit we expect to be set. */
qib_write_kreg(dd, kr_intclear, ppd->hw_pidx ?
INT_MASK_P(SDma, 1) : INT_MASK_P(SDma, 0));
@@ -3085,11 +2922,6 @@ static irqreturn_t sdma_idle_intr(int irq, void *data)
if (dd->int_counter != (u32) -1)
dd->int_counter++;
-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
- if (dd->flags & QIB_DCA_ENABLED)
- qib_update_sdma_dca(ppd);
-#endif
-
/* Clear the interrupt bit we expect to be set. */
qib_write_kreg(dd, kr_intclear, ppd->hw_pidx ?
INT_MASK_P(SDmaIdle, 1) : INT_MASK_P(SDmaIdle, 0));
@@ -3119,11 +2951,6 @@ static irqreturn_t sdma_progress_intr(int irq, void *data)
if (dd->int_counter != (u32) -1)
dd->int_counter++;
-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
- if (dd->flags & QIB_DCA_ENABLED)
- qib_update_sdma_dca(ppd);
-#endif
-
/* Clear the interrupt bit we expect to be set. */
qib_write_kreg(dd, kr_intclear, ppd->hw_pidx ?
INT_MASK_P(SDmaProgress, 1) :
@@ -3154,11 +2981,6 @@ static irqreturn_t sdma_cleanup_intr(int irq, void *data)
if (dd->int_counter != (u32) -1)
dd->int_counter++;
-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
- if (dd->flags & QIB_DCA_ENABLED)
- qib_update_sdma_dca(ppd);
-#endif
-
/* Clear the interrupt bit we expect to be set. */
qib_write_kreg(dd, kr_intclear, ppd->hw_pidx ?
INT_MASK_PM(SDmaCleanupDone, 1) :
@@ -4265,10 +4087,6 @@ static void rcvctrl_7322_mod(struct qib_pportdata *ppd, unsigned int op,
qib_write_kreg_ctxt(dd, krc_rcvhdraddr, ctxt,
rcd->rcvhdrq_phys);
rcd->seq_cnt = 1;
-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
- if (dd->flags & QIB_DCA_ENABLED)
- qib_update_rhdrq_dca(rcd);
-#endif
}
if (op & QIB_RCVCTRL_CTXT_DIS)
ppd->p_rcvctrl &=
@@ -6893,13 +6711,6 @@ struct qib_devdata *qib_init_iba7322_funcs(struct pci_dev *pdev,
/* clear diagctrl register, in case diags were running and crashed */
qib_write_kreg(dd, kr_hwdiagctrl, 0);
-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
- ret = dca_add_requester(&pdev->dev);
- if (!ret) {
- dd->flags |= QIB_DCA_ENABLED;
- qib_setup_dca(dd);
- }
-#endif
goto bail;
bail_cleanup: