/*
+ * Copyright (c) 2006 QLogic, Inc. All rights reserved.
* Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
#include <linux/vmalloc.h>
#include "ipath_kernel.h"
-#include "ips_common.h"
+#include "ipath_common.h"
/*
* min buffers we want to have per port, after driver
MODULE_PARM_DESC(cfgports, "Set max number of ports to use");
/*
- * Number of buffers reserved for driver (layered drivers and SMA
- * send). Reserved at end of buffer list. Initialized based on
+ * Number of buffers reserved for driver (verbs and layered drivers.)
+ * Reserved at end of buffer list. Initialized based on
* number of PIO buffers if not set via module interface.
* The problem with this is that it's global, but we'll use different
* numbers for different chip types. So the default value is not
*
* Allocate the eager TID buffers and program them into infinipath.
* We use the network layer alloc_skb() allocator to allocate the
- * memory, and either use the buffers as is for things like SMA
+ * memory, and either use the buffers as is for things like verbs
* packets, or pass the buffers up to the ipath layered driver and
* thence the network layer, replacing them as we do so (see
* ipath_rcv_layer()).
static int create_port0_egr(struct ipath_devdata *dd)
{
unsigned e, egrcnt;
- struct sk_buff **skbs;
+ struct ipath_skbinfo *skbinfo;
int ret;
egrcnt = dd->ipath_rcvegrcnt;
- skbs = vmalloc(sizeof(*dd->ipath_port0_skbs) * egrcnt);
- if (skbs == NULL) {
+ skbinfo = vmalloc(sizeof(*dd->ipath_port0_skbinfo) * egrcnt);
+ if (skbinfo == NULL) {
ipath_dev_err(dd, "allocation error for eager TID "
"skb array\n");
ret = -ENOMEM;
* 4 bytes so that the data buffer stays word aligned.
* See ipath_kreceive() for more details.
*/
- skbs[e] = ipath_alloc_skb(dd, GFP_KERNEL);
- if (!skbs[e]) {
+ skbinfo[e].skb = ipath_alloc_skb(dd, GFP_KERNEL);
+ if (!skbinfo[e].skb) {
ipath_dev_err(dd, "SKB allocation error for "
"eager TID %u\n", e);
while (e != 0)
- dev_kfree_skb(skbs[--e]);
+ dev_kfree_skb(skbinfo[--e].skb);
+ vfree(skbinfo);
ret = -ENOMEM;
goto bail;
}
* After loop above, so we can test non-NULL to see if ready
* to use at receive, etc.
*/
- dd->ipath_port0_skbs = skbs;
+ dd->ipath_port0_skbinfo = skbinfo;
for (e = 0; e < egrcnt; e++) {
- unsigned long phys =
- virt_to_phys(dd->ipath_port0_skbs[e]->data);
+ dd->ipath_port0_skbinfo[e].phys =
+ ipath_map_single(dd->pcidev,
+ dd->ipath_port0_skbinfo[e].skb->data,
+ dd->ipath_ibmaxlen, PCI_DMA_FROMDEVICE);
dd->ipath_f_put_tid(dd, e + (u64 __iomem *)
((char __iomem *) dd->ipath_kregbase +
- dd->ipath_rcvegrbase), 0, phys);
+ dd->ipath_rcvegrbase), 0,
+ dd->ipath_port0_skbinfo[e].phys);
}
ret = 0;
"only supports %u\n", ipath_cfgports,
dd->ipath_portcnt);
}
- dd->ipath_pd = kzalloc(sizeof(*dd->ipath_pd) * dd->ipath_cfgports,
+ /*
+ * Allocate full portcnt array, rather than just cfgports, because
+ * cleanup iterates across all possible ports.
+ */
+ dd->ipath_pd = kzalloc(sizeof(*dd->ipath_pd) * dd->ipath_portcnt,
GFP_KERNEL);
if (!dd->ipath_pd) {
pd->port_port = 0;
pd->port_cnt = 1;
/* The port 0 pkey table is used by the layer interface. */
- pd->port_pkeys[0] = IPS_DEFAULT_P_KEY;
+ pd->port_pkeys[0] = IPATH_DEFAULT_P_KEY;
dd->ipath_rcvtidcnt =
ipath_read_kreg32(dd, dd->ipath_kregs->kr_rcvtidcnt);
dd->ipath_rcvtidbase =
/* and its length */
dd->ipath_freezelen = L1_CACHE_BYTES - sizeof(dd->ipath_statusp[0]);
- if (dd->ipath_unit * 64 > (IPATH_PORT0_RCVHDRTAIL_SIZE - 64)) {
- ipath_dev_err(dd, "unit %u too large for port 0 "
- "rcvhdrtail buffer size\n", dd->ipath_unit);
- ret = -ENODEV;
- }
- else
- ret = 0;
+ ret = 0;
- /* so we can get current tail in ipath_kreceive(), per chip */
- dd->ipath_hdrqtailptr = &ipath_port0_rcvhdrtail[
- dd->ipath_unit * (64 / sizeof(*ipath_port0_rcvhdrtail))];
done:
return ret;
}
*/
static void init_shadow_tids(struct ipath_devdata *dd)
{
- dd->ipath_pageshadow = (struct page **)
- vmalloc(dd->ipath_cfgports * dd->ipath_rcvtidcnt *
+ struct page **pages;
+ dma_addr_t *addrs;
+
+ pages = vmalloc(dd->ipath_cfgports * dd->ipath_rcvtidcnt *
sizeof(struct page *));
- if (!dd->ipath_pageshadow)
+ if (!pages) {
ipath_dev_err(dd, "failed to allocate shadow page * "
"array, no expected sends!\n");
- else
- memset(dd->ipath_pageshadow, 0,
- dd->ipath_cfgports * dd->ipath_rcvtidcnt *
- sizeof(struct page *));
+ dd->ipath_pageshadow = NULL;
+ return;
+ }
+
+ addrs = vmalloc(dd->ipath_cfgports * dd->ipath_rcvtidcnt *
+ sizeof(dma_addr_t));
+ if (!addrs) {
+ ipath_dev_err(dd, "failed to allocate shadow dma handle "
+ "array, no expected sends!\n");
+ vfree(dd->ipath_pageshadow);
+ dd->ipath_pageshadow = NULL;
+ return;
+ }
+
+ memset(pages, 0, dd->ipath_cfgports * dd->ipath_rcvtidcnt *
+ sizeof(struct page *));
+
+ dd->ipath_pageshadow = pages;
+ dd->ipath_physshadow = addrs;
}
static void enable_chip(struct ipath_devdata *dd,
u32 val;
int i;
- if (!reinit) {
- init_waitqueue_head(&ipath_sma_state_wait);
- }
+ if (!reinit)
+ init_waitqueue_head(&ipath_state_wait);
+
ipath_write_kreg(dd, dd->ipath_kregs->kr_rcvctrl,
dd->ipath_rcvctrl);
{
int ret = 0, i;
u32 val32, kpiobufs;
- u64 val, atmp;
+ u64 val;
struct ipath_portdata *pd = NULL; /* keep gcc4 happy */
+ gfp_t gfp_flags = GFP_USER | __GFP_COMP;
ret = init_housekeeping(dd, &pd, reinit);
if (ret)
dd->ipath_pioavregs = ALIGN(val, sizeof(u64) * BITS_PER_BYTE / 2)
/ (sizeof(u64) * BITS_PER_BYTE / 2);
if (ipath_kpiobufs == 0) {
- /* not set by user, or set explictly to default */
+ /* not set by user (this is default) */
if ((dd->ipath_piobcnt2k + dd->ipath_piobcnt4k) > 128)
kpiobufs = 32;
else
goto done;
}
- val = ipath_port0_rcvhdrtail_dma + dd->ipath_unit * 64;
-
- /* verify that the alignment requirement was met */
- ipath_write_kreg_port(dd, dd->ipath_kregs->kr_rcvhdrtailaddr,
- 0, val);
- atmp = ipath_read_kreg64_port(
- dd, dd->ipath_kregs->kr_rcvhdrtailaddr, 0);
- if (val != atmp) {
- ipath_dev_err(dd, "Catastrophic software error, "
- "RcvHdrTailAddr0 written as %llx, "
- "read back as %llx from %x\n",
- (unsigned long long) val,
- (unsigned long long) atmp,
- dd->ipath_kregs->kr_rcvhdrtailaddr);
- ret = -EINVAL;
- goto done;
- }
-
ipath_write_kreg(dd, dd->ipath_kregs->kr_rcvbthqp, IPATH_KD_QP);
/*
/* clear any interrups up to this point (ints still not enabled) */
ipath_write_kreg(dd, dd->ipath_kregs->kr_intclear, -1LL);
- ipath_stats.sps_lid[dd->ipath_unit] = dd->ipath_lid;
-
/*
* Set up the port 0 (kernel) rcvhdr q and egr TIDs. If doing
* re-init, the simplest way to handle this is to free
* existing, and re-allocate.
*/
- if (reinit)
- ipath_free_pddata(dd, 0, 0);
+ if (reinit) {
+ struct ipath_portdata *pd = dd->ipath_pd[0];
+ dd->ipath_pd[0] = NULL;
+ ipath_free_pddata(dd, pd);
+ }
dd->ipath_f_tidtemplate(dd);
ret = ipath_create_rcvhdrq(dd, pd);
- if (!ret)
+ if (!ret) {
+ dd->ipath_hdrqtailptr =
+ (volatile __le64 *)pd->port_rcvhdrtail_kvaddr;
ret = create_port0_egr(dd);
+ }
if (ret)
ipath_dev_err(dd, "failed to allocate port 0 (kernel) "
"rcvhdrq and/or egr bufs\n");
else
enable_chip(dd, pd, reinit);
+
+ if (!ret && !reinit) {
+ /* used when we close a port, for DMA already in flight at close */
+ dd->ipath_dummy_hdrq = dma_alloc_coherent(
+ &dd->pcidev->dev, pd->port_rcvhdrq_size,
+ &dd->ipath_dummy_hdrq_phys,
+ gfp_flags);
+ if (!dd->ipath_dummy_hdrq ) {
+ dev_info(&dd->pcidev->dev,
+ "Couldn't allocate 0x%lx bytes for dummy hdrq\n",
+ pd->port_rcvhdrq_size);
+ /* fallback to just 0'ing */
+ dd->ipath_dummy_hdrq_phys = 0UL;
+ }
+ }
+
/*
* cause retrigger of pending interrupts ignored during init,
* even if we had errors
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 */
dd->ipath_piobcnt2k + dd->ipath_piobcnt4k - val;
}
+ ipath_kpiobufs = val;
ret = 0;
bail:
spin_unlock_irqrestore(&ipath_devs_lock, flags);
git.samba.org / sfrench / cifs-2.6.git / blobdiff