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]);
- vfree(skbs);
+ 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) {
static int init_chip_reset(struct ipath_devdata *dd,
struct ipath_portdata **pdp)
{
- struct ipath_portdata *pd;
u32 rtmp;
- *pdp = pd = dd->ipath_pd[0];
+ *pdp = dd->ipath_pd[0];
/* ensure chip does no sends or receives while we re-initialize */
dd->ipath_control = dd->ipath_sendctrl = dd->ipath_rcvctrl = 0U;
ipath_write_kreg(dd, dd->ipath_kregs->kr_rcvctrl, 0);
*/
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);
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
dd->ipath_piobcnt2k + dd->ipath_piobcnt4k - val;
}
+ ipath_kpiobufs = val;
ret = 0;
bail:
spin_unlock_irqrestore(&ipath_devs_lock, flags);