Switch all the uses of vmalloc in the e1000 driver to virtual compounds.
This will result in the use of regular memory for the ring buffers etc
avoiding page tables,
Signed-off-by: Christoph Lameter <clameter@sgi.com>
---
drivers/net/e1000/e1000_main.c | 23 +++++++++++------------
drivers/net/e1000e/netdev.c | 12 ++++++------
2 files changed, 17 insertions(+), 18 deletions(-)
Index: linux-2.6.25-rc5-mm1/drivers/net/e1000e/netdev.c
===================================================================
--- linux-2.6.25-rc5-mm1.orig/drivers/net/e1000e/netdev.c 2008-03-20 21:52:45.962733927 -0700
+++ linux-2.6.25-rc5-mm1/drivers/net/e1000e/netdev.c 2008-03-20 21:57:27.212078371 -0700
@@ -1083,7 +1083,7 @@ int e1000e_setup_tx_resources(struct e10
int err = -ENOMEM, size;
size = sizeof(struct e1000_buffer) * tx_ring->count;
- tx_ring->buffer_info = vmalloc(size);
+ tx_ring->buffer_info = __alloc_vcompound(GFP_KERNEL, get_order(size));
if (!tx_ring->buffer_info)
goto err;
memset(tx_ring->buffer_info, 0, size);
@@ -1102,7 +1102,7 @@ int e1000e_setup_tx_resources(struct e10
return 0;
err:
- vfree(tx_ring->buffer_info);
+ __free_vcompound(tx_ring->buffer_info);
ndev_err(adapter->netdev,
"Unable to allocate memory for the transmit descriptor ring\n");
return err;
@@ -1121,7 +1121,7 @@ int e1000e_setup_rx_resources(struct e10
int i, size, desc_len, err = -ENOMEM;
size = sizeof(struct e1000_buffer) * rx_ring->count;
- rx_ring->buffer_info = vmalloc(size);
+ rx_ring->buffer_info = __alloc_vcompound(GFP_KERNEL, get_order(size));
if (!rx_ring->buffer_info)
goto err;
memset(rx_ring->buffer_info, 0, size);
@@ -1157,7 +1157,7 @@ err_pages:
kfree(buffer_info->ps_pages);
}
err:
- vfree(rx_ring->buffer_info);
+ __free_vcompound(rx_ring->buffer_info);
ndev_err(adapter->netdev,
"Unable to allocate memory for the transmit descriptor ring\n");
return err;
@@ -1204,7 +1204,7 @@ void e1000e_free_tx_resources(struct e10
e1000_clean_tx_ring(adapter);
- vfree(tx_ring->buffer_info);
+ __free_vcompound(tx_ring->buffer_info);
tx_ring->buffer_info = NULL;
dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc,
@@ -1231,7 +1231,7 @@ void e1000e_free_rx_resources(struct e10
kfree(rx_ring->buffer_info[i].ps_pages);
}
- vfree(rx_ring->buffer_info);
+ __free_vcompound(rx_ring->buffer_info);
rx_ring->buffer_info = NULL;
dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
Index: linux-2.6.25-rc5-mm1/drivers/net/e1000/e1000_main.c
===================================================================
--- linux-2.6.25-rc5-mm1.orig/drivers/net/e1000/e1000_main.c 2008-03-20 22:06:14.462252441 -0700
+++ linux-2.6.25-rc5-mm1/drivers/net/e1000/e1000_main.c 2008-03-20 22:08:46.582009872 -0700
@@ -1609,14 +1609,13 @@ e1000_setup_tx_resources(struct e1000_ad
int size;
size = sizeof(struct e1000_buffer) * txdr->count;
- txdr->buffer_info = vmalloc(size);
+ txdr->buffer_info = __alloc_vcompound(GFP_KERNEL | __GFP_ZERO,
+ get_order(size));
if (!txdr->buffer_info) {
DPRINTK(PROBE, ERR,
"Unable to allocate memory for the transmit descriptor ring\n");
return -ENOMEM;
}
- memset(txdr->buffer_info, 0, size);
-
/* round up to nearest 4K */
txdr->size = txdr->count * sizeof(struct e1000_tx_desc);
@@ -1625,7 +1624,7 @@ e1000_setup_tx_resources(struct e1000_ad
txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma);
if (!txdr->desc) {
setup_tx_desc_die:
- vfree(txdr->buffer_info);
+ __free_vcompound(txdr->buffer_info);
DPRINTK(PROBE, ERR,
"Unable to allocate memory for the transmit descriptor ring\n");
return -ENOMEM;
@@ -1653,7 +1652,7 @@ setup_tx_desc_die:
DPRINTK(PROBE, ERR,
"Unable to allocate aligned memory "
"for the transmit descriptor ring\n");
- vfree(txdr->buffer_info);
+ __free_vcompound(txdr->buffer_info);
return -ENOMEM;
} else {
/* Free old allocation, new allocation was successful */
@@ -1826,7 +1825,7 @@ e1000_setup_rx_resources(struct e1000_ad
int size, desc_len;
size = sizeof(struct e1000_buffer) * rxdr->count;
- rxdr->buffer_info = vmalloc(size);
+ rxdr->buffer_info = __alloc_vcompound(GFP_KERNEL, size);
if (!rxdr->buffer_info) {
DPRINTK(PROBE, ERR,
"Unable to allocate memory for the receive descriptor ring\n");
@@ -1837,7 +1836,7 @@ e1000_setup_rx_resources(struct e1000_ad
rxdr->ps_page = kcalloc(rxdr->count, sizeof(struct e1000_ps_page),
GFP_KERNEL);
if (!rxdr->ps_page) {
- vfree(rxdr->buffer_info);
+ __free_vcompound(rxdr->buffer_info);
DPRINTK(PROBE, ERR,
"Unable to allocate memory for the receive descriptor ring\n");
return -ENOMEM;
@@ -1847,7 +1846,7 @@ e1000_setup_rx_resources(struct e1000_ad
sizeof(struct e1000_ps_page_dma),
GFP_KERNEL);
if (!rxdr->ps_page_dma) {
- vfree(rxdr->buffer_info);
+ __free_vcompound(rxdr->buffer_info);
kfree(rxdr->ps_page);
DPRINTK(PROBE, ERR,
"Unable to allocate memory for the receive descriptor ring\n");
@@ -1870,7 +1869,7 @@ e1000_setup_rx_resources(struct e1000_ad
DPRINTK(PROBE, ERR,
"Unable to allocate memory for the receive descriptor ring\n");
setup_rx_desc_die:
- vfree(rxdr->buffer_info);
+ __free_vcompound(rxdr->buffer_info);
kfree(rxdr->ps_page);
kfree(rxdr->ps_page_dma);
return -ENOMEM;
@@ -2175,7 +2174,7 @@ e1000_free_tx_resources(struct e1000_ada
e1000_clean_tx_ring(adapter, tx_ring);
- vfree(tx_ring->buffer_info);
+ __free_vcompound(tx_ring->buffer_info);
tx_ring->buffer_info = NULL;
pci_free_consistent(pdev, tx_ring->size, tx_ring->desc, tx_ring->dma);
@@ -2283,9 +2282,9 @@ e1000_free_rx_resources(struct e1000_ada
e1000_clean_rx_ring(adapter, rx_ring);
- vfree(rx_ring->buffer_info);
+ __free_vcompound(rx_ring->buffer_info);
rx_ring->buffer_info = NULL;
- kfree(rx_ring->ps_page);
+ __free_vcompound(rx_ring->ps_page);
rx_ring->ps_page = NULL;
kfree(rx_ring->ps_page_dma);
rx_ring->ps_page_dma = NULL;
--
--
| Tarkan Erimer | Re: Dual-Licensing Linux Kernel with GPL V2 and GPL V3 |
| Stoyan Gaydarov | From 2.4 to 2.6 to 2.7? |
| David Miller | Slow DOWN, please!!! |
| Bart Van Assche | Integration of SCST in the mainstream Linux kernel |
git: | |
| Joe Fiorini | Undo git-rm without commit? |
| Linus Torvalds | Re: VCS comparison table |
| Linus Torvalds | People unaware of the importance of "git gc"? |
| Luke Lu | git-svn questions: how to clone/init non-standard layout branches/tags? |
| Richard Stallman | Real men don't attack straw men |
| Juan Miscaro | When will OpenBSD support UTF8? |
| Daniel Ouellet | Bottleneck in httpd. I need help to address capacity issues on max parallel and ra... |
| Kevin Neff | Patching a SSH 'Weakness' |
| Jarek Poplawski | Re: [PATCH] pkt_sched: Destroy gen estimators under rtnl_lock(). |
| Jiri Olsa | [PATCH] net: fix race in the receive/select |
| Arnaldo Carvalho de Melo | Re: [PATCH 03/37] dccp: List management for new feature negotiation |
| Eric Dumazet | Re: [PATCH] tcp: splice as many packets as possible at once |
