[PATCH] MAINTAINERS: cxgb3: Update cxgb3 maintainer entry

2013-11-11 Thread Divy Le Ray
Santosh raspatur is taking over the maintenance of cxgb3.

Signed-off-by: Divy Le Ray 
---
 MAINTAINERS |2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index ffcaf97..92c062d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2455,7 +2455,7 @@ S:Maintained
 F: drivers/media/dvb-frontends/cxd2820r*
 
 CXGB3 ETHERNET DRIVER (CXGB3)
-M: Divy Le Ray 
+M: Santosh Raspatur 
 L: net...@vger.kernel.org
 W: http://www.chelsio.com
 S: Supported

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Re: [PATCH] Revert "cxgb3: Check and handle the dma mapping errors"

2013-08-14 Thread Divy Le ray

On 08/14/2013 02:19 AM, Alexey Kardashevskiy wrote:

This reverts commit f83331bab149e29fa2c49cf102c0cd8c3f1ce9f9.

As the tests PPC64 (powernv platform) show, IOMMU pages are leaking
when transferring big amount of small packets (<=64 bytes),
"ping -f" and waiting for 15 seconds is the simplest way to confirm the bug.

Cc: Linus Torvalds
Cc: Santosh Rastapur
Cc: Jay Fenlason
Cc: David S. Miller
Cc: Divy Le ray
Signed-off-by: Alexey Kardashevskiy


Acked-by: Divy Le Ray 

We are revisiting this patch in the light of the leak, and will repost 
once fixed.


Cheers,
Divy


---
  drivers/net/ethernet/chelsio/cxgb3/sge.c | 107 +++
  1 file changed, 24 insertions(+), 83 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb3/sge.c 
b/drivers/net/ethernet/chelsio/cxgb3/sge.c
index 687ec4a..9c89dc8 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/sge.c
@@ -455,11 +455,6 @@ static int alloc_pg_chunk(struct adapter *adapter, struct 
sge_fl *q,
q->pg_chunk.offset = 0;
mapping = pci_map_page(adapter->pdev, q->pg_chunk.page,
   0, q->alloc_size, PCI_DMA_FROMDEVICE);
-   if (unlikely(pci_dma_mapping_error(adapter->pdev, mapping))) {
-   __free_pages(q->pg_chunk.page, order);
-   q->pg_chunk.page = NULL;
-   return -EIO;
-   }
q->pg_chunk.mapping = mapping;
}
sd->pg_chunk = q->pg_chunk;
@@ -954,75 +949,40 @@ static inline unsigned int calc_tx_descs(const struct 
sk_buff *skb)
return flits_to_desc(flits);
  }
  
-

-/* map_skb - map a packet main body and its page fragments
- * @pdev: the PCI device
- * @skb: the packet
- * @addr: placeholder to save the mapped addresses
- *
- * map the main body of an sk_buff and its page fragments, if any.
- */
-static int map_skb(struct pci_dev *pdev, const struct sk_buff *skb,
-  dma_addr_t *addr)
-{
-   const skb_frag_t *fp, *end;
-   const struct skb_shared_info *si;
-
-   *addr = pci_map_single(pdev, skb->data, skb_headlen(skb),
-  PCI_DMA_TODEVICE);
-   if (pci_dma_mapping_error(pdev, *addr))
-   goto out_err;
-
-   si = skb_shinfo(skb);
-   end = &si->frags[si->nr_frags];
-
-   for (fp = si->frags; fp < end; fp++) {
-   *++addr = skb_frag_dma_map(&pdev->dev, fp, 0, skb_frag_size(fp),
-  DMA_TO_DEVICE);
-   if (pci_dma_mapping_error(pdev, *addr))
-   goto unwind;
-   }
-   return 0;
-
-unwind:
-   while (fp-- > si->frags)
-   dma_unmap_page(&pdev->dev, *--addr, skb_frag_size(fp),
-  DMA_TO_DEVICE);
-
-   pci_unmap_single(pdev, addr[-1], skb_headlen(skb), PCI_DMA_TODEVICE);
-out_err:
-   return -ENOMEM;
-}
-
  /**
- * write_sgl - populate a scatter/gather list for a packet
+ * make_sgl - populate a scatter/gather list for a packet
   *@skb: the packet
   *@sgp: the SGL to populate
   *@start: start address of skb main body data to include in the SGL
   *@len: length of skb main body data to include in the SGL
- * @addr: the list of the mapped addresses
+ * @pdev: the PCI device
   *
- * Copies the scatter/gather list for the buffers that make up a packet
+ * Generates a scatter/gather list for the buffers that make up a packet
   *and returns the SGL size in 8-byte words.  The caller must size the SGL
   *appropriately.
   */
-static inline unsigned int write_sgl(const struct sk_buff *skb,
+static inline unsigned int make_sgl(const struct sk_buff *skb,
struct sg_ent *sgp, unsigned char *start,
-   unsigned int len, const dma_addr_t *addr)
+   unsigned int len, struct pci_dev *pdev)
  {
-   unsigned int i, j = 0, k = 0, nfrags;
+   dma_addr_t mapping;
+   unsigned int i, j = 0, nfrags;
  
  	if (len) {

+   mapping = pci_map_single(pdev, start, len, PCI_DMA_TODEVICE);
sgp->len[0] = cpu_to_be32(len);
-   sgp->addr[j++] = cpu_to_be64(addr[k++]);
+   sgp->addr[0] = cpu_to_be64(mapping);
+   j = 1;
}
  
  	nfrags = skb_shinfo(skb)->nr_frags;

for (i = 0; i < nfrags; i++) {
const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
  
+		mapping = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),

+  DMA_TO_DEVICE);
sgp->len[j] = cpu_to_be32(skb_frag_size(frag));
-   sgp->addr[j] = cpu_to_be64(addr[k++]);
+   sgp->addr[

Re: BUG cxgb3: Check and handle the dma mapping errors

2013-08-07 Thread Divy Le ray

On 08/05/2013 11:41 AM, Jay Fenlason wrote:

On Mon, Aug 05, 2013 at 12:59:04PM +1000, Alexey Kardashevskiy wrote:

Hi!

Recently I started getting multiple errors like this:

cxgb3 0006:01:00.0: iommu_alloc failed, tbl c3067980 vaddr
c01fbdaaa882 npages 1
cxgb3 0006:01:00.0: iommu_alloc failed, tbl c3067980 vaddr
c01fbdaaa882 npages 1
cxgb3 0006:01:00.0: iommu_alloc failed, tbl c3067980 vaddr
c01fbdaaa882 npages 1
cxgb3 0006:01:00.0: iommu_alloc failed, tbl c3067980 vaddr
c01fbdaaa882 npages 1
cxgb3 0006:01:00.0: iommu_alloc failed, tbl c3067980 vaddr
c01fbdaaa882 npages 1
cxgb3 0006:01:00.0: iommu_alloc failed, tbl c3067980 vaddr
c01fbdaaa882 npages 1
cxgb3 0006:01:00.0: iommu_alloc failed, tbl c3067980 vaddr
c01fbdaaa882 npages 1
... and so on

This is all happening on a PPC64 "powernv" platform machine. To trigger the
error state, it is enough to _flood_ ping CXGB3 card from another machine
(which has Emulex 10Gb NIC + Cisco switch). Just do "ping -f 172.20.1.2"
and wait 10-15 seconds.


The messages are coming from arch/powerpc/kernel/iommu.c and basically
mean that the driver requested more pages than the DMA window has which is
normally 1GB (there could be another possible source of errors -
ppc_md.tce_build callback - but on powernv platform it always succeeds).


The patch after which it broke is:
commit f83331bab149e29fa2c49cf102c0cd8c3f1ce9f9
Author: Santosh Rastapur 
Date:   Tue May 21 04:21:29 2013 +
cxgb3: Check and handle the dma mapping errors

Any quick ideas? Thanks!

That patch adds error checking to detect failed dma mapping requests.
Before it, the code always assumed that dma mapping requests succeded,
whether they actually do or not, so the fact that the older kernel
does not log errors only means that the failures are being ignored,
and any appearance of working is through pure luck.  The machine could
have just crashed at that point.

What is the observed behavior of the system by the machine initiating
the ping flood?  Do the older and newer kernels differ in the
percentage of pings that do not receive replies?  O the newer kernel,
when the mapping errors are detected, the packet that it is trying to
transmit is dropped, but I'm not at all sure what happens on the older
kernel after the dma mapping fails.  As I mentioned earlier, I'm
surprised it does not crash.  Perhaps the folks from Chelsio have a
better idea what happens after a dma mapping error is ignored?


Hi,

It should definitely not be ignored. It should not happen this reliably 
either.

I wonder if we are not hitting a leak of iommu entries.

Cheers,
Divy
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Re: Subject: pull request: linux-firmware: update cxgb4 firmware

2012-10-05 Thread Divy Le Ray

On 10/4/2012 8:49 PM, Ben Hutchings wrote:

On Wed, 2012-10-03 at 14:02 -0700, Divy Le Ray wrote:

On 9/28/2012 6:30 PM, Divy Le Ray wrote:

Hi,

Can you please pull from the following URL?
  git://git.chelsio.net/pub/git/linux-firmware.git for-upstream

Hi,

Is there any problem with this pull request?

[...]

No, it appears David has pulled and pushed out your change.


Great, thanks a lot!

Cheers,
Divy

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Re: Subject: pull request: linux-firmware: update cxgb4 firmware

2012-10-03 Thread Divy Le Ray

On 9/28/2012 6:30 PM, Divy Le Ray wrote:

Hi,

Can you please pull from the following URL?
 git://git.chelsio.net/pub/git/linux-firmware.git for-upstream


Hi,

Is there any problem with this pull request?

Cheers,
Divy



The following changes since commit 236367db10f1e618a3ced2538f5cd1802c31ebd8:
   Yuval Mintz (1):
bnx2x: update fw to 7.8.2

are available in the git repository at:
  git://git.chelsio.net/pub/git/linux-firmware.git for-upstream

Divy Le Ray (1):
  cxgb4: update firmware to revision 1.6.2.0

  WHENCE  |2 +-
  cxgb4/t4fw-1.4.23.0.bin |  Bin 326144 -> 0 bytes
  cxgb4/t4fw-1.6.2.0.bin  |  Bin 0 -> 431616 bytes
  cxgb4/t4fw.bin  |2 +-
  4 files changed, 2 insertions(+), 2 deletions(-)
  delete mode 100644 cxgb4/t4fw-1.4.23.0.bin
  create mode 100644 cxgb4/t4fw-1.6.2.0.bin

Cheers,
Divy



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Subject: pull request: linux-firmware: update cxgb4 firmware

2012-09-28 Thread Divy Le Ray
Hi,

Can you please pull from the following URL?
git://git.chelsio.net/pub/git/linux-firmware.git for-upstream

The following changes since commit 236367db10f1e618a3ced2538f5cd1802c31ebd8:
  Yuval Mintz (1):
   bnx2x: update fw to 7.8.2

are available in the git repository at: 
 git://git.chelsio.net/pub/git/linux-firmware.git for-upstream

Divy Le Ray (1):
 cxgb4: update firmware to revision 1.6.2.0

 WHENCE  |2 +-
 cxgb4/t4fw-1.4.23.0.bin |  Bin 326144 -> 0 bytes
 cxgb4/t4fw-1.6.2.0.bin  |  Bin 0 -> 431616 bytes
 cxgb4/t4fw.bin  |2 +-
 4 files changed, 2 insertions(+), 2 deletions(-)
 delete mode 100644 cxgb4/t4fw-1.4.23.0.bin
 create mode 100644 cxgb4/t4fw-1.6.2.0.bin

Cheers,
Divy
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Re: [git patches] net driver updates

2008-02-25 Thread Divy Le Ray




So, it sounds like Krishna's patch is ok, because the race does not 
exist anymore in this driver?
The first part is right indeed, but the second part is breaking the 
current usage of txq_stopped and

the logic that stops and restarts the Tx queue.
I can submit a patch fixing it. Plese let me know what's more convenient 
for you.


Cheers,
Divy
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RE: [git patches] net driver updates

2008-02-20 Thread Divy Le Ray
> From: "Divy Le Ray" <[EMAIL PROTECTED]>
> Date: Wed, 20 Feb 2008 21:57:08 -0800
> 
> > The driver is cxgb3 here, it uses LLTX.
> 
> That's extremely unfortunate, hopefully you can update it to
> use a model like tg3 and others use.  LLTX is a lost cause
> for hardware device drivers, and in fact we'd like to remove
> it tree wide eventually.

It sounds like I messed up.
cxgb3 does not use LLTX - The Chelsio driver does, thus should be
converted.

Divy
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RE: [git patches] net driver updates

2008-02-20 Thread Divy Le Ray


> -Original Message-
> From: David Miller [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, February 20, 2008 9:47 PM
> To: [EMAIL PROTECTED]
> Cc: Divy Le Ray; [EMAIL PROTECTED]; linux-kernel@vger.kernel.org;
> [EMAIL PROTECTED]
> Subject: Re: [git patches] net driver updates
> 
> From: Krishna Kumar2 <[EMAIL PROTECTED]>
> Date: Thu, 21 Feb 2008 09:13:49 +0530
> 
> > Hi Divy,
> >
> > > > Explain why, so I can include it in the changelog please...
> > >
> > > Hi Jeff,
> > >
> > > The first part of the patch removes the !netif_queue_stopped(dev).
> > > It opens the race discussed a while ago between Stephen hemminger
> and
> > > David Miller:
> > > http://marc.info/?l=linux-netdev&m=113383224512427&w=2
> >
> > I feel this race cannot happen anymore. I think the fix for that
race
> was
> > to introduce the
> > __LINK_STATE_QDISC_RUNNING bit thus eliminating any races between
> CPU's. If
> > one
> > CPU has called xmit, the other CPU will enqueue skbs (by holding the
> > queue_lock) and
> > exit from qdisc_run since it finds the bit set already.
> 
> And the race is talking about LLTX, which S2IO doesn't use as
> far as I can tell.

Dave,

The driver is cxgb3 here, it uses LLTX.

Cheers,
Divy
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Re: [git patches] net driver updates

2008-02-20 Thread Divy Le Ray

Jeff Garzik wrote:

Divy Le Ray wrote:

Jeff Garzik wrote:

Mostly fixes, a few cleanups (generally assisting fixes), and an
exception for PS3 wireless because it had been posted, reviewed and
acked for a while, just not committed.

Please pull from 'upstream-davem' branch of
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6.git 
upstream-davem


to receive the following updates:

 
 drivers/net/cxgb3/sge.c  |   35 +-

   diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index 9ca8c66..979f3fc 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -1059,6 +1059,14 @@ static void write_tx_pkt_wr(struct adapter 
*adap, struct sk_buff *skb,

  htonl(V_WR_TID(q->token)));
 }
 
+static inline void t3_stop_queue(struct net_device *dev, struct 
sge_qset *qs,

+ struct sge_txq *q)
+{
+netif_stop_queue(dev);
+set_bit(TXQ_ETH, &qs->txq_stopped);
+q->stops++;
+}
+
 /**
  *eth_xmit - add a packet to the Ethernet Tx queue
  *@skb: the packet
@@ -1090,31 +1098,18 @@ int t3_eth_xmit(struct sk_buff *skb, struct 
net_device *dev)

 ndesc = calc_tx_descs(skb);
 
 if (unlikely(credits < ndesc)) {

-if (!netif_queue_stopped(dev)) {
-netif_stop_queue(dev);
-set_bit(TXQ_ETH, &qs->txq_stopped);
-q->stops++;
-dev_err(&adap->pdev->dev,
-"%s: Tx ring %u full while queue awake!\n",
-dev->name, q->cntxt_id & 7);
-}
+t3_stop_queue(dev, qs, q);
+dev_err(&adap->pdev->dev,
+"%s: Tx ring %u full while queue awake!\n",
+dev->name, q->cntxt_id & 7);
 spin_unlock(&q->lock);
 return NETDEV_TX_BUSY;
 }
 
 q->in_use += ndesc;

-if (unlikely(credits - ndesc < q->stop_thres)) {
-q->stops++;
-netif_stop_queue(dev);
-set_bit(TXQ_ETH, &qs->txq_stopped);
-#if !USE_GTS
-if (should_restart_tx(q) &&
-test_and_clear_bit(TXQ_ETH, &qs->txq_stopped)) {
-q->restarts++;
-netif_wake_queue(dev);
-}
-#endif
-}
+if (unlikely(credits - ndesc < q->stop_thres))
+if (USE_GTS || !should_restart_tx(q))
+t3_stop_queue(dev, qs, q);
 
 gen = q->gen;

 q->unacked += ndesc;
  

Hi Jeff,

I thought I had NAK'ed the patch modifying sge.c from Krishna Kumar.
Looking back at my answer at the time, I was obviously unclear.
Can you please revert the drivers/net/cxgb3sge.c change ?


Explain why, so I can include it in the changelog please...


Hi Jeff,

The first part of the patch removes the !netif_queue_stopped(dev).
It opens the race discussed a while ago between Stephen hemminger and 
David Miller:

http://marc.info/?l=linux-netdev&m=113383224512427&w=2

The second part of the patch breaks the current usage of txq_stopped and 
the logic that stops and restarts the Tx queue.


Cheers,
Divy

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Re: [git patches] net driver updates

2008-02-11 Thread Divy Le Ray

Jeff Garzik wrote:

Mostly fixes, a few cleanups (generally assisting fixes), and an
exception for PS3 wireless because it had been posted, reviewed and
acked for a while, just not committed.

Please pull from 'upstream-davem' branch of
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6.git 
upstream-davem

to receive the following updates:

 
 drivers/net/cxgb3/sge.c  |   35 +-
  
 
diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c

index 9ca8c66..979f3fc 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -1059,6 +1059,14 @@ static void write_tx_pkt_wr(struct adapter *adap, struct 
sk_buff *skb,
 htonl(V_WR_TID(q->token)));
 }
 
+static inline void t3_stop_queue(struct net_device *dev, struct sge_qset *qs,

+struct sge_txq *q)
+{
+   netif_stop_queue(dev);
+   set_bit(TXQ_ETH, &qs->txq_stopped);
+   q->stops++;
+}
+
 /**
  * eth_xmit - add a packet to the Ethernet Tx queue
  * @skb: the packet
@@ -1090,31 +1098,18 @@ int t3_eth_xmit(struct sk_buff *skb, struct net_device 
*dev)
ndesc = calc_tx_descs(skb);
 
 	if (unlikely(credits < ndesc)) {

-   if (!netif_queue_stopped(dev)) {
-   netif_stop_queue(dev);
-   set_bit(TXQ_ETH, &qs->txq_stopped);
-   q->stops++;
-   dev_err(&adap->pdev->dev,
-   "%s: Tx ring %u full while queue awake!\n",
-   dev->name, q->cntxt_id & 7);
-   }
+   t3_stop_queue(dev, qs, q);
+   dev_err(&adap->pdev->dev,
+   "%s: Tx ring %u full while queue awake!\n",
+   dev->name, q->cntxt_id & 7);
spin_unlock(&q->lock);
return NETDEV_TX_BUSY;
}
 
 	q->in_use += ndesc;

-   if (unlikely(credits - ndesc < q->stop_thres)) {
-   q->stops++;
-   netif_stop_queue(dev);
-   set_bit(TXQ_ETH, &qs->txq_stopped);
-#if !USE_GTS
-   if (should_restart_tx(q) &&
-   test_and_clear_bit(TXQ_ETH, &qs->txq_stopped)) {
-   q->restarts++;
-   netif_wake_queue(dev);
-   }
-#endif
-   }
+   if (unlikely(credits - ndesc < q->stop_thres))
+   if (USE_GTS || !should_restart_tx(q))
+   t3_stop_queue(dev, qs, q);
 
 	gen = q->gen;

q->unacked += ndesc;
  

Hi Jeff,

I thought I had NAK'ed the patch modifying sge.c from Krishna Kumar.
Looking back at my answer at the time, I was obviously unclear.
Can you please revert the drivers/net/cxgb3sge.c change ?

Cheers,
Divy

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Re: [PATCH 2.6.25] cxgb3: Handle ARP completions that mark neighbors stale.

2008-02-06 Thread Divy Le Ray

Steve Wise wrote:

cxgb3: Handle ARP completions that mark neighbors stale.

When ARP completes due to a request rather than a reply the neighbor is
marked NUD_STALE instead of reachable (see arp_process()).  The handler
for the resulting netevent needs to check also for NUD_STALE.

Failure to use the arp entry can cause RDMA connection failures.

Signed-off-by: Steve Wise <[EMAIL PROTECTED]>
  


Acked-by: Divy Le Ray <[EMAIL PROTECTED]>

Divy
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[PATCH 1/2 2.6.25] cxgb3 - parity initialization for T3C adapters.

2007-12-17 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Add parity initialization for T3C adapters.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/adapter.h   |1 
 drivers/net/cxgb3/cxgb3_main.c|   82 
 drivers/net/cxgb3/cxgb3_offload.c |   15 ++
 drivers/net/cxgb3/regs.h  |  248 +
 drivers/net/cxgb3/sge.c   |   24 +++-
 drivers/net/cxgb3/t3_hw.c |  131 +---
 6 files changed, 472 insertions(+), 29 deletions(-)

diff --git a/drivers/net/cxgb3/adapter.h b/drivers/net/cxgb3/adapter.h
index 60a62f5..eb305a0 100644
--- a/drivers/net/cxgb3/adapter.h
+++ b/drivers/net/cxgb3/adapter.h
@@ -71,6 +71,7 @@ enum {/* adapter flags */
USING_MSI = (1 << 1),
USING_MSIX = (1 << 2),
QUEUES_BOUND = (1 << 3),
+   TP_PARITY_INIT = (1 << 4),
 };
 
 struct fl_pg_chunk {
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index 944423c..d1aa777 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -306,6 +306,77 @@ static int request_msix_data_irqs(struct adapter *adap)
return 0;
 }
 
+static int await_mgmt_replies(struct adapter *adap, unsigned long init_cnt,
+ unsigned long n)
+{
+   int attempts = 5;
+
+   while (adap->sge.qs[0].rspq.offload_pkts < init_cnt + n) {
+   if (!--attempts)
+   return -ETIMEDOUT;
+   msleep(10);
+   }
+   return 0;
+}
+
+static int init_tp_parity(struct adapter *adap)
+{
+   int i;
+   struct sk_buff *skb;
+   struct cpl_set_tcb_field *greq;
+   unsigned long cnt = adap->sge.qs[0].rspq.offload_pkts;
+
+   t3_tp_set_offload_mode(adap, 1);
+
+   for (i = 0; i < 16; i++) {
+   struct cpl_smt_write_req *req;
+
+   skb = alloc_skb(sizeof(*req), GFP_KERNEL | __GFP_NOFAIL);
+   req = (struct cpl_smt_write_req *)__skb_put(skb, sizeof(*req));
+   memset(req, 0, sizeof(*req));
+   req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
+   OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SMT_WRITE_REQ, i));
+   req->iff = i;
+   t3_mgmt_tx(adap, skb);
+   }
+
+   for (i = 0; i < 2048; i++) {
+   struct cpl_l2t_write_req *req;
+
+   skb = alloc_skb(sizeof(*req), GFP_KERNEL | __GFP_NOFAIL);
+   req = (struct cpl_l2t_write_req *)__skb_put(skb, sizeof(*req));
+   memset(req, 0, sizeof(*req));
+   req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
+   OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_L2T_WRITE_REQ, i));
+   req->params = htonl(V_L2T_W_IDX(i));
+   t3_mgmt_tx(adap, skb);
+   }
+
+   for (i = 0; i < 2048; i++) {
+   struct cpl_rte_write_req *req;
+
+   skb = alloc_skb(sizeof(*req), GFP_KERNEL | __GFP_NOFAIL);
+   req = (struct cpl_rte_write_req *)__skb_put(skb, sizeof(*req));
+   memset(req, 0, sizeof(*req));
+   req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
+   OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_RTE_WRITE_REQ, i));
+   req->l2t_idx = htonl(V_L2T_W_IDX(i));
+   t3_mgmt_tx(adap, skb);
+   }
+
+   skb = alloc_skb(sizeof(*greq), GFP_KERNEL | __GFP_NOFAIL);
+   greq = (struct cpl_set_tcb_field *)__skb_put(skb, sizeof(*greq));
+   memset(greq, 0, sizeof(*greq));
+   greq->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
+   OPCODE_TID(greq) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, 0));
+   greq->mask = cpu_to_be64(1);
+   t3_mgmt_tx(adap, skb);
+
+   i = await_mgmt_replies(adap, cnt, 16 + 2048 + 2048 + 1);
+   t3_tp_set_offload_mode(adap, 0);
+   return i;
+}
+
 /**
  * setup_rss - configure RSS
  * @adap: the adapter
@@ -817,6 +888,7 @@ static int cxgb_up(struct adapter *adap)
if (err)
goto out;
 
+   t3_set_reg_field(adap, A_TP_PARA_REG5, 0, F_RXDDPOFFINIT);
t3_write_reg(adap, A_ULPRX_TDDP_PSZ, V_HPZ0(PAGE_SHIFT - 12));
 
err = setup_sge_qsets(adap);
@@ -856,6 +928,16 @@ static int cxgb_up(struct adapter *adap)
t3_sge_start(adap);
t3_intr_enable(adap);
 
+   if (adap->params.rev >= T3_REV_C && !(adap->flags & TP_PARITY_INIT) &&
+   is_offload(adap) && init_tp_parity(adap) == 0)
+   adap->flags |= TP_PARITY_INIT;
+
+   if (adap->flags & TP_PARITY_INIT) {
+   t3_write_reg(adap, A_TP_INT_CAUSE,
+F_CMCACHEPERR | F_ARPLUTPERR);
+   t3_write_reg(adap, A_TP_INT_ENABLE, 0x7fbf);
+   }
+
if ((adap->flags &

[PATCH 2/2 2.6.25] cxgb3 - Fix EEH, missing softirq blocking

2007-12-17 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

set_pci_drvdata() stores a pointer to the adapter,
not the net device.
Add missing softirq blocking in t3_mgmt_tx.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/cxgb3_main.c |   14 --
 drivers/net/cxgb3/sge.c|7 ++-
 2 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index d1aa777..0e3dcbf 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -2408,9 +2408,7 @@ void t3_fatal_err(struct adapter *adapter)
 static pci_ers_result_t t3_io_error_detected(struct pci_dev *pdev,
 pci_channel_state_t state)
 {
-   struct net_device *dev = pci_get_drvdata(pdev);
-   struct port_info *pi = netdev_priv(dev);
-   struct adapter *adapter = pi->adapter;
+   struct adapter *adapter = pci_get_drvdata(pdev);
int i;
 
/* Stop all ports */
@@ -2444,9 +2442,7 @@ static pci_ers_result_t t3_io_error_detected(struct 
pci_dev *pdev,
  */
 static pci_ers_result_t t3_io_slot_reset(struct pci_dev *pdev)
 {
-   struct net_device *dev = pci_get_drvdata(pdev);
-   struct port_info *pi = netdev_priv(dev);
-   struct adapter *adapter = pi->adapter;
+   struct adapter *adapter = pci_get_drvdata(pdev);
 
if (pci_enable_device(pdev)) {
dev_err(&pdev->dev,
@@ -2469,9 +2465,7 @@ static pci_ers_result_t t3_io_slot_reset(struct pci_dev 
*pdev)
  */
 static void t3_io_resume(struct pci_dev *pdev)
 {
-   struct net_device *dev = pci_get_drvdata(pdev);
-   struct port_info *pi = netdev_priv(dev);
-   struct adapter *adapter = pi->adapter;
+   struct adapter *adapter = pci_get_drvdata(pdev);
int i;
 
/* Restart the ports */
@@ -2491,7 +2485,7 @@ static void t3_io_resume(struct pci_dev *pdev)
 
if (is_offload(adapter)) {
__set_bit(OFFLOAD_DEVMAP_BIT, &adapter->registered_device_map);
-   if (offload_open(dev))
+   if (offload_open(adapter->port[0]))
printk(KERN_WARNING
   "Could not bring back offload capabilities\n");
}
diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index cef153d..6367cee 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -1364,7 +1364,12 @@ static void restart_ctrlq(unsigned long data)
  */
 int t3_mgmt_tx(struct adapter *adap, struct sk_buff *skb)
 {
-   return ctrl_xmit(adap, &adap->sge.qs[0].txq[TXQ_CTRL], skb);
+   int ret; 
+   local_bh_disable();
+   ret = ctrl_xmit(adap, &adap->sge.qs[0].txq[TXQ_CTRL], skb);
+   local_bh_enable();
+
+   return ret;
 }
 
 /**
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Re: [PATCH 2/2] cxgb3 - Parity initialization for T3C adapters

2007-12-14 Thread Divy Le Ray

Divy Le Ray wrote:

Jeff Garzik wrote:


Divy Le Ray wrote:
> Jeff Garzik wrote:
>> Divy Le Ray wrote:
>>> From: Divy Le Ray <[EMAIL PROTECTED]>
>>>
>>> Add parity initialization for T3C adapters.
>>>
>>> Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
>>> ---
>>>
>>>  drivers/net/cxgb3/adapter.h   |1
>>>  drivers/net/cxgb3/cxgb3_main.c|   82 
>>>  drivers/net/cxgb3/cxgb3_offload.c |   15 ++
>>>  drivers/net/cxgb3/regs.h  |  248
>>> +
>>>  drivers/net/cxgb3/sge.c   |   24 +++-
>>>  drivers/net/cxgb3/t3_hw.c |  131 +---
>>>  6 files changed, 472 insertions(+), 29 deletions(-)
>>
>> dropped patches 2-3, did not apply
>>
>>
>
> Hi Jeff,
>
> I noticed that you applied the first one of this 3 patches series 
to the

> #upstream-fixes branch.
> These patches are intended to the #upstream (2.6.25) branch, as 
they are

> built on top of the
> last 10 patches committed - 9 from me, and the white space clean up
> (thanks!).
> May be this is the reason why they did not apply.

Ah... you need to tell me these things.  I looked for a kernel version
in your messages but did not see one.

I had put it in the introduction mail, I should have added the kernel 
version in the patch titles.

I'll do from now on.



Does the patch #1 need to be reverted for 2.6.24?


No, it can be applied to 2.6.24.
The 2 next patches seem to apply cleanly on #upstream when patch #1 is 
popped out the patch stack.



Hi Jeff,

Did you get a chance to apply these patches #upstream ?

Cheers,
Divy


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Re: [PATCH 2/2] cxgb3 - Parity initialization for T3C adapters

2007-12-07 Thread Divy Le Ray

Jeff Garzik wrote:


Divy Le Ray wrote:
> Jeff Garzik wrote:
>> Divy Le Ray wrote:
>>> From: Divy Le Ray <[EMAIL PROTECTED]>
>>>
>>> Add parity initialization for T3C adapters.
>>>
>>> Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
>>> ---
>>>
>>>  drivers/net/cxgb3/adapter.h   |1
>>>  drivers/net/cxgb3/cxgb3_main.c|   82 
>>>  drivers/net/cxgb3/cxgb3_offload.c |   15 ++
>>>  drivers/net/cxgb3/regs.h  |  248
>>> +
>>>  drivers/net/cxgb3/sge.c   |   24 +++-
>>>  drivers/net/cxgb3/t3_hw.c |  131 +---
>>>  6 files changed, 472 insertions(+), 29 deletions(-)
>>
>> dropped patches 2-3, did not apply
>>
>>
>
> Hi Jeff,
>
> I noticed that you applied the first one of this 3 patches series to the
> #upstream-fixes branch.
> These patches are intended to the #upstream (2.6.25) branch, as they are
> built on top of the
> last 10 patches committed - 9 from me, and the white space clean up
> (thanks!).
> May be this is the reason why they did not apply.

Ah... you need to tell me these things.  I looked for a kernel version
in your messages but did not see one.

I had put it in the introduction mail, I should have added the kernel 
version in the patch titles.

I'll do from now on.



Does the patch #1 need to be reverted for 2.6.24?


No, it can be applied to 2.6.24.
The 2 next patches seem to apply cleanly on #upstream when patch #1 is 
popped out the patch stack.




> On this topic, I have a question: how do I get to see all the netdev-2.6
> branches ?


git fetch -f $NETDEV_URL upstream:upstream

copies the latest upstream branch from netdev-2.6.git, and stores it as
your local upstream branch.

You may do the same for #upstream-fixes too.



That made it.
Thanks a lot!

Cheers,
Divy
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Re: [PATCH 2/2] cxgb3 - Parity initialization for T3C adapters

2007-12-07 Thread Divy Le Ray

Jeff Garzik wrote:

Divy Le Ray wrote:

From: Divy Le Ray <[EMAIL PROTECTED]>

Add parity initialization for T3C adapters.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/adapter.h   |1 
 drivers/net/cxgb3/cxgb3_main.c|   82 

 drivers/net/cxgb3/cxgb3_offload.c |   15 ++
 drivers/net/cxgb3/regs.h  |  248 
+

 drivers/net/cxgb3/sge.c   |   24 +++-
 drivers/net/cxgb3/t3_hw.c |  131 +---
 6 files changed, 472 insertions(+), 29 deletions(-)


dropped patches 2-3, did not apply




Hi Jeff,

I noticed that you applied the first one of this 3 patches series to the 
#upstream-fixes branch.
These patches are intended to the #upstream (2.6.25) branch, as they are 
built on top of the
last 10 patches committed - 9 from me, and the white space clean up 
(thanks!).

May be this is the reason why they did not apply.

On this topic, I have a question: how do I get to see all the netdev-2.6 
branches ?
After cloning a free  netdev-2.6 tree, 'git branch' shows only the 
master branch:


bash-3.1$ git --version
git version 1.5.3.rc4.29.g74276-dirty
-bash-3.1$ stg clone 
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/netdev-2.6.git 
netdev-2.6-fresh
Cloning 
"git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/netdev-2.6.git" 
into "netdev-2.6-fresh"...

Initialized empty Git repository in /opt/sources/netdev-2.6-fresh/.git/
remote: Generating pack...
remote: Counting objects: 620879
Done counting 633562 objects.
remote: Deltifying 633562 objects...
remote:  100% (633562/633562) done
Indexing 633562 objects...
remote: Total 633562 (delta 517968), reused 594305 (delta 478716)
100% (633562/633562) done
Resolving 517968 deltas...
100% (517968/517968) done
Checking 23058 files out...
100% (23058/23058) done
done
-bash-3.1$ cd netdev-2.6-fresh/
-bash-3.1$ git branch
* master

Cheers,
Divy


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Re: [PATCH 0/2] cxgb3 - driver update

2007-12-06 Thread Divy Le Ray

Divy Le Ray wrote:

Jeff,

I'm submitting a patch series for inclusion in 2.6.25.
The patches are built against netdev#upstream.

Here is a brief description:
- Update GPIO pinning and MAC support for T3C adapters
- Enable parity error detection.

Jeff,

I posted a third patch to fix the EEH code and add a missing
softirq blocking call.

Cheers,
Divy
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[PATCH 3/2] cxgb3 - Fix EEH, missing softirq blocking

2007-12-06 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

set_pci_drvdata() stores a pointer to the adapter,
not the net device.
Add missing softirq blocking in t3_mgmt_tx.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/cxgb3_main.c |   14 --
 drivers/net/cxgb3/sge.c|7 ++-
 2 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index d1aa777..0e3dcbf 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -2408,9 +2408,7 @@ void t3_fatal_err(struct adapter *adapter)
 static pci_ers_result_t t3_io_error_detected(struct pci_dev *pdev,
 pci_channel_state_t state)
 {
-   struct net_device *dev = pci_get_drvdata(pdev);
-   struct port_info *pi = netdev_priv(dev);
-   struct adapter *adapter = pi->adapter;
+   struct adapter *adapter = pci_get_drvdata(pdev);
int i;
 
/* Stop all ports */
@@ -2444,9 +2442,7 @@ static pci_ers_result_t t3_io_error_detected(struct 
pci_dev *pdev,
  */
 static pci_ers_result_t t3_io_slot_reset(struct pci_dev *pdev)
 {
-   struct net_device *dev = pci_get_drvdata(pdev);
-   struct port_info *pi = netdev_priv(dev);
-   struct adapter *adapter = pi->adapter;
+   struct adapter *adapter = pci_get_drvdata(pdev);
 
if (pci_enable_device(pdev)) {
dev_err(&pdev->dev,
@@ -2469,9 +2465,7 @@ static pci_ers_result_t t3_io_slot_reset(struct pci_dev 
*pdev)
  */
 static void t3_io_resume(struct pci_dev *pdev)
 {
-   struct net_device *dev = pci_get_drvdata(pdev);
-   struct port_info *pi = netdev_priv(dev);
-   struct adapter *adapter = pi->adapter;
+   struct adapter *adapter = pci_get_drvdata(pdev);
int i;
 
/* Restart the ports */
@@ -2491,7 +2485,7 @@ static void t3_io_resume(struct pci_dev *pdev)
 
if (is_offload(adapter)) {
__set_bit(OFFLOAD_DEVMAP_BIT, &adapter->registered_device_map);
-   if (offload_open(dev))
+   if (offload_open(adapter->port[0]))
printk(KERN_WARNING
   "Could not bring back offload capabilities\n");
}
diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index cef153d..6367cee 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -1364,7 +1364,12 @@ static void restart_ctrlq(unsigned long data)
  */
 int t3_mgmt_tx(struct adapter *adap, struct sk_buff *skb)
 {
-   return ctrl_xmit(adap, &adap->sge.qs[0].txq[TXQ_CTRL], skb);
+   int ret; 
+   local_bh_disable();
+   ret = ctrl_xmit(adap, &adap->sge.qs[0].txq[TXQ_CTRL], skb);
+   local_bh_enable();
+
+   return ret;
 }
 
 /**
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[PATCH 2/2] cxgb3 - Parity initialization for T3C adapters

2007-12-05 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Add parity initialization for T3C adapters.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/adapter.h   |1 
 drivers/net/cxgb3/cxgb3_main.c|   82 
 drivers/net/cxgb3/cxgb3_offload.c |   15 ++
 drivers/net/cxgb3/regs.h  |  248 +
 drivers/net/cxgb3/sge.c   |   24 +++-
 drivers/net/cxgb3/t3_hw.c |  131 +---
 6 files changed, 472 insertions(+), 29 deletions(-)

diff --git a/drivers/net/cxgb3/adapter.h b/drivers/net/cxgb3/adapter.h
index 60a62f5..eb305a0 100644
--- a/drivers/net/cxgb3/adapter.h
+++ b/drivers/net/cxgb3/adapter.h
@@ -71,6 +71,7 @@ enum {/* adapter flags */
USING_MSI = (1 << 1),
USING_MSIX = (1 << 2),
QUEUES_BOUND = (1 << 3),
+   TP_PARITY_INIT = (1 << 4),
 };
 
 struct fl_pg_chunk {
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index 944423c..d1aa777 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -306,6 +306,77 @@ static int request_msix_data_irqs(struct adapter *adap)
return 0;
 }
 
+static int await_mgmt_replies(struct adapter *adap, unsigned long init_cnt,
+ unsigned long n)
+{
+   int attempts = 5;
+
+   while (adap->sge.qs[0].rspq.offload_pkts < init_cnt + n) {
+   if (!--attempts)
+   return -ETIMEDOUT;
+   msleep(10);
+   }
+   return 0;
+}
+
+static int init_tp_parity(struct adapter *adap)
+{
+   int i;
+   struct sk_buff *skb;
+   struct cpl_set_tcb_field *greq;
+   unsigned long cnt = adap->sge.qs[0].rspq.offload_pkts;
+
+   t3_tp_set_offload_mode(adap, 1);
+
+   for (i = 0; i < 16; i++) {
+   struct cpl_smt_write_req *req;
+
+   skb = alloc_skb(sizeof(*req), GFP_KERNEL | __GFP_NOFAIL);
+   req = (struct cpl_smt_write_req *)__skb_put(skb, sizeof(*req));
+   memset(req, 0, sizeof(*req));
+   req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
+   OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SMT_WRITE_REQ, i));
+   req->iff = i;
+   t3_mgmt_tx(adap, skb);
+   }
+
+   for (i = 0; i < 2048; i++) {
+   struct cpl_l2t_write_req *req;
+
+   skb = alloc_skb(sizeof(*req), GFP_KERNEL | __GFP_NOFAIL);
+   req = (struct cpl_l2t_write_req *)__skb_put(skb, sizeof(*req));
+   memset(req, 0, sizeof(*req));
+   req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
+   OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_L2T_WRITE_REQ, i));
+   req->params = htonl(V_L2T_W_IDX(i));
+   t3_mgmt_tx(adap, skb);
+   }
+
+   for (i = 0; i < 2048; i++) {
+   struct cpl_rte_write_req *req;
+
+   skb = alloc_skb(sizeof(*req), GFP_KERNEL | __GFP_NOFAIL);
+   req = (struct cpl_rte_write_req *)__skb_put(skb, sizeof(*req));
+   memset(req, 0, sizeof(*req));
+   req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
+   OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_RTE_WRITE_REQ, i));
+   req->l2t_idx = htonl(V_L2T_W_IDX(i));
+   t3_mgmt_tx(adap, skb);
+   }
+
+   skb = alloc_skb(sizeof(*greq), GFP_KERNEL | __GFP_NOFAIL);
+   greq = (struct cpl_set_tcb_field *)__skb_put(skb, sizeof(*greq));
+   memset(greq, 0, sizeof(*greq));
+   greq->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
+   OPCODE_TID(greq) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, 0));
+   greq->mask = cpu_to_be64(1);
+   t3_mgmt_tx(adap, skb);
+
+   i = await_mgmt_replies(adap, cnt, 16 + 2048 + 2048 + 1);
+   t3_tp_set_offload_mode(adap, 0);
+   return i;
+}
+
 /**
  * setup_rss - configure RSS
  * @adap: the adapter
@@ -817,6 +888,7 @@ static int cxgb_up(struct adapter *adap)
if (err)
goto out;
 
+   t3_set_reg_field(adap, A_TP_PARA_REG5, 0, F_RXDDPOFFINIT);
t3_write_reg(adap, A_ULPRX_TDDP_PSZ, V_HPZ0(PAGE_SHIFT - 12));
 
err = setup_sge_qsets(adap);
@@ -856,6 +928,16 @@ static int cxgb_up(struct adapter *adap)
t3_sge_start(adap);
t3_intr_enable(adap);
 
+   if (adap->params.rev >= T3_REV_C && !(adap->flags & TP_PARITY_INIT) &&
+   is_offload(adap) && init_tp_parity(adap) == 0)
+   adap->flags |= TP_PARITY_INIT;
+
+   if (adap->flags & TP_PARITY_INIT) {
+   t3_write_reg(adap, A_TP_INT_CAUSE,
+F_CMCACHEPERR | F_ARPLUTPERR);
+   t3_write_reg(adap, A_TP_INT_ENABLE, 0x7fbf);
+   }
+
if ((adap->flags &

[PATCH 1/2] cxgb3 - T3C support update

2007-12-05 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Update GPIO mapping for T3C.
Update xgmac for T3C support.
Fix typo in mtu table.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/regs.h  |   27 ++-
 drivers/net/cxgb3/t3_hw.c |6 +++---
 drivers/net/cxgb3/xgmac.c |   44 +---
 3 files changed, 58 insertions(+), 19 deletions(-)

diff --git a/drivers/net/cxgb3/regs.h b/drivers/net/cxgb3/regs.h
index a7d5f65..70e1961 100644
--- a/drivers/net/cxgb3/regs.h
+++ b/drivers/net/cxgb3/regs.h
@@ -1959,6 +1959,10 @@
 
 #define A_XGM_RXFIFO_CFG 0x884
 
+#define S_RXFIFO_EMPTY31
+#define V_RXFIFO_EMPTY(x) ((x) << S_RXFIFO_EMPTY)
+#define F_RXFIFO_EMPTYV_RXFIFO_EMPTY(1U)
+
 #define S_RXFIFOPAUSEHWM17
 #define M_RXFIFOPAUSEHWM0xfff
 
@@ -1983,6 +1987,10 @@
 
 #define A_XGM_TXFIFO_CFG 0x888
 
+#define S_UNDERUNFIX22
+#define V_UNDERUNFIX(x) ((x) << S_UNDERUNFIX)
+#define F_UNDERUNFIXV_UNDERUNFIX(1U)
+
 #define S_TXIPG13
 #define M_TXIPG0xff
 #define V_TXIPG(x) ((x) << S_TXIPG)
@@ -2056,10 +2064,27 @@
 #define V_XAUIIMP(x) ((x) << S_XAUIIMP)
 
 #define A_XGM_RX_MAX_PKT_SIZE 0x8a8
-#define A_XGM_RX_MAX_PKT_SIZE_ERR_CNT 0x9a4
+
+#define S_RXMAXFRAMERSIZE17
+#define M_RXMAXFRAMERSIZE0x3fff
+#define V_RXMAXFRAMERSIZE(x) ((x) << S_RXMAXFRAMERSIZE)
+#define G_RXMAXFRAMERSIZE(x) (((x) >> S_RXMAXFRAMERSIZE) & M_RXMAXFRAMERSIZE)
+
+#define S_RXENFRAMER14
+#define V_RXENFRAMER(x) ((x) << S_RXENFRAMER)
+#define F_RXENFRAMERV_RXENFRAMER(1U)
+
+#define S_RXMAXPKTSIZE0
+#define M_RXMAXPKTSIZE0x3fff
+#define V_RXMAXPKTSIZE(x) ((x) << S_RXMAXPKTSIZE)
+#define G_RXMAXPKTSIZE(x) (((x) >> S_RXMAXPKTSIZE) & M_RXMAXPKTSIZE)
 
 #define A_XGM_RESET_CTRL 0x8ac
 
+#define S_XGMAC_STOP_EN4
+#define V_XGMAC_STOP_EN(x) ((x) << S_XGMAC_STOP_EN)
+#define F_XGMAC_STOP_ENV_XGMAC_STOP_EN(1U)
+
 #define S_XG2G_RESET_3
 #define V_XG2G_RESET_(x) ((x) << S_XG2G_RESET_)
 #define F_XG2G_RESET_V_XG2G_RESET_(1U)
diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index 553dd9a..dfdda47 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -447,8 +447,8 @@ static const struct adapter_info t3_adap_info[] = {
 &mi1_mdio_ops, "Chelsio T302"},
{1, 0, 0, 0,
 F_GPIO1_OEN | F_GPIO6_OEN | F_GPIO7_OEN | F_GPIO10_OEN |
-F_GPIO1_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL, 0,
-SUPPORTED_1baseT_Full | SUPPORTED_AUI,
+F_GPIO11_OEN | F_GPIO1_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL,
+0, SUPPORTED_1baseT_Full | SUPPORTED_AUI,
 &mi1_mdio_ext_ops, "Chelsio T310"},
{2, 0, 0, 0,
 F_GPIO1_OEN | F_GPIO2_OEN | F_GPIO4_OEN | F_GPIO5_OEN | F_GPIO6_OEN |
@@ -2631,7 +2631,7 @@ static void __devinit init_mtus(unsigned short mtus[])
 * it can accomodate max size TCP/IP headers when SACK and timestamps
 * are enabled and still have at least 8 bytes of payload.
 */
-   mtus[1] = 88;
+   mtus[0] = 88;
mtus[1] = 88;
mtus[2] = 256;
mtus[3] = 512;
diff --git a/drivers/net/cxgb3/xgmac.c b/drivers/net/cxgb3/xgmac.c
index 98303fd..ffdc0a1 100644
--- a/drivers/net/cxgb3/xgmac.c
+++ b/drivers/net/cxgb3/xgmac.c
@@ -106,6 +106,7 @@ int t3_mac_reset(struct cmac *mac)
t3_set_reg_field(adap, A_XGM_RXFIFO_CFG + oft,
 F_RXSTRFRWRD | F_DISERRFRAMES,
 uses_xaui(adap) ? 0 : F_RXSTRFRWRD);
+   t3_set_reg_field(adap, A_XGM_TXFIFO_CFG + oft, 0, F_UNDERUNFIX);
 
if (uses_xaui(adap)) {
if (adap->params.rev == 0) {
@@ -124,7 +125,11 @@ int t3_mac_reset(struct cmac *mac)
xaui_serdes_reset(mac);
}
 
-   val = F_MAC_RESET_;
+   t3_set_reg_field(adap, A_XGM_RX_MAX_PKT_SIZE + oft,
+V_RXMAXFRAMERSIZE(M_RXMAXFRAMERSIZE),
+V_RXMAXFRAMERSIZE(MAX_FRAME_SIZE) | F_RXENFRAMER);
+   val = F_MAC_RESET_ | F_XGMAC_STOP_EN;
+
if (is_10G(adap))
val |= F_PCS_RESET_;
else if (uses_xaui(adap))
@@ -313,8 +318,9 @@ static int rx_fifo_hwm(int mtu)
 
 int t3_mac_set_mtu(struct cmac *mac, unsigned int mtu)
 {
-   int hwm, lwm;
-   unsigned int thres, v;
+   int hwm, lwm, divisor;
+   int ipg;
+   unsigned int thres, v, reg;
struct adapter *adap = mac->adapter;
 
/*
@@ -335,27 +341,32 @@ int t3_mac_set_mtu(struct cmac *mac, unsigned int mtu)
hwm = min(hwm, MAC_RXFIFO_SIZE - 8192);
lwm = min(3 * (int)mtu, MAC_RXFIFO_SIZE / 4);
 
-   if (adap->params.rev == T3_REV_B2 &&
+   if (adap->params.rev >= T3_REV_B2 &&
(t3_read_reg(adap, A_XGM_RX_CTRL + mac->offset) & F_RXEN)) {
disable_

[PATCH 0/2] cxgb3 - driver update

2007-12-05 Thread Divy Le Ray

Jeff,

I'm submitting a patch series for inclusion in 2.6.25.
The patches are built against netdev#upstream.

Here is a brief description:
- Update GPIO pinning and MAC support for T3C adapters
- Enable parity error detection.

Cheers,
Divy

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Re: [LIKELY_SPAM][git patches] net driver fixes

2007-12-01 Thread Divy Le Ray

Jeff Garzik wrote:


Notes:

1) Several of these are resends from the last submission.

2) That chelsio file mode change (644->755) is a bit annoying.  Can git
do chmod as a changeset by itself?



Sorry for this. I had not noticed it.
If any help, I just submitted a patch reverting the file mode changes.

Cheers,
Divy
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[PATCH] cxgb - revert file mode changes.

2007-12-01 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

revert inavertant file mode changes

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/chelsio/cxgb2.c  |0 
 drivers/net/chelsio/pm3393.c |0 
 drivers/net/chelsio/sge.c|0 
 drivers/net/chelsio/sge.h|0 
 4 files changed, 0 insertions(+), 0 deletions(-)

diff --git a/drivers/net/chelsio/cxgb2.c b/drivers/net/chelsio/cxgb2.c
old mode 100755
new mode 100644
diff --git a/drivers/net/chelsio/pm3393.c b/drivers/net/chelsio/pm3393.c
old mode 100755
new mode 100644
diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c
old mode 100755
new mode 100644
diff --git a/drivers/net/chelsio/sge.h b/drivers/net/chelsio/sge.h
old mode 100755
new mode 100644
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Re: [PATCH 0/3] cxgb - driver fixes.

2007-12-01 Thread Divy Le Ray

Ben Greear wrote:

Divy Le Ray wrote:

Jeff,

I'm submitting a patch series for inclusion in 2.6.24 for the cxgb 
driver.

The patches are built against Linus'git tree.

Here is a brief description:
- Ensure that GSO skbs have enough headroom before encapsulating them,
- Fix a crash in NAPI mode,
- Fix statistics accounting and report.


We ran pktgen overnight on 2.6.23 with patch 1 and 3 applied (patch 2
not needed on .23 it seems) and it was stable at about 1.5Gbps 
bi-directional

using 1500 MTU sized frames.

We'll run some more tests with user-space TCP & UDP today, but it 
looks good

so far.

Perhaps these patches should be considered for .23 stable as well?

Thanks,
Ben



Yes, patches 1 and 3 could be considered for .22 and .23-stable, along 
with the previous fix:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=7de6af0f23b25df8da9719ecae1916b669d0b03d

Cheers,
Divy
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[PATCH 2/3] cxgb - fix NAPI

2007-11-27 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

netif_rx_complete() should be called only 
when work_done < budget.

Signed-off-by: Divy Le ray <[EMAIL PROTECTED]>
---

 drivers/net/chelsio/sge.c |6 ++
 1 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c
old mode 100755
new mode 100644
index e8b1036..4b6258f
--- a/drivers/net/chelsio/sge.c
+++ b/drivers/net/chelsio/sge.c
@@ -1625,11 +1625,9 @@ int t1_poll(struct napi_struct *napi, int budget)
 {
struct adapter *adapter = container_of(napi, struct adapter, napi);
struct net_device *dev = adapter->port[0].dev;
-   int work_done;
-
-   work_done = process_responses(adapter, budget);
+   int work_done = process_responses(adapter, budget);
 
-   if (likely(!responses_pending(adapter))) {
+   if (likely(work_done < budget)) {
netif_rx_complete(dev, napi);
writel(adapter->sge->respQ.cidx,
   adapter->regs + A_SG_SLEEPING);
-
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[PATCH 3/3] cxgb - fix stats

2007-11-27 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Fix MAC stats accounting. 
Fix get_stats.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/chelsio/cxgb2.c  |   67 +++--
 drivers/net/chelsio/pm3393.c |  112 +-
 drivers/net/chelsio/sge.c|4 --
 drivers/net/chelsio/sge.h|2 -
 4 files changed, 96 insertions(+), 89 deletions(-)

diff --git a/drivers/net/chelsio/cxgb2.c b/drivers/net/chelsio/cxgb2.c
index 2461f91..c597504 100755
--- a/drivers/net/chelsio/cxgb2.c
+++ b/drivers/net/chelsio/cxgb2.c
@@ -374,7 +374,9 @@ static char stats_strings[][ETH_GSTRING_LEN] = {
"TxInternalMACXmitError",
"TxFramesWithExcessiveDeferral",
"TxFCSErrors",
-
+   "TxJumboFramesOk",
+   "TxJumboOctetsOk",
+   
"RxOctetsOK",
"RxOctetsBad",
"RxUnicastFramesOK",
@@ -392,11 +394,11 @@ static char stats_strings[][ETH_GSTRING_LEN] = {
"RxInRangeLengthErrors",
"RxOutOfRangeLengthField",
"RxFrameTooLongErrors",
+   "RxJumboFramesOk",
+   "RxJumboOctetsOk",
 
/* Port stats */
-   "RxPackets",
"RxCsumGood",
-   "TxPackets",
"TxCsumOffload",
"TxTso",
"RxVlan",
@@ -464,23 +466,56 @@ static void get_stats(struct net_device *dev, struct 
ethtool_stats *stats,
const struct cmac_statistics *s;
const struct sge_intr_counts *t;
struct sge_port_stats ss;
-   unsigned int len;
 
s = mac->ops->statistics_update(mac, MAC_STATS_UPDATE_FULL);
-
-   len = sizeof(u64)*(&s->TxFCSErrors + 1 - &s->TxOctetsOK);
-   memcpy(data, &s->TxOctetsOK, len);
-   data += len;
-
-   len = sizeof(u64)*(&s->RxFrameTooLongErrors + 1 - &s->RxOctetsOK);
-   memcpy(data, &s->RxOctetsOK, len);
-   data += len;
-
+   t = t1_sge_get_intr_counts(adapter->sge);
t1_sge_get_port_stats(adapter->sge, dev->if_port, &ss);
-   memcpy(data, &ss, sizeof(ss));
-   data += sizeof(ss);
 
-   t = t1_sge_get_intr_counts(adapter->sge);
+   *data++ = s->TxOctetsOK;
+   *data++ = s->TxOctetsBad;
+   *data++ = s->TxUnicastFramesOK;
+   *data++ = s->TxMulticastFramesOK;
+   *data++ = s->TxBroadcastFramesOK;
+   *data++ = s->TxPauseFrames;
+   *data++ = s->TxFramesWithDeferredXmissions;
+   *data++ = s->TxLateCollisions;
+   *data++ = s->TxTotalCollisions;
+   *data++ = s->TxFramesAbortedDueToXSCollisions;
+   *data++ = s->TxUnderrun;
+   *data++ = s->TxLengthErrors;
+   *data++ = s->TxInternalMACXmitError;
+   *data++ = s->TxFramesWithExcessiveDeferral;
+   *data++ = s->TxFCSErrors;
+   *data++ = s->TxJumboFramesOK;
+   *data++ = s->TxJumboOctetsOK;
+
+   *data++ = s->RxOctetsOK;
+   *data++ = s->RxOctetsBad;
+   *data++ = s->RxUnicastFramesOK;
+   *data++ = s->RxMulticastFramesOK;
+   *data++ = s->RxBroadcastFramesOK;
+   *data++ = s->RxPauseFrames;
+   *data++ = s->RxFCSErrors;
+   *data++ = s->RxAlignErrors;
+   *data++ = s->RxSymbolErrors;
+   *data++ = s->RxDataErrors;
+   *data++ = s->RxSequenceErrors;
+   *data++ = s->RxRuntErrors;
+   *data++ = s->RxJabberErrors;
+   *data++ = s->RxInternalMACRcvError;
+   *data++ = s->RxInRangeLengthErrors;
+   *data++ = s->RxOutOfRangeLengthField;
+   *data++ = s->RxFrameTooLongErrors;
+   *data++ = s->RxJumboFramesOK;
+   *data++ = s->RxJumboOctetsOK;
+
+   *data++ = ss.rx_cso_good;
+   *data++ = ss.tx_cso;
+   *data++ = ss.tx_tso;
+   *data++ = ss.vlan_xtract;
+   *data++ = ss.vlan_insert;
+   *data++ = ss.tx_need_hdrroom;
+   
*data++ = t->rx_drops;
*data++ = t->pure_rsps;
*data++ = t->unhandled_irqs;
diff --git a/drivers/net/chelsio/pm3393.c b/drivers/net/chelsio/pm3393.c
old mode 100644
new mode 100755
index 678778a..2117c4f
--- a/drivers/net/chelsio/pm3393.c
+++ b/drivers/net/chelsio/pm3393.c
@@ -45,7 +45,7 @@
 
 #include 
 
-#define OFFSET(REG_ADDR)(REG_ADDR << 2)
+#define OFFSET(REG_ADDR)((REG_ADDR) << 2)
 
 /* Max frame size PM3393 can handle. Includes Ethernet header and CRC. */
 #define MAX_FRAME_SIZE  9600
@@ -428,69 +428,26 @@ static int pm3393_set_speed_duplex_fc(struct cmac *cmac, 
int speed, int duplex,
return 0;
 }
 
-static void pm3393_rmon_update(struct adapter *adapter, u32 offs, u64 *val,
-  int over)
-{
-   u32 val0, val1, val2;
-
-   t1_tpi_read(adapter, offs, &val0);
-   t1_tpi_read(adapter,

[PATCH 1/3] cxgb - fix T2 GSO

2007-11-27 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

The patch ensures that a GSO skb has enough headroom
to push an encapsulating cpl_tx_pkt_lso header.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/chelsio/cxgb2.c |3 ++-
 drivers/net/chelsio/sge.c   |   34 +++---
 drivers/net/chelsio/sge.h   |1 +
 3 files changed, 18 insertions(+), 20 deletions(-)

diff --git a/drivers/net/chelsio/cxgb2.c b/drivers/net/chelsio/cxgb2.c
old mode 100644
new mode 100755
index 2dbf8dc..2461f91
--- a/drivers/net/chelsio/cxgb2.c
+++ b/drivers/net/chelsio/cxgb2.c
@@ -401,7 +401,8 @@ static char stats_strings[][ETH_GSTRING_LEN] = {
"TxTso",
"RxVlan",
"TxVlan",
-
+   "TxNeedHeadroom", 
+   
/* Interrupt stats */
"rx drops",
"pure_rsps",
diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c
old mode 100644
new mode 100755
index 4436662..e8b1036
--- a/drivers/net/chelsio/sge.c
+++ b/drivers/net/chelsio/sge.c
@@ -991,6 +991,7 @@ void t1_sge_get_port_stats(const struct sge *sge, int port,
ss->tx_packets += st->tx_packets;
ss->tx_cso += st->tx_cso;
ss->tx_tso += st->tx_tso;
+   ss->tx_need_hdrroom += st->tx_need_hdrroom;
ss->vlan_xtract += st->vlan_xtract;
ss->vlan_insert += st->vlan_insert;
}
@@ -1848,7 +1849,8 @@ int t1_start_xmit(struct sk_buff *skb, struct net_device 
*dev)
 {
struct adapter *adapter = dev->priv;
struct sge *sge = adapter->sge;
-   struct sge_port_stats *st = per_cpu_ptr(sge->port_stats[dev->if_port], 
smp_processor_id());
+   struct sge_port_stats *st = per_cpu_ptr(sge->port_stats[dev->if_port],
+   smp_processor_id());
struct cpl_tx_pkt *cpl;
struct sk_buff *orig_skb = skb;
int ret;
@@ -1856,6 +1858,18 @@ int t1_start_xmit(struct sk_buff *skb, struct net_device 
*dev)
if (skb->protocol == htons(ETH_P_CPL5))
goto send;
 
+   /*
+* We are using a non-standard hard_header_len.
+* Allocate more header room in the rare cases it is not big enough.
+*/
+   if (unlikely(skb_headroom(skb) < dev->hard_header_len - ETH_HLEN)) {
+   skb = skb_realloc_headroom(skb, sizeof(struct cpl_tx_pkt_lso));
+   ++st->tx_need_hdrroom;
+   dev_kfree_skb_any(orig_skb);
+   if (!skb)
+   return NETDEV_TX_OK;
+   }
+
if (skb_shinfo(skb)->gso_size) {
int eth_type;
struct cpl_tx_pkt_lso *hdr;
@@ -1889,24 +1903,6 @@ int t1_start_xmit(struct sk_buff *skb, struct net_device 
*dev)
return NETDEV_TX_OK;
}
 
-   /*
-* We are using a non-standard hard_header_len and some kernel
-* components, such as pktgen, do not handle it right.
-* Complain when this happens but try to fix things up.
-*/
-   if (unlikely(skb_headroom(skb) < dev->hard_header_len - 
ETH_HLEN)) {
-   pr_debug("%s: headroom %d header_len %d\n", dev->name,
-skb_headroom(skb), dev->hard_header_len);
-
-   if (net_ratelimit())
-   printk(KERN_ERR "%s: inadequate headroom in "
-  "Tx packet\n", dev->name);
-   skb = skb_realloc_headroom(skb, sizeof(*cpl));
-   dev_kfree_skb_any(orig_skb);
-   if (!skb)
-   return NETDEV_TX_OK;
-   }
-
if (!(adapter->flags & UDP_CSUM_CAPABLE) &&
skb->ip_summed == CHECKSUM_PARTIAL &&
ip_hdr(skb)->protocol == IPPROTO_UDP) {
diff --git a/drivers/net/chelsio/sge.h b/drivers/net/chelsio/sge.h
old mode 100644
new mode 100755
index 713d9c5..285bbb2
--- a/drivers/net/chelsio/sge.h
+++ b/drivers/net/chelsio/sge.h
@@ -64,6 +64,7 @@ struct sge_port_stats {
u64 tx_tso;  /* # of TSO requests */
u64 vlan_xtract; /* # of VLAN tag extractions */
u64 vlan_insert; /* # of VLAN tag insertions */
+   u64 tx_need_hdrroom; /* # of TX skbs in need of more header room */
 };
 
 struct sk_buff;
-
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[PATCH 0/3] cxgb - driver fixes.

2007-11-27 Thread Divy Le Ray

Jeff,

I'm submitting a patch series for inclusion in 2.6.24 for the cxgb driver.
The patches are built against Linus'git tree.

Here is a brief description:
- Ensure that GSO skbs have enough headroom before encapsulating them,
- Fix a crash in NAPI mode,
- Fix statistics accounting and report.

Cheers,
Divy


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[PATCH 2/9 RESEND] cxgb3 - Use wild card for PCI subdevice ID match

2007-11-16 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Subdevice ID is not necessarily set to 1. 
Use wild card for PCI device matching

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/cxgb3_main.c |   24 
 1 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index bb0d1c8..d92da8f 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -76,20 +76,20 @@ enum {
 
 #define EEPROM_MAGIC 0x38E2F10C
 
-#define CH_DEVICE(devid, ssid, idx) \
-   { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, ssid, 0, 0, idx }
+#define CH_DEVICE(devid, idx) \
+   { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, PCI_ANY_ID, 0, 0, idx }
 
 static const struct pci_device_id cxgb3_pci_tbl[] = {
-   CH_DEVICE(0x20, 1, 0),  /* PE9000 */
-   CH_DEVICE(0x21, 1, 1),  /* T302E */
-   CH_DEVICE(0x22, 1, 2),  /* T310E */
-   CH_DEVICE(0x23, 1, 3),  /* T320X */
-   CH_DEVICE(0x24, 1, 1),  /* T302X */
-   CH_DEVICE(0x25, 1, 3),  /* T320E */
-   CH_DEVICE(0x26, 1, 2),  /* T310X */
-   CH_DEVICE(0x30, 1, 2),  /* T3B10 */
-   CH_DEVICE(0x31, 1, 3),  /* T3B20 */
-   CH_DEVICE(0x32, 1, 1),  /* T3B02 */
+   CH_DEVICE(0x20, 0), /* PE9000 */
+   CH_DEVICE(0x21, 1), /* T302E */
+   CH_DEVICE(0x22, 2), /* T310E */
+   CH_DEVICE(0x23, 3), /* T320X */
+   CH_DEVICE(0x24, 1), /* T302X */
+   CH_DEVICE(0x25, 3), /* T320E */
+   CH_DEVICE(0x26, 2), /* T310X */
+   CH_DEVICE(0x30, 2), /* T3B10 */
+   CH_DEVICE(0x31, 3), /* T3B20 */
+   CH_DEVICE(0x32, 1), /* T3B02 */
{0,}
 };
 
-
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Re: [PATCH 2/9] cxgb3 - Use wild card for PCI vendor ID match

2007-11-16 Thread Divy Le Ray

Divy Le Ray wrote:

From: Divy Le Ray <[EMAIL PROTECTED]>

Vendor ID is not necessarily set to 1. 
  

This patch modifies the sub-device id, not the vendor id ...


Use Vendor Id wild card for PCI device matching

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/cxgb3_main.c |   24 
 1 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index bb0d1c8..d92da8f 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -76,20 +76,20 @@ enum {
 
 #define EEPROM_MAGIC 0x38E2F10C
 
-#define CH_DEVICE(devid, ssid, idx) \

-   { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, ssid, 0, 0, idx }
+#define CH_DEVICE(devid, idx) \
+   { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, PCI_ANY_ID, 0, 0, idx }
 
 static const struct pci_device_id cxgb3_pci_tbl[] = {

-   CH_DEVICE(0x20, 1, 0),  /* PE9000 */
-   CH_DEVICE(0x21, 1, 1),  /* T302E */
-   CH_DEVICE(0x22, 1, 2),  /* T310E */
-   CH_DEVICE(0x23, 1, 3),  /* T320X */
-   CH_DEVICE(0x24, 1, 1),  /* T302X */
-   CH_DEVICE(0x25, 1, 3),  /* T320E */
-   CH_DEVICE(0x26, 1, 2),  /* T310X */
-   CH_DEVICE(0x30, 1, 2),  /* T3B10 */
-   CH_DEVICE(0x31, 1, 3),  /* T3B20 */
-   CH_DEVICE(0x32, 1, 1),  /* T3B02 */
+   CH_DEVICE(0x20, 0), /* PE9000 */
+   CH_DEVICE(0x21, 1), /* T302E */
+   CH_DEVICE(0x22, 2), /* T310E */
+   CH_DEVICE(0x23, 3), /* T320X */
+   CH_DEVICE(0x24, 1), /* T302X */
+   CH_DEVICE(0x25, 3), /* T320E */
+   CH_DEVICE(0x26, 2), /* T310X */
+   CH_DEVICE(0x30, 2), /* T3B10 */
+   CH_DEVICE(0x31, 3), /* T3B20 */
+   CH_DEVICE(0x32, 1), /* T3B02 */
{0,}
 };
 
-

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[PATCH 9/9] cxgb3 - Fix I/O synchronization

2007-11-16 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Synchronize memory access before ringing 
the Tx door bell.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/sge.c |7 +--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index 7b13d8a..666c317 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -174,6 +174,7 @@ static inline struct sge_qset *txq_to_qset(const struct 
sge_txq *q, int qidx)
 static inline void refill_rspq(struct adapter *adapter,
   const struct sge_rspq *q, unsigned int credits)
 {
+   rmb();
t3_write_reg(adapter, A_SG_RSPQ_CREDIT_RETURN,
 V_RSPQ(q->cntxt_id) | V_CREDITS(credits));
 }
@@ -458,7 +459,7 @@ nomem:  q->alloc_failed++;
}
q->credits++;
}
-
+   wmb();
t3_write_reg(adap, A_SG_KDOORBELL, V_EGRCNTX(q->cntxt_id));
 }
 
@@ -1353,6 +1354,7 @@ static void restart_ctrlq(unsigned long data)
}
 
spin_unlock(&q->lock);
+   wmb();
t3_write_reg(qs->adap, A_SG_KDOORBELL,
 F_SELEGRCNTX | V_EGRCNTX(q->cntxt_id));
 }
@@ -1572,6 +1574,7 @@ static void restart_offloadq(unsigned long data)
set_bit(TXQ_RUNNING, &q->flags);
set_bit(TXQ_LAST_PKT_DB, &q->flags);
 #endif
+   wmb();
t3_write_reg(adap, A_SG_KDOORBELL,
 F_SELEGRCNTX | V_EGRCNTX(q->cntxt_id));
 }
@@ -1737,7 +1740,6 @@ static inline int rx_offload(struct t3cdev *tdev, struct 
sge_rspq *rq,
 struct sk_buff *skb, struct sk_buff *rx_gather[],
 unsigned int gather_idx)
 {
-   rq->offload_pkts++;
skb_reset_mac_header(skb);
skb_reset_network_header(skb);
skb_reset_transport_header(skb);
@@ -2031,6 +2033,7 @@ no_mem:
if (eth)
rx_eth(adap, q, skb, ethpad);
else {
+   q->offload_pkts++;
/* Preserve the RSS info in csum & priority */
skb->csum = rss_hi;
skb->priority = rss_lo;
-
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[PATCH 7/9] cxgb3 - sysfs methods clean up

2007-11-16 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Remove unused argument in sysfs methods

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/cxgb3_main.c |   19 +--
 1 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index 1b9a711..b4ee18b 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -410,8 +410,7 @@ static int setup_sge_qsets(struct adapter *adap)
return 0;
 }
 
-static ssize_t attr_show(struct device *d, struct device_attribute *attr,
-char *buf,
+static ssize_t attr_show(struct device *d, char *buf,
 ssize_t(*format) (struct net_device *, char *))
 {
ssize_t len;
@@ -423,7 +422,7 @@ static ssize_t attr_show(struct device *d, struct 
device_attribute *attr,
return len;
 }
 
-static ssize_t attr_store(struct device *d, struct device_attribute *attr,
+static ssize_t attr_store(struct device *d,
  const char *buf, size_t len,
  ssize_t(*set) (struct net_device *, unsigned int),
  unsigned int min_val, unsigned int max_val)
@@ -457,7 +456,7 @@ static ssize_t format_##name(struct net_device *dev, char 
*buf) \
 static ssize_t show_##name(struct device *d, struct device_attribute *attr, \
   char *buf) \
 { \
-   return attr_show(d, attr, buf, format_##name); \
+   return attr_show(d, buf, format_##name); \
 }
 
 static ssize_t set_nfilters(struct net_device *dev, unsigned int val)
@@ -480,7 +479,7 @@ static ssize_t set_nfilters(struct net_device *dev, 
unsigned int val)
 static ssize_t store_nfilters(struct device *d, struct device_attribute *attr,
  const char *buf, size_t len)
 {
-   return attr_store(d, attr, buf, len, set_nfilters, 0, ~0);
+   return attr_store(d, buf, len, set_nfilters, 0, ~0);
 }
 
 static ssize_t set_nservers(struct net_device *dev, unsigned int val)
@@ -500,7 +499,7 @@ static ssize_t set_nservers(struct net_device *dev, 
unsigned int val)
 static ssize_t store_nservers(struct device *d, struct device_attribute *attr,
  const char *buf, size_t len)
 {
-   return attr_store(d, attr, buf, len, set_nservers, 0, ~0);
+   return attr_store(d, buf, len, set_nservers, 0, ~0);
 }
 
 #define CXGB3_ATTR_R(name, val_expr) \
@@ -524,7 +523,7 @@ static struct attribute *cxgb3_attrs[] = {
 
 static struct attribute_group cxgb3_attr_group = {.attrs = cxgb3_attrs };
 
-static ssize_t tm_attr_show(struct device *d, struct device_attribute *attr,
+static ssize_t tm_attr_show(struct device *d,
char *buf, int sched)
 {
struct port_info *pi = netdev_priv(to_net_dev(d));
@@ -550,7 +549,7 @@ static ssize_t tm_attr_show(struct device *d, struct 
device_attribute *attr,
return len;
 }
 
-static ssize_t tm_attr_store(struct device *d, struct device_attribute *attr,
+static ssize_t tm_attr_store(struct device *d,
 const char *buf, size_t len, int sched)
 {
struct port_info *pi = netdev_priv(to_net_dev(d));
@@ -578,12 +577,12 @@ static ssize_t tm_attr_store(struct device *d, struct 
device_attribute *attr,
 static ssize_t show_##name(struct device *d, struct device_attribute *attr, \
   char *buf) \
 { \
-   return tm_attr_show(d, attr, buf, sched); \
+   return tm_attr_show(d, buf, sched); \
 } \
 static ssize_t store_##name(struct device *d, struct device_attribute *attr, \
const char *buf, size_t len) \
 { \
-   return tm_attr_store(d, attr, buf, len, sched); \
+   return tm_attr_store(d, buf, len, sched); \
 } \
 static DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_##name, store_##name)
 
-
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[PATCH 8/9] cxgb3 - HW set up updates

2007-11-16 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Disable PEX errors. The HW generates false positives.
Update RSS hash function to a symmetric algorithm.
Update T3C HW support

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/cxgb3_main.c |2 +-
 drivers/net/cxgb3/regs.h   |   22 ++
 drivers/net/cxgb3/t3_hw.c  |   24 +---
 3 files changed, 44 insertions(+), 4 deletions(-)

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index b4ee18b..f24a27b 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -336,7 +336,7 @@ static void setup_rss(struct adapter *adap)
 
t3_config_rss(adap, F_RQFEEDBACKENABLE | F_TNLLKPEN | F_TNLMAPEN |
  F_TNLPRTEN | F_TNL2TUPEN | F_TNL4TUPEN |
- V_RRCPLCPUSIZE(6), cpus, rspq_map);
+ V_RRCPLCPUSIZE(6) | F_HASHTOEPLITZ, cpus, rspq_map);
 }
 
 static void init_napi(struct adapter *adap)
diff --git a/drivers/net/cxgb3/regs.h b/drivers/net/cxgb3/regs.h
index 5e1bc0d..a7d5f65 100644
--- a/drivers/net/cxgb3/regs.h
+++ b/drivers/net/cxgb3/regs.h
@@ -965,6 +965,12 @@
 #define V_LOCKTID(x) ((x) << S_LOCKTID)
 #define F_LOCKTIDV_LOCKTID(1U)
 
+#define S_TABLELATENCYDELTA0
+#define M_TABLELATENCYDELTA0xf
+#define V_TABLELATENCYDELTA(x) ((x) << S_TABLELATENCYDELTA)
+#define G_TABLELATENCYDELTA(x) \
+   (((x) >> S_TABLELATENCYDELTA) & M_TABLELATENCYDELTA)
+
 #define A_TP_PC_CONFIG2 0x34c
 
 #define S_CHDRAFULL4
@@ -1146,6 +1152,10 @@
 #define V_RQFEEDBACKENABLE(x) ((x) << S_RQFEEDBACKENABLE)
 #define F_RQFEEDBACKENABLEV_RQFEEDBACKENABLE(1U)
 
+#define S_HASHTOEPLITZ2
+#define V_HASHTOEPLITZ(x) ((x) << S_HASHTOEPLITZ)
+#define F_HASHTOEPLITZV_HASHTOEPLITZ(1U)
+
 #define S_DISABLE0
 
 #define A_TP_TM_PIO_ADDR 0x418
@@ -1198,6 +1208,14 @@
 
 #define A_TP_INT_ENABLE 0x470
 
+#define S_FLMTXFLSTEMPTY30
+#define V_FLMTXFLSTEMPTY(x) ((x) << S_FLMTXFLSTEMPTY)
+#define F_FLMTXFLSTEMPTYV_FLMTXFLSTEMPTY(1U)
+
+#define S_FLMRXFLSTEMPTY29
+#define V_FLMRXFLSTEMPTY(x) ((x) << S_FLMRXFLSTEMPTY)
+#define F_FLMRXFLSTEMPTYV_FLMRXFLSTEMPTY(1U)
+
 #define A_TP_INT_CAUSE 0x474
 
 #define A_TP_TX_MOD_Q1_Q0_RATE_LIMIT 0x8
@@ -1291,6 +1309,10 @@
 
 #define A_ULPTX_CONFIG 0x580
 
+#define S_CFG_CQE_SOP_MASK1
+#define V_CFG_CQE_SOP_MASK(x) ((x) << S_CFG_CQE_SOP_MASK)
+#define F_CFG_CQE_SOP_MASKV_CFG_CQE_SOP_MASK(1U)
+
 #define S_CFG_RR_ARB0
 #define V_CFG_RR_ARB(x) ((x) << S_CFG_RR_ARB)
 #define F_CFG_RR_ARBV_CFG_RR_ARB(1U)
diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index 4b6087a..b8ae12d 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -1280,7 +1280,7 @@ static int t3_handle_intr_status(struct adapter *adapter, 
unsigned int reg,
 #define PCIE_INTR_MASK (F_UNXSPLCPLERRR | F_UNXSPLCPLERRC | F_PCIE_PIOPARERR |\
F_PCIE_WFPARERR | F_PCIE_RFPARERR | F_PCIE_CFPARERR | \
/* V_PCIE_MSIXPARERR(M_PCIE_MSIXPARERR) | */ \
-   V_BISTERR(M_BISTERR) | F_PEXERR)
+   V_BISTERR(M_BISTERR))
 #define ULPRX_INTR_MASK F_PARERR
 #define ULPTX_INTR_MASK 0
 #define CPLSW_INTR_MASK (F_TP_FRAMING_ERROR | \
@@ -1383,8 +1383,16 @@ static void tp_intr_handler(struct adapter *adapter)
{0}
};
 
+   static struct intr_info tp_intr_info_t3c[] = {
+   { 0x1ff,  "TP parity error", -1, 1 },
+   { F_FLMRXFLSTEMPTY, "TP out of Rx pages", -1, 1 },
+   { F_FLMTXFLSTEMPTY, "TP out of Tx pages", -1, 1 },
+   { 0 }
+   };
+
if (t3_handle_intr_status(adapter, A_TP_INT_CAUSE, 0x,
- tp_intr_info, NULL))
+ adapter->params.rev < T3_REV_C ?
+   tp_intr_info : tp_intr_info_t3c, NULL))
t3_fatal_err(adapter);
 }
 
@@ -1734,7 +1742,6 @@ void t3_intr_enable(struct adapter *adapter)
 MC7_INTR_MASK},
{A_MC5_DB_INT_ENABLE, MC5_INTR_MASK},
{A_ULPRX_INT_ENABLE, ULPRX_INTR_MASK},
-   {A_TP_INT_ENABLE, 0x3bf},
{A_PM1_TX_INT_ENABLE, PMTX_INTR_MASK},
{A_PM1_RX_INT_ENABLE, PMRX_INTR_MASK},
{A_CIM_HOST_INT_ENABLE, CIM_INTR_MASK},
@@ -1744,6 +1751,8 @@ void t3_intr_enable(struct adapter *adapter)
adapter->slow_intr_mask = PL_INTR_MASK;
 
t3_write_regs(adapter, intr_en_avp, ARRAY_SIZE(intr_en_avp), 0);
+   t3_write_reg(adapter, A_TP_INT_ENABLE,
+adapter->params.rev >= T3_REV_C ? 0x2bf : 0x3bf);
 
if (adapter->params.rev > 0) {
t3_write_reg(adapter, A_CPL_INTR_ENABLE,
@@ -2509,6 +2518,11 @

[PATCH 6/9] cxgb3 - fix interaction with pktgen

2007-11-16 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Do not use skb->cb to stash unmap info,
save the info to the descriptor state.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/sge.c |   82 +++
 1 files changed, 40 insertions(+), 42 deletions(-)

diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index c15e43a..7b13d8a 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -91,6 +91,10 @@ struct rx_desc {
 
 struct tx_sw_desc {/* SW state per Tx descriptor */
struct sk_buff *skb;
+   u8 eop;   /* set if last descriptor for packet */
+   u8 addr_idx;  /* buffer index of first SGL entry in descriptor */
+   u8 fragidx;   /* first page fragment associated with descriptor */
+   s8 sflit; /* start flit of first SGL entry in descriptor */
 };
 
 struct rx_sw_desc {/* SW state per Rx descriptor */
@@ -109,13 +113,6 @@ struct rsp_desc {  /* response queue descriptor */
u8 intr_gen;
 };
 
-struct unmap_info {/* packet unmapping info, overlays skb->cb */
-   int sflit;  /* start flit of first SGL entry in Tx 
descriptor */
-   u16 fragidx;/* first page fragment in current Tx descriptor 
*/
-   u16 addr_idx;   /* buffer index of first SGL entry in 
descriptor */
-   u32 len;/* mapped length of skb main body */
-};
-
 /*
  * Holds unmapping information for Tx packets that need deferred unmapping.
  * This structure lives at skb->head and must be allocated by callers.
@@ -209,32 +206,36 @@ static inline int need_skb_unmap(void)
  *
  * Unmap the main body of an sk_buff and its page fragments, if any.
  * Because of the fairly complicated structure of our SGLs and the desire
- * to conserve space for metadata, we keep the information necessary to
- * unmap an sk_buff partly in the sk_buff itself (in its cb), and partly
- * in the Tx descriptors (the physical addresses of the various data
- * buffers).  The send functions initialize the state in skb->cb so we
- * can unmap the buffers held in the first Tx descriptor here, and we
- * have enough information at this point to update the state for the next
- * Tx descriptor.
+ * to conserve space for metadata, the information necessary to unmap an
+ * sk_buff is spread across the sk_buff itself (buffer lengths), the HW Tx
+ * descriptors (the physical addresses of the various data buffers), and
+ * the SW descriptor state (assorted indices).  The send functions
+ * initialize the indices for the first packet descriptor so we can unmap
+ * the buffers held in the first Tx descriptor here, and we have enough
+ * information at this point to set the state for the next Tx descriptor.
+ *
+ * Note that it is possible to clean up the first descriptor of a packet
+ * before the send routines have written the next descriptors, but this
+ * race does not cause any problem.  We just end up writing the unmapping
+ * info for the descriptor first.
  */
 static inline void unmap_skb(struct sk_buff *skb, struct sge_txq *q,
 unsigned int cidx, struct pci_dev *pdev)
 {
const struct sg_ent *sgp;
-   struct unmap_info *ui = (struct unmap_info *)skb->cb;
-   int nfrags, frag_idx, curflit, j = ui->addr_idx;
+   struct tx_sw_desc *d = &q->sdesc[cidx];
+   int nfrags, frag_idx, curflit, j = d->addr_idx;
 
-   sgp = (struct sg_ent *)&q->desc[cidx].flit[ui->sflit];
+   sgp = (struct sg_ent *)&q->desc[cidx].flit[d->sflit];
+   frag_idx = d->fragidx;
 
-   if (ui->len) {
-   pci_unmap_single(pdev, be64_to_cpu(sgp->addr[0]), ui->len,
-PCI_DMA_TODEVICE);
-   ui->len = 0;/* so we know for next descriptor for this skb 
*/
+   if (frag_idx == 0 && skb_headlen(skb)) {
+   pci_unmap_single(pdev, be64_to_cpu(sgp->addr[0]),
+skb_headlen(skb), PCI_DMA_TODEVICE);
j = 1;
}
 
-   frag_idx = ui->fragidx;
-   curflit = ui->sflit + 1 + j;
+   curflit = d->sflit + 1 + j;
nfrags = skb_shinfo(skb)->nr_frags;
 
while (frag_idx < nfrags && curflit < WR_FLITS) {
@@ -250,10 +251,11 @@ static inline void unmap_skb(struct sk_buff *skb, struct 
sge_txq *q,
frag_idx++;
}
 
-   if (frag_idx < nfrags) {/* SGL continues into next Tx 
descriptor */
-   ui->fragidx = frag_idx;
-   ui->addr_idx = j;
-   ui->sflit = curflit - WR_FLITS - j; /* sflit can be -1 */
+   if (frag_idx < nfrags) {   /* SGL continues into next Tx descriptor */
+   d = cidx + 1 == q->size ? q->sde

[PATCH 5/9] cxgb3 - FW upgrade

2007-11-16 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Bump up FW version to 5.0.
Do not downgrade FW within the same major version range.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/t3_hw.c   |   10 +++---
 drivers/net/cxgb3/version.h |4 ++--
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index d4ee00d..4b6087a 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -988,13 +988,17 @@ int t3_check_fw_version(struct adapter *adapter, int 
*must_load)
CH_ERR(adapter, "found wrong FW version(%u.%u), "
   "driver needs version %u.%u\n", major, minor,
   FW_VERSION_MAJOR, FW_VERSION_MINOR);
-   else {
+   else if (minor < FW_VERSION_MINOR) {
*must_load = 0;
-   CH_WARN(adapter, "found wrong FW minor version(%u.%u), "
+   CH_WARN(adapter, "found old FW minor version(%u.%u), "
+   "driver compiled for version %u.%u\n", major, minor,
+   FW_VERSION_MAJOR, FW_VERSION_MINOR);
+   } else {
+   CH_WARN(adapter, "found newer FW version(%u.%u), "
"driver compiled for version %u.%u\n", major, minor,
FW_VERSION_MAJOR, FW_VERSION_MINOR);
+   return 0;
}
-
return -EINVAL;
 }
 
diff --git a/drivers/net/cxgb3/version.h b/drivers/net/cxgb3/version.h
index ef1c633..229303f 100644
--- a/drivers/net/cxgb3/version.h
+++ b/drivers/net/cxgb3/version.h
@@ -38,7 +38,7 @@
 #define DRV_VERSION "1.0-ko"
 
 /* Firmware version */
-#define FW_VERSION_MAJOR 4
-#define FW_VERSION_MINOR 6
+#define FW_VERSION_MAJOR 5
+#define FW_VERSION_MINOR 0
 #define FW_VERSION_MICRO 0
 #endif /* __CHELSIO_VERSION_H */
-
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[PATCH 4/9] cxgb3 - Add EEH support

2007-11-16 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Add PCI recovery support

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/cxgb3_main.c |  107 
 1 files changed, 107 insertions(+), 0 deletions(-)

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index 9d14652..1b9a711 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -2316,6 +2316,112 @@ void t3_fatal_err(struct adapter *adapter)
 
 }
 
+/**
+ * t3_io_error_detected - called when PCI error is detected
+ * @pdev: Pointer to PCI device
+ * @state: The current pci connection state
+ *
+ * This function is called after a PCI bus error affecting
+ * this device has been detected.
+ */
+static pci_ers_result_t t3_io_error_detected(struct pci_dev *pdev,
+pci_channel_state_t state)
+{
+   struct net_device *dev = pci_get_drvdata(pdev);
+   struct port_info *pi = netdev_priv(dev);
+   struct adapter *adapter = pi->adapter;
+   int i;
+
+   /* Stop all ports */
+   for_each_port(adapter, i) {
+   struct net_device *netdev = adapter->port[i];
+
+   if (netif_running(netdev))
+   cxgb_close(netdev);
+   }
+
+   if (is_offload(adapter) && 
+   test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map))
+   offload_close(&adapter->tdev);
+
+   /* Free sge resources */
+   t3_free_sge_resources(adapter);
+
+   adapter->flags &= ~FULL_INIT_DONE;
+
+   pci_disable_device(pdev);
+
+   /* Request a slot slot reset. */
+   return PCI_ERS_RESULT_NEED_RESET;
+}
+
+/**
+ * t3_io_slot_reset - called after the pci bus has been reset.
+ * @pdev: Pointer to PCI device
+ *
+ * Restart the card from scratch, as if from a cold-boot.
+ */
+static pci_ers_result_t t3_io_slot_reset(struct pci_dev *pdev)
+{
+   struct net_device *dev = pci_get_drvdata(pdev);
+   struct port_info *pi = netdev_priv(dev);
+   struct adapter *adapter = pi->adapter;
+
+   if (pci_enable_device(pdev)) {
+   dev_err(&pdev->dev,
+   "Cannot re-enable PCI device after reset.\n");
+   return PCI_ERS_RESULT_DISCONNECT;
+   }
+   pci_set_master(pdev);
+
+   t3_prep_adapter(adapter, adapter->params.info, 1);
+
+   return PCI_ERS_RESULT_RECOVERED;
+}
+
+/**
+ * t3_io_resume - called when traffic can start flowing again.
+ * @pdev: Pointer to PCI device
+ *
+ * This callback is called when the error recovery driver tells us that
+ * its OK to resume normal operation.
+ */
+static void t3_io_resume(struct pci_dev *pdev)
+{
+   struct net_device *dev = pci_get_drvdata(pdev);
+   struct port_info *pi = netdev_priv(dev);
+   struct adapter *adapter = pi->adapter;
+   int i;
+
+   /* Restart the ports */
+   for_each_port(adapter, i) {
+   struct net_device *netdev = adapter->port[i];
+
+   if (netif_running(netdev)) {
+   if (cxgb_open(netdev)) {
+   dev_err(&pdev->dev,
+   "can't bring device back up"
+   " after reset\n");
+   continue;
+   }
+   netif_device_attach(netdev);
+   }
+   }
+
+   if (is_offload(adapter)) {
+   __set_bit(OFFLOAD_DEVMAP_BIT, &adapter->registered_device_map);
+   if (offload_open(dev))
+   printk(KERN_WARNING
+  "Could not bring back offload capabilities\n");
+   }
+}
+
+static struct pci_error_handlers t3_err_handler = {
+   .error_detected = t3_io_error_detected,
+   .slot_reset = t3_io_slot_reset,
+   .resume = t3_io_resume,
+};
+
 static int __devinit cxgb_enable_msix(struct adapter *adap)
 {
struct msix_entry entries[SGE_QSETS + 1];
@@ -2616,6 +2722,7 @@ static struct pci_driver driver = {
.id_table = cxgb3_pci_tbl,
.probe = init_one,
.remove = __devexit_p(remove_one),
+   .err_handler = &t3_err_handler,
 };
 
 static int __init cxgb3_init_module(void)
-
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[PATCH 3/9] cxgb3 - Fix resources release.

2007-11-16 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Remove sysfs entries before unregistering the net devices.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/cxgb3_main.c |8 
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index d92da8f..9d14652 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -2585,10 +2585,6 @@ static void __devexit remove_one(struct pci_dev *pdev)
sysfs_remove_group(&adapter->port[0]->dev.kobj,
   &cxgb3_attr_group);
 
-   for_each_port(adapter, i)
-   if (test_bit(i, &adapter->registered_device_map))
-   unregister_netdev(adapter->port[i]);
-
if (is_offload(adapter)) {
cxgb3_adapter_unofld(adapter);
if (test_bit(OFFLOAD_DEVMAP_BIT,
@@ -2596,6 +2592,10 @@ static void __devexit remove_one(struct pci_dev *pdev)
offload_close(&adapter->tdev);
}
 
+   for_each_port(adapter, i)
+   if (test_bit(i, &adapter->registered_device_map))
+   unregister_netdev(adapter->port[i]);
+
t3_free_sge_resources(adapter);
cxgb_disable_msi(adapter);
 
-
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[PATCH 2/9] cxgb3 - Use wild card for PCI vendor ID match

2007-11-16 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Vendor ID is not necessarily set to 1. 
Use Vendor Id wild card for PCI device matching

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/cxgb3_main.c |   24 
 1 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index bb0d1c8..d92da8f 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -76,20 +76,20 @@ enum {
 
 #define EEPROM_MAGIC 0x38E2F10C
 
-#define CH_DEVICE(devid, ssid, idx) \
-   { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, ssid, 0, 0, idx }
+#define CH_DEVICE(devid, idx) \
+   { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, PCI_ANY_ID, 0, 0, idx }
 
 static const struct pci_device_id cxgb3_pci_tbl[] = {
-   CH_DEVICE(0x20, 1, 0),  /* PE9000 */
-   CH_DEVICE(0x21, 1, 1),  /* T302E */
-   CH_DEVICE(0x22, 1, 2),  /* T310E */
-   CH_DEVICE(0x23, 1, 3),  /* T320X */
-   CH_DEVICE(0x24, 1, 1),  /* T302X */
-   CH_DEVICE(0x25, 1, 3),  /* T320E */
-   CH_DEVICE(0x26, 1, 2),  /* T310X */
-   CH_DEVICE(0x30, 1, 2),  /* T3B10 */
-   CH_DEVICE(0x31, 1, 3),  /* T3B20 */
-   CH_DEVICE(0x32, 1, 1),  /* T3B02 */
+   CH_DEVICE(0x20, 0), /* PE9000 */
+   CH_DEVICE(0x21, 1), /* T302E */
+   CH_DEVICE(0x22, 2), /* T310E */
+   CH_DEVICE(0x23, 3), /* T320X */
+   CH_DEVICE(0x24, 1), /* T302X */
+   CH_DEVICE(0x25, 3), /* T320E */
+   CH_DEVICE(0x26, 2), /* T310X */
+   CH_DEVICE(0x30, 2), /* T3B10 */
+   CH_DEVICE(0x31, 3), /* T3B20 */
+   CH_DEVICE(0x32, 1), /* T3B02 */
{0,}
 };
 
-
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[PATCH 1/9] cxgb3 - fix MSI-X failure path

2007-11-16 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Return error code when msi-x settings fail.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/cxgb3_main.c |3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index 61ffc92..bb0d1c8 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -839,7 +839,8 @@ static int cxgb_up(struct adapter *adap)
if (err)
goto irq_err;
 
-   if (request_msix_data_irqs(adap)) {
+   err = request_msix_data_irqs(adap);
+   if (err) {
free_irq(adap->msix_info[0].vec, adap);
goto irq_err;
}
-
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[PATCH 0/9] cxgb3 - driver update

2007-11-16 Thread Divy Le Ray

Jeff, Dave,

I'm submitting a patch series for inclusion in 2.6.25.
The patches are built against netdev#upstream.

Here is a brief description:
- Fix error path when requesting MSI-X resources
- Use wild card for PCI Vendor ID
- Fix sysfs resource release
- Add PCI error recovery support
- FW upgrade
- Fix interaction with pktgen
- Remove unused argument in sysfs related methods
- HW setup update
- Synchronize I/O access on Tx path

Cheers,
Divy


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[PATCH] chelsio - Fix skb->dev setting

2007-11-15 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

eth_type_trans() now sets skb->dev. 
Access skb->def after it gets set.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/chelsio/sge.c |2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c
index ffa7e64..4436662 100644
--- a/drivers/net/chelsio/sge.c
+++ b/drivers/net/chelsio/sge.c
@@ -1379,11 +1379,11 @@ static void sge_rx(struct sge *sge, struct freelQ *fl, 
unsigned int len)
}
__skb_pull(skb, sizeof(*p));
 
-   skb->dev->last_rx = jiffies;
st = per_cpu_ptr(sge->port_stats[p->iff], smp_processor_id());
st->rx_packets++;
 
skb->protocol = eth_type_trans(skb, adapter->port[p->iff].dev);
+   skb->dev->last_rx = jiffies;
if ((adapter->flags & RX_CSUM_ENABLED) && p->csum == 0x &&
skb->protocol == htons(ETH_P_IP) &&
(skb->data[9] == IPPROTO_TCP || skb->data[9] == IPPROTO_UDP)) {
-
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[PATCH net-2.6.24] cxgb3 - napi update

2007-09-09 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Embed napi_struct directly into sge_qset.
Use napi_schedule/napi_complete.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/adapter.h|   20 +++---
 drivers/net/cxgb3/cxgb3_main.c |   57 ++
 drivers/net/cxgb3/sge.c|   77 +++-
 3 files changed, 55 insertions(+), 99 deletions(-)

diff --git a/drivers/net/cxgb3/adapter.h b/drivers/net/cxgb3/adapter.h
index e723e7b..0442617 100644
--- a/drivers/net/cxgb3/adapter.h
+++ b/drivers/net/cxgb3/adapter.h
@@ -49,11 +49,13 @@
 typedef irqreturn_t(*intr_handler_t) (int, void *);
 
 struct vlan_group;
-
 struct adapter;
+struct sge_qset;
+
 struct port_info {
struct adapter *adapter;
struct vlan_group *vlan_grp;
+   struct sge_qset *qs;
const struct port_type_info *port_type;
u8 port_id;
u8 rx_csum_offload;
@@ -172,12 +174,12 @@ enum {/* per port SGE 
statistics */
SGE_PSTAT_MAX   /* must be last */
 };
 
-struct adapter_napi;
 struct sge_qset {  /* an SGE queue set */
+   struct adapter *adap;
+   struct napi_struct napi;
struct sge_rspq rspq;
struct sge_fl fl[SGE_RXQ_PER_SET];
struct sge_txq txq[SGE_TXQ_PER_SET];
-   struct adapter_napi *anapi;
struct net_device *netdev;
unsigned long txq_stopped;  /* which Tx queues are stopped */
struct timer_list tx_reclaim_timer; /* reclaims TX buffers */
@@ -189,13 +191,6 @@ struct sge {
spinlock_t reg_lock;/* guards non-atomic SGE registers (eg context) 
*/
 };
 
-struct adapter_napi {
-   struct napi_struct napi;
-   struct adapter *adapter;
-   int port;
-   int qset;
-};
-
 struct adapter {
struct t3cdev tdev;
struct list_head adapter_list;
@@ -230,8 +225,6 @@ struct adapter {
struct delayed_work adap_check_task;
struct work_struct ext_intr_handler_task;
 
-   struct adapter_napi napi[SGE_QSETS];
-
struct dentry *debugfs_root;
 
struct mutex mdio_lock;
@@ -283,8 +276,7 @@ int t3_mgmt_tx(struct adapter *adap, struct sk_buff *skb);
 void t3_update_qset_coalesce(struct sge_qset *qs, const struct qset_params *p);
 int t3_sge_alloc_qset(struct adapter *adapter, unsigned int id, int nports,
  int irq_vec_idx, const struct qset_params *p,
- int ntxq, struct adapter_napi *anapi,
- struct net_device *dev);
+ int ntxq, struct net_device *dev);
 int t3_get_desc(const struct sge_qset *qs, unsigned int qnum, unsigned int idx,
unsigned char *data);
 irqreturn_t t3_sge_intr_msix(int irq, void *cookie);
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index f5ce06d..5db7d4e 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -339,24 +339,17 @@ static void setup_rss(struct adapter *adap)
  V_RRCPLCPUSIZE(6), cpus, rspq_map);
 }
 
-static int init_napi(struct adapter *adap)
+static void init_napi(struct adapter *adap)
 {
-   int i, j, napi_idx = 0;
+   int i;
 
-   for_each_port(adap, i) {
-   struct net_device *dev = adap->port[i];
-   const struct port_info *pi = netdev_priv(dev);
+   for (i = 0; i < SGE_QSETS; i++) {
+   struct sge_qset *qs = &adap->sge.qs[i];
 
-   for (j = 0; j < pi->nqsets - 1; j++) {
-   netif_napi_add(dev, &adap->napi[napi_idx].napi,
-  NULL, 64);
-   adap->napi[napi_idx].adapter = adap;
-   adap->napi[napi_idx].port = i;
-   adap->napi[napi_idx].qset = j;
-   napi_idx++;
-   }
+   if (qs->adap)
+   netif_napi_add(qs->netdev, &qs->napi, qs->napi.poll,
+  64);
}
-   return 0;
 }
 
 /*
@@ -368,20 +361,17 @@ static void quiesce_rx(struct adapter *adap)
 {
int i;
 
-   for (i = 0; i < ARRAY_SIZE(adap->napi); i++) {
-   struct adapter_napi *anapi = &adap->napi[i];
-   napi_disable(&anapi->napi);
-   }
+   for (i = 0; i < SGE_QSETS; i++)
+   if (adap->sge.qs[i].adap)
+   napi_disable(&adap->sge.qs[i].napi);
 }
 
 static void enable_all_napi(struct adapter *adap)
 {
int i;
-
-   for (i = 0; i < ARRAY_SIZE(adap->napi); i++) {
-   struct adapter_napi *anapi = &adap->napi[i];
-   napi_enable(&anapi->napi);
-   }
+   for (i = 0; i < SGE_QSETS; i++)
+   if (adap->sge.qs[i].adap)
+   napi_enable(&adap->sge.qs[

net-26.24 broken with XFRM off

2007-09-06 Thread Divy Le Ray

Hi Dave,

I get this error compiling net-2.6.24 with XFRM off:

[EMAIL PROTECTED] net-2.6.24]# make O=/opt/build/net-2.6.24
fatal: corrupted pack file 
.git/objects/pack/pack-39c494e9d4c6488e5911ee5c06926450679e6b78.pack
fatal: corrupted pack file 
.git/objects/pack/pack-39c494e9d4c6488e5911ee5c06926450679e6b78.pack

 Using /mnt/net-2.6.24 as source for kernel
 GEN /opt/build/net-2.6.24/Makefile
 CHK include/linux/version.h
 CHK include/linux/utsrelease.h
 CALL/mnt/net-2.6.24/scripts/checksyscalls.sh
 CHK include/linux/compile.h
 GEN .version
 CHK include/linux/compile.h
 UPD include/linux/compile.h
 CC  init/version.o
 LD  init/built-in.o
 LD  .tmp_vmlinux1
net/built-in.o(.text+0x73ac2): In function `inet6_csk_xmit':
: undefined reference to `flow_cache_genid'
net/built-in.o(.text+0x73b9e): In function `inet6_csk_xmit':
: undefined reference to `flow_cache_genid'
make[1]: *** [.tmp_vmlinux1] Error 1
make: *** [_all] Error 2

I believe this commit introduced it:
commit a85d5450ddeb959bdf9e4603f9c06e9d79217cfa
Author: Noriaki TAKAMIYA <[EMAIL PROTECTED]>
Date:   Fri Aug 24 23:31:39 2007 -0700

   [IPV6] XFRM: Fix connected socket to use transformation.

Cheers,
Divy
  




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[PATCH 5/7 RESEND] cxgb3 - CQ context operations time out too soon.

2007-09-05 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Currently, the driver only tries up to 5 times (5us) to get the results
of a CQ context operation.  Testing has shown the chip can take as much
as 50us to return the response on SG_CONTEXT_CMD operations.  So we up
the retry count to 100 to cover high loads.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/t3_hw.c |   19 +++
 1 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index bff1d02..0583293 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -1870,6 +1870,8 @@ void t3_port_intr_clear(struct adapter *adapter, int idx)
phy->ops->intr_clear(phy);
 }
 
+#define SG_CONTEXT_CMD_ATTEMPTS 100
+
 /**
  * t3_sge_write_context - write an SGE context
  * @adapter: the adapter
@@ -1889,7 +1891,7 @@ static int t3_sge_write_context(struct adapter *adapter, 
unsigned int id,
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
 V_CONTEXT_CMD_OPCODE(1) | type | V_CONTEXT(id));
return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
-  0, 5, 1);
+  0, SG_CONTEXT_CMD_ATTEMPTS, 1);
 }
 
 /**
@@ -2075,7 +2077,7 @@ int t3_sge_enable_ecntxt(struct adapter *adapter, 
unsigned int id, int enable)
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
 V_CONTEXT_CMD_OPCODE(1) | F_EGRESS | V_CONTEXT(id));
return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
-  0, 5, 1);
+  0, SG_CONTEXT_CMD_ATTEMPTS, 1);
 }
 
 /**
@@ -2099,7 +2101,7 @@ int t3_sge_disable_fl(struct adapter *adapter, unsigned 
int id)
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
 V_CONTEXT_CMD_OPCODE(1) | F_FREELIST | V_CONTEXT(id));
return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
-  0, 5, 1);
+  0, SG_CONTEXT_CMD_ATTEMPTS, 1);
 }
 
 /**
@@ -2123,7 +2125,7 @@ int t3_sge_disable_rspcntxt(struct adapter *adapter, 
unsigned int id)
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
 V_CONTEXT_CMD_OPCODE(1) | F_RESPONSEQ | V_CONTEXT(id));
return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
-  0, 5, 1);
+  0, SG_CONTEXT_CMD_ATTEMPTS, 1);
 }
 
 /**
@@ -2147,7 +2149,7 @@ int t3_sge_disable_cqcntxt(struct adapter *adapter, 
unsigned int id)
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
 V_CONTEXT_CMD_OPCODE(1) | F_CQ | V_CONTEXT(id));
return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
-  0, 5, 1);
+  0, SG_CONTEXT_CMD_ATTEMPTS, 1);
 }
 
 /**
@@ -2172,7 +2174,7 @@ int t3_sge_cqcntxt_op(struct adapter *adapter, unsigned 
int id, unsigned int op,
t3_write_reg(adapter, A_SG_CONTEXT_CMD, V_CONTEXT_CMD_OPCODE(op) |
 V_CONTEXT(id) | F_CQ);
if (t3_wait_op_done_val(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
-   0, 5, 1, &val))
+   0, SG_CONTEXT_CMD_ATTEMPTS, 1, &val))
return -EIO;
 
if (op >= 2 && op < 7) {
@@ -2182,7 +2184,8 @@ int t3_sge_cqcntxt_op(struct adapter *adapter, unsigned 
int id, unsigned int op,
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
 V_CONTEXT_CMD_OPCODE(0) | F_CQ | V_CONTEXT(id));
if (t3_wait_op_done(adapter, A_SG_CONTEXT_CMD,
-   F_CONTEXT_CMD_BUSY, 0, 5, 1))
+   F_CONTEXT_CMD_BUSY, 0,
+   SG_CONTEXT_CMD_ATTEMPTS, 1))
return -EIO;
return G_CQ_INDEX(t3_read_reg(adapter, A_SG_CONTEXT_DATA0));
}
@@ -2208,7 +2211,7 @@ static int t3_sge_read_context(unsigned int type, struct 
adapter *adapter,
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
 V_CONTEXT_CMD_OPCODE(0) | type | V_CONTEXT(id));
if (t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY, 0,
-   5, 1))
+   SG_CONTEXT_CMD_ATTEMPTS, 1))
return -EIO;
data[0] = t3_read_reg(adapter, A_SG_CONTEXT_DATA0);
data[1] = t3_read_reg(adapter, A_SG_CONTEXT_DATA1);
-
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[PATCH 7/7] cxgb3 - Update engine microcode version

2007-09-05 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

The new microcode engine version is set to 1.1.0

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/common.h |4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index d3f276c..3e5b0db 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -127,8 +127,8 @@ enum {  /* adapter 
interrupt-maintained statistics */
 
 enum {
TP_VERSION_MAJOR= 1,
-   TP_VERSION_MINOR= 0,
-   TP_VERSION_MICRO= 44
+   TP_VERSION_MINOR= 1,
+   TP_VERSION_MICRO= 0
 };
 
 #define S_TP_VERSION_MAJOR 16
-
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[PATCH 4/7 RESEND] cxgb3 - Set the CQ_ERR bit in CQ contexts.

2007-09-05 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

The cxgb3 driver is incorrectly configuring the HW CQ context for CQ's
that use overflow-avoidance.  Namely the RDMA control CQ.  This results
in a bad DMA from the device to bus address 0.  The solution is to set
the CQ_ERR bit in the context for these types of CQs.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/sge_defs.h |4 
 drivers/net/cxgb3/t3_hw.c|3 ++-
 2 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/drivers/net/cxgb3/sge_defs.h b/drivers/net/cxgb3/sge_defs.h
index 514869e..29b6c80 100644
--- a/drivers/net/cxgb3/sge_defs.h
+++ b/drivers/net/cxgb3/sge_defs.h
@@ -106,6 +106,10 @@
 #define V_CQ_GEN(x) ((x) << S_CQ_GEN)
 #define F_CQ_GENV_CQ_GEN(1U)
 
+#define S_CQ_ERR30
+#define V_CQ_ERR(x) ((x) << S_CQ_ERR)
+#define F_CQ_ERRV_CQ_ERR(1U)
+
 #define S_CQ_OVERFLOW_MODE31
 #define V_CQ_OVERFLOW_MODE(x) ((x) << S_CQ_OVERFLOW_MODE)
 #define F_CQ_OVERFLOW_MODEV_CQ_OVERFLOW_MODE(1U)
diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index cdcfc13..bff1d02 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -2046,7 +2046,8 @@ int t3_sge_init_cqcntxt(struct adapter *adapter, unsigned 
int id, u64 base_addr,
base_addr >>= 32;
t3_write_reg(adapter, A_SG_CONTEXT_DATA2,
 V_CQ_BASE_HI((u32) base_addr) | V_CQ_RSPQ(rspq) |
-V_CQ_GEN(1) | V_CQ_OVERFLOW_MODE(ovfl_mode));
+V_CQ_GEN(1) | V_CQ_OVERFLOW_MODE(ovfl_mode) |
+V_CQ_ERR(ovfl_mode));
t3_write_reg(adapter, A_SG_CONTEXT_DATA3, V_CQ_CREDITS(credits) |
 V_CQ_CREDIT_THRES(credit_thres));
return t3_sge_write_context(adapter, id, F_CQ);
-
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[PATCH 6/7] cxgb3 - Add T3C rev

2007-09-05 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

add driver recognition for T3C rev board. 

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/common.h |1 +
 drivers/net/cxgb3/cxgb3_main.c |3 +++
 2 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index 7e9e43d..d3f276c 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -438,6 +438,7 @@ enum {  /* chip 
revisions */
T3_REV_A  = 0,
T3_REV_B  = 2,
T3_REV_B2 = 3,
+   T3_REV_C  = 4,
 };
 
 struct trace_params {
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index ae9c213..9d360eb 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -768,6 +768,9 @@ static inline char t3rev2char(struct adapter *adapter)
case T3_REV_B2:
rev = 'b';
break;
+   case T3_REV_C:
+   rev = 'c';
+   break;
}
return rev;
 }
-
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[PATCH 3/7 RESEND] cxgb3 - remove false positive in xgmac workaround

2007-09-05 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Qualify toggling of xgmac tx enable with not getting pause frames, 
we might not make forward progress because the peer is sending 
lots of pause frames.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/common.h |1 +
 drivers/net/cxgb3/xgmac.c  |4 +++-
 2 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index ada5e4b..7e9e43d 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -513,6 +513,7 @@ struct cmac {
u64 rx_mcnt;
unsigned int toggle_cnt;
unsigned int txen;
+   u64 rx_pause;
struct mac_stats stats;
 };
 
diff --git a/drivers/net/cxgb3/xgmac.c b/drivers/net/cxgb3/xgmac.c
index 1d1c391..ff9e9dc 100644
--- a/drivers/net/cxgb3/xgmac.c
+++ b/drivers/net/cxgb3/xgmac.c
@@ -452,6 +452,7 @@ int t3_mac_enable(struct cmac *mac, int which)
A_XGM_TX_SPI4_SOP_EOP_CNT +
oft)));
mac->rx_mcnt = s->rx_frames;
+   mac->rx_pause = s->rx_pause;
mac->rx_xcnt = (G_TXSPI4SOPCNT(t3_read_reg(adap,
A_XGM_RX_SPI4_SOP_EOP_CNT +
oft)));
@@ -504,7 +505,7 @@ int t3b2_mac_watchdog_task(struct cmac *mac)
tx_xcnt = 1;/* By default tx_xcnt is making progress */
tx_tcnt = mac->tx_tcnt; /* If tx_mcnt is progressing ignore tx_tcnt */
rx_xcnt = 1;/* By default rx_xcnt is making progress */
-   if (tx_mcnt == mac->tx_mcnt) {
+   if (tx_mcnt == mac->tx_mcnt && mac->rx_pause == s->rx_pause) {
tx_xcnt = (G_TXSPI4SOPCNT(t3_read_reg(adap,
A_XGM_TX_SPI4_SOP_EOP_CNT +
mac->offset)));
@@ -560,6 +561,7 @@ out:
mac->tx_mcnt = s->tx_frames;
mac->rx_xcnt = rx_xcnt;
mac->rx_mcnt = s->rx_frames;
+   mac->rx_pause = s->rx_pause;
if (status == 1) {
t3_write_reg(adap, A_XGM_TX_CTRL + mac->offset, 0);
t3_read_reg(adap, A_XGM_TX_CTRL + mac->offset);  /* flush */
-
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[PATCH 2/7 RESEND] cxgb3 - log and clear PEX errors

2007-09-05 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Clear pciE PEX errors late at module load time.
Log details when PEX errors occur.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/t3_hw.c |6 ++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index 2b49b96..cdcfc13 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -1358,6 +1358,10 @@ static void pcie_intr_handler(struct adapter *adapter)
{0}
};
 
+   if (t3_read_reg(adapter, A_PCIE_INT_CAUSE) & F_PEXERR)
+   CH_ALERT(adapter, "PEX error code 0x%x\n",
+t3_read_reg(adapter, A_PCIE_PEX_ERR));
+
if (t3_handle_intr_status(adapter, A_PCIE_INT_CAUSE, PCIE_INTR_MASK,
  pcie_intr_info, adapter->irq_stats))
t3_fatal_err(adapter);
@@ -1809,6 +1813,8 @@ void t3_intr_clear(struct adapter *adapter)
for (i = 0; i < ARRAY_SIZE(cause_reg_addr); ++i)
t3_write_reg(adapter, cause_reg_addr[i], 0x);
 
+   if (is_pcie(adapter))
+   t3_write_reg(adapter, A_PCIE_PEX_ERR, 0x);
t3_write_reg(adapter, A_PL_INT_CAUSE0, 0x);
t3_read_reg(adapter, A_PL_INT_CAUSE0);  /* flush */
 }
-
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[PATCH 1/7 RESEND] cxgb3 - Firmware update

2007-09-05 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Update firmware version.
Allow the driver to be up and running with older FW image

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/common.h |2 +-
 drivers/net/cxgb3/cxgb3_main.c |9 +
 drivers/net/cxgb3/t3_hw.c  |   20 +++-
 drivers/net/cxgb3/version.h|2 +-
 4 files changed, 22 insertions(+), 11 deletions(-)

diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index 510e93f..ada5e4b 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -690,7 +690,7 @@ int t3_read_flash(struct adapter *adapter, unsigned int 
addr,
  unsigned int nwords, u32 *data, int byte_oriented);
 int t3_load_fw(struct adapter *adapter, const u8 * fw_data, unsigned int size);
 int t3_get_fw_version(struct adapter *adapter, u32 *vers);
-int t3_check_fw_version(struct adapter *adapter);
+int t3_check_fw_version(struct adapter *adapter, int *must_load);
 int t3_init_hw(struct adapter *adapter, u32 fw_params);
 void mac_prep(struct cmac *mac, struct adapter *adapter, int index);
 void early_hw_init(struct adapter *adapter, const struct adapter_info *ai);
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index eabb841..ae9c213 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -832,11 +832,12 @@ static int cxgb_up(struct adapter *adap)
int must_load;
 
if (!(adap->flags & FULL_INIT_DONE)) {
-   err = t3_check_fw_version(adap);
-   if (err == -EINVAL)
+   err = t3_check_fw_version(adap, &must_load);
+   if (err == -EINVAL) {
err = upgrade_fw(adap);
-   if (err)
-   goto out;
+   if (err && must_load)
+   goto out;
+   }
 
err = t3_check_tpsram_version(adap, &must_load);
if (err == -EINVAL) {
diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index e958bbe..2b49b96 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -960,16 +960,18 @@ int t3_get_fw_version(struct adapter *adapter, u32 *vers)
 /**
  * t3_check_fw_version - check if the FW is compatible with this driver
  * @adapter: the adapter
- *
+ * @must_load: set to 1 if loading a new FW image is required
+
  * Checks if an adapter's FW is compatible with the driver.  Returns 0
  * if the versions are compatible, a negative error otherwise.
  */
-int t3_check_fw_version(struct adapter *adapter)
+int t3_check_fw_version(struct adapter *adapter, int *must_load)
 {
int ret;
u32 vers;
unsigned int type, major, minor;
 
+   *must_load = 1;
ret = t3_get_fw_version(adapter, &vers);
if (ret)
return ret;
@@ -982,9 +984,17 @@ int t3_check_fw_version(struct adapter *adapter)
minor == FW_VERSION_MINOR)
return 0;
 
-   CH_ERR(adapter, "found wrong FW version(%u.%u), "
-  "driver needs version %u.%u\n", major, minor,
-  FW_VERSION_MAJOR, FW_VERSION_MINOR);
+   if (major != FW_VERSION_MAJOR)
+   CH_ERR(adapter, "found wrong FW version(%u.%u), "
+  "driver needs version %u.%u\n", major, minor,
+  FW_VERSION_MAJOR, FW_VERSION_MINOR);
+   else {
+   *must_load = 0;
+   CH_WARN(adapter, "found wrong FW minor version(%u.%u), "
+   "driver compiled for version %u.%u\n", major, minor,
+   FW_VERSION_MAJOR, FW_VERSION_MINOR);
+   }
+
return -EINVAL;
 }
 
diff --git a/drivers/net/cxgb3/version.h b/drivers/net/cxgb3/version.h
index eb508bf..ef1c633 100644
--- a/drivers/net/cxgb3/version.h
+++ b/drivers/net/cxgb3/version.h
@@ -39,6 +39,6 @@
 
 /* Firmware version */
 #define FW_VERSION_MAJOR 4
-#define FW_VERSION_MINOR 3
+#define FW_VERSION_MINOR 6
 #define FW_VERSION_MICRO 0
 #endif /* __CHELSIO_VERSION_H */
-
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Re: [PATCH 9/11] cxgb3 - engine microcode update

2007-09-05 Thread Divy Le Ray




>
> I think 9-14 still need to be incorporated.  I don't see them in your
> upstream branch, and they aren't in linus' tree either.

I am not the blocker here. 



Sorry for the delay - again.
I'm resubmitting these patches against net#upstream.

Cheers,
Divy
-
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[PATCH 2.6.23 2/2] - cxgb3 engine microcode load

2007-08-29 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Load the engine microcode when an interface 
is brought up, instead of of doing it when the module
is loaded. 
Loosen up tight binding between the driver and the 
engine microcode version. 
There is no need for microcode update with T3A boards.
Fix the file naming.
Do a better job at logging the loading activity.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/common.h |3 +
 drivers/net/cxgb3/cxgb3_main.c |  126 ++--
 drivers/net/cxgb3/t3_hw.c  |   46 +--
 3 files changed, 123 insertions(+), 52 deletions(-)

diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index 1637800..2129210 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -679,7 +679,8 @@ const struct adapter_info *t3_get_adapter_info(unsigned int 
board_id);
 int t3_seeprom_read(struct adapter *adapter, u32 addr, u32 *data);
 int t3_seeprom_write(struct adapter *adapter, u32 addr, u32 data);
 int t3_seeprom_wp(struct adapter *adapter, int enable);
-int t3_check_tpsram_version(struct adapter *adapter);
+int t3_get_tp_version(struct adapter *adapter, u32 *vers);
+int t3_check_tpsram_version(struct adapter *adapter, int *must_load);
 int t3_check_tpsram(struct adapter *adapter, u8 *tp_ram, unsigned int size);
 int t3_set_proto_sram(struct adapter *adap, u8 *data);
 int t3_read_flash(struct adapter *adapter, unsigned int addr,
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index f3bf128..5ab319c 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -729,6 +729,7 @@ static void bind_qsets(struct adapter *adap)
 }
 
 #define FW_FNAME "t3fw-%d.%d.%d.bin"
+#define TPSRAM_NAME "t3%c_protocol_sram-%d.%d.%d.bin"
 
 static int upgrade_fw(struct adapter *adap)
 {
@@ -747,6 +748,71 @@ static int upgrade_fw(struct adapter *adap)
}
ret = t3_load_fw(adap, fw->data, fw->size);
release_firmware(fw);
+
+   if (ret == 0)
+   dev_info(dev, "successful upgrade to firmware %d.%d.%d\n",
+FW_VERSION_MAJOR, FW_VERSION_MINOR, FW_VERSION_MICRO);
+   else
+   dev_err(dev, "failed to upgrade to firmware %d.%d.%d\n",
+   FW_VERSION_MAJOR, FW_VERSION_MINOR, FW_VERSION_MICRO);
+   
+   return ret;
+}
+
+static inline char t3rev2char(struct adapter *adapter)
+{
+   char rev = 0;
+
+   switch(adapter->params.rev) {
+   case T3_REV_B:
+   case T3_REV_B2:
+   rev = 'b';
+   break;
+   }
+   return rev;
+}
+
+int update_tpsram(struct adapter *adap)
+{
+   const struct firmware *tpsram;
+   char buf[64];
+   struct device *dev = &adap->pdev->dev;
+   int ret;
+   char rev;
+   
+   rev = t3rev2char(adap);
+   if (!rev)
+   return 0;
+
+   snprintf(buf, sizeof(buf), TPSRAM_NAME, rev,
+TP_VERSION_MAJOR, TP_VERSION_MINOR, TP_VERSION_MICRO);
+
+   ret = request_firmware(&tpsram, buf, dev);
+   if (ret < 0) {
+   dev_err(dev, "could not load TP SRAM: unable to load %s\n",
+   buf);
+   return ret;
+   }
+   
+   ret = t3_check_tpsram(adap, tpsram->data, tpsram->size);
+   if (ret)
+   goto release_tpsram;
+
+   ret = t3_set_proto_sram(adap, tpsram->data);
+   if (ret == 0)
+   dev_info(dev,
+"successful update of protocol engine "
+"to %d.%d.%d\n",
+TP_VERSION_MAJOR, TP_VERSION_MINOR, TP_VERSION_MICRO);
+   else
+   dev_err(dev, "failed to update of protocol engine %d.%d.%d\n",
+   TP_VERSION_MAJOR, TP_VERSION_MINOR, TP_VERSION_MICRO);
+   if (ret)
+   dev_err(dev, "loading protocol SRAM failed\n");
+
+release_tpsram:
+   release_firmware(tpsram);
+   
return ret;
 }
 
@@ -763,6 +829,7 @@ static int upgrade_fw(struct adapter *adap)
 static int cxgb_up(struct adapter *adap)
 {
int err = 0;
+   int must_load;
 
if (!(adap->flags & FULL_INIT_DONE)) {
err = t3_check_fw_version(adap);
@@ -771,6 +838,13 @@ static int cxgb_up(struct adapter *adap)
if (err)
goto out;
 
+   err = t3_check_tpsram_version(adap, &must_load);
+   if (err == -EINVAL) {
+   err = update_tpsram(adap);
+   if (err && must_load)
+   goto out;
+   }
+
err = init_dummy_netdevs(adap);
if (err)
goto out;
@@ -1110,8 +1184,10 @@ static void get_drvinfo(stru

[PATCH 2.6.23 1/2] cxgb3 - Fix dev->priv usage

2007-08-29 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

cxgb3 used netdev_priv() and dev->priv for different purposes.
In 2.6.23, netdev_priv() == dev->priv, cxgb3 needs a fix.
This patch is a partial backport of Dave Miller's changes in the 
net-2.6.24 git branch. 

Without this fix, cxgb3 crashes on 2.6.23.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/infiniband/hw/cxgb3/cxio_hal.c |2 -
 drivers/net/cxgb3/adapter.h|2 +
 drivers/net/cxgb3/cxgb3_main.c |  126 ++--
 drivers/net/cxgb3/cxgb3_offload.c  |   16 +++-
 drivers/net/cxgb3/cxgb3_offload.h  |2 +
 drivers/net/cxgb3/sge.c|   23 --
 drivers/net/cxgb3/t3cdev.h |3 -
 7 files changed, 105 insertions(+), 69 deletions(-)

diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.c 
b/drivers/infiniband/hw/cxgb3/cxio_hal.c
index 1518b41..beb2a38 100644
--- a/drivers/infiniband/hw/cxgb3/cxio_hal.c
+++ b/drivers/infiniband/hw/cxgb3/cxio_hal.c
@@ -916,7 +916,7 @@ int cxio_rdev_open(struct cxio_rdev *rdev_p)
PDBG("%s opening rnic dev %s\n", __FUNCTION__, rdev_p->dev_name);
memset(&rdev_p->ctrl_qp, 0, sizeof(rdev_p->ctrl_qp));
if (!rdev_p->t3cdev_p)
-   rdev_p->t3cdev_p = T3CDEV(netdev_p);
+   rdev_p->t3cdev_p = dev2t3cdev(netdev_p);
rdev_p->t3cdev_p->ulp = (void *) rdev_p;
err = rdev_p->t3cdev_p->ctl(rdev_p->t3cdev_p, RDMA_GET_PARAMS,
 &(rdev_p->rnic_info));
diff --git a/drivers/net/cxgb3/adapter.h b/drivers/net/cxgb3/adapter.h
index ab72563..20e887d 100644
--- a/drivers/net/cxgb3/adapter.h
+++ b/drivers/net/cxgb3/adapter.h
@@ -50,7 +50,9 @@ typedef irqreturn_t(*intr_handler_t) (int, void *);
 
 struct vlan_group;
 
+struct adapter;
 struct port_info {
+   struct adapter *adapter;
struct vlan_group *vlan_grp;
const struct port_type_info *port_type;
u8 port_id;
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index dc5d269..f3bf128 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -358,11 +358,14 @@ static int init_dummy_netdevs(struct adapter *adap)
 
for (j = 0; j < pi->nqsets - 1; j++) {
if (!adap->dummy_netdev[dummy_idx]) {
-   nd = alloc_netdev(0, "", ether_setup);
+   struct port_info *p;
+
+   nd = alloc_netdev(sizeof(*p), "", ether_setup);
if (!nd)
goto free_all;
 
-   nd->priv = adap;
+   p = netdev_priv(nd);
+   p->adapter = adap;
nd->weight = 64;
set_bit(__LINK_STATE_START, &nd->state);
adap->dummy_netdev[dummy_idx] = nd;
@@ -482,7 +485,8 @@ static ssize_t attr_store(struct device *d, struct 
device_attribute *attr,
 #define CXGB3_SHOW(name, val_expr) \
 static ssize_t format_##name(struct net_device *dev, char *buf) \
 { \
-   struct adapter *adap = dev->priv; \
+   struct port_info *pi = netdev_priv(dev); \
+   struct adapter *adap = pi->adapter; \
return sprintf(buf, "%u\n", val_expr); \
 } \
 static ssize_t show_##name(struct device *d, struct device_attribute *attr, \
@@ -493,7 +497,8 @@ static ssize_t show_##name(struct device *d, struct 
device_attribute *attr, \
 
 static ssize_t set_nfilters(struct net_device *dev, unsigned int val)
 {
-   struct adapter *adap = dev->priv;
+   struct port_info *pi = netdev_priv(dev);
+   struct adapter *adap = pi->adapter;
int min_tids = is_offload(adap) ? MC5_MIN_TIDS : 0;
 
if (adap->flags & FULL_INIT_DONE)
@@ -515,7 +520,8 @@ static ssize_t store_nfilters(struct device *d, struct 
device_attribute *attr,
 
 static ssize_t set_nservers(struct net_device *dev, unsigned int val)
 {
-   struct adapter *adap = dev->priv;
+   struct port_info *pi = netdev_priv(dev);
+   struct adapter *adap = pi->adapter;
 
if (adap->flags & FULL_INIT_DONE)
return -EBUSY;
@@ -556,9 +562,10 @@ static struct attribute_group cxgb3_attr_group = {.attrs = 
cxgb3_attrs };
 static ssize_t tm_attr_show(struct device *d, struct device_attribute *attr,
char *buf, int sched)
 {
-   ssize_t len;
+   struct port_info *pi = netdev_priv(to_net_dev(d));
+   struct adapter *adap = pi->adapter;
unsigned int v, addr, bpt, cpt;
-   struct adapter *adap = to_net_dev(d)->priv;
+   ssize_t len;
 
addr = A_TP_TX_MOD_Q1_Q0_RATE_LIMIT - sched / 2;
rtnl_lock();
@@ -

[PATCH 2.6.23 0/2] cxgb3 driver fixes

2007-08-29 Thread Divy Le Ray

Jeff,

I'm resubmitting the cxgb3 dev->priv issue.
I'm also submitting a patch fixing the engine microcode loading.

The first patch changes in both cxgb3 and iw_cxgb3 related to
the dev->priv issue.
The second patch allows the driver to load the engine microcode
at the right time - when a port is brought up as opposed to
the module getting loaded. It does a better job at logging
the loading activity, and loosen the strict version requirement
currently in place.

Cheers,
Divy

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Re: [PATCH 2.6.23 0/2] cxgb3 - Fix dev->priv usage

2007-08-29 Thread Divy Le Ray

Roland Dreier wrote:


Looks OK to me but I would just roll up the second patch into the
first patch and let Jeff merge it as one commit.  There's no point in
creating an intermediate tree that doesn't build -- it just breaks git
bisect for no useful purpose.



Okay, Jeff agrees too, I'll do so.


Also as a side note, when trying to test this I got the message

could not load TP SRAM: unable to load t3a_protocol_sram-1.0.44.bin

and you guys seem to only have t3b protocol sram images on your web
site.  Could you send me the t3a file (or swap out my T3A boards for
T3B boards ;)?


I'd rather fix the driver then:
First, HW folks tell me that there is no need for engine
microcode update for T3A.
Moreover, there is a bug when the file name is constructed.
We have T3B and T3B2 board revs, the driver looks for
t3b_protocol_sram-1.0.44.bin for T3B2 boards and defaults to
t3a_protocol_sram-1.0.44.bin even for T3B boards.
I submitted a patch fixing this in netdev#upstream.
I should propose the fix for 2.6.23 instead.

Cheers,
Divy

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[PATCH 2/2] iw_cxgb3 - dev->priv fix follow up

2007-08-28 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

The RDMA driver sitting on top of cxgb3 
now uses the exported function dev2t3cdev() 
to retrieve the the t3cdev associated with 
a net_device.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/infiniband/hw/cxgb3/cxio_hal.c |2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.c 
b/drivers/infiniband/hw/cxgb3/cxio_hal.c
index 1518b41..beb2a38 100644
--- a/drivers/infiniband/hw/cxgb3/cxio_hal.c
+++ b/drivers/infiniband/hw/cxgb3/cxio_hal.c
@@ -916,7 +916,7 @@ int cxio_rdev_open(struct cxio_rdev *rdev_p)
PDBG("%s opening rnic dev %s\n", __FUNCTION__, rdev_p->dev_name);
memset(&rdev_p->ctrl_qp, 0, sizeof(rdev_p->ctrl_qp));
if (!rdev_p->t3cdev_p)
-   rdev_p->t3cdev_p = T3CDEV(netdev_p);
+   rdev_p->t3cdev_p = dev2t3cdev(netdev_p);
rdev_p->t3cdev_p->ulp = (void *) rdev_p;
err = rdev_p->t3cdev_p->ctl(rdev_p->t3cdev_p, RDMA_GET_PARAMS,
 &(rdev_p->rnic_info));
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[PATCH 2.6.23 1/2] cxgb3 - Fix dev->priv usage

2007-08-28 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

cxgb3 used netdev_priv() and dev->priv for different purposes.
In 2.6.23, netdev_priv() == dev->priv, cxgb3 needs a fix.
This patch is a partial backport of Dave Miller's changes in the 
net-2.6.24 git branch. 

Without this fix, cxgb3 crashes on 2.6.23.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/adapter.h   |2 +
 drivers/net/cxgb3/cxgb3_main.c|  126 +
 drivers/net/cxgb3/cxgb3_offload.c |   16 -
 drivers/net/cxgb3/cxgb3_offload.h |2 +
 drivers/net/cxgb3/sge.c   |   23 ---
 drivers/net/cxgb3/t3cdev.h|3 -
 6 files changed, 104 insertions(+), 68 deletions(-)

diff --git a/drivers/net/cxgb3/adapter.h b/drivers/net/cxgb3/adapter.h
index ab72563..20e887d 100644
--- a/drivers/net/cxgb3/adapter.h
+++ b/drivers/net/cxgb3/adapter.h
@@ -50,7 +50,9 @@ typedef irqreturn_t(*intr_handler_t) (int, void *);
 
 struct vlan_group;
 
+struct adapter;
 struct port_info {
+   struct adapter *adapter;
struct vlan_group *vlan_grp;
const struct port_type_info *port_type;
u8 port_id;
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index dc5d269..f3bf128 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -358,11 +358,14 @@ static int init_dummy_netdevs(struct adapter *adap)
 
for (j = 0; j < pi->nqsets - 1; j++) {
if (!adap->dummy_netdev[dummy_idx]) {
-   nd = alloc_netdev(0, "", ether_setup);
+   struct port_info *p;
+
+   nd = alloc_netdev(sizeof(*p), "", ether_setup);
if (!nd)
goto free_all;
 
-   nd->priv = adap;
+   p = netdev_priv(nd);
+   p->adapter = adap;
nd->weight = 64;
set_bit(__LINK_STATE_START, &nd->state);
adap->dummy_netdev[dummy_idx] = nd;
@@ -482,7 +485,8 @@ static ssize_t attr_store(struct device *d, struct 
device_attribute *attr,
 #define CXGB3_SHOW(name, val_expr) \
 static ssize_t format_##name(struct net_device *dev, char *buf) \
 { \
-   struct adapter *adap = dev->priv; \
+   struct port_info *pi = netdev_priv(dev); \
+   struct adapter *adap = pi->adapter; \
return sprintf(buf, "%u\n", val_expr); \
 } \
 static ssize_t show_##name(struct device *d, struct device_attribute *attr, \
@@ -493,7 +497,8 @@ static ssize_t show_##name(struct device *d, struct 
device_attribute *attr, \
 
 static ssize_t set_nfilters(struct net_device *dev, unsigned int val)
 {
-   struct adapter *adap = dev->priv;
+   struct port_info *pi = netdev_priv(dev);
+   struct adapter *adap = pi->adapter;
int min_tids = is_offload(adap) ? MC5_MIN_TIDS : 0;
 
if (adap->flags & FULL_INIT_DONE)
@@ -515,7 +520,8 @@ static ssize_t store_nfilters(struct device *d, struct 
device_attribute *attr,
 
 static ssize_t set_nservers(struct net_device *dev, unsigned int val)
 {
-   struct adapter *adap = dev->priv;
+   struct port_info *pi = netdev_priv(dev);
+   struct adapter *adap = pi->adapter;
 
if (adap->flags & FULL_INIT_DONE)
return -EBUSY;
@@ -556,9 +562,10 @@ static struct attribute_group cxgb3_attr_group = {.attrs = 
cxgb3_attrs };
 static ssize_t tm_attr_show(struct device *d, struct device_attribute *attr,
char *buf, int sched)
 {
-   ssize_t len;
+   struct port_info *pi = netdev_priv(to_net_dev(d));
+   struct adapter *adap = pi->adapter;
unsigned int v, addr, bpt, cpt;
-   struct adapter *adap = to_net_dev(d)->priv;
+   ssize_t len;
 
addr = A_TP_TX_MOD_Q1_Q0_RATE_LIMIT - sched / 2;
rtnl_lock();
@@ -581,10 +588,11 @@ static ssize_t tm_attr_show(struct device *d, struct 
device_attribute *attr,
 static ssize_t tm_attr_store(struct device *d, struct device_attribute *attr,
 const char *buf, size_t len, int sched)
 {
+   struct port_info *pi = netdev_priv(to_net_dev(d));
+   struct adapter *adap = pi->adapter;
+   unsigned int val;
char *endp;
ssize_t ret;
-   unsigned int val;
-   struct adapter *adap = to_net_dev(d)->priv;
 
if (!capable(CAP_NET_ADMIN))
return -EPERM;
@@ -858,8 +866,9 @@ static void schedule_chk_task(struct adapter *adap)
 
 static int offload_open(struct net_device *dev)
 {
-   struct adapter *adapter = dev->priv;
-   struct t3cdev *tdev = T3CDEV(dev);
+   struct port_info *pi = netdev_priv(dev);
+   struct adapter *adapter = pi->

[PATCH 2.6.23 0/2] cxgb3 - Fix dev->priv usage

2007-08-28 Thread Divy Le Ray

Jeff/Roland,

I'm resubmitting the cxgb3 dev->priv fix for inclusion in 2.6.23.
I also submit a follow-up patch for the iw_cxgb3 driver that fixes
the previous infiniband breakage.

Cheers,
Divy
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Re: [PATCH 2.6.23 RESEND] cxgb3 - Fix dev->priv usage

2007-08-28 Thread Divy Le Ray

Roland Dreier wrote:

 > I take that back.  Rejected -- it breaks infiniband build.

To be more precise:

drivers/infiniband/hw/cxgb3/cxio_hal.c: In function 'cxio_rdev_open':
drivers/infiniband/hw/cxgb3/cxio_hal.c:919: error: implicit declaration of 
function 'T3CDEV'

it seems the problem is that T3CDEV() has been deleted and been
replaced with the dev2t3cdev() inline function.  However a simple
replacement s/T3CDEV/dev2t3cdev/ in drivers/infiniband/hw/cxgb3
doesn't work because the function has moved from t3cdev.h to
adapter.h; and moving the function back to t3cdev.h doesn't work
because it depends on more structure definitions now.

And at that point I gave up...
  


Sorry about the compilation issue and the delay to reply.
I'll post a follow up for the iw_cxgb3 driver later this evening.
I plan to move the inlined dev2t3cdev() from adapter.h to an exported 
dev2t3cdev()

in cxgb3_offload.c.

Divy
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[PATCH 2.6.23 RESEND] cxgb3 - Fix dev->priv usage

2007-08-23 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

cxgb3 used netdev_priv() and dev->priv for different purposes.
In 2.6.23, netdev_priv() == dev->priv, cxgb3 needs a fix.
This patch is a partial backport of Dave Miller's changes in the 
net-2.6.24 git branch. 

Without this fix, cxgb3 crashes on 2.6.23.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/adapter.h   |   10 +++
 drivers/net/cxgb3/cxgb3_main.c|  126 +
 drivers/net/cxgb3/cxgb3_offload.c |6 +-
 drivers/net/cxgb3/sge.c   |   23 ---
 drivers/net/cxgb3/t3cdev.h|3 -
 5 files changed, 100 insertions(+), 68 deletions(-)

diff --git a/drivers/net/cxgb3/adapter.h b/drivers/net/cxgb3/adapter.h
index ab72563..c1dc344 100644
--- a/drivers/net/cxgb3/adapter.h
+++ b/drivers/net/cxgb3/adapter.h
@@ -50,7 +50,9 @@ typedef irqreturn_t(*intr_handler_t) (int, void *);
 
 struct vlan_group;
 
+struct adapter;
 struct port_info {
+   struct adapter *adapter;
struct vlan_group *vlan_grp;
const struct port_type_info *port_type;
u8 port_id;
@@ -246,6 +248,14 @@ static inline void t3_write_reg(struct adapter *adapter, 
u32 reg_addr, u32 val)
writel(val, adapter->regs + reg_addr);
 }
 
+/* Get the t3cdev associated with a net_device */
+static inline struct t3cdev *dev2t3cdev(struct net_device *dev)
+{
+   const struct port_info *pi = netdev_priv(dev);
+
+   return (struct t3cdev *)pi->adapter;
+}
+
 static inline struct port_info *adap2pinfo(struct adapter *adap, int idx)
 {
return netdev_priv(adap->port[idx]);
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index dc5d269..f3bf128 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -358,11 +358,14 @@ static int init_dummy_netdevs(struct adapter *adap)
 
for (j = 0; j < pi->nqsets - 1; j++) {
if (!adap->dummy_netdev[dummy_idx]) {
-   nd = alloc_netdev(0, "", ether_setup);
+   struct port_info *p;
+
+   nd = alloc_netdev(sizeof(*p), "", ether_setup);
if (!nd)
goto free_all;
 
-   nd->priv = adap;
+   p = netdev_priv(nd);
+   p->adapter = adap;
nd->weight = 64;
set_bit(__LINK_STATE_START, &nd->state);
adap->dummy_netdev[dummy_idx] = nd;
@@ -482,7 +485,8 @@ static ssize_t attr_store(struct device *d, struct 
device_attribute *attr,
 #define CXGB3_SHOW(name, val_expr) \
 static ssize_t format_##name(struct net_device *dev, char *buf) \
 { \
-   struct adapter *adap = dev->priv; \
+   struct port_info *pi = netdev_priv(dev); \
+   struct adapter *adap = pi->adapter; \
return sprintf(buf, "%u\n", val_expr); \
 } \
 static ssize_t show_##name(struct device *d, struct device_attribute *attr, \
@@ -493,7 +497,8 @@ static ssize_t show_##name(struct device *d, struct 
device_attribute *attr, \
 
 static ssize_t set_nfilters(struct net_device *dev, unsigned int val)
 {
-   struct adapter *adap = dev->priv;
+   struct port_info *pi = netdev_priv(dev);
+   struct adapter *adap = pi->adapter;
int min_tids = is_offload(adap) ? MC5_MIN_TIDS : 0;
 
if (adap->flags & FULL_INIT_DONE)
@@ -515,7 +520,8 @@ static ssize_t store_nfilters(struct device *d, struct 
device_attribute *attr,
 
 static ssize_t set_nservers(struct net_device *dev, unsigned int val)
 {
-   struct adapter *adap = dev->priv;
+   struct port_info *pi = netdev_priv(dev);
+   struct adapter *adap = pi->adapter;
 
if (adap->flags & FULL_INIT_DONE)
return -EBUSY;
@@ -556,9 +562,10 @@ static struct attribute_group cxgb3_attr_group = {.attrs = 
cxgb3_attrs };
 static ssize_t tm_attr_show(struct device *d, struct device_attribute *attr,
char *buf, int sched)
 {
-   ssize_t len;
+   struct port_info *pi = netdev_priv(to_net_dev(d));
+   struct adapter *adap = pi->adapter;
unsigned int v, addr, bpt, cpt;
-   struct adapter *adap = to_net_dev(d)->priv;
+   ssize_t len;
 
addr = A_TP_TX_MOD_Q1_Q0_RATE_LIMIT - sched / 2;
rtnl_lock();
@@ -581,10 +588,11 @@ static ssize_t tm_attr_show(struct device *d, struct 
device_attribute *attr,
 static ssize_t tm_attr_store(struct device *d, struct device_attribute *attr,
 const char *buf, size_t len, int sched)
 {
+   struct port_info *pi = netdev_priv(to_net_dev(d));
+   struct adapter *adap = pi->adapter;
+   unsigned int val;
char *endp;

Re: [PATCH 0/3] cxgb3 driver update

2007-08-23 Thread Divy Le Ray

Hi Al,


Speaking of cxgb3, could you explain what the hell is
static int do_term(struct t3cdev *dev, struct sk_buff *skb)
{
unsigned int hwtid = ntohl(skb->priority) >> 8 & 0xf;
doing?  AFAIK, skb->priority is not net-endian...



the RDMA connection id is saved in the skb's priority field for TERM 
messages

because it is not in the CPL message that comes up from the hardware.
Yet the RDMA driver needs it, so sge.c::process_responses() overloads
the skb's priority and csum with these values.




Another odd place is
int t3_seeprom_write(struct adapter *adapter, u32 addr, u32 data)
{  
u16 val;

int attempts = EEPROM_MAX_POLL;
unsigned int base = adapter->params.pci.vpd_cap_addr;

if ((addr >= EEPROMSIZE && addr != EEPROM_STAT_ADDR) || (addr 
& 3))  
return -EINVAL;


pci_write_config_dword(adapter->pdev, base + PCI_VPD_DATA,
   cpu_to_le32(data));
with callers like
int t3_seeprom_wp(struct adapter *adapter, int enable)
{
return t3_seeprom_write(adapter, EEPROM_STAT_ADDR, enable ? 
0xc : 0);


IOW, you really get little-endian values passed to 
pci_write_config_dword()

and it expects a host-endian as the last argument...



It looks like a bug. Thanks for spotting this.

Cheers,
Divy

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[PATCH 14/11] cxgb3 - CQ context operations time out too soon.

2007-08-22 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Currently, the driver only tries up to 5 times (5us) to get the results
of a CQ context operation.  Testing has shown the chip can take as much
as 50us to return the response on SG_CONTEXT_CMD operations.  So we up
the retry count to 100 to cover high loads.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/t3_hw.c |   19 +++
 1 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index 9358959..8f6efdb 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -1867,6 +1867,8 @@ void t3_port_intr_clear(struct adapter *adapter, int idx)
phy->ops->intr_clear(phy);
 }
 
+#define SG_CONTEXT_CMD_ATTEMPTS 100
+
 /**
  * t3_sge_write_context - write an SGE context
  * @adapter: the adapter
@@ -1886,7 +1888,7 @@ static int t3_sge_write_context(struct adapter *adapter, 
unsigned int id,
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
 V_CONTEXT_CMD_OPCODE(1) | type | V_CONTEXT(id));
return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
-  0, 5, 1);
+  0, SG_CONTEXT_CMD_ATTEMPTS, 1);
 }
 
 /**
@@ -2072,7 +2074,7 @@ int t3_sge_enable_ecntxt(struct adapter *adapter, 
unsigned int id, int enable)
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
 V_CONTEXT_CMD_OPCODE(1) | F_EGRESS | V_CONTEXT(id));
return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
-  0, 5, 1);
+  0, SG_CONTEXT_CMD_ATTEMPTS, 1);
 }
 
 /**
@@ -2096,7 +2098,7 @@ int t3_sge_disable_fl(struct adapter *adapter, unsigned 
int id)
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
 V_CONTEXT_CMD_OPCODE(1) | F_FREELIST | V_CONTEXT(id));
return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
-  0, 5, 1);
+  0, SG_CONTEXT_CMD_ATTEMPTS, 1);
 }
 
 /**
@@ -2120,7 +2122,7 @@ int t3_sge_disable_rspcntxt(struct adapter *adapter, 
unsigned int id)
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
 V_CONTEXT_CMD_OPCODE(1) | F_RESPONSEQ | V_CONTEXT(id));
return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
-  0, 5, 1);
+  0, SG_CONTEXT_CMD_ATTEMPTS, 1);
 }
 
 /**
@@ -2144,7 +2146,7 @@ int t3_sge_disable_cqcntxt(struct adapter *adapter, 
unsigned int id)
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
 V_CONTEXT_CMD_OPCODE(1) | F_CQ | V_CONTEXT(id));
return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
-  0, 5, 1);
+  0, SG_CONTEXT_CMD_ATTEMPTS, 1);
 }
 
 /**
@@ -2169,7 +2171,7 @@ int t3_sge_cqcntxt_op(struct adapter *adapter, unsigned 
int id, unsigned int op,
t3_write_reg(adapter, A_SG_CONTEXT_CMD, V_CONTEXT_CMD_OPCODE(op) |
 V_CONTEXT(id) | F_CQ);
if (t3_wait_op_done_val(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
-   0, 5, 1, &val))
+   0, SG_CONTEXT_CMD_ATTEMPTS, 1, &val))
return -EIO;
 
if (op >= 2 && op < 7) {
@@ -2179,7 +2181,8 @@ int t3_sge_cqcntxt_op(struct adapter *adapter, unsigned 
int id, unsigned int op,
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
 V_CONTEXT_CMD_OPCODE(0) | F_CQ | V_CONTEXT(id));
if (t3_wait_op_done(adapter, A_SG_CONTEXT_CMD,
-   F_CONTEXT_CMD_BUSY, 0, 5, 1))
+   F_CONTEXT_CMD_BUSY, 0,
+   SG_CONTEXT_CMD_ATTEMPTS, 1))
return -EIO;
return G_CQ_INDEX(t3_read_reg(adapter, A_SG_CONTEXT_DATA0));
}
@@ -2205,7 +2208,7 @@ static int t3_sge_read_context(unsigned int type, struct 
adapter *adapter,
t3_write_reg(adapter, A_SG_CONTEXT_CMD,
 V_CONTEXT_CMD_OPCODE(0) | type | V_CONTEXT(id));
if (t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY, 0,
-   5, 1))
+   SG_CONTEXT_CMD_ATTEMPTS, 1))
return -EIO;
data[0] = t3_read_reg(adapter, A_SG_CONTEXT_DATA0);
data[1] = t3_read_reg(adapter, A_SG_CONTEXT_DATA1);
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[PATCH 13/11] cxgb3 - Set the CQ_ERR bit in CQ contexts.

2007-08-22 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

The cxgb3 driver is incorrectly configuring the HW CQ context for CQ's
that use overflow-avoidance.  Namely the RDMA control CQ.  This results
in a bad DMA from the device to bus address 0.  The solution is to set
the CQ_ERR bit in the context for these types of CQs.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/sge_defs.h |4 
 drivers/net/cxgb3/t3_hw.c|3 ++-
 2 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/drivers/net/cxgb3/sge_defs.h b/drivers/net/cxgb3/sge_defs.h
index 514869e..29b6c80 100644
--- a/drivers/net/cxgb3/sge_defs.h
+++ b/drivers/net/cxgb3/sge_defs.h
@@ -106,6 +106,10 @@
 #define V_CQ_GEN(x) ((x) << S_CQ_GEN)
 #define F_CQ_GENV_CQ_GEN(1U)
 
+#define S_CQ_ERR30
+#define V_CQ_ERR(x) ((x) << S_CQ_ERR)
+#define F_CQ_ERRV_CQ_ERR(1U)
+
 #define S_CQ_OVERFLOW_MODE31
 #define V_CQ_OVERFLOW_MODE(x) ((x) << S_CQ_OVERFLOW_MODE)
 #define F_CQ_OVERFLOW_MODEV_CQ_OVERFLOW_MODE(1U)
diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index 538b254..9358959 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -2043,7 +2043,8 @@ int t3_sge_init_cqcntxt(struct adapter *adapter, unsigned 
int id, u64 base_addr,
base_addr >>= 32;
t3_write_reg(adapter, A_SG_CONTEXT_DATA2,
 V_CQ_BASE_HI((u32) base_addr) | V_CQ_RSPQ(rspq) |
-V_CQ_GEN(1) | V_CQ_OVERFLOW_MODE(ovfl_mode));
+V_CQ_GEN(1) | V_CQ_OVERFLOW_MODE(ovfl_mode) |
+V_CQ_ERR(ovfl_mode));
t3_write_reg(adapter, A_SG_CONTEXT_DATA3, V_CQ_CREDITS(credits) |
 V_CQ_CREDIT_THRES(credit_thres));
return t3_sge_write_context(adapter, id, F_CQ);
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[PATCH 12/11] cxgb3 - remove false positive in xgmac workaround

2007-08-22 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Qualify toggling of xgmac tx enable with not getting pause frames, 
we might not make forward progress because the peer is sending 
lots of pause frames.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/common.h |1 +
 drivers/net/cxgb3/xgmac.c  |4 +++-
 2 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index ff867c2..3e5b0db 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -514,6 +514,7 @@ struct cmac {
u64 rx_mcnt;
unsigned int toggle_cnt;
unsigned int txen;
+   u64 rx_pause;
struct mac_stats stats;
 };
 
diff --git a/drivers/net/cxgb3/xgmac.c b/drivers/net/cxgb3/xgmac.c
index 1d1c391..ff9e9dc 100644
--- a/drivers/net/cxgb3/xgmac.c
+++ b/drivers/net/cxgb3/xgmac.c
@@ -452,6 +452,7 @@ int t3_mac_enable(struct cmac *mac, int which)
A_XGM_TX_SPI4_SOP_EOP_CNT +
oft)));
mac->rx_mcnt = s->rx_frames;
+   mac->rx_pause = s->rx_pause;
mac->rx_xcnt = (G_TXSPI4SOPCNT(t3_read_reg(adap,
A_XGM_RX_SPI4_SOP_EOP_CNT +
oft)));
@@ -504,7 +505,7 @@ int t3b2_mac_watchdog_task(struct cmac *mac)
tx_xcnt = 1;/* By default tx_xcnt is making progress */
tx_tcnt = mac->tx_tcnt; /* If tx_mcnt is progressing ignore tx_tcnt */
rx_xcnt = 1;/* By default rx_xcnt is making progress */
-   if (tx_mcnt == mac->tx_mcnt) {
+   if (tx_mcnt == mac->tx_mcnt && mac->rx_pause == s->rx_pause) {
tx_xcnt = (G_TXSPI4SOPCNT(t3_read_reg(adap,
A_XGM_TX_SPI4_SOP_EOP_CNT +
mac->offset)));
@@ -560,6 +561,7 @@ out:
mac->tx_mcnt = s->tx_frames;
mac->rx_xcnt = rx_xcnt;
mac->rx_mcnt = s->rx_frames;
+   mac->rx_pause = s->rx_pause;
if (status == 1) {
t3_write_reg(adap, A_XGM_TX_CTRL + mac->offset, 0);
t3_read_reg(adap, A_XGM_TX_CTRL + mac->offset);  /* flush */
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[PATCH 0/3] cxgb3 driver update

2007-08-22 Thread Divy Le Ray

Hi Jeff,

I'm submitting three more patches for inclusion in netdev#upstream.
These patches are built over the series I resent yesterday night.
The patch numbering reflects the stacking.

Here is a brief description:
-   avoid false positives in the xgmac hang workaround
-   Properly set the CQ_ERR bit in RDMA CQ contexts.
-   Update CQ context operations time out values

Cheers,
Divy


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[PATCH 10/11] cxgb3 - Firmware update

2007-08-21 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Update firmware version
Allow the driver to be up and running with older FW image

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/common.h |2 +-
 drivers/net/cxgb3/cxgb3_main.c |9 +
 drivers/net/cxgb3/t3_hw.c  |   20 +++-
 drivers/net/cxgb3/version.h|2 +-
 4 files changed, 22 insertions(+), 11 deletions(-)

diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index b665b20..ff867c2 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -691,7 +691,7 @@ int t3_read_flash(struct adapter *adapter, unsigned int 
addr,
  unsigned int nwords, u32 *data, int byte_oriented);
 int t3_load_fw(struct adapter *adapter, const u8 * fw_data, unsigned int size);
 int t3_get_fw_version(struct adapter *adapter, u32 *vers);
-int t3_check_fw_version(struct adapter *adapter);
+int t3_check_fw_version(struct adapter *adapter, int *must_load);
 int t3_init_hw(struct adapter *adapter, u32 fw_params);
 void mac_prep(struct cmac *mac, struct adapter *adapter, int index);
 void early_hw_init(struct adapter *adapter, const struct adapter_info *ai);
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index 65ded16..eaebd7f 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -814,11 +814,12 @@ static int cxgb_up(struct adapter *adap)
int must_load;
 
if (!(adap->flags & FULL_INIT_DONE)) {
-   err = t3_check_fw_version(adap);
-   if (err == -EINVAL)
+   err = t3_check_fw_version(adap, &must_load);
+   if (err == -EINVAL) {
err = upgrade_fw(adap);
-   if (err)
-   goto out;
+   if (err && must_load)
+   goto out;
+   }
 
err = t3_check_tpsram_version(adap, &must_load);
if (err == -EINVAL) {
diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index 63032e8..3d47627 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -957,16 +957,18 @@ int t3_get_fw_version(struct adapter *adapter, u32 *vers)
 /**
  * t3_check_fw_version - check if the FW is compatible with this driver
  * @adapter: the adapter
- *
+ * @must_load: set to 1 if loading a new FW image is required
+
  * Checks if an adapter's FW is compatible with the driver.  Returns 0
  * if the versions are compatible, a negative error otherwise.
  */
-int t3_check_fw_version(struct adapter *adapter)
+int t3_check_fw_version(struct adapter *adapter, int *must_load)
 {
int ret;
u32 vers;
unsigned int type, major, minor;
 
+   *must_load = 1;
ret = t3_get_fw_version(adapter, &vers);
if (ret)
return ret;
@@ -979,9 +981,17 @@ int t3_check_fw_version(struct adapter *adapter)
minor == FW_VERSION_MINOR)
return 0;
 
-   CH_ERR(adapter, "found wrong FW version(%u.%u), "
-  "driver needs version %u.%u\n", major, minor,
-  FW_VERSION_MAJOR, FW_VERSION_MINOR);
+   if (major != FW_VERSION_MAJOR)
+   CH_ERR(adapter, "found wrong FW version(%u.%u), "
+  "driver needs version %u.%u\n", major, minor,
+  FW_VERSION_MAJOR, FW_VERSION_MINOR);
+   else {
+   *must_load = 0;
+   CH_WARN(adapter, "found wrong FW minor version(%u.%u), "
+   "driver compiled for version %u.%u\n", major, minor,
+   FW_VERSION_MAJOR, FW_VERSION_MINOR);
+   }
+
return -EINVAL;
 }
 
diff --git a/drivers/net/cxgb3/version.h b/drivers/net/cxgb3/version.h
index eb508bf..ef1c633 100644
--- a/drivers/net/cxgb3/version.h
+++ b/drivers/net/cxgb3/version.h
@@ -39,6 +39,6 @@
 
 /* Firmware version */
 #define FW_VERSION_MAJOR 4
-#define FW_VERSION_MINOR 3
+#define FW_VERSION_MINOR 6
 #define FW_VERSION_MICRO 0
 #endif /* __CHELSIO_VERSION_H */
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[PATCH 11/11] cxgb3 - log and clear PEX errors

2007-08-21 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Clear pciE PEX errors late at module load time.
Log details when PEX errors occur.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/t3_hw.c |6 ++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index 3d47627..538b254 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -1355,6 +1355,10 @@ static void pcie_intr_handler(struct adapter *adapter)
{0}
};
 
+   if (t3_read_reg(adapter, A_PCIE_INT_CAUSE) & F_PEXERR)
+   CH_ALERT(adapter, "PEX error code 0x%x\n",
+t3_read_reg(adapter, A_PCIE_PEX_ERR));
+
if (t3_handle_intr_status(adapter, A_PCIE_INT_CAUSE, PCIE_INTR_MASK,
  pcie_intr_info, adapter->irq_stats))
t3_fatal_err(adapter);
@@ -1806,6 +1810,8 @@ void t3_intr_clear(struct adapter *adapter)
for (i = 0; i < ARRAY_SIZE(cause_reg_addr); ++i)
t3_write_reg(adapter, cause_reg_addr[i], 0x);
 
+   if (is_pcie(adapter))
+   t3_write_reg(adapter, A_PCIE_PEX_ERR, 0x);
t3_write_reg(adapter, A_PL_INT_CAUSE0, 0x);
t3_read_reg(adapter, A_PL_INT_CAUSE0);  /* flush */
 }
-
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[PATCH 8/11] cxgb3 - Update internal memory management

2007-08-21 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Set PM1 internal memory to round robin mode
It balances access to this internal memory for multiport adapters.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/regs.h  |2 ++
 drivers/net/cxgb3/t3_hw.c |2 ++
 2 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/net/cxgb3/regs.h b/drivers/net/cxgb3/regs.h
index 2824278..5e1bc0d 100644
--- a/drivers/net/cxgb3/regs.h
+++ b/drivers/net/cxgb3/regs.h
@@ -1326,6 +1326,7 @@
 #define V_D0_WEIGHT(x) ((x) << S_D0_WEIGHT)
 
 #define A_PM1_RX_CFG 0x5c0
+#define A_PM1_RX_MODE 0x5c4
 
 #define A_PM1_RX_INT_ENABLE 0x5d8
 
@@ -1394,6 +1395,7 @@
 #define A_PM1_RX_INT_CAUSE 0x5dc
 
 #define A_PM1_TX_CFG 0x5e0
+#define A_PM1_TX_MODE 0x5e4
 
 #define A_PM1_TX_INT_ENABLE 0x5f8
 
diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index 23b1a16..13bfbec 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -3189,6 +3189,8 @@ int t3_init_hw(struct adapter *adapter, u32 fw_params)
t3_set_reg_field(adapter, A_PCIX_CFG, 0, F_CLIDECEN);
 
t3_write_reg(adapter, A_PM1_RX_CFG, 0x);
+   t3_write_reg(adapter, A_PM1_RX_MODE, 0);
+   t3_write_reg(adapter, A_PM1_TX_MODE, 0);
init_hw_for_avail_ports(adapter, adapter->params.nports);
t3_sge_init(adapter, &adapter->params.sge);
 
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[PATCH 9/11] cxgb3 - engine microcode update

2007-08-21 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Load microcode engine when the interface
is configured up.
Bump up version to 1.1.0.
Allow the driver to be and running with
older microcode images.
Allow ethtool to log the microcode version.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/common.h |8 ++-
 drivers/net/cxgb3/cxgb3_main.c |  116 
 drivers/net/cxgb3/t3_hw.c  |   43 +--
 3 files changed, 113 insertions(+), 54 deletions(-)

diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index d54446f..b665b20 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -127,8 +127,8 @@ enum {  /* adapter 
interrupt-maintained statistics */
 
 enum {
TP_VERSION_MAJOR= 1,
-   TP_VERSION_MINOR= 0,
-   TP_VERSION_MICRO= 44
+   TP_VERSION_MINOR= 1,
+   TP_VERSION_MICRO= 0
 };
 
 #define S_TP_VERSION_MAJOR 16
@@ -438,6 +438,7 @@ enum {  /* chip 
revisions */
T3_REV_A  = 0,
T3_REV_B  = 2,
T3_REV_B2 = 3,
+   T3_REV_C  = 4,
 };
 
 struct trace_params {
@@ -682,7 +683,8 @@ const struct adapter_info *t3_get_adapter_info(unsigned int 
board_id);
 int t3_seeprom_read(struct adapter *adapter, u32 addr, u32 *data);
 int t3_seeprom_write(struct adapter *adapter, u32 addr, u32 data);
 int t3_seeprom_wp(struct adapter *adapter, int enable);
-int t3_check_tpsram_version(struct adapter *adapter);
+int t3_get_tp_version(struct adapter *adapter, u32 *vers);
+int t3_check_tpsram_version(struct adapter *adapter, int *must_load);
 int t3_check_tpsram(struct adapter *adapter, u8 *tp_ram, unsigned int size);
 int t3_set_proto_sram(struct adapter *adap, u8 *data);
 int t3_read_flash(struct adapter *adapter, unsigned int addr,
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index e5744e7..65ded16 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -721,6 +721,7 @@ static void bind_qsets(struct adapter *adap)
 }
 
 #define FW_FNAME "t3fw-%d.%d.%d.bin"
+#define TPSRAM_NAME "t3%c_protocol_sram-%d.%d.%d.bin"
 
 static int upgrade_fw(struct adapter *adap)
 {
@@ -742,6 +743,61 @@ static int upgrade_fw(struct adapter *adap)
return ret;
 }
 
+static inline char t3rev2char(struct adapter *adapter)
+{
+   char rev = 0;
+
+   switch(adapter->params.rev) {
+   case T3_REV_A:
+   rev = 'a';
+   break;
+   case T3_REV_B:
+   case T3_REV_B2:
+   rev = 'b';
+   break;
+   case T3_REV_C:
+   rev = 'c';
+   break;
+   }
+   return rev;
+}
+
+int update_tpsram(struct adapter *adap)
+{
+   const struct firmware *tpsram;
+   char buf[64];
+   struct device *dev = &adap->pdev->dev;
+   int ret;
+   char rev;
+   
+   rev = t3rev2char(adap);
+   if (!rev)
+   return 0;
+
+   snprintf(buf, sizeof(buf), TPSRAM_NAME, rev,
+TP_VERSION_MAJOR, TP_VERSION_MINOR, TP_VERSION_MICRO);
+
+   ret = request_firmware(&tpsram, buf, dev);
+   if (ret < 0) {
+   dev_err(dev, "could not load TP SRAM: unable to load %s\n",
+   buf);
+   return ret;
+   }
+   
+   ret = t3_check_tpsram(adap, tpsram->data, tpsram->size);
+   if (ret)
+   goto release_tpsram;
+
+   ret = t3_set_proto_sram(adap, tpsram->data);
+   if (ret)
+   dev_err(dev, "loading protocol SRAM failed\n");
+
+release_tpsram:
+   release_firmware(tpsram);
+   
+   return ret;
+}
+
 /**
  * cxgb_up - enable the adapter
  * @adapter: adapter being enabled
@@ -755,6 +811,7 @@ static int upgrade_fw(struct adapter *adap)
 static int cxgb_up(struct adapter *adap)
 {
int err = 0;
+   int must_load;
 
if (!(adap->flags & FULL_INIT_DONE)) {
err = t3_check_fw_version(adap);
@@ -763,6 +820,13 @@ static int cxgb_up(struct adapter *adap)
if (err)
goto out;
 
+   err = t3_check_tpsram_version(adap, &must_load);
+   if (err == -EINVAL) {
+   err = update_tpsram(adap);
+   if (err && must_load)
+   goto out;
+   }
+
err = init_dummy_netdevs(adap);
if (err)
goto out;
@@ -1097,9 +1161,11 @@ static int get_eeprom_len(struct net_device *dev)
 static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
 {
u32 fw_vers = 0;
+   u32 tp_vers = 0;
struct adapter *adapter = dev->priv;
 
t3_get_fw_ve

[PATCH 6/11 RESEND] cxgb3 - Fatal error update

2007-08-21 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Stop the MAC when a fatal error is detected.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/cxgb3_main.c |4 
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index dc5d269..a1f94cf 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -2270,6 +2270,10 @@ void t3_fatal_err(struct adapter *adapter)
 
if (adapter->flags & FULL_INIT_DONE) {
t3_sge_stop(adapter);
+   t3_write_reg(adapter, A_XGM_TX_CTRL, 0);
+   t3_write_reg(adapter, A_XGM_RX_CTRL, 0);
+   t3_write_reg(adapter, XGM_REG(A_XGM_TX_CTRL, 1), 0);
+   t3_write_reg(adapter, XGM_REG(A_XGM_RX_CTRL, 1), 0);
t3_intr_disable(adapter);
}
CH_ALERT(adapter, "encountered fatal error, operation suspended\n");
-
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[PATCH 7/11 RESEND] cxgb3 - log adapter serial number

2007-08-21 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Log HW serial number when cxgb3 module is loaded.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/common.h |2 ++
 drivers/net/cxgb3/cxgb3_main.c |6 --
 drivers/net/cxgb3/t3_hw.c  |3 ++-
 3 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index 55922ed..d54446f 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -97,6 +97,7 @@ enum {
MAX_NPORTS = 2, /* max # of ports */
MAX_FRAME_SIZE = 10240, /* max MAC frame size, including header + FCS */
EEPROMSIZE = 8192,  /* Serial EEPROM size */
+   SERNUM_LEN = 16,/* Serial # length */
RSS_TABLE_SIZE = 64,/* size of RSS lookup and mapping tables */
TCB_SIZE = 128, /* TCB size */
NMTUS = 16, /* size of MTU table */
@@ -391,6 +392,7 @@ struct vpd_params {
unsigned int uclk;
unsigned int mdc;
unsigned int mem_timing;
+   u8 sn[SERNUM_LEN + 1];
u8 eth_base[6];
u8 port_type[MAX_NPORTS];
unsigned short xauicfg[2];
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index a1f94cf..e5744e7 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -2333,10 +2333,12 @@ static void __devinit print_port_info(struct adapter 
*adap,
   (adap->flags & USING_MSIX) ? " MSI-X" :
   (adap->flags & USING_MSI) ? " MSI" : "");
if (adap->name == dev->name && adap->params.vpd.mclk)
-   printk(KERN_INFO "%s: %uMB CM, %uMB PMTX, %uMB PMRX\n",
+   printk(KERN_INFO
+  "%s: %uMB CM, %uMB PMTX, %uMB PMRX, S/N: %s\n",
   adap->name, t3_mc7_size(&adap->cm) >> 20,
   t3_mc7_size(&adap->pmtx) >> 20,
-  t3_mc7_size(&adap->pmrx) >> 20);
+  t3_mc7_size(&adap->pmrx) >> 20,
+  adap->params.vpd.sn);
}
 }
 
diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index dd3149d..23b1a16 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -505,7 +505,7 @@ struct t3_vpd {
u8 vpdr_len[2];
VPD_ENTRY(pn, 16);  /* part number */
VPD_ENTRY(ec, 16);  /* EC level */
-   VPD_ENTRY(sn, 16);  /* serial number */
+   VPD_ENTRY(sn, SERNUM_LEN); /* serial number */
VPD_ENTRY(na, 12);  /* MAC address base */
VPD_ENTRY(cclk, 6); /* core clock */
VPD_ENTRY(mclk, 6); /* mem clock */
@@ -648,6 +648,7 @@ static int get_vpd_params(struct adapter *adapter, struct 
vpd_params *p)
p->uclk = simple_strtoul(vpd.uclk_data, NULL, 10);
p->mdc = simple_strtoul(vpd.mdc_data, NULL, 10);
p->mem_timing = simple_strtoul(vpd.mt_data, NULL, 10);
+   memcpy(p->sn, vpd.sn_data, SERNUM_LEN);
 
/* Old eeproms didn't have port information */
if (adapter->params.rev == 0 && !vpd.port0_data[0]) {
-
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[PATCH 3/11 RESEND] cxgb3 - use immediate data for offload Tx

2007-08-21 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Send small TX_DATA work requests as immediate data even when
there are fragments. this avoids doing multiple DMAs for 
small fragmented packets. 
The driver already implements this optimization for small
contiguous packets.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/sge.c |   17 +++--
 1 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index 9213cda..dca2716 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -1182,8 +1182,8 @@ int t3_eth_xmit(struct sk_buff *skb, struct net_device 
*dev)
  *
  * Writes a packet as immediate data into a Tx descriptor.  The packet
  * contains a work request at its beginning.  We must write the packet
- * carefully so the SGE doesn't read accidentally before it's written in
- * its entirety.
+ * carefully so the SGE doesn't read it accidentally before it's written
+ * in its entirety.
  */
 static inline void write_imm(struct tx_desc *d, struct sk_buff *skb,
 unsigned int len, unsigned int gen)
@@ -1191,7 +1191,11 @@ static inline void write_imm(struct tx_desc *d, struct 
sk_buff *skb,
struct work_request_hdr *from = (struct work_request_hdr *)skb->data;
struct work_request_hdr *to = (struct work_request_hdr *)d;
 
-   memcpy(&to[1], &from[1], len - sizeof(*from));
+   if (likely(!skb->data_len))
+   memcpy(&to[1], &from[1], len - sizeof(*from));
+   else
+   skb_copy_bits(skb, sizeof(*from), &to[1], len - sizeof(*from));
+
to->wr_hi = from->wr_hi | htonl(F_WR_SOP | F_WR_EOP |
V_WR_BCNTLFLT(len & 7));
wmb();
@@ -1261,7 +1265,7 @@ static inline void reclaim_completed_tx_imm(struct 
sge_txq *q)
 
 static inline int immediate(const struct sk_buff *skb)
 {
-   return skb->len <= WR_LEN && !skb->data_len;
+   return skb->len <= WR_LEN;
 }
 
 /**
@@ -1467,12 +1471,13 @@ static void write_ofld_wr(struct adapter *adap, struct 
sk_buff *skb,
  */
 static inline unsigned int calc_tx_descs_ofld(const struct sk_buff *skb)
 {
-   unsigned int flits, cnt = skb_shinfo(skb)->nr_frags;
+   unsigned int flits, cnt;
 
-   if (skb->len <= WR_LEN && cnt == 0)
+   if (skb->len <= WR_LEN)
return 1;   /* packet fits as immediate data */
 
flits = skb_transport_offset(skb) / 8;  /* headers */
+   cnt = skb_shinfo(skb)->nr_frags;
if (skb->tail != skb->transport_header)
cnt++;
return flits_to_desc(flits + sgl_len(cnt));
-
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[PATCH 4/11 RESEND] cxgb3 - Expose HW memory page info

2007-08-21 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

A HW issue requires limiting the receive window size
to 23 pages of internal memory.
These pages can be configured to different sizes,
thus the RDMA driver needs to know the
page size to enforce the upper limit.

Also assign explicit enum values.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/cxgb3_ctl_defs.h |   52 +---
 drivers/net/cxgb3/cxgb3_offload.c  |7 +
 2 files changed, 38 insertions(+), 21 deletions(-)

diff --git a/drivers/net/cxgb3/cxgb3_ctl_defs.h 
b/drivers/net/cxgb3/cxgb3_ctl_defs.h
index 2095dda..6c4f320 100644
--- a/drivers/net/cxgb3/cxgb3_ctl_defs.h
+++ b/drivers/net/cxgb3/cxgb3_ctl_defs.h
@@ -33,27 +33,29 @@
 #define _CXGB3_OFFLOAD_CTL_DEFS_H
 
 enum {
-   GET_MAX_OUTSTANDING_WR,
-   GET_TX_MAX_CHUNK,
-   GET_TID_RANGE,
-   GET_STID_RANGE,
-   GET_RTBL_RANGE,
-   GET_L2T_CAPACITY,
-   GET_MTUS,
-   GET_WR_LEN,
-   GET_IFF_FROM_MAC,
-   GET_DDP_PARAMS,
-   GET_PORTS,
-
-   ULP_ISCSI_GET_PARAMS,
-   ULP_ISCSI_SET_PARAMS,
-
-   RDMA_GET_PARAMS,
-   RDMA_CQ_OP,
-   RDMA_CQ_SETUP,
-   RDMA_CQ_DISABLE,
-   RDMA_CTRL_QP_SETUP,
-   RDMA_GET_MEM,
+   GET_MAX_OUTSTANDING_WR  = 0,
+   GET_TX_MAX_CHUNK= 1,
+   GET_TID_RANGE   = 2,
+   GET_STID_RANGE  = 3,
+   GET_RTBL_RANGE  = 4,
+   GET_L2T_CAPACITY= 5,
+   GET_MTUS= 6,
+   GET_WR_LEN  = 7,
+   GET_IFF_FROM_MAC= 8,
+   GET_DDP_PARAMS  = 9,
+   GET_PORTS   = 10,
+
+   ULP_ISCSI_GET_PARAMS= 11,
+   ULP_ISCSI_SET_PARAMS= 12,
+
+   RDMA_GET_PARAMS = 13,
+   RDMA_CQ_OP  = 14,
+   RDMA_CQ_SETUP   = 15,
+   RDMA_CQ_DISABLE = 16,
+   RDMA_CTRL_QP_SETUP  = 17,
+   RDMA_GET_MEM= 18,
+
+   GET_RX_PAGE_INFO= 50,
 };
 
 /*
@@ -161,4 +163,12 @@ struct rdma_ctrlqp_setup {
unsigned long long base_addr;
unsigned int size;
 };
+
+/*
+ * Offload TX/RX page information.
+ */
+struct ofld_page_info {
+   unsigned int page_size;  /* Page size, should be a power of 2 */
+   unsigned int num;/* Number of pages */
+};
 #endif /* _CXGB3_OFFLOAD_CTL_DEFS_H */
diff --git a/drivers/net/cxgb3/cxgb3_offload.c 
b/drivers/net/cxgb3/cxgb3_offload.c
index e620ed4..522c1be 100644
--- a/drivers/net/cxgb3/cxgb3_offload.c
+++ b/drivers/net/cxgb3/cxgb3_offload.c
@@ -317,6 +317,8 @@ static int cxgb_offload_ctl(struct t3cdev *tdev, unsigned 
int req, void *data)
struct iff_mac *iffmacp;
struct ddp_params *ddpp;
struct adap_ports *ports;
+   struct ofld_page_info *rx_page_info;
+   struct tp_params *tp = &adapter->params.tp;
int i;
 
switch (req) {
@@ -382,6 +384,11 @@ static int cxgb_offload_ctl(struct t3cdev *tdev, unsigned 
int req, void *data)
if (!offload_running(adapter))
return -EAGAIN;
return cxgb_rdma_ctl(adapter, req, data);
+   case GET_RX_PAGE_INFO:
+   rx_page_info = data;
+   rx_page_info->page_size = tp->rx_pg_size;
+   rx_page_info->num = tp->rx_num_pgs;
+   break;
default:
return -EOPNOTSUPP;
}
-
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[PATCH 5/11 RESEND] cxgb3 - tighten checks on TID values

2007-08-21 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Enforce validity checks on connection ids

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/cxgb3_defs.h|   20 ++--
 drivers/net/cxgb3/cxgb3_offload.c |   28 +++-
 2 files changed, 41 insertions(+), 7 deletions(-)

diff --git a/drivers/net/cxgb3/cxgb3_defs.h b/drivers/net/cxgb3/cxgb3_defs.h
index 483a594..45e9216 100644
--- a/drivers/net/cxgb3/cxgb3_defs.h
+++ b/drivers/net/cxgb3/cxgb3_defs.h
@@ -79,9 +79,17 @@ static inline struct t3c_tid_entry *lookup_tid(const struct 
tid_info *t,
 static inline struct t3c_tid_entry *lookup_stid(const struct tid_info *t,
unsigned int tid)
 {
+   union listen_entry *e;
+
if (tid < t->stid_base || tid >= t->stid_base + t->nstids)
return NULL;
-   return &(stid2entry(t, tid)->t3c_tid);
+
+   e = stid2entry(t, tid);
+   if ((void *)e->next >= (void *)t->tid_tab &&
+   (void *)e->next < (void *)&t->atid_tab[t->natids])
+   return NULL;
+
+   return &e->t3c_tid;
 }
 
 /*
@@ -90,9 +98,17 @@ static inline struct t3c_tid_entry *lookup_stid(const struct 
tid_info *t,
 static inline struct t3c_tid_entry *lookup_atid(const struct tid_info *t,
unsigned int tid)
 {
+   union active_open_entry *e;
+
if (tid < t->atid_base || tid >= t->atid_base + t->natids)
return NULL;
-   return &(atid2entry(t, tid)->t3c_tid);
+
+   e = atid2entry(t, tid);
+   if ((void *)e->next >= (void *)t->tid_tab &&
+   (void *)e->next < (void *)&t->atid_tab[t->natids])
+   return NULL;
+
+   return &e->t3c_tid;
 }
 
 int process_rx(struct t3cdev *dev, struct sk_buff **skbs, int n);
diff --git a/drivers/net/cxgb3/cxgb3_offload.c 
b/drivers/net/cxgb3/cxgb3_offload.c
index 522c1be..7fb526a 100644
--- a/drivers/net/cxgb3/cxgb3_offload.c
+++ b/drivers/net/cxgb3/cxgb3_offload.c
@@ -57,7 +57,7 @@ static DEFINE_RWLOCK(adapter_list_lock);
 static LIST_HEAD(adapter_list);
 
 static const unsigned int MAX_ATIDS = 64 * 1024;
-static const unsigned int ATID_BASE = 0x10;
+static const unsigned int ATID_BASE = 0x1;
 
 static inline int offload_activated(struct t3cdev *tdev)
 {
@@ -684,10 +684,19 @@ static int do_cr(struct t3cdev *dev, struct sk_buff *skb)
 {
struct cpl_pass_accept_req *req = cplhdr(skb);
unsigned int stid = G_PASS_OPEN_TID(ntohl(req->tos_tid));
+   struct tid_info *t = &(T3C_DATA(dev))->tid_maps;
struct t3c_tid_entry *t3c_tid;
+   unsigned int tid = GET_TID(req);
 
-   t3c_tid = lookup_stid(&(T3C_DATA(dev))->tid_maps, stid);
-   if (t3c_tid->ctx && t3c_tid->client->handlers &&
+   if (unlikely(tid >= t->ntids)) {
+   printk("%s: passive open TID %u too large\n",
+  dev->name, tid);
+   t3_fatal_err(tdev2adap(dev));
+   return CPL_RET_BUF_DONE;
+   }
+   
+   t3c_tid = lookup_stid(t, stid);
+   if (t3c_tid && t3c_tid->ctx && t3c_tid->client->handlers &&
t3c_tid->client->handlers[CPL_PASS_ACCEPT_REQ]) {
return t3c_tid->client->handlers[CPL_PASS_ACCEPT_REQ]
(dev, skb, t3c_tid->ctx);
@@ -769,16 +778,25 @@ static int do_act_establish(struct t3cdev *dev, struct 
sk_buff *skb)
 {
struct cpl_act_establish *req = cplhdr(skb);
unsigned int atid = G_PASS_OPEN_TID(ntohl(req->tos_tid));
+   struct tid_info *t = &(T3C_DATA(dev))->tid_maps;
struct t3c_tid_entry *t3c_tid;
+   unsigned int tid = GET_TID(req);
 
-   t3c_tid = lookup_atid(&(T3C_DATA(dev))->tid_maps, atid);
+   if (unlikely(tid >= t->ntids)) {
+   printk("%s: active establish TID %u too large\n",
+  dev->name, tid);
+   t3_fatal_err(tdev2adap(dev));
+   return CPL_RET_BUF_DONE;
+   }
+
+   t3c_tid = lookup_atid(t, atid);
if (t3c_tid && t3c_tid->ctx && t3c_tid->client->handlers &&
t3c_tid->client->handlers[CPL_ACT_ESTABLISH]) {
return t3c_tid->client->handlers[CPL_ACT_ESTABLISH]
(dev, skb, t3c_tid->ctx);
} else {
printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
-  dev->name, CPL_PASS_ACCEPT_REQ);
+  dev->name, CPL_ACT_ESTABLISH);
return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
}
 }
-
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[PATCH 2/11 RESEND] cxgb3 - SGE doorbell overflow warning

2007-08-21 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Log doorbell Fifo overflow

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/regs.h |8 
 drivers/net/cxgb3/sge.c  |4 
 2 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/drivers/net/cxgb3/regs.h b/drivers/net/cxgb3/regs.h
index aa80313..2824278 100644
--- a/drivers/net/cxgb3/regs.h
+++ b/drivers/net/cxgb3/regs.h
@@ -172,6 +172,14 @@
 
 #define A_SG_INT_CAUSE 0x5c
 
+#define S_HIPIODRBDROPERR11
+#define V_HIPIODRBDROPERR(x) ((x) << S_HIPIODRBDROPERR)
+#define F_HIPIODRBDROPERRV_HIPIODRBDROPERR(1U)
+
+#define S_LOPIODRBDROPERR10
+#define V_LOPIODRBDROPERR(x) ((x) << S_LOPIODRBDROPERR)
+#define F_LOPIODRBDROPERRV_LOPIODRBDROPERR(1U)
+
 #define S_RSPQDISABLED3
 #define V_RSPQDISABLED(x) ((x) << S_RSPQDISABLED)
 #define F_RSPQDISABLEDV_RSPQDISABLED(1U)
diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index a2cfd68..9213cda 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -2476,6 +2476,10 @@ void t3_sge_err_intr_handler(struct adapter *adapter)
 "(0x%x)\n", (v >> S_RSPQ0DISABLED) & 0xff);
}
 
+   if (status & (F_HIPIODRBDROPERR | F_LOPIODRBDROPERR))
+   CH_ALERT(adapter, "SGE dropped %s priority doorbell\n",
+status & F_HIPIODRBDROPERR ? "high" : "lo");
+
t3_write_reg(adapter, A_SG_INT_CAUSE, status);
if (status & (F_RSPQCREDITOVERFOW | F_RSPQDISABLED))
t3_fatal_err(adapter);
-
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[PATCH 1/11 RESEND] cxgb3 - Update rx coalescing length

2007-08-21 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Reduce Rx coalescing length to 12288
Large bursts from the adapter to the host create back pressure
on the chip. Reducing the burst size avoids the issue.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/common.h |2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index c46c249..55922ed 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -104,7 +104,7 @@ enum {
PROTO_SRAM_LINES = 128, /* size of TP sram */
 };
 
-#define MAX_RX_COALESCING_LEN 16224U
+#define MAX_RX_COALESCING_LEN 12288U
 
 enum {
PAUSE_RX = 1 << 0,
-
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[PATCH 0/11] cxgb3 - driver updates

2007-08-21 Thread Divy Le Ray

Jeff,

I'm resubmitting the last cxgb3 patch series against netdev-2.6#upstream,
minus the first patch that you already applied and the last patch.

Here is a brief description:
-   Modify max HW Rx coalescing size
-   Log SGE doorbell Fifo overflow
-   Use Tx immediate data for offload packets whenever possible
-   RDMA can get internal mem info to workaround HW issues
-   More validity checks on connection ids
-   Stop MAC when a fatal error is detected
-   Log HW serial number
-   Update internal mem operating mode
-   Update engine microcode management, version is now 1.1.0
-   Update FW management, version is now 4.6.0
-   Ignore some HW errors until the HW is initialized

Cheers,
Divy



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Re: [PATCH 9/13] cxgb3 - Update internal memory management

2007-08-14 Thread Divy Le Ray

Jeff Garzik wrote:


Divy Le Ray wrote:
> From: Divy Le Ray <[EMAIL PROTECTED]>
>
> Set PM1 internal memory to round robin mode
>
> Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>

why?


For multiport adapters, it balances access to this internal memory.

Divy
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Re: [PATCH 5/13] cxgb3 - Expose HW memory page info

2007-08-14 Thread Divy Le Ray

Jeff Garzik wrote:

Divy Le Ray wrote:

From: Divy Le Ray <[EMAIL PROTECTED]>

Let the RDMA driver get HW page info to work around HW issues.
Assign explicit enum values.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>


"HW issues" -- you need to go into far more detail, when adding a new 
interface.  what hw issues?  why was this the best/only solution?





A HW issue requires limiting the receive window size to 23 pages of 
internal memory.
These pages can be configured to different sizes, thus the RDMA driver 
needs to know the

page size to enforce the upper limit.

Divy
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Re: [PATCH 4/13] cxgb3 - use immediate data for offload Tx

2007-08-14 Thread Divy Le Ray

Jeff Garzik wrote:


Divy Le Ray wrote:
> From: Divy Le Ray <[EMAIL PROTECTED]>
>
> Send small TX_DATA work requests as immediate data even when
> there are fragments.
>
> Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
> ---
>
>  drivers/net/cxgb3/sge.c |   17 +++--
>  1 files changed, 11 insertions(+), 6 deletions(-)

needs additional explanation.  don't just describe the new post-change
behavior, describe why this change is needed.


It's an optimization avoiding doing multiple DMAs for small fragmented 
packets.
The driver already implements this optimization for small contiguous 
packets.


Divy
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Re: [PATCH 2/13] cxgb3 - Update rx coalescing length

2007-08-14 Thread Divy Le Ray

Jeff Garzik wrote:


Divy Le Ray wrote:
> From: Divy Le Ray <[EMAIL PROTECTED]>
>
> Set max Rx coalescing length to 12288
>
> Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
> ---
>
>  drivers/net/cxgb3/common.h |2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
> index c46c249..55922ed 100644
> --- a/drivers/net/cxgb3/common.h
> +++ b/drivers/net/cxgb3/common.h
> @@ -104,7 +104,7 @@ enum {
>   PROTO_SRAM_LINES = 128, /* size of TP sram */
>  };
> 
> -#define MAX_RX_COALESCING_LEN 16224U

> +#define MAX_RX_COALESCING_LEN 12288U

neither the patch nor description explains -why-



We're seeing back pressure from PCIe with large bursts, this patch 
allows to cut down on the burst size.


Divy

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[PATCH 2.6.23] cxgb3 - Fix dev->priv usage

2007-08-13 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

cxgb3 used netdev_priv() and dev->priv for different purposes.
In 2.6.23, netdev_priv() == dev->priv, cxgb3 needs a fix.
This patch is a partial backport of Dave Miller's changes in the 
net-2.6.24 git branch. 

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/adapter.h   |   10 +++
 drivers/net/cxgb3/cxgb3_main.c|  126 +
 drivers/net/cxgb3/cxgb3_offload.c |6 +-
 drivers/net/cxgb3/sge.c   |   23 ---
 drivers/net/cxgb3/t3cdev.h|3 -
 5 files changed, 100 insertions(+), 68 deletions(-)

diff --git a/drivers/net/cxgb3/adapter.h b/drivers/net/cxgb3/adapter.h
index ab72563..c1dc344 100644
--- a/drivers/net/cxgb3/adapter.h
+++ b/drivers/net/cxgb3/adapter.h
@@ -50,7 +50,9 @@ typedef irqreturn_t(*intr_handler_t) (int, void *);
 
 struct vlan_group;
 
+struct adapter;
 struct port_info {
+   struct adapter *adapter;
struct vlan_group *vlan_grp;
const struct port_type_info *port_type;
u8 port_id;
@@ -246,6 +248,14 @@ static inline void t3_write_reg(struct adapter *adapter, 
u32 reg_addr, u32 val)
writel(val, adapter->regs + reg_addr);
 }
 
+/* Get the t3cdev associated with a net_device */
+static inline struct t3cdev *dev2t3cdev(struct net_device *dev)
+{
+   const struct port_info *pi = netdev_priv(dev);
+
+   return (struct t3cdev *)pi->adapter;
+}
+
 static inline struct port_info *adap2pinfo(struct adapter *adap, int idx)
 {
return netdev_priv(adap->port[idx]);
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index dc5d269..f3bf128 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -358,11 +358,14 @@ static int init_dummy_netdevs(struct adapter *adap)
 
for (j = 0; j < pi->nqsets - 1; j++) {
if (!adap->dummy_netdev[dummy_idx]) {
-   nd = alloc_netdev(0, "", ether_setup);
+   struct port_info *p;
+
+   nd = alloc_netdev(sizeof(*p), "", ether_setup);
if (!nd)
goto free_all;
 
-   nd->priv = adap;
+   p = netdev_priv(nd);
+   p->adapter = adap;
nd->weight = 64;
set_bit(__LINK_STATE_START, &nd->state);
adap->dummy_netdev[dummy_idx] = nd;
@@ -482,7 +485,8 @@ static ssize_t attr_store(struct device *d, struct 
device_attribute *attr,
 #define CXGB3_SHOW(name, val_expr) \
 static ssize_t format_##name(struct net_device *dev, char *buf) \
 { \
-   struct adapter *adap = dev->priv; \
+   struct port_info *pi = netdev_priv(dev); \
+   struct adapter *adap = pi->adapter; \
return sprintf(buf, "%u\n", val_expr); \
 } \
 static ssize_t show_##name(struct device *d, struct device_attribute *attr, \
@@ -493,7 +497,8 @@ static ssize_t show_##name(struct device *d, struct 
device_attribute *attr, \
 
 static ssize_t set_nfilters(struct net_device *dev, unsigned int val)
 {
-   struct adapter *adap = dev->priv;
+   struct port_info *pi = netdev_priv(dev);
+   struct adapter *adap = pi->adapter;
int min_tids = is_offload(adap) ? MC5_MIN_TIDS : 0;
 
if (adap->flags & FULL_INIT_DONE)
@@ -515,7 +520,8 @@ static ssize_t store_nfilters(struct device *d, struct 
device_attribute *attr,
 
 static ssize_t set_nservers(struct net_device *dev, unsigned int val)
 {
-   struct adapter *adap = dev->priv;
+   struct port_info *pi = netdev_priv(dev);
+   struct adapter *adap = pi->adapter;
 
if (adap->flags & FULL_INIT_DONE)
return -EBUSY;
@@ -556,9 +562,10 @@ static struct attribute_group cxgb3_attr_group = {.attrs = 
cxgb3_attrs };
 static ssize_t tm_attr_show(struct device *d, struct device_attribute *attr,
char *buf, int sched)
 {
-   ssize_t len;
+   struct port_info *pi = netdev_priv(to_net_dev(d));
+   struct adapter *adap = pi->adapter;
unsigned int v, addr, bpt, cpt;
-   struct adapter *adap = to_net_dev(d)->priv;
+   ssize_t len;
 
addr = A_TP_TX_MOD_Q1_Q0_RATE_LIMIT - sched / 2;
rtnl_lock();
@@ -581,10 +588,11 @@ static ssize_t tm_attr_show(struct device *d, struct 
device_attribute *attr,
 static ssize_t tm_attr_store(struct device *d, struct device_attribute *attr,
 const char *buf, size_t len, int sched)
 {
+   struct port_info *pi = netdev_priv(to_net_dev(d));
+   struct adapter *adap = pi->adapter;
+   unsigned int val;
char *endp;
ssize_t ret;
-   unsigned int val;
-  

[PATCH 12/13] cxgb3 - log and clear PEX errors

2007-08-10 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Clear pciE PEX errors late at module load time.
Log details when PEX errors occur.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/t3_hw.c |6 ++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index 3d47627..538b254 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -1355,6 +1355,10 @@ static void pcie_intr_handler(struct adapter *adapter)
{0}
};
 
+   if (t3_read_reg(adapter, A_PCIE_INT_CAUSE) & F_PEXERR)
+   CH_ALERT(adapter, "PEX error code 0x%x\n",
+t3_read_reg(adapter, A_PCIE_PEX_ERR));
+
if (t3_handle_intr_status(adapter, A_PCIE_INT_CAUSE, PCIE_INTR_MASK,
  pcie_intr_info, adapter->irq_stats))
t3_fatal_err(adapter);
@@ -1806,6 +1810,8 @@ void t3_intr_clear(struct adapter *adapter)
for (i = 0; i < ARRAY_SIZE(cause_reg_addr); ++i)
t3_write_reg(adapter, cause_reg_addr[i], 0x);
 
+   if (is_pcie(adapter))
+   t3_write_reg(adapter, A_PCIE_PEX_ERR, 0x);
t3_write_reg(adapter, A_PL_INT_CAUSE0, 0x);
t3_read_reg(adapter, A_PL_INT_CAUSE0);  /* flush */
 }
-
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[PATCH 13/13] cxgb3 - test MSI capabilities

2007-08-10 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Check that the HW in really in MSI/MSI-X mode
when it was succesfully enabled.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/cxgb3_main.c |   42 
 drivers/net/cxgb3/regs.h   |4 
 2 files changed, 46 insertions(+), 0 deletions(-)

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index eaebd7f..1449692 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -2318,6 +2318,46 @@ void t3_fatal_err(struct adapter *adapter)
 
 }
 
+/*
+ * Interrupt handler used to check if MSI/MSI-X works on this platform.
+ */
+static irqreturn_t check_intr_handler(int irq, void *cookie)
+{
+   struct adapter *adap = cookie;
+
+   t3_set_reg_field(adap, A_PL_INT_ENABLE0, F_MI1, 0);
+   return IRQ_HANDLED;
+}
+
+static void __devinit check_msi(struct adapter *adap)
+{
+   int vec, mi1;
+
+   if (!(t3_read_reg(adap, A_PL_INT_CAUSE0) & F_MI1))
+   return;
+
+   vec = (adap->flags & USING_MSI) ? adap->pdev->irq :
+ adap->msix_info[0].vec;
+
+   if (request_irq(vec, check_intr_handler, 0, adap->name, adap))
+   return;
+
+   t3_set_reg_field(adap, A_PL_INT_ENABLE0, 0, F_MI1);
+   msleep(10);
+   mi1 = t3_read_reg(adap, A_PL_INT_ENABLE0) & F_MI1;
+   if (mi1)
+   t3_set_reg_field(adap, A_PL_INT_ENABLE0, F_MI1, 0);
+   free_irq(vec, adap);
+
+   if (mi1) {
+   cxgb_disable_msi(adap);
+   dev_info(&adap->pdev->dev,
+"the kernel believes that MSI is available on this "
+"platform\nbut the driver's MSI test has failed.  "
+"Proceeding with INTx interrupts.\n");
+   }
+}
+
 static int __devinit cxgb_enable_msix(struct adapter *adap)
 {
struct msix_entry entries[SGE_QSETS + 1];
@@ -2554,6 +2594,8 @@ static int __devinit init_one(struct pci_dev *pdev,
adapter->flags |= USING_MSIX;
else if (msi > 0 && pci_enable_msi(pdev) == 0)
adapter->flags |= USING_MSI;
+   if (adapter->flags & (USING_MSIX | USING_MSI))
+   check_msi(adapter);
 
err = sysfs_create_group(&adapter->port[0]->dev.kobj,
 &cxgb3_attr_group);
diff --git a/drivers/net/cxgb3/regs.h b/drivers/net/cxgb3/regs.h
index 5e1bc0d..f97f8ab 100644
--- a/drivers/net/cxgb3/regs.h
+++ b/drivers/net/cxgb3/regs.h
@@ -1639,6 +1639,10 @@
 #define V_MC5A(x) ((x) << S_MC5A)
 #define F_MC5AV_MC5A(1U)
 
+#define S_MI113
+#define V_MI1(x) ((x) << S_MI1)
+#define F_MI1V_MI1(1U)
+
 #define S_CPL_SWITCH12
 #define V_CPL_SWITCH(x) ((x) << S_CPL_SWITCH)
 #define F_CPL_SWITCHV_CPL_SWITCH(1U)
-
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[PATCH 11/13] cxgb3 - Firmware update

2007-08-10 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Update firmware version
Allow the driver to be up and running with older FW image

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/common.h |2 +-
 drivers/net/cxgb3/cxgb3_main.c |9 +
 drivers/net/cxgb3/t3_hw.c  |   20 +++-
 drivers/net/cxgb3/version.h|2 +-
 4 files changed, 22 insertions(+), 11 deletions(-)

diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index b665b20..ff867c2 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -691,7 +691,7 @@ int t3_read_flash(struct adapter *adapter, unsigned int 
addr,
  unsigned int nwords, u32 *data, int byte_oriented);
 int t3_load_fw(struct adapter *adapter, const u8 * fw_data, unsigned int size);
 int t3_get_fw_version(struct adapter *adapter, u32 *vers);
-int t3_check_fw_version(struct adapter *adapter);
+int t3_check_fw_version(struct adapter *adapter, int *must_load);
 int t3_init_hw(struct adapter *adapter, u32 fw_params);
 void mac_prep(struct cmac *mac, struct adapter *adapter, int index);
 void early_hw_init(struct adapter *adapter, const struct adapter_info *ai);
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index 65ded16..eaebd7f 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -814,11 +814,12 @@ static int cxgb_up(struct adapter *adap)
int must_load;
 
if (!(adap->flags & FULL_INIT_DONE)) {
-   err = t3_check_fw_version(adap);
-   if (err == -EINVAL)
+   err = t3_check_fw_version(adap, &must_load);
+   if (err == -EINVAL) {
err = upgrade_fw(adap);
-   if (err)
-   goto out;
+   if (err && must_load)
+   goto out;
+   }
 
err = t3_check_tpsram_version(adap, &must_load);
if (err == -EINVAL) {
diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index 63032e8..3d47627 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -957,16 +957,18 @@ int t3_get_fw_version(struct adapter *adapter, u32 *vers)
 /**
  * t3_check_fw_version - check if the FW is compatible with this driver
  * @adapter: the adapter
- *
+ * @must_load: set to 1 if loading a new FW image is required
+
  * Checks if an adapter's FW is compatible with the driver.  Returns 0
  * if the versions are compatible, a negative error otherwise.
  */
-int t3_check_fw_version(struct adapter *adapter)
+int t3_check_fw_version(struct adapter *adapter, int *must_load)
 {
int ret;
u32 vers;
unsigned int type, major, minor;
 
+   *must_load = 1;
ret = t3_get_fw_version(adapter, &vers);
if (ret)
return ret;
@@ -979,9 +981,17 @@ int t3_check_fw_version(struct adapter *adapter)
minor == FW_VERSION_MINOR)
return 0;
 
-   CH_ERR(adapter, "found wrong FW version(%u.%u), "
-  "driver needs version %u.%u\n", major, minor,
-  FW_VERSION_MAJOR, FW_VERSION_MINOR);
+   if (major != FW_VERSION_MAJOR)
+   CH_ERR(adapter, "found wrong FW version(%u.%u), "
+  "driver needs version %u.%u\n", major, minor,
+  FW_VERSION_MAJOR, FW_VERSION_MINOR);
+   else {
+   *must_load = 0;
+   CH_WARN(adapter, "found wrong FW minor version(%u.%u), "
+   "driver compiled for version %u.%u\n", major, minor,
+   FW_VERSION_MAJOR, FW_VERSION_MINOR);
+   }
+
return -EINVAL;
 }
 
diff --git a/drivers/net/cxgb3/version.h b/drivers/net/cxgb3/version.h
index eb508bf..ef1c633 100644
--- a/drivers/net/cxgb3/version.h
+++ b/drivers/net/cxgb3/version.h
@@ -39,6 +39,6 @@
 
 /* Firmware version */
 #define FW_VERSION_MAJOR 4
-#define FW_VERSION_MINOR 3
+#define FW_VERSION_MINOR 6
 #define FW_VERSION_MICRO 0
 #endif /* __CHELSIO_VERSION_H */
-
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[PATCH 6/13] cxgb3 - tighten checks on TID values

2007-08-10 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Enforce validity checks on connection ids

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/cxgb3_defs.h|   20 ++--
 drivers/net/cxgb3/cxgb3_offload.c |   28 +++-
 2 files changed, 41 insertions(+), 7 deletions(-)

diff --git a/drivers/net/cxgb3/cxgb3_defs.h b/drivers/net/cxgb3/cxgb3_defs.h
index 483a594..45e9216 100644
--- a/drivers/net/cxgb3/cxgb3_defs.h
+++ b/drivers/net/cxgb3/cxgb3_defs.h
@@ -79,9 +79,17 @@ static inline struct t3c_tid_entry *lookup_tid(const struct 
tid_info *t,
 static inline struct t3c_tid_entry *lookup_stid(const struct tid_info *t,
unsigned int tid)
 {
+   union listen_entry *e;
+
if (tid < t->stid_base || tid >= t->stid_base + t->nstids)
return NULL;
-   return &(stid2entry(t, tid)->t3c_tid);
+
+   e = stid2entry(t, tid);
+   if ((void *)e->next >= (void *)t->tid_tab &&
+   (void *)e->next < (void *)&t->atid_tab[t->natids])
+   return NULL;
+
+   return &e->t3c_tid;
 }
 
 /*
@@ -90,9 +98,17 @@ static inline struct t3c_tid_entry *lookup_stid(const struct 
tid_info *t,
 static inline struct t3c_tid_entry *lookup_atid(const struct tid_info *t,
unsigned int tid)
 {
+   union active_open_entry *e;
+
if (tid < t->atid_base || tid >= t->atid_base + t->natids)
return NULL;
-   return &(atid2entry(t, tid)->t3c_tid);
+
+   e = atid2entry(t, tid);
+   if ((void *)e->next >= (void *)t->tid_tab &&
+   (void *)e->next < (void *)&t->atid_tab[t->natids])
+   return NULL;
+
+   return &e->t3c_tid;
 }
 
 int process_rx(struct t3cdev *dev, struct sk_buff **skbs, int n);
diff --git a/drivers/net/cxgb3/cxgb3_offload.c 
b/drivers/net/cxgb3/cxgb3_offload.c
index 522c1be..7fb526a 100644
--- a/drivers/net/cxgb3/cxgb3_offload.c
+++ b/drivers/net/cxgb3/cxgb3_offload.c
@@ -57,7 +57,7 @@ static DEFINE_RWLOCK(adapter_list_lock);
 static LIST_HEAD(adapter_list);
 
 static const unsigned int MAX_ATIDS = 64 * 1024;
-static const unsigned int ATID_BASE = 0x10;
+static const unsigned int ATID_BASE = 0x1;
 
 static inline int offload_activated(struct t3cdev *tdev)
 {
@@ -684,10 +684,19 @@ static int do_cr(struct t3cdev *dev, struct sk_buff *skb)
 {
struct cpl_pass_accept_req *req = cplhdr(skb);
unsigned int stid = G_PASS_OPEN_TID(ntohl(req->tos_tid));
+   struct tid_info *t = &(T3C_DATA(dev))->tid_maps;
struct t3c_tid_entry *t3c_tid;
+   unsigned int tid = GET_TID(req);
 
-   t3c_tid = lookup_stid(&(T3C_DATA(dev))->tid_maps, stid);
-   if (t3c_tid->ctx && t3c_tid->client->handlers &&
+   if (unlikely(tid >= t->ntids)) {
+   printk("%s: passive open TID %u too large\n",
+  dev->name, tid);
+   t3_fatal_err(tdev2adap(dev));
+   return CPL_RET_BUF_DONE;
+   }
+   
+   t3c_tid = lookup_stid(t, stid);
+   if (t3c_tid && t3c_tid->ctx && t3c_tid->client->handlers &&
t3c_tid->client->handlers[CPL_PASS_ACCEPT_REQ]) {
return t3c_tid->client->handlers[CPL_PASS_ACCEPT_REQ]
(dev, skb, t3c_tid->ctx);
@@ -769,16 +778,25 @@ static int do_act_establish(struct t3cdev *dev, struct 
sk_buff *skb)
 {
struct cpl_act_establish *req = cplhdr(skb);
unsigned int atid = G_PASS_OPEN_TID(ntohl(req->tos_tid));
+   struct tid_info *t = &(T3C_DATA(dev))->tid_maps;
struct t3c_tid_entry *t3c_tid;
+   unsigned int tid = GET_TID(req);
 
-   t3c_tid = lookup_atid(&(T3C_DATA(dev))->tid_maps, atid);
+   if (unlikely(tid >= t->ntids)) {
+   printk("%s: active establish TID %u too large\n",
+  dev->name, tid);
+   t3_fatal_err(tdev2adap(dev));
+   return CPL_RET_BUF_DONE;
+   }
+
+   t3c_tid = lookup_atid(t, atid);
if (t3c_tid && t3c_tid->ctx && t3c_tid->client->handlers &&
t3c_tid->client->handlers[CPL_ACT_ESTABLISH]) {
return t3c_tid->client->handlers[CPL_ACT_ESTABLISH]
(dev, skb, t3c_tid->ctx);
} else {
printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
-  dev->name, CPL_PASS_ACCEPT_REQ);
+  dev->name, CPL_ACT_ESTABLISH);
return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
}
 }
-
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[PATCH 10/13] cxgb3 - engine microcode update

2007-08-10 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Load microcode engine when the interface
is configured up.
Bump up version to 1.1.0.
Allow the driver to be and running with
older microcode images.
Allow ethtool to log the microcode version.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/common.h |8 ++-
 drivers/net/cxgb3/cxgb3_main.c |  116 
 drivers/net/cxgb3/t3_hw.c  |   43 +--
 3 files changed, 113 insertions(+), 54 deletions(-)

diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index d54446f..b665b20 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -127,8 +127,8 @@ enum {  /* adapter 
interrupt-maintained statistics */
 
 enum {
TP_VERSION_MAJOR= 1,
-   TP_VERSION_MINOR= 0,
-   TP_VERSION_MICRO= 44
+   TP_VERSION_MINOR= 1,
+   TP_VERSION_MICRO= 0
 };
 
 #define S_TP_VERSION_MAJOR 16
@@ -438,6 +438,7 @@ enum {  /* chip 
revisions */
T3_REV_A  = 0,
T3_REV_B  = 2,
T3_REV_B2 = 3,
+   T3_REV_C  = 4,
 };
 
 struct trace_params {
@@ -682,7 +683,8 @@ const struct adapter_info *t3_get_adapter_info(unsigned int 
board_id);
 int t3_seeprom_read(struct adapter *adapter, u32 addr, u32 *data);
 int t3_seeprom_write(struct adapter *adapter, u32 addr, u32 data);
 int t3_seeprom_wp(struct adapter *adapter, int enable);
-int t3_check_tpsram_version(struct adapter *adapter);
+int t3_get_tp_version(struct adapter *adapter, u32 *vers);
+int t3_check_tpsram_version(struct adapter *adapter, int *must_load);
 int t3_check_tpsram(struct adapter *adapter, u8 *tp_ram, unsigned int size);
 int t3_set_proto_sram(struct adapter *adap, u8 *data);
 int t3_read_flash(struct adapter *adapter, unsigned int addr,
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index e5744e7..65ded16 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -721,6 +721,7 @@ static void bind_qsets(struct adapter *adap)
 }
 
 #define FW_FNAME "t3fw-%d.%d.%d.bin"
+#define TPSRAM_NAME "t3%c_protocol_sram-%d.%d.%d.bin"
 
 static int upgrade_fw(struct adapter *adap)
 {
@@ -742,6 +743,61 @@ static int upgrade_fw(struct adapter *adap)
return ret;
 }
 
+static inline char t3rev2char(struct adapter *adapter)
+{
+   char rev = 0;
+
+   switch(adapter->params.rev) {
+   case T3_REV_A:
+   rev = 'a';
+   break;
+   case T3_REV_B:
+   case T3_REV_B2:
+   rev = 'b';
+   break;
+   case T3_REV_C:
+   rev = 'c';
+   break;
+   }
+   return rev;
+}
+
+int update_tpsram(struct adapter *adap)
+{
+   const struct firmware *tpsram;
+   char buf[64];
+   struct device *dev = &adap->pdev->dev;
+   int ret;
+   char rev;
+   
+   rev = t3rev2char(adap);
+   if (!rev)
+   return 0;
+
+   snprintf(buf, sizeof(buf), TPSRAM_NAME, rev,
+TP_VERSION_MAJOR, TP_VERSION_MINOR, TP_VERSION_MICRO);
+
+   ret = request_firmware(&tpsram, buf, dev);
+   if (ret < 0) {
+   dev_err(dev, "could not load TP SRAM: unable to load %s\n",
+   buf);
+   return ret;
+   }
+   
+   ret = t3_check_tpsram(adap, tpsram->data, tpsram->size);
+   if (ret)
+   goto release_tpsram;
+
+   ret = t3_set_proto_sram(adap, tpsram->data);
+   if (ret)
+   dev_err(dev, "loading protocol SRAM failed\n");
+
+release_tpsram:
+   release_firmware(tpsram);
+   
+   return ret;
+}
+
 /**
  * cxgb_up - enable the adapter
  * @adapter: adapter being enabled
@@ -755,6 +811,7 @@ static int upgrade_fw(struct adapter *adap)
 static int cxgb_up(struct adapter *adap)
 {
int err = 0;
+   int must_load;
 
if (!(adap->flags & FULL_INIT_DONE)) {
err = t3_check_fw_version(adap);
@@ -763,6 +820,13 @@ static int cxgb_up(struct adapter *adap)
if (err)
goto out;
 
+   err = t3_check_tpsram_version(adap, &must_load);
+   if (err == -EINVAL) {
+   err = update_tpsram(adap);
+   if (err && must_load)
+   goto out;
+   }
+
err = init_dummy_netdevs(adap);
if (err)
goto out;
@@ -1097,9 +1161,11 @@ static int get_eeprom_len(struct net_device *dev)
 static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
 {
u32 fw_vers = 0;
+   u32 tp_vers = 0;
struct adapter *adapter = dev->priv;
 
t3_get_fw_ve

[PATCH 9/13] cxgb3 - Update internal memory management

2007-08-10 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Set PM1 internal memory to round robin mode

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/regs.h  |2 ++
 drivers/net/cxgb3/t3_hw.c |2 ++
 2 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/net/cxgb3/regs.h b/drivers/net/cxgb3/regs.h
index 2824278..5e1bc0d 100644
--- a/drivers/net/cxgb3/regs.h
+++ b/drivers/net/cxgb3/regs.h
@@ -1326,6 +1326,7 @@
 #define V_D0_WEIGHT(x) ((x) << S_D0_WEIGHT)
 
 #define A_PM1_RX_CFG 0x5c0
+#define A_PM1_RX_MODE 0x5c4
 
 #define A_PM1_RX_INT_ENABLE 0x5d8
 
@@ -1394,6 +1395,7 @@
 #define A_PM1_RX_INT_CAUSE 0x5dc
 
 #define A_PM1_TX_CFG 0x5e0
+#define A_PM1_TX_MODE 0x5e4
 
 #define A_PM1_TX_INT_ENABLE 0x5f8
 
diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index 23b1a16..13bfbec 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -3189,6 +3189,8 @@ int t3_init_hw(struct adapter *adapter, u32 fw_params)
t3_set_reg_field(adapter, A_PCIX_CFG, 0, F_CLIDECEN);
 
t3_write_reg(adapter, A_PM1_RX_CFG, 0x);
+   t3_write_reg(adapter, A_PM1_RX_MODE, 0);
+   t3_write_reg(adapter, A_PM1_TX_MODE, 0);
init_hw_for_avail_ports(adapter, adapter->params.nports);
t3_sge_init(adapter, &adapter->params.sge);
 
-
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[PATCH 8/13] cxgb3 - log adapter derial number

2007-08-10 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Log HW serial number when cxgb3 module is loaded.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/common.h |2 ++
 drivers/net/cxgb3/cxgb3_main.c |6 --
 drivers/net/cxgb3/t3_hw.c  |3 ++-
 3 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index 55922ed..d54446f 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -97,6 +97,7 @@ enum {
MAX_NPORTS = 2, /* max # of ports */
MAX_FRAME_SIZE = 10240, /* max MAC frame size, including header + FCS */
EEPROMSIZE = 8192,  /* Serial EEPROM size */
+   SERNUM_LEN = 16,/* Serial # length */
RSS_TABLE_SIZE = 64,/* size of RSS lookup and mapping tables */
TCB_SIZE = 128, /* TCB size */
NMTUS = 16, /* size of MTU table */
@@ -391,6 +392,7 @@ struct vpd_params {
unsigned int uclk;
unsigned int mdc;
unsigned int mem_timing;
+   u8 sn[SERNUM_LEN + 1];
u8 eth_base[6];
u8 port_type[MAX_NPORTS];
unsigned short xauicfg[2];
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index a1f94cf..e5744e7 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -2333,10 +2333,12 @@ static void __devinit print_port_info(struct adapter 
*adap,
   (adap->flags & USING_MSIX) ? " MSI-X" :
   (adap->flags & USING_MSI) ? " MSI" : "");
if (adap->name == dev->name && adap->params.vpd.mclk)
-   printk(KERN_INFO "%s: %uMB CM, %uMB PMTX, %uMB PMRX\n",
+   printk(KERN_INFO
+  "%s: %uMB CM, %uMB PMTX, %uMB PMRX, S/N: %s\n",
   adap->name, t3_mc7_size(&adap->cm) >> 20,
   t3_mc7_size(&adap->pmtx) >> 20,
-  t3_mc7_size(&adap->pmrx) >> 20);
+  t3_mc7_size(&adap->pmrx) >> 20,
+  adap->params.vpd.sn);
}
 }
 
diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index dd3149d..23b1a16 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -505,7 +505,7 @@ struct t3_vpd {
u8 vpdr_len[2];
VPD_ENTRY(pn, 16);  /* part number */
VPD_ENTRY(ec, 16);  /* EC level */
-   VPD_ENTRY(sn, 16);  /* serial number */
+   VPD_ENTRY(sn, SERNUM_LEN); /* serial number */
VPD_ENTRY(na, 12);  /* MAC address base */
VPD_ENTRY(cclk, 6); /* core clock */
VPD_ENTRY(mclk, 6); /* mem clock */
@@ -648,6 +648,7 @@ static int get_vpd_params(struct adapter *adapter, struct 
vpd_params *p)
p->uclk = simple_strtoul(vpd.uclk_data, NULL, 10);
p->mdc = simple_strtoul(vpd.mdc_data, NULL, 10);
p->mem_timing = simple_strtoul(vpd.mt_data, NULL, 10);
+   memcpy(p->sn, vpd.sn_data, SERNUM_LEN);
 
/* Old eeproms didn't have port information */
if (adapter->params.rev == 0 && !vpd.port0_data[0]) {
-
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[PATCH 4/13] cxgb3 - use immediate data for offload Tx

2007-08-10 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Send small TX_DATA work requests as immediate data even when
there are fragments.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/sge.c |   17 +++--
 1 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index 9213cda..dca2716 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -1182,8 +1182,8 @@ int t3_eth_xmit(struct sk_buff *skb, struct net_device 
*dev)
  *
  * Writes a packet as immediate data into a Tx descriptor.  The packet
  * contains a work request at its beginning.  We must write the packet
- * carefully so the SGE doesn't read accidentally before it's written in
- * its entirety.
+ * carefully so the SGE doesn't read it accidentally before it's written
+ * in its entirety.
  */
 static inline void write_imm(struct tx_desc *d, struct sk_buff *skb,
 unsigned int len, unsigned int gen)
@@ -1191,7 +1191,11 @@ static inline void write_imm(struct tx_desc *d, struct 
sk_buff *skb,
struct work_request_hdr *from = (struct work_request_hdr *)skb->data;
struct work_request_hdr *to = (struct work_request_hdr *)d;
 
-   memcpy(&to[1], &from[1], len - sizeof(*from));
+   if (likely(!skb->data_len))
+   memcpy(&to[1], &from[1], len - sizeof(*from));
+   else
+   skb_copy_bits(skb, sizeof(*from), &to[1], len - sizeof(*from));
+
to->wr_hi = from->wr_hi | htonl(F_WR_SOP | F_WR_EOP |
V_WR_BCNTLFLT(len & 7));
wmb();
@@ -1261,7 +1265,7 @@ static inline void reclaim_completed_tx_imm(struct 
sge_txq *q)
 
 static inline int immediate(const struct sk_buff *skb)
 {
-   return skb->len <= WR_LEN && !skb->data_len;
+   return skb->len <= WR_LEN;
 }
 
 /**
@@ -1467,12 +1471,13 @@ static void write_ofld_wr(struct adapter *adap, struct 
sk_buff *skb,
  */
 static inline unsigned int calc_tx_descs_ofld(const struct sk_buff *skb)
 {
-   unsigned int flits, cnt = skb_shinfo(skb)->nr_frags;
+   unsigned int flits, cnt;
 
-   if (skb->len <= WR_LEN && cnt == 0)
+   if (skb->len <= WR_LEN)
return 1;   /* packet fits as immediate data */
 
flits = skb_transport_offset(skb) / 8;  /* headers */
+   cnt = skb_shinfo(skb)->nr_frags;
if (skb->tail != skb->transport_header)
cnt++;
return flits_to_desc(flits + sgl_len(cnt));
-
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[PATCH 5/13] cxgb3 - Expose HW memory page info

2007-08-10 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Let the RDMA driver get HW page info to work around HW issues.
Assign explicit enum values.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/cxgb3_ctl_defs.h |   52 +---
 drivers/net/cxgb3/cxgb3_offload.c  |7 +
 2 files changed, 38 insertions(+), 21 deletions(-)

diff --git a/drivers/net/cxgb3/cxgb3_ctl_defs.h 
b/drivers/net/cxgb3/cxgb3_ctl_defs.h
index 2095dda..6c4f320 100644
--- a/drivers/net/cxgb3/cxgb3_ctl_defs.h
+++ b/drivers/net/cxgb3/cxgb3_ctl_defs.h
@@ -33,27 +33,29 @@
 #define _CXGB3_OFFLOAD_CTL_DEFS_H
 
 enum {
-   GET_MAX_OUTSTANDING_WR,
-   GET_TX_MAX_CHUNK,
-   GET_TID_RANGE,
-   GET_STID_RANGE,
-   GET_RTBL_RANGE,
-   GET_L2T_CAPACITY,
-   GET_MTUS,
-   GET_WR_LEN,
-   GET_IFF_FROM_MAC,
-   GET_DDP_PARAMS,
-   GET_PORTS,
-
-   ULP_ISCSI_GET_PARAMS,
-   ULP_ISCSI_SET_PARAMS,
-
-   RDMA_GET_PARAMS,
-   RDMA_CQ_OP,
-   RDMA_CQ_SETUP,
-   RDMA_CQ_DISABLE,
-   RDMA_CTRL_QP_SETUP,
-   RDMA_GET_MEM,
+   GET_MAX_OUTSTANDING_WR  = 0,
+   GET_TX_MAX_CHUNK= 1,
+   GET_TID_RANGE   = 2,
+   GET_STID_RANGE  = 3,
+   GET_RTBL_RANGE  = 4,
+   GET_L2T_CAPACITY= 5,
+   GET_MTUS= 6,
+   GET_WR_LEN  = 7,
+   GET_IFF_FROM_MAC= 8,
+   GET_DDP_PARAMS  = 9,
+   GET_PORTS   = 10,
+
+   ULP_ISCSI_GET_PARAMS= 11,
+   ULP_ISCSI_SET_PARAMS= 12,
+
+   RDMA_GET_PARAMS = 13,
+   RDMA_CQ_OP  = 14,
+   RDMA_CQ_SETUP   = 15,
+   RDMA_CQ_DISABLE = 16,
+   RDMA_CTRL_QP_SETUP  = 17,
+   RDMA_GET_MEM= 18,
+
+   GET_RX_PAGE_INFO= 50,
 };
 
 /*
@@ -161,4 +163,12 @@ struct rdma_ctrlqp_setup {
unsigned long long base_addr;
unsigned int size;
 };
+
+/*
+ * Offload TX/RX page information.
+ */
+struct ofld_page_info {
+   unsigned int page_size;  /* Page size, should be a power of 2 */
+   unsigned int num;/* Number of pages */
+};
 #endif /* _CXGB3_OFFLOAD_CTL_DEFS_H */
diff --git a/drivers/net/cxgb3/cxgb3_offload.c 
b/drivers/net/cxgb3/cxgb3_offload.c
index e620ed4..522c1be 100644
--- a/drivers/net/cxgb3/cxgb3_offload.c
+++ b/drivers/net/cxgb3/cxgb3_offload.c
@@ -317,6 +317,8 @@ static int cxgb_offload_ctl(struct t3cdev *tdev, unsigned 
int req, void *data)
struct iff_mac *iffmacp;
struct ddp_params *ddpp;
struct adap_ports *ports;
+   struct ofld_page_info *rx_page_info;
+   struct tp_params *tp = &adapter->params.tp;
int i;
 
switch (req) {
@@ -382,6 +384,11 @@ static int cxgb_offload_ctl(struct t3cdev *tdev, unsigned 
int req, void *data)
if (!offload_running(adapter))
return -EAGAIN;
return cxgb_rdma_ctl(adapter, req, data);
+   case GET_RX_PAGE_INFO:
+   rx_page_info = data;
+   rx_page_info->page_size = tp->rx_pg_size;
+   rx_page_info->num = tp->rx_num_pgs;
+   break;
default:
return -EOPNOTSUPP;
}
-
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[PATCH 7/13] cxgb3 - Fatal error update

2007-08-10 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Stop the MAC when a fatal error is detected.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/cxgb3_main.c |4 
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index dc5d269..a1f94cf 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -2270,6 +2270,10 @@ void t3_fatal_err(struct adapter *adapter)
 
if (adapter->flags & FULL_INIT_DONE) {
t3_sge_stop(adapter);
+   t3_write_reg(adapter, A_XGM_TX_CTRL, 0);
+   t3_write_reg(adapter, A_XGM_RX_CTRL, 0);
+   t3_write_reg(adapter, XGM_REG(A_XGM_TX_CTRL, 1), 0);
+   t3_write_reg(adapter, XGM_REG(A_XGM_RX_CTRL, 1), 0);
t3_intr_disable(adapter);
}
CH_ALERT(adapter, "encountered fatal error, operation suspended\n");
-
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[PATCH 2/13] cxgb3 - Update rx coalescing length

2007-08-10 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Set max Rx coalescing length to 12288

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/common.h |2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index c46c249..55922ed 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -104,7 +104,7 @@ enum {
PROTO_SRAM_LINES = 128, /* size of TP sram */
 };
 
-#define MAX_RX_COALESCING_LEN 16224U
+#define MAX_RX_COALESCING_LEN 12288U
 
 enum {
PAUSE_RX = 1 << 0,
-
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[PATCH 3/13] cxgb3 - SGE doorbell overflow warning

2007-08-10 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Log doorbell Fifo overflow

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/regs.h |8 
 drivers/net/cxgb3/sge.c  |4 
 2 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/drivers/net/cxgb3/regs.h b/drivers/net/cxgb3/regs.h
index aa80313..2824278 100644
--- a/drivers/net/cxgb3/regs.h
+++ b/drivers/net/cxgb3/regs.h
@@ -172,6 +172,14 @@
 
 #define A_SG_INT_CAUSE 0x5c
 
+#define S_HIPIODRBDROPERR11
+#define V_HIPIODRBDROPERR(x) ((x) << S_HIPIODRBDROPERR)
+#define F_HIPIODRBDROPERRV_HIPIODRBDROPERR(1U)
+
+#define S_LOPIODRBDROPERR10
+#define V_LOPIODRBDROPERR(x) ((x) << S_LOPIODRBDROPERR)
+#define F_LOPIODRBDROPERRV_LOPIODRBDROPERR(1U)
+
 #define S_RSPQDISABLED3
 #define V_RSPQDISABLED(x) ((x) << S_RSPQDISABLED)
 #define F_RSPQDISABLEDV_RSPQDISABLED(1U)
diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index a2cfd68..9213cda 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -2476,6 +2476,10 @@ void t3_sge_err_intr_handler(struct adapter *adapter)
 "(0x%x)\n", (v >> S_RSPQ0DISABLED) & 0xff);
}
 
+   if (status & (F_HIPIODRBDROPERR | F_LOPIODRBDROPERR))
+   CH_ALERT(adapter, "SGE dropped %s priority doorbell\n",
+status & F_HIPIODRBDROPERR ? "high" : "lo");
+
t3_write_reg(adapter, A_SG_INT_CAUSE, status);
if (status & (F_RSPQCREDITOVERFOW | F_RSPQDISABLED))
t3_fatal_err(adapter);
-
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[PATCH 1/13] cxgb3 - MAC workaround update

2007-08-10 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Update the MAC workaround to deal with switches that do not
honor pause frames.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/common.h |1 +
 drivers/net/cxgb3/xgmac.c  |   22 +++---
 2 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index 1637800..c46c249 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -507,6 +507,7 @@ struct cmac {
unsigned int tx_xcnt;
u64 tx_mcnt;
unsigned int rx_xcnt;
+   unsigned int rx_ocnt;
u64 rx_mcnt;
unsigned int toggle_cnt;
unsigned int txen;
diff --git a/drivers/net/cxgb3/xgmac.c b/drivers/net/cxgb3/xgmac.c
index c302b1a..1d1c391 100644
--- a/drivers/net/cxgb3/xgmac.c
+++ b/drivers/net/cxgb3/xgmac.c
@@ -437,12 +437,13 @@ int t3_mac_enable(struct cmac *mac, int which)
struct mac_stats *s = &mac->stats;

if (which & MAC_DIRECTION_TX) {
-   t3_write_reg(adap, A_XGM_TX_CTRL + oft, F_TXEN);
t3_write_reg(adap, A_TP_PIO_ADDR, A_TP_TX_DROP_CFG_CH0 + idx);
t3_write_reg(adap, A_TP_PIO_DATA, 0xc0ede401);
t3_write_reg(adap, A_TP_PIO_ADDR, A_TP_TX_DROP_MODE);
t3_set_reg_field(adap, A_TP_PIO_DATA, 1 << idx, 1 << idx);
 
+   t3_write_reg(adap, A_XGM_TX_CTRL + oft, F_TXEN);
+
t3_write_reg(adap, A_TP_PIO_ADDR, A_TP_TX_DROP_CNT_CH0 + idx);
mac->tx_mcnt = s->tx_frames;
mac->tx_tcnt = (G_TXDROPCNTCH0RCVD(t3_read_reg(adap,
@@ -454,6 +455,7 @@ int t3_mac_enable(struct cmac *mac, int which)
mac->rx_xcnt = (G_TXSPI4SOPCNT(t3_read_reg(adap,
A_XGM_RX_SPI4_SOP_EOP_CNT +
oft)));
+   mac->rx_ocnt = s->rx_fifo_ovfl;
mac->txen = F_TXEN;
mac->toggle_cnt = 0;
}
@@ -464,24 +466,19 @@ int t3_mac_enable(struct cmac *mac, int which)
 
 int t3_mac_disable(struct cmac *mac, int which)
 {
-   int idx = macidx(mac);
struct adapter *adap = mac->adapter;
-   int val;
 
if (which & MAC_DIRECTION_TX) {
t3_write_reg(adap, A_XGM_TX_CTRL + mac->offset, 0);
-   t3_write_reg(adap, A_TP_PIO_ADDR, A_TP_TX_DROP_CFG_CH0 + idx);
-   t3_write_reg(adap, A_TP_PIO_DATA, 0xc01f);
-   t3_write_reg(adap, A_TP_PIO_ADDR, A_TP_TX_DROP_MODE);
-   t3_set_reg_field(adap, A_TP_PIO_DATA, 1 << idx, 1 << idx);
mac->txen = 0;
}
if (which & MAC_DIRECTION_RX) {
+   int val = F_MAC_RESET_;
+
t3_set_reg_field(mac->adapter, A_XGM_RESET_CTRL + mac->offset,
 F_PCS_RESET_, 0);
msleep(100);
t3_write_reg(adap, A_XGM_RX_CTRL + mac->offset, 0);
-   val = F_MAC_RESET_;
if (is_10G(adap))
val |= F_PCS_RESET_;
else if (uses_xaui(adap))
@@ -541,11 +538,14 @@ int t3b2_mac_watchdog_task(struct cmac *mac)
}
 
 rxcheck:
-   if (rx_mcnt != mac->rx_mcnt)
+   if (rx_mcnt != mac->rx_mcnt) {
rx_xcnt = (G_TXSPI4SOPCNT(t3_read_reg(adap,
A_XGM_RX_SPI4_SOP_EOP_CNT +
-   mac->offset)));
-   else
+   mac->offset))) +
+   (s->rx_fifo_ovfl -
+mac->rx_ocnt);
+   mac->rx_ocnt = s->rx_fifo_ovfl;
+   } else
goto out;
 
if (mac->rx_mcnt != s->rx_frames && rx_xcnt == 0 &&
-
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Re: [2.6 patch] drivers/net/cxgb3/xgmac.c: remove dead code

2007-07-31 Thread Divy Le Ray

Adrian Bunk wrote:


This patch removes dead code ("tx_xcnt" can never be != 0 at this place)
spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <[EMAIL PROTECTED]>


Acked-by: Divy Le Ray <[EMAIL PROTECTED]>



---

 drivers/net/cxgb3/xgmac.c |5 +
 1 file changed, 1 insertion(+), 4 deletions(-)

--- linux-2.6.22-rc6-mm1/drivers/net/cxgb3/xgmac.c.old  2007-07-24 
13:55:33.0 +0200
+++ linux-2.6.22-rc6-mm1/drivers/net/cxgb3/xgmac.c  2007-07-24 
13:57:06.0 +0200

@@ -510,38 +510,35 @@ int t3b2_mac_watchdog_task(struct cmac *
if (tx_mcnt == mac->tx_mcnt) {
tx_xcnt = (G_TXSPI4SOPCNT(t3_read_reg(adap,

A_XGM_TX_SPI4_SOP_EOP_CNT +

mac->offset)));
if (tx_xcnt == 0) {
t3_write_reg(adap, A_TP_PIO_ADDR,
 A_TP_TX_DROP_CNT_CH0 + macidx(mac));
tx_tcnt = (G_TXDROPCNTCH0RCVD(t3_read_reg(adap,
  A_TP_PIO_DATA)));
} else {
goto rxcheck;
}
} else {
mac->toggle_cnt = 0;
goto rxcheck;
}

-   if (((tx_tcnt != mac->tx_tcnt) &&
-(tx_xcnt == 0) && (mac->tx_xcnt == 0)) ||
-   ((mac->tx_mcnt == tx_mcnt) &&
-(tx_xcnt != 0) && (mac->tx_xcnt != 0))) {
+   if ((tx_tcnt != mac->tx_tcnt) && (mac->tx_xcnt == 0))  {
if (mac->toggle_cnt > 4) {
status = 2;
goto out;
} else {
status = 1;
goto out;
}
} else {
mac->toggle_cnt = 0;
goto rxcheck;
}

 rxcheck:
if (rx_mcnt != mac->rx_mcnt)
rx_xcnt = (G_TXSPI4SOPCNT(t3_read_reg(adap,

A_XGM_RX_SPI4_SOP_EOP_CNT +

mac->offset)));



-
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[PATCH 2.6.22] cxgb3 - fix register to stop bc/mc traffic

2007-06-25 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

Use the right register to stop broadcast/multicast traffic. 

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/xgmac.c |8 +---
 1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/cxgb3/xgmac.c b/drivers/net/cxgb3/xgmac.c
index b261be1..c302b1a 100644
--- a/drivers/net/cxgb3/xgmac.c
+++ b/drivers/net/cxgb3/xgmac.c
@@ -335,11 +335,11 @@ int t3_mac_set_mtu(struct cmac *mac, uns
hwm = min(hwm, MAC_RXFIFO_SIZE - 8192);
lwm = min(3 * (int)mtu, MAC_RXFIFO_SIZE / 4);
 
-   v = t3_read_reg(adap, A_XGM_RXFIFO_CFG + mac->offset);
if (adap->params.rev == T3_REV_B2 &&
(t3_read_reg(adap, A_XGM_RX_CTRL + mac->offset) & F_RXEN)) {
disable_exact_filters(mac);
-   t3_set_reg_field(adap, A_XGM_RXFIFO_CFG + mac->offset,
+   v = t3_read_reg(adap, A_XGM_RX_CFG + mac->offset);
+   t3_set_reg_field(adap, A_XGM_RX_CFG + mac->offset,
 F_ENHASHMCAST | F_COPYALLFRAMES, F_DISBCAST);
 
/* drain rx FIFO */
@@ -347,11 +347,12 @@ int t3_mac_set_mtu(struct cmac *mac, uns
A_XGM_RX_MAX_PKT_SIZE_ERR_CNT +
mac->offset,
1 << 31, 1, 20, 5)) {
-   t3_write_reg(adap, A_XGM_RXFIFO_CFG + mac->offset, v);
+   t3_write_reg(adap, A_XGM_RX_CFG + mac->offset, v);
enable_exact_filters(mac);
return -EIO;
}
t3_write_reg(adap, A_XGM_RX_MAX_PKT_SIZE + mac->offset, mtu);
+   t3_write_reg(adap, A_XGM_RX_CFG + mac->offset, v);
enable_exact_filters(mac);
} else
t3_write_reg(adap, A_XGM_RX_MAX_PKT_SIZE + mac->offset, mtu);
@@ -362,6 +363,7 @@ int t3_mac_set_mtu(struct cmac *mac, uns
 */
hwm = rx_fifo_hwm(mtu);
lwm = min(3 * (int)mtu, MAC_RXFIFO_SIZE / 4);
+   v = t3_read_reg(adap, A_XGM_RXFIFO_CFG + mac->offset);
v &= ~V_RXFIFOPAUSELWM(M_RXFIFOPAUSELWM);
v |= V_RXFIFOPAUSELWM(lwm / 8);
if (G_RXFIFOPAUSEHWM(v))

-
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Re: [PATCH 2.6.22 0/5] cxgb3 - bug fixes

2007-06-05 Thread Divy Le Ray

Divy Le Ray wrote:

Divy Le Ray wrote:

Hi Jeff,

I'm submitting a set of bug fixes for inclusion in 2.6.22.
The patches are built against Linus'git tree.



The mail title was incomplete. sorry about that.

Cheers,
Divy



Hi Jeff,

Did you get a chance to review the series I posted for driver fixes and 
updates ?


Cheers,
Divy
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[PATCH 3/3] cxgb3 - TP SRAM update

2007-05-30 Thread Divy Le Ray
From: Divy Le Ray <[EMAIL PROTECTED]>

The chip executes microcode present in internal RAM, 
whose content is loaded from EEPROM on power cycle. 
This patch allows an update of the microcode through PIO
without forcing a power cycle.

Signed-off-by: Divy Le Ray <[EMAIL PROTECTED]>
---

 drivers/net/cxgb3/common.h |   28 +
 drivers/net/cxgb3/cxgb3_main.c |   43 
 drivers/net/cxgb3/regs.h   |7 +++
 drivers/net/cxgb3/t3_hw.c  |   86 
 4 files changed, 164 insertions(+), 0 deletions(-)

diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index 8d13796..1637800 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -101,6 +101,7 @@ enum {
TCB_SIZE = 128, /* TCB size */
NMTUS = 16, /* size of MTU table */
NCCTRL_WIN = 32,/* # of congestion control windows */
+   PROTO_SRAM_LINES = 128, /* size of TP sram */
 };
 
 #define MAX_RX_COALESCING_LEN 16224U
@@ -124,6 +125,30 @@ enum { /* adapter 
interrupt-maintaine
 };
 
 enum {
+   TP_VERSION_MAJOR= 1,
+   TP_VERSION_MINOR= 0,
+   TP_VERSION_MICRO= 44
+};
+
+#define S_TP_VERSION_MAJOR 16
+#define M_TP_VERSION_MAJOR 0xFF
+#define V_TP_VERSION_MAJOR(x)  ((x) << S_TP_VERSION_MAJOR)
+#define G_TP_VERSION_MAJOR(x)  \
+   (((x) >> S_TP_VERSION_MAJOR) & M_TP_VERSION_MAJOR)
+
+#define S_TP_VERSION_MINOR 8
+#define M_TP_VERSION_MINOR 0xFF
+#define V_TP_VERSION_MINOR(x)  ((x) << S_TP_VERSION_MINOR)
+#define G_TP_VERSION_MINOR(x)  \
+   (((x) >> S_TP_VERSION_MINOR) & M_TP_VERSION_MINOR)
+
+#define S_TP_VERSION_MICRO 0
+#define M_TP_VERSION_MICRO 0xFF
+#define V_TP_VERSION_MICRO(x)  ((x) << S_TP_VERSION_MICRO)
+#define G_TP_VERSION_MICRO(x)  \
+   (((x) >> S_TP_VERSION_MICRO) & M_TP_VERSION_MICRO)
+
+enum {
SGE_QSETS = 8,  /* # of SGE Tx/Rx/RspQ sets */
SGE_RXQ_PER_SET = 2,/* # of Rx queues per set */
SGE_TXQ_PER_SET = 3 /* # of Tx queues per set */
@@ -654,6 +679,9 @@ const struct adapter_info *t3_get_adapte
 int t3_seeprom_read(struct adapter *adapter, u32 addr, u32 *data);
 int t3_seeprom_write(struct adapter *adapter, u32 addr, u32 data);
 int t3_seeprom_wp(struct adapter *adapter, int enable);
+int t3_check_tpsram_version(struct adapter *adapter);
+int t3_check_tpsram(struct adapter *adapter, u8 *tp_ram, unsigned int size);
+int t3_set_proto_sram(struct adapter *adap, u8 *data);
 int t3_read_flash(struct adapter *adapter, unsigned int addr,
  unsigned int nwords, u32 *data, int byte_oriented);
 int t3_load_fw(struct adapter *adapter, const u8 * fw_data, unsigned int size);
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index 67b4b21..5b80a2a 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -2083,6 +2083,42 @@ static void cxgb_netpoll(struct net_devi
 }
 #endif
 
+#define TPSRAM_NAME "t3%c_protocol_sram-%d.%d.%d.bin"
+int update_tpsram(struct adapter *adap)
+{
+   const struct firmware *tpsram;
+   char buf[64];
+   struct device *dev = &adap->pdev->dev;
+   int ret;
+   char rev;
+   
+   rev = adap->params.rev == T3_REV_B2 ? 'b' : 'a';
+
+   snprintf(buf, sizeof(buf), TPSRAM_NAME, rev,
+TP_VERSION_MAJOR, TP_VERSION_MINOR, TP_VERSION_MICRO);
+
+   ret = request_firmware(&tpsram, buf, dev);
+   if (ret < 0) {
+   dev_err(dev, "could not load TP SRAM: unable to load %s\n",
+   buf);
+   return ret;
+   }
+   
+   ret = t3_check_tpsram(adap, tpsram->data, tpsram->size);
+   if (ret)
+   goto release_tpsram;
+
+   ret = t3_set_proto_sram(adap, tpsram->data);
+   if (ret)
+   dev_err(dev, "loading protocol SRAM failed\n");
+
+release_tpsram:
+   release_firmware(tpsram);
+   
+   return ret;
+}
+
+
 /*
  * Periodic accumulation of MAC statistics.
  */
@@ -2433,6 +2469,13 @@ static int __devinit init_one(struct pci
goto out_free_dev;
}
 
+   err = t3_check_tpsram_version(adapter);
+   if (err == -EINVAL)
+   err = update_tpsram(adapter);
+
+   if (err)
+   goto out_free_dev;
+   
/*
 * The card is now ready to go.  If any errors occur during device
 * registration we do not fail the whole card but rather proceed only
diff --git a/drivers/net/cxgb3/regs.h b/drivers/net/cxgb3/regs.h
index 29839ba..e9d3a79 100644
--- a/drivers/net/cxgb3/regs.h
+++ b/drivers/net/cxgb3/regs.h
@@ -

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