diff options
author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-09-12 11:14:33 -0400 |
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committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-09-12 11:14:33 -0400 |
commit | 25a765b7f05cb8460fa01b54568894b20e184862 (patch) | |
tree | 0b56db57b4d9f912393ab303c269e0fe6cdf8635 /drivers/net/ethernet/mellanox/mlx4/cmd.c | |
parent | 9d2be9287107695708e6aae5105a8a518a6cb4d0 (diff) | |
parent | 64282278989d5b0398dcb3ba7904cb00c621dc35 (diff) |
Merge branch 'x86/platform' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into stable/for-linus-3.7
* 'x86/platform' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (9690 commits)
x86: Document x86_init.paging.pagetable_init()
x86: xen: Cleanup and remove x86_init.paging.pagetable_setup_done()
x86: Move paging_init() call to x86_init.paging.pagetable_init()
x86: Rename pagetable_setup_start() to pagetable_init()
x86: Remove base argument from x86_init.paging.pagetable_setup_start
Linux 3.6-rc5
HID: tpkbd: work even if the new Lenovo Keyboard driver is not configured
Remove user-triggerable BUG from mpol_to_str
xen/pciback: Fix proper FLR steps.
uml: fix compile error in deliver_alarm()
dj: memory scribble in logi_dj
Fix order of arguments to compat_put_time[spec|val]
xen: Use correct masking in xen_swiotlb_alloc_coherent.
xen: fix logical error in tlb flushing
xen/p2m: Fix one-off error in checking the P2M tree directory.
powerpc: Don't use __put_user() in patch_instruction
powerpc: Make sure IPI handlers see data written by IPI senders
powerpc: Restore correct DSCR in context switch
powerpc: Fix DSCR inheritance in copy_thread()
powerpc: Keep thread.dscr and thread.dscr_inherit in sync
...
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/cmd.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/cmd.c | 68 |
1 files changed, 66 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c index 842c8ce9494e..c8fef4353021 100644 --- a/drivers/net/ethernet/mellanox/mlx4/cmd.c +++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c @@ -296,7 +296,12 @@ int mlx4_comm_cmd(struct mlx4_dev *dev, u8 cmd, u16 param, static int cmd_pending(struct mlx4_dev *dev) { - u32 status = readl(mlx4_priv(dev)->cmd.hcr + HCR_STATUS_OFFSET); + u32 status; + + if (pci_channel_offline(dev->pdev)) + return -EIO; + + status = readl(mlx4_priv(dev)->cmd.hcr + HCR_STATUS_OFFSET); return (status & swab32(1 << HCR_GO_BIT)) || (mlx4_priv(dev)->cmd.toggle == @@ -314,11 +319,29 @@ static int mlx4_cmd_post(struct mlx4_dev *dev, u64 in_param, u64 out_param, mutex_lock(&cmd->hcr_mutex); + if (pci_channel_offline(dev->pdev)) { + /* + * Device is going through error recovery + * and cannot accept commands. + */ + ret = -EIO; + goto out; + } + end = jiffies; if (event) end += msecs_to_jiffies(GO_BIT_TIMEOUT_MSECS); while (cmd_pending(dev)) { + if (pci_channel_offline(dev->pdev)) { + /* + * Device is going through error recovery + * and cannot accept commands. + */ + ret = -EIO; + goto out; + } + if (time_after_eq(jiffies, end)) { mlx4_err(dev, "%s:cmd_pending failed\n", __func__); goto out; @@ -431,14 +454,33 @@ static int mlx4_cmd_poll(struct mlx4_dev *dev, u64 in_param, u64 *out_param, down(&priv->cmd.poll_sem); + if (pci_channel_offline(dev->pdev)) { + /* + * Device is going through error recovery + * and cannot accept commands. + */ + err = -EIO; + goto out; + } + err = mlx4_cmd_post(dev, in_param, out_param ? *out_param : 0, in_modifier, op_modifier, op, CMD_POLL_TOKEN, 0); if (err) goto out; end = msecs_to_jiffies(timeout) + jiffies; - while (cmd_pending(dev) && time_before(jiffies, end)) + while (cmd_pending(dev) && time_before(jiffies, end)) { + if (pci_channel_offline(dev->pdev)) { + /* + * Device is going through error recovery + * and cannot accept commands. + */ + err = -EIO; + goto out; + } + cond_resched(); + } if (cmd_pending(dev)) { err = -ETIMEDOUT; @@ -532,6 +574,9 @@ int __mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param, int out_is_imm, u32 in_modifier, u8 op_modifier, u16 op, unsigned long timeout, int native) { + if (pci_channel_offline(dev->pdev)) + return -EIO; + if (!mlx4_is_mfunc(dev) || (native && mlx4_is_master(dev))) { if (mlx4_priv(dev)->cmd.use_events) return mlx4_cmd_wait(dev, in_param, out_param, @@ -1080,6 +1125,25 @@ static struct mlx4_cmd_info cmd_info[] = { .verify = NULL, .wrapper = NULL }, + /* flow steering commands */ + { + .opcode = MLX4_QP_FLOW_STEERING_ATTACH, + .has_inbox = true, + .has_outbox = false, + .out_is_imm = true, + .encode_slave_id = false, + .verify = NULL, + .wrapper = mlx4_QP_FLOW_STEERING_ATTACH_wrapper + }, + { + .opcode = MLX4_QP_FLOW_STEERING_DETACH, + .has_inbox = false, + .has_outbox = false, + .out_is_imm = false, + .encode_slave_id = false, + .verify = NULL, + .wrapper = mlx4_QP_FLOW_STEERING_DETACH_wrapper + }, }; static int mlx4_master_process_vhcr(struct mlx4_dev *dev, int slave, |