2022-06-07 14:11:24 +00:00
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// SPDX-License-Identifier: GPL-2.0-only
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2009-04-18 01:33:26 +00:00
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/*
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* Copyright 2008 Cisco Systems, Inc. All rights reserved.
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* Copyright 2007 Nuova Systems, Inc. All rights reserved.
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*/
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/types.h>
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#include <linux/pci.h>
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#include <linux/delay.h>
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#include <linux/if_ether.h>
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 08:04:11 +00:00
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#include <linux/slab.h>
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2009-04-18 01:33:26 +00:00
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#include "vnic_resource.h"
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#include "vnic_devcmd.h"
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#include "vnic_dev.h"
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#include "vnic_stats.h"
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2019-01-18 22:51:41 +00:00
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#include "vnic_wq.h"
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struct devcmd2_controller {
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struct vnic_wq_ctrl *wq_ctrl;
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struct vnic_dev_ring results_ring;
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struct vnic_wq wq;
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struct vnic_devcmd2 *cmd_ring;
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struct devcmd2_result *result;
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u16 next_result;
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u16 result_size;
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int color;
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};
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enum vnic_proxy_type {
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PROXY_NONE,
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PROXY_BY_BDF,
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PROXY_BY_INDEX,
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};
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2009-04-18 01:33:26 +00:00
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struct vnic_res {
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void __iomem *vaddr;
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unsigned int count;
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};
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struct vnic_dev {
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void *priv;
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struct pci_dev *pdev;
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struct vnic_res res[RES_TYPE_MAX];
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enum vnic_dev_intr_mode intr_mode;
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struct vnic_devcmd __iomem *devcmd;
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struct vnic_devcmd_notify *notify;
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struct vnic_devcmd_notify notify_copy;
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dma_addr_t notify_pa;
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u32 *linkstatus;
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dma_addr_t linkstatus_pa;
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struct vnic_stats *stats;
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dma_addr_t stats_pa;
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struct vnic_devcmd_fw_info *fw_info;
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dma_addr_t fw_info_pa;
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2019-01-18 22:51:41 +00:00
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enum vnic_proxy_type proxy;
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u32 proxy_index;
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u64 args[VNIC_DEVCMD_NARGS];
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struct devcmd2_controller *devcmd2;
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int (*devcmd_rtn)(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
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int wait);
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2009-04-18 01:33:26 +00:00
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};
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#define VNIC_MAX_RES_HDR_SIZE \
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(sizeof(struct vnic_resource_header) + \
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sizeof(struct vnic_resource) * RES_TYPE_MAX)
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#define VNIC_RES_STRIDE 128
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void *vnic_dev_priv(struct vnic_dev *vdev)
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{
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return vdev->priv;
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}
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static int vnic_dev_discover_res(struct vnic_dev *vdev,
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struct vnic_dev_bar *bar)
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{
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struct vnic_resource_header __iomem *rh;
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struct vnic_resource __iomem *r;
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u8 type;
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if (bar->len < VNIC_MAX_RES_HDR_SIZE) {
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printk(KERN_ERR "vNIC BAR0 res hdr length error\n");
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return -EINVAL;
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}
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rh = bar->vaddr;
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if (!rh) {
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printk(KERN_ERR "vNIC BAR0 res hdr not mem-mapped\n");
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return -EINVAL;
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}
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if (ioread32(&rh->magic) != VNIC_RES_MAGIC ||
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ioread32(&rh->version) != VNIC_RES_VERSION) {
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printk(KERN_ERR "vNIC BAR0 res magic/version error "
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"exp (%lx/%lx) curr (%x/%x)\n",
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VNIC_RES_MAGIC, VNIC_RES_VERSION,
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ioread32(&rh->magic), ioread32(&rh->version));
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return -EINVAL;
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}
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r = (struct vnic_resource __iomem *)(rh + 1);
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while ((type = ioread8(&r->type)) != RES_TYPE_EOL) {
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u8 bar_num = ioread8(&r->bar);
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u32 bar_offset = ioread32(&r->bar_offset);
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u32 count = ioread32(&r->count);
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u32 len;
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r++;
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if (bar_num != 0) /* only mapping in BAR0 resources */
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continue;
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switch (type) {
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case RES_TYPE_WQ:
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case RES_TYPE_RQ:
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case RES_TYPE_CQ:
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case RES_TYPE_INTR_CTRL:
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/* each count is stride bytes long */
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len = count * VNIC_RES_STRIDE;
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if (len + bar_offset > bar->len) {
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printk(KERN_ERR "vNIC BAR0 resource %d "
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"out-of-bounds, offset 0x%x + "
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"size 0x%x > bar len 0x%lx\n",
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type, bar_offset,
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len,
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bar->len);
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return -EINVAL;
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}
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break;
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case RES_TYPE_INTR_PBA_LEGACY:
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2019-01-18 22:51:41 +00:00
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case RES_TYPE_DEVCMD2:
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2009-04-18 01:33:26 +00:00
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case RES_TYPE_DEVCMD:
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len = count;
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break;
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default:
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continue;
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}
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vdev->res[type].count = count;
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vdev->res[type].vaddr = (char __iomem *)bar->vaddr + bar_offset;
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}
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return 0;
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}
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unsigned int vnic_dev_get_res_count(struct vnic_dev *vdev,
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enum vnic_res_type type)
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{
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return vdev->res[type].count;
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}
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void __iomem *vnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type,
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unsigned int index)
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{
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if (!vdev->res[type].vaddr)
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return NULL;
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switch (type) {
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case RES_TYPE_WQ:
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case RES_TYPE_RQ:
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case RES_TYPE_CQ:
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case RES_TYPE_INTR_CTRL:
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return (char __iomem *)vdev->res[type].vaddr +
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index * VNIC_RES_STRIDE;
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default:
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return (char __iomem *)vdev->res[type].vaddr;
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}
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}
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unsigned int vnic_dev_desc_ring_size(struct vnic_dev_ring *ring,
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unsigned int desc_count,
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unsigned int desc_size)
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{
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/* The base address of the desc rings must be 512 byte aligned.
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* Descriptor count is aligned to groups of 32 descriptors. A
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* count of 0 means the maximum 4096 descriptors. Descriptor
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* size is aligned to 16 bytes.
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*/
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unsigned int count_align = 32;
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unsigned int desc_align = 16;
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ring->base_align = 512;
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if (desc_count == 0)
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desc_count = 4096;
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ring->desc_count = ALIGN(desc_count, count_align);
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ring->desc_size = ALIGN(desc_size, desc_align);
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ring->size = ring->desc_count * ring->desc_size;
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ring->size_unaligned = ring->size + ring->base_align;
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return ring->size_unaligned;
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}
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void vnic_dev_clear_desc_ring(struct vnic_dev_ring *ring)
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{
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memset(ring->descs, 0, ring->size);
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}
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int vnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring,
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unsigned int desc_count, unsigned int desc_size)
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{
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vnic_dev_desc_ring_size(ring, desc_count, desc_size);
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2018-10-10 16:40:56 +00:00
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ring->descs_unaligned = dma_alloc_coherent(&vdev->pdev->dev,
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2009-04-18 01:33:26 +00:00
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ring->size_unaligned,
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2018-10-10 16:40:56 +00:00
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&ring->base_addr_unaligned, GFP_KERNEL);
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2009-04-18 01:33:26 +00:00
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if (!ring->descs_unaligned) {
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printk(KERN_ERR
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"Failed to allocate ring (size=%d), aborting\n",
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(int)ring->size);
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return -ENOMEM;
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}
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ring->base_addr = ALIGN(ring->base_addr_unaligned,
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ring->base_align);
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ring->descs = (u8 *)ring->descs_unaligned +
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(ring->base_addr - ring->base_addr_unaligned);
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vnic_dev_clear_desc_ring(ring);
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ring->desc_avail = ring->desc_count - 1;
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return 0;
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}
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void vnic_dev_free_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring)
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{
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if (ring->descs) {
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2018-10-10 16:40:56 +00:00
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dma_free_coherent(&vdev->pdev->dev,
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2009-04-18 01:33:26 +00:00
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ring->size_unaligned,
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ring->descs_unaligned,
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ring->base_addr_unaligned);
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ring->descs = NULL;
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}
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}
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2020-04-15 09:38:07 +00:00
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static int vnic_dev_cmd1(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd, int wait)
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2009-04-18 01:33:26 +00:00
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{
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struct vnic_devcmd __iomem *devcmd = vdev->devcmd;
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int delay;
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u32 status;
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2019-09-06 16:39:45 +00:00
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static const int dev_cmd_err[] = {
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2009-04-18 01:33:26 +00:00
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/* convert from fw's version of error.h to host's version */
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0, /* ERR_SUCCESS */
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EINVAL, /* ERR_EINVAL */
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EFAULT, /* ERR_EFAULT */
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EPERM, /* ERR_EPERM */
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EBUSY, /* ERR_EBUSY */
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};
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int err;
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2019-01-18 22:51:41 +00:00
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u64 *a0 = &vdev->args[0];
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u64 *a1 = &vdev->args[1];
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2009-04-18 01:33:26 +00:00
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status = ioread32(&devcmd->status);
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if (status & STAT_BUSY) {
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printk(KERN_ERR "Busy devcmd %d\n", _CMD_N(cmd));
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return -EBUSY;
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}
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if (_CMD_DIR(cmd) & _CMD_DIR_WRITE) {
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writeq(*a0, &devcmd->args[0]);
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writeq(*a1, &devcmd->args[1]);
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wmb();
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}
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iowrite32(cmd, &devcmd->cmd);
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if ((_CMD_FLAGS(cmd) & _CMD_FLAGS_NOWAIT))
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return 0;
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for (delay = 0; delay < wait; delay++) {
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udelay(100);
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status = ioread32(&devcmd->status);
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if (!(status & STAT_BUSY)) {
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if (status & STAT_ERROR) {
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err = dev_cmd_err[(int)readq(&devcmd->args[0])];
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printk(KERN_ERR "Error %d devcmd %d\n",
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err, _CMD_N(cmd));
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return -err;
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}
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if (_CMD_DIR(cmd) & _CMD_DIR_READ) {
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rmb();
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*a0 = readq(&devcmd->args[0]);
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*a1 = readq(&devcmd->args[1]);
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}
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return 0;
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}
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}
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printk(KERN_ERR "Timedout devcmd %d\n", _CMD_N(cmd));
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return -ETIMEDOUT;
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}
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2020-04-15 09:38:07 +00:00
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static int vnic_dev_cmd2(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
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2019-01-18 22:51:43 +00:00
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int wait)
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{
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struct devcmd2_controller *dc2c = vdev->devcmd2;
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|
struct devcmd2_result *result;
|
|
|
|
u8 color;
|
|
|
|
unsigned int i;
|
|
|
|
int delay;
|
|
|
|
int err;
|
|
|
|
u32 fetch_index;
|
|
|
|
u32 posted;
|
|
|
|
u32 new_posted;
|
|
|
|
|
|
|
|
posted = ioread32(&dc2c->wq_ctrl->posted_index);
|
|
|
|
fetch_index = ioread32(&dc2c->wq_ctrl->fetch_index);
|
|
|
|
|
|
|
|
if (posted == 0xFFFFFFFF || fetch_index == 0xFFFFFFFF) {
|
|
|
|
/* Hardware surprise removal: return error */
|
|
|
|
pr_err("%s: devcmd2 invalid posted or fetch index on cmd %d\n",
|
|
|
|
pci_name(vdev->pdev), _CMD_N(cmd));
|
|
|
|
pr_err("%s: fetch index: %u, posted index: %u\n",
|
|
|
|
pci_name(vdev->pdev), fetch_index, posted);
|
|
|
|
|
|
|
|
return -ENODEV;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
new_posted = (posted + 1) % DEVCMD2_RING_SIZE;
|
|
|
|
|
|
|
|
if (new_posted == fetch_index) {
|
|
|
|
pr_err("%s: devcmd2 wq full while issuing cmd %d\n",
|
|
|
|
pci_name(vdev->pdev), _CMD_N(cmd));
|
|
|
|
pr_err("%s: fetch index: %u, posted index: %u\n",
|
|
|
|
pci_name(vdev->pdev), fetch_index, posted);
|
|
|
|
return -EBUSY;
|
|
|
|
|
|
|
|
}
|
|
|
|
dc2c->cmd_ring[posted].cmd = cmd;
|
|
|
|
dc2c->cmd_ring[posted].flags = 0;
|
|
|
|
|
|
|
|
if ((_CMD_FLAGS(cmd) & _CMD_FLAGS_NOWAIT))
|
|
|
|
dc2c->cmd_ring[posted].flags |= DEVCMD2_FNORESULT;
|
|
|
|
if (_CMD_DIR(cmd) & _CMD_DIR_WRITE) {
|
|
|
|
for (i = 0; i < VNIC_DEVCMD_NARGS; i++)
|
|
|
|
dc2c->cmd_ring[posted].args[i] = vdev->args[i];
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Adding write memory barrier prevents compiler and/or CPU
|
|
|
|
* reordering, thus avoiding descriptor posting before
|
|
|
|
* descriptor is initialized. Otherwise, hardware can read
|
|
|
|
* stale descriptor fields.
|
|
|
|
*/
|
|
|
|
wmb();
|
|
|
|
iowrite32(new_posted, &dc2c->wq_ctrl->posted_index);
|
|
|
|
|
|
|
|
if (dc2c->cmd_ring[posted].flags & DEVCMD2_FNORESULT)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
result = dc2c->result + dc2c->next_result;
|
|
|
|
color = dc2c->color;
|
|
|
|
|
|
|
|
dc2c->next_result++;
|
|
|
|
if (dc2c->next_result == dc2c->result_size) {
|
|
|
|
dc2c->next_result = 0;
|
|
|
|
dc2c->color = dc2c->color ? 0 : 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (delay = 0; delay < wait; delay++) {
|
|
|
|
udelay(100);
|
|
|
|
if (result->color == color) {
|
|
|
|
if (result->error) {
|
|
|
|
err = -(int) result->error;
|
|
|
|
if (err != ERR_ECMDUNKNOWN ||
|
|
|
|
cmd != CMD_CAPABILITY)
|
|
|
|
pr_err("%s:Error %d devcmd %d\n",
|
|
|
|
pci_name(vdev->pdev),
|
|
|
|
err, _CMD_N(cmd));
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
if (_CMD_DIR(cmd) & _CMD_DIR_READ) {
|
|
|
|
rmb(); /*prevent reorder while reding result*/
|
|
|
|
for (i = 0; i < VNIC_DEVCMD_NARGS; i++)
|
|
|
|
vdev->args[i] = result->results[i];
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
pr_err("%s:Timed out devcmd %d\n", pci_name(vdev->pdev), _CMD_N(cmd));
|
|
|
|
|
|
|
|
return -ETIMEDOUT;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2020-04-15 09:38:07 +00:00
|
|
|
static int vnic_dev_init_devcmd1(struct vnic_dev *vdev)
|
2019-01-18 22:51:43 +00:00
|
|
|
{
|
|
|
|
vdev->devcmd = vnic_dev_get_res(vdev, RES_TYPE_DEVCMD, 0);
|
|
|
|
if (!vdev->devcmd)
|
|
|
|
return -ENODEV;
|
|
|
|
|
|
|
|
vdev->devcmd_rtn = &vnic_dev_cmd1;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2020-04-15 09:38:07 +00:00
|
|
|
static int vnic_dev_init_devcmd2(struct vnic_dev *vdev)
|
2019-01-18 22:51:43 +00:00
|
|
|
{
|
|
|
|
int err;
|
|
|
|
unsigned int fetch_index;
|
|
|
|
|
|
|
|
if (vdev->devcmd2)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
vdev->devcmd2 = kzalloc(sizeof(*vdev->devcmd2), GFP_ATOMIC);
|
|
|
|
if (!vdev->devcmd2)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
vdev->devcmd2->color = 1;
|
|
|
|
vdev->devcmd2->result_size = DEVCMD2_RING_SIZE;
|
|
|
|
err = vnic_wq_devcmd2_alloc(vdev, &vdev->devcmd2->wq,
|
|
|
|
DEVCMD2_RING_SIZE, DEVCMD2_DESC_SIZE);
|
|
|
|
if (err)
|
|
|
|
goto err_free_devcmd2;
|
|
|
|
|
|
|
|
fetch_index = ioread32(&vdev->devcmd2->wq.ctrl->fetch_index);
|
|
|
|
if (fetch_index == 0xFFFFFFFF) { /* check for hardware gone */
|
|
|
|
pr_err("error in devcmd2 init");
|
2020-12-25 08:35:20 +00:00
|
|
|
err = -ENODEV;
|
|
|
|
goto err_free_wq;
|
2019-01-18 22:51:43 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Don't change fetch_index ever and
|
|
|
|
* set posted_index same as fetch_index
|
|
|
|
* when setting up the WQ for devcmd2.
|
|
|
|
*/
|
|
|
|
vnic_wq_init_start(&vdev->devcmd2->wq, 0, fetch_index,
|
|
|
|
fetch_index, 0, 0);
|
|
|
|
|
|
|
|
vnic_wq_enable(&vdev->devcmd2->wq);
|
|
|
|
|
|
|
|
err = vnic_dev_alloc_desc_ring(vdev, &vdev->devcmd2->results_ring,
|
|
|
|
DEVCMD2_RING_SIZE, DEVCMD2_DESC_SIZE);
|
|
|
|
if (err)
|
2020-12-25 08:35:20 +00:00
|
|
|
goto err_disable_wq;
|
2019-01-18 22:51:43 +00:00
|
|
|
|
|
|
|
vdev->devcmd2->result =
|
|
|
|
(struct devcmd2_result *) vdev->devcmd2->results_ring.descs;
|
|
|
|
vdev->devcmd2->cmd_ring =
|
|
|
|
(struct vnic_devcmd2 *) vdev->devcmd2->wq.ring.descs;
|
|
|
|
vdev->devcmd2->wq_ctrl = vdev->devcmd2->wq.ctrl;
|
|
|
|
vdev->args[0] = (u64) vdev->devcmd2->results_ring.base_addr |
|
|
|
|
VNIC_PADDR_TARGET;
|
|
|
|
vdev->args[1] = DEVCMD2_RING_SIZE;
|
|
|
|
|
|
|
|
err = vnic_dev_cmd2(vdev, CMD_INITIALIZE_DEVCMD2, 1000);
|
|
|
|
if (err)
|
|
|
|
goto err_free_desc_ring;
|
|
|
|
|
|
|
|
vdev->devcmd_rtn = &vnic_dev_cmd2;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
err_free_desc_ring:
|
|
|
|
vnic_dev_free_desc_ring(vdev, &vdev->devcmd2->results_ring);
|
2020-12-25 08:35:20 +00:00
|
|
|
err_disable_wq:
|
2019-01-18 22:51:43 +00:00
|
|
|
vnic_wq_disable(&vdev->devcmd2->wq);
|
2020-12-25 08:35:20 +00:00
|
|
|
err_free_wq:
|
2019-01-18 22:51:43 +00:00
|
|
|
vnic_wq_free(&vdev->devcmd2->wq);
|
|
|
|
err_free_devcmd2:
|
|
|
|
kfree(vdev->devcmd2);
|
|
|
|
vdev->devcmd2 = NULL;
|
|
|
|
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2020-04-15 09:38:07 +00:00
|
|
|
static void vnic_dev_deinit_devcmd2(struct vnic_dev *vdev)
|
2019-01-18 22:51:43 +00:00
|
|
|
{
|
|
|
|
vnic_dev_free_desc_ring(vdev, &vdev->devcmd2->results_ring);
|
|
|
|
vnic_wq_disable(&vdev->devcmd2->wq);
|
|
|
|
vnic_wq_free(&vdev->devcmd2->wq);
|
|
|
|
kfree(vdev->devcmd2);
|
|
|
|
vdev->devcmd2 = NULL;
|
|
|
|
vdev->devcmd_rtn = &vnic_dev_cmd1;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2020-04-15 09:38:07 +00:00
|
|
|
static int vnic_dev_cmd_no_proxy(struct vnic_dev *vdev,
|
2019-01-18 22:51:43 +00:00
|
|
|
enum vnic_devcmd_cmd cmd, u64 *a0, u64 *a1, int wait)
|
|
|
|
{
|
|
|
|
int err;
|
|
|
|
|
|
|
|
vdev->args[0] = *a0;
|
|
|
|
vdev->args[1] = *a1;
|
|
|
|
|
|
|
|
err = (*vdev->devcmd_rtn)(vdev, cmd, wait);
|
|
|
|
|
|
|
|
*a0 = vdev->args[0];
|
|
|
|
*a1 = vdev->args[1];
|
|
|
|
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
|
|
|
|
u64 *a0, u64 *a1, int wait)
|
|
|
|
{
|
|
|
|
memset(vdev->args, 0, sizeof(vdev->args));
|
|
|
|
|
|
|
|
switch (vdev->proxy) {
|
|
|
|
case PROXY_NONE:
|
|
|
|
default:
|
|
|
|
return vnic_dev_cmd_no_proxy(vdev, cmd, a0, a1, wait);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-04-18 01:33:26 +00:00
|
|
|
int vnic_dev_fw_info(struct vnic_dev *vdev,
|
|
|
|
struct vnic_devcmd_fw_info **fw_info)
|
|
|
|
{
|
|
|
|
u64 a0, a1 = 0;
|
|
|
|
int wait = 1000;
|
|
|
|
int err = 0;
|
|
|
|
|
|
|
|
if (!vdev->fw_info) {
|
2018-10-10 16:40:56 +00:00
|
|
|
vdev->fw_info = dma_alloc_coherent(&vdev->pdev->dev,
|
2009-04-18 01:33:26 +00:00
|
|
|
sizeof(struct vnic_devcmd_fw_info),
|
2018-10-10 16:40:56 +00:00
|
|
|
&vdev->fw_info_pa, GFP_KERNEL);
|
2009-04-18 01:33:26 +00:00
|
|
|
if (!vdev->fw_info)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
a0 = vdev->fw_info_pa;
|
|
|
|
|
|
|
|
/* only get fw_info once and cache it */
|
|
|
|
err = vnic_dev_cmd(vdev, CMD_MCPU_FW_INFO, &a0, &a1, wait);
|
|
|
|
}
|
|
|
|
|
|
|
|
*fw_info = vdev->fw_info;
|
|
|
|
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
int vnic_dev_spec(struct vnic_dev *vdev, unsigned int offset, unsigned int size,
|
|
|
|
void *value)
|
|
|
|
{
|
|
|
|
u64 a0, a1;
|
|
|
|
int wait = 1000;
|
|
|
|
int err;
|
|
|
|
|
|
|
|
a0 = offset;
|
|
|
|
a1 = size;
|
|
|
|
|
|
|
|
err = vnic_dev_cmd(vdev, CMD_DEV_SPEC, &a0, &a1, wait);
|
|
|
|
|
|
|
|
switch (size) {
|
|
|
|
case 1:
|
|
|
|
*(u8 *)value = (u8)a0;
|
|
|
|
break;
|
|
|
|
case 2:
|
|
|
|
*(u16 *)value = (u16)a0;
|
|
|
|
break;
|
|
|
|
case 4:
|
|
|
|
*(u32 *)value = (u32)a0;
|
|
|
|
break;
|
|
|
|
case 8:
|
|
|
|
*(u64 *)value = a0;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
BUG();
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
int vnic_dev_stats_clear(struct vnic_dev *vdev)
|
|
|
|
{
|
|
|
|
u64 a0 = 0, a1 = 0;
|
|
|
|
int wait = 1000;
|
|
|
|
return vnic_dev_cmd(vdev, CMD_STATS_CLEAR, &a0, &a1, wait);
|
|
|
|
}
|
|
|
|
|
|
|
|
int vnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats)
|
|
|
|
{
|
|
|
|
u64 a0, a1;
|
|
|
|
int wait = 1000;
|
|
|
|
|
|
|
|
if (!vdev->stats) {
|
2018-10-10 16:40:56 +00:00
|
|
|
vdev->stats = dma_alloc_coherent(&vdev->pdev->dev,
|
|
|
|
sizeof(struct vnic_stats), &vdev->stats_pa, GFP_KERNEL);
|
2009-04-18 01:33:26 +00:00
|
|
|
if (!vdev->stats)
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
*stats = vdev->stats;
|
|
|
|
a0 = vdev->stats_pa;
|
|
|
|
a1 = sizeof(struct vnic_stats);
|
|
|
|
|
|
|
|
return vnic_dev_cmd(vdev, CMD_STATS_DUMP, &a0, &a1, wait);
|
|
|
|
}
|
|
|
|
|
|
|
|
int vnic_dev_close(struct vnic_dev *vdev)
|
|
|
|
{
|
|
|
|
u64 a0 = 0, a1 = 0;
|
|
|
|
int wait = 1000;
|
|
|
|
return vnic_dev_cmd(vdev, CMD_CLOSE, &a0, &a1, wait);
|
|
|
|
}
|
|
|
|
|
|
|
|
int vnic_dev_enable(struct vnic_dev *vdev)
|
|
|
|
{
|
|
|
|
u64 a0 = 0, a1 = 0;
|
|
|
|
int wait = 1000;
|
|
|
|
return vnic_dev_cmd(vdev, CMD_ENABLE, &a0, &a1, wait);
|
|
|
|
}
|
|
|
|
|
|
|
|
int vnic_dev_disable(struct vnic_dev *vdev)
|
|
|
|
{
|
|
|
|
u64 a0 = 0, a1 = 0;
|
|
|
|
int wait = 1000;
|
|
|
|
return vnic_dev_cmd(vdev, CMD_DISABLE, &a0, &a1, wait);
|
|
|
|
}
|
|
|
|
|
|
|
|
int vnic_dev_open(struct vnic_dev *vdev, int arg)
|
|
|
|
{
|
|
|
|
u64 a0 = (u32)arg, a1 = 0;
|
|
|
|
int wait = 1000;
|
|
|
|
return vnic_dev_cmd(vdev, CMD_OPEN, &a0, &a1, wait);
|
|
|
|
}
|
|
|
|
|
|
|
|
int vnic_dev_open_done(struct vnic_dev *vdev, int *done)
|
|
|
|
{
|
|
|
|
u64 a0 = 0, a1 = 0;
|
|
|
|
int wait = 1000;
|
|
|
|
int err;
|
|
|
|
|
|
|
|
*done = 0;
|
|
|
|
|
|
|
|
err = vnic_dev_cmd(vdev, CMD_OPEN_STATUS, &a0, &a1, wait);
|
|
|
|
if (err)
|
|
|
|
return err;
|
|
|
|
|
|
|
|
*done = (a0 == 0);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int vnic_dev_soft_reset(struct vnic_dev *vdev, int arg)
|
|
|
|
{
|
|
|
|
u64 a0 = (u32)arg, a1 = 0;
|
|
|
|
int wait = 1000;
|
|
|
|
return vnic_dev_cmd(vdev, CMD_SOFT_RESET, &a0, &a1, wait);
|
|
|
|
}
|
|
|
|
|
|
|
|
int vnic_dev_soft_reset_done(struct vnic_dev *vdev, int *done)
|
|
|
|
{
|
|
|
|
u64 a0 = 0, a1 = 0;
|
|
|
|
int wait = 1000;
|
|
|
|
int err;
|
|
|
|
|
|
|
|
*done = 0;
|
|
|
|
|
|
|
|
err = vnic_dev_cmd(vdev, CMD_SOFT_RESET_STATUS, &a0, &a1, wait);
|
|
|
|
if (err)
|
|
|
|
return err;
|
|
|
|
|
|
|
|
*done = (a0 == 0);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int vnic_dev_hang_notify(struct vnic_dev *vdev)
|
|
|
|
{
|
2020-01-07 20:15:49 +00:00
|
|
|
u64 a0 = 0, a1 = 0;
|
2009-04-18 01:33:26 +00:00
|
|
|
int wait = 1000;
|
|
|
|
return vnic_dev_cmd(vdev, CMD_HANG_NOTIFY, &a0, &a1, wait);
|
|
|
|
}
|
|
|
|
|
|
|
|
int vnic_dev_mac_addr(struct vnic_dev *vdev, u8 *mac_addr)
|
|
|
|
{
|
2020-01-07 20:15:49 +00:00
|
|
|
u64 a[2] = {};
|
2009-04-18 01:33:26 +00:00
|
|
|
int wait = 1000;
|
|
|
|
int err, i;
|
|
|
|
|
|
|
|
for (i = 0; i < ETH_ALEN; i++)
|
|
|
|
mac_addr[i] = 0;
|
|
|
|
|
2020-01-07 20:15:49 +00:00
|
|
|
err = vnic_dev_cmd(vdev, CMD_MAC_ADDR, &a[0], &a[1], wait);
|
2009-04-18 01:33:26 +00:00
|
|
|
if (err)
|
|
|
|
return err;
|
|
|
|
|
|
|
|
for (i = 0; i < ETH_ALEN; i++)
|
2020-01-07 20:15:49 +00:00
|
|
|
mac_addr[i] = ((u8 *)&a)[i];
|
2009-04-18 01:33:26 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast,
|
|
|
|
int broadcast, int promisc, int allmulti)
|
|
|
|
{
|
|
|
|
u64 a0, a1 = 0;
|
|
|
|
int wait = 1000;
|
|
|
|
int err;
|
|
|
|
|
|
|
|
a0 = (directed ? CMD_PFILTER_DIRECTED : 0) |
|
|
|
|
(multicast ? CMD_PFILTER_MULTICAST : 0) |
|
|
|
|
(broadcast ? CMD_PFILTER_BROADCAST : 0) |
|
|
|
|
(promisc ? CMD_PFILTER_PROMISCUOUS : 0) |
|
|
|
|
(allmulti ? CMD_PFILTER_ALL_MULTICAST : 0);
|
|
|
|
|
|
|
|
err = vnic_dev_cmd(vdev, CMD_PACKET_FILTER, &a0, &a1, wait);
|
|
|
|
if (err)
|
|
|
|
printk(KERN_ERR "Can't set packet filter\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
void vnic_dev_add_addr(struct vnic_dev *vdev, u8 *addr)
|
|
|
|
{
|
2020-01-07 20:15:49 +00:00
|
|
|
u64 a[2] = {};
|
2009-04-18 01:33:26 +00:00
|
|
|
int wait = 1000;
|
|
|
|
int err;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < ETH_ALEN; i++)
|
2020-01-07 20:15:49 +00:00
|
|
|
((u8 *)&a)[i] = addr[i];
|
2009-04-18 01:33:26 +00:00
|
|
|
|
2020-01-07 20:15:49 +00:00
|
|
|
err = vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a[0], &a[1], wait);
|
2009-04-18 01:33:26 +00:00
|
|
|
if (err)
|
2016-10-22 17:32:26 +00:00
|
|
|
pr_err("Can't add addr [%pM], %d\n", addr, err);
|
2009-04-18 01:33:26 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void vnic_dev_del_addr(struct vnic_dev *vdev, u8 *addr)
|
|
|
|
{
|
2020-01-07 20:15:49 +00:00
|
|
|
u64 a[2] = {};
|
2009-04-18 01:33:26 +00:00
|
|
|
int wait = 1000;
|
|
|
|
int err;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < ETH_ALEN; i++)
|
2020-01-07 20:15:49 +00:00
|
|
|
((u8 *)&a)[i] = addr[i];
|
2009-04-18 01:33:26 +00:00
|
|
|
|
2020-01-07 20:15:49 +00:00
|
|
|
err = vnic_dev_cmd(vdev, CMD_ADDR_DEL, &a[0], &a[1], wait);
|
2009-04-18 01:33:26 +00:00
|
|
|
if (err)
|
2016-10-22 17:32:26 +00:00
|
|
|
pr_err("Can't del addr [%pM], %d\n", addr, err);
|
2009-04-18 01:33:26 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr)
|
|
|
|
{
|
|
|
|
u64 a0, a1;
|
|
|
|
int wait = 1000;
|
|
|
|
|
|
|
|
if (!vdev->notify) {
|
2018-10-10 16:40:56 +00:00
|
|
|
vdev->notify = dma_alloc_coherent(&vdev->pdev->dev,
|
2009-04-18 01:33:26 +00:00
|
|
|
sizeof(struct vnic_devcmd_notify),
|
2018-10-10 16:40:56 +00:00
|
|
|
&vdev->notify_pa, GFP_KERNEL);
|
2009-04-18 01:33:26 +00:00
|
|
|
if (!vdev->notify)
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
a0 = vdev->notify_pa;
|
|
|
|
a1 = ((u64)intr << 32) & 0x0000ffff00000000ULL;
|
|
|
|
a1 += sizeof(struct vnic_devcmd_notify);
|
|
|
|
|
|
|
|
return vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait);
|
|
|
|
}
|
|
|
|
|
|
|
|
void vnic_dev_notify_unset(struct vnic_dev *vdev)
|
|
|
|
{
|
|
|
|
u64 a0, a1;
|
|
|
|
int wait = 1000;
|
|
|
|
|
|
|
|
a0 = 0; /* paddr = 0 to unset notify buffer */
|
|
|
|
a1 = 0x0000ffff00000000ULL; /* intr num = -1 to unreg for intr */
|
|
|
|
a1 += sizeof(struct vnic_devcmd_notify);
|
|
|
|
|
|
|
|
vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int vnic_dev_notify_ready(struct vnic_dev *vdev)
|
|
|
|
{
|
|
|
|
u32 *words;
|
|
|
|
unsigned int nwords = sizeof(struct vnic_devcmd_notify) / 4;
|
|
|
|
unsigned int i;
|
|
|
|
u32 csum;
|
|
|
|
|
|
|
|
if (!vdev->notify)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
do {
|
|
|
|
csum = 0;
|
|
|
|
memcpy(&vdev->notify_copy, vdev->notify,
|
|
|
|
sizeof(struct vnic_devcmd_notify));
|
|
|
|
words = (u32 *)&vdev->notify_copy;
|
|
|
|
for (i = 1; i < nwords; i++)
|
|
|
|
csum += words[i];
|
|
|
|
} while (csum != words[0]);
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
int vnic_dev_init(struct vnic_dev *vdev, int arg)
|
|
|
|
{
|
|
|
|
u64 a0 = (u32)arg, a1 = 0;
|
|
|
|
int wait = 1000;
|
|
|
|
return vnic_dev_cmd(vdev, CMD_INIT, &a0, &a1, wait);
|
|
|
|
}
|
|
|
|
|
2013-02-26 00:18:36 +00:00
|
|
|
u16 vnic_dev_set_default_vlan(struct vnic_dev *vdev, u16 new_default_vlan)
|
|
|
|
{
|
|
|
|
u64 a0 = new_default_vlan, a1 = 0;
|
|
|
|
int wait = 1000;
|
|
|
|
int old_vlan = 0;
|
|
|
|
|
|
|
|
old_vlan = vnic_dev_cmd(vdev, CMD_SET_DEFAULT_VLAN, &a0, &a1, wait);
|
|
|
|
return (u16)old_vlan;
|
|
|
|
}
|
|
|
|
|
2009-04-18 01:33:26 +00:00
|
|
|
int vnic_dev_link_status(struct vnic_dev *vdev)
|
|
|
|
{
|
|
|
|
if (vdev->linkstatus)
|
|
|
|
return *vdev->linkstatus;
|
|
|
|
|
|
|
|
if (!vnic_dev_notify_ready(vdev))
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
return vdev->notify_copy.link_state;
|
|
|
|
}
|
|
|
|
|
|
|
|
u32 vnic_dev_port_speed(struct vnic_dev *vdev)
|
|
|
|
{
|
|
|
|
if (!vnic_dev_notify_ready(vdev))
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
return vdev->notify_copy.port_speed;
|
|
|
|
}
|
|
|
|
|
|
|
|
u32 vnic_dev_msg_lvl(struct vnic_dev *vdev)
|
|
|
|
{
|
|
|
|
if (!vnic_dev_notify_ready(vdev))
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
return vdev->notify_copy.msglvl;
|
|
|
|
}
|
|
|
|
|
|
|
|
u32 vnic_dev_mtu(struct vnic_dev *vdev)
|
|
|
|
{
|
|
|
|
if (!vnic_dev_notify_ready(vdev))
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
return vdev->notify_copy.mtu;
|
|
|
|
}
|
|
|
|
|
|
|
|
u32 vnic_dev_link_down_cnt(struct vnic_dev *vdev)
|
|
|
|
{
|
|
|
|
if (!vnic_dev_notify_ready(vdev))
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
return vdev->notify_copy.link_down_cnt;
|
|
|
|
}
|
|
|
|
|
|
|
|
void vnic_dev_set_intr_mode(struct vnic_dev *vdev,
|
|
|
|
enum vnic_dev_intr_mode intr_mode)
|
|
|
|
{
|
|
|
|
vdev->intr_mode = intr_mode;
|
|
|
|
}
|
|
|
|
|
|
|
|
enum vnic_dev_intr_mode vnic_dev_get_intr_mode(
|
|
|
|
struct vnic_dev *vdev)
|
|
|
|
{
|
|
|
|
return vdev->intr_mode;
|
|
|
|
}
|
|
|
|
|
|
|
|
void vnic_dev_unregister(struct vnic_dev *vdev)
|
|
|
|
{
|
|
|
|
if (vdev) {
|
|
|
|
if (vdev->notify)
|
2018-10-10 16:40:56 +00:00
|
|
|
dma_free_coherent(&vdev->pdev->dev,
|
2009-04-18 01:33:26 +00:00
|
|
|
sizeof(struct vnic_devcmd_notify),
|
|
|
|
vdev->notify,
|
|
|
|
vdev->notify_pa);
|
|
|
|
if (vdev->linkstatus)
|
2018-10-10 16:40:56 +00:00
|
|
|
dma_free_coherent(&vdev->pdev->dev,
|
2009-04-18 01:33:26 +00:00
|
|
|
sizeof(u32),
|
|
|
|
vdev->linkstatus,
|
|
|
|
vdev->linkstatus_pa);
|
|
|
|
if (vdev->stats)
|
2018-10-10 16:40:56 +00:00
|
|
|
dma_free_coherent(&vdev->pdev->dev,
|
2011-01-29 00:03:36 +00:00
|
|
|
sizeof(struct vnic_stats),
|
2009-04-18 01:33:26 +00:00
|
|
|
vdev->stats, vdev->stats_pa);
|
|
|
|
if (vdev->fw_info)
|
2018-10-10 16:40:56 +00:00
|
|
|
dma_free_coherent(&vdev->pdev->dev,
|
2009-04-18 01:33:26 +00:00
|
|
|
sizeof(struct vnic_devcmd_fw_info),
|
|
|
|
vdev->fw_info, vdev->fw_info_pa);
|
2019-01-18 22:51:43 +00:00
|
|
|
if (vdev->devcmd2)
|
|
|
|
vnic_dev_deinit_devcmd2(vdev);
|
2009-04-18 01:33:26 +00:00
|
|
|
kfree(vdev);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
struct vnic_dev *vnic_dev_register(struct vnic_dev *vdev,
|
|
|
|
void *priv, struct pci_dev *pdev, struct vnic_dev_bar *bar)
|
|
|
|
{
|
|
|
|
if (!vdev) {
|
|
|
|
vdev = kzalloc(sizeof(struct vnic_dev), GFP_KERNEL);
|
|
|
|
if (!vdev)
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
vdev->priv = priv;
|
|
|
|
vdev->pdev = pdev;
|
|
|
|
|
|
|
|
if (vnic_dev_discover_res(vdev, bar))
|
|
|
|
goto err_out;
|
|
|
|
|
|
|
|
return vdev;
|
|
|
|
|
|
|
|
err_out:
|
|
|
|
vnic_dev_unregister(vdev);
|
|
|
|
return NULL;
|
|
|
|
}
|
2019-01-18 22:51:44 +00:00
|
|
|
|
|
|
|
int vnic_dev_cmd_init(struct vnic_dev *vdev)
|
|
|
|
{
|
|
|
|
int err;
|
|
|
|
void *p;
|
|
|
|
|
|
|
|
p = vnic_dev_get_res(vdev, RES_TYPE_DEVCMD2, 0);
|
|
|
|
if (p) {
|
|
|
|
pr_err("fnic: DEVCMD2 resource found!\n");
|
|
|
|
err = vnic_dev_init_devcmd2(vdev);
|
|
|
|
} else {
|
|
|
|
pr_err("fnic: DEVCMD2 not found, fall back to Devcmd\n");
|
|
|
|
err = vnic_dev_init_devcmd1(vdev);
|
|
|
|
}
|
|
|
|
|
|
|
|
return err;
|
|
|
|
}
|