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Date: Tue, 11 Sep 2012 08:01:06 +0200
From: Francois Romieu <romieu@...zoreil.com>
To: Sony Chacko <sony.chacko@...gic.com>
Cc: davem@...emloft.net, netdev@...r.kernel.org,
Dept_NX_Linux_NIC_Driver@...gic.com,
Anirban Chakraborty <anirban.chakraborty@...gic.com>
Subject: Re: [PATCH 01/12] qlcnic: Refactoring - template based hardware interface
Sony Chacko <sony.chacko@...gic.com> :
> Modify 82xx driver to support new adapter - Qlogic 83XX CNA
> Separate adapter specific hardware accesses routines
> Create template based hardware interface
>
> Signed-off-by: Anirban Chakraborty <anirban.chakraborty@...gic.com>
> Signed-off-by: Sony Chacko <sony.chacko@...gic.com>
> ---
> drivers/net/ethernet/qlogic/qlcnic/qlcnic.h | 67 ++++-
> drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c | 4 +-
> .../net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c | 32 ++-
> drivers/net/ethernet/qlogic/qlcnic/qlcnic_hdr.h | 55 +---
> drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c | 125 ++++++--
> drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h | 36 +++
> drivers/net/ethernet/qlogic/qlcnic/qlcnic_init.c | 1 +
> drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c | 309 +++++++++-----------
> 8 files changed, 359 insertions(+), 270 deletions(-)
> create mode 100644 drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
>
> diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
> index eaa1db9..a4ae965 100644
> --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
> +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
> @@ -439,6 +439,8 @@ struct qlcnic_fw_dump {
> struct qlcnic_dump_template_hdr *tmpl_hdr;
> };
>
> +struct qlcnic_hardware_ops;
> +
qlcnic_hardware_ops is defined in this same file and it only uses
pointers to yet unknown types. You can define it here.
[...]
> @@ -552,8 +556,9 @@ struct qlcnic_recv_context {
> /* HW context creation */
>
> #define QLCNIC_OS_CRB_RETRY_COUNT 4000
> -#define QLCNIC_CDRP_SIGNATURE_MAKE(pcifn, version) \
> - (((pcifn) & 0xff) | (((version) & 0xff) << 8) | (0xcafe << 16))
> +#define QLCNIC_CDRP_SIGNATURE_MAKE(ahw) \
> + (((ahw->pci_func) & 0xff) | (((ahw->fw_hal_version) & \
> + 0xff) << 8) | (0xcafe << 16))
It could be a proper function and it could belong to the (only) file where
it is actually used (once).
[...]
> +static inline void
> +qlcnic_read_crb(struct qlcnic_adapter *adapter, char *buf,
> + loff_t offset, size_t size)
?
static inline void qlcnic_read_crb(struct qlcnic_adapter *adapter, char *buf,
loff_t offset, size_t size)
[...]
> diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
> index 9e9e78a..c81fcf8 100644
> --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
> +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
[...]
> @@ -603,8 +608,7 @@ qlcnic_set_pauseparam(struct net_device *netdev,
> else
> qlcnic_gb_unset_rx_flowctl(val);
>
> - QLCWR32(adapter, QLCNIC_NIU_GB_MAC_CONFIG_0(port),
> - val);
> + QLCWR32(adapter, QLCNIC_NIU_GB_MAC_CONFIG_0(port), val);
This change does not fit the patch description.
[...]
> diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hdr.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hdr.h
> index 28a6b28..0bee9f7 100644
> --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hdr.h
> +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hdr.h
[...]
Most of the changes in this file does not fit the patch description.
You could as well make a separate patch dedicated to removing unused stuff.
5...]
> diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
> index b528e52..ee4cd43 100644
> --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
> +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
[...]
> @@ -880,7 +889,7 @@ qlcnic_pci_get_crb_addr_2M(struct qlcnic_adapter *adapter,
> m = &crb_128M_2M_map[CRB_BLK(off)].sub_block[CRB_SUBBLK(off)];
>
> if (m->valid && (m->start_128M <= off) && (m->end_128M > off)) {
> - *addr = adapter->ahw->pci_base0 + m->start_2M +
> + *addr = ahw->pci_base0 + m->start_2M +
> (off - m->start_128M);
*addr = ahw->pci_base0 + m->start_2M + off - m->start_128M;
[...]
> @@ -1105,7 +1116,7 @@ correct:
> i = 0;
> writel(TA_CTL_ENABLE, (mem_crb + TEST_AGT_CTRL));
> writel((TA_CTL_START | TA_CTL_ENABLE),
> - (mem_crb + TEST_AGT_CTRL));
> + (mem_crb + TEST_AGT_CTRL));
writel(TA_CTL_START | TA_CTL_ENABLE, mem_crb + TEST_AGT_CTRL);
The topic of the patch does not ask for a change here and these lines
don't even appear in the context diff of such changes. It could be
isolated in a separate patch (where you would probably be suggested to
remove the useless parenthesis in "(TA_CTL_START | TA_CTL_ENABLE)" as well).
[...]
> @@ -1786,3 +1800,54 @@ error:
> vfree(fw_dump->data);
> return -EINVAL;
> }
> +
> +void qlcnic_get_func_no(struct qlcnic_adapter *adapter)
> +{
> + void __iomem *msix_base_addr;
> + u32 func;
> + u32 msix_base;
> +
> + pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
> + msix_base_addr = adapter->ahw->pci_base0 + QLCNIC_MSIX_BASE;
> + msix_base = readl(msix_base_addr);
> + func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE;
> + adapter->ahw->pci_func = func;
> +}
It is not used in this patch. #2 adds a declaration for it in qlcnic.h, a
function pointer for it in qlcnic_hardware_ops, then uses it. #5 renames
it to qlcnic_82xx_get_func_no.
Reviewers won't complain if you keep the patchset at the smallest size
for a given set of changes, especially as the qlcnic_82xx_ prefix is
used a few lines below.
> +
> +void qlcnic_get_ocm_win(struct qlcnic_hardware_context *ahw)
> +{
> + u32 addr;
> +
> + addr = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
> + ahw->ocm_win_crb = qlcnic_get_ioaddr(ahw, addr);
> +}
Either it's hidden behind some clever macro or it isn't used at all in
the whole patchset.
> +
> +void qlcnic_82xx_read_crb(struct qlcnic_adapter *adapter, char *buf,
> + loff_t offset, size_t size)
> +{
> + u32 data;
> + u64 qmdata;
> +
> + if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
> + qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
> + memcpy(buf, &qmdata, size);
> + } else {
> + data = QLCRD32(adapter, offset);
> + memcpy(buf, &data, size);
> + }
> +}
Nit: reduce the scope of data and qmdata.
[...]
> diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
> new file mode 100644
> index 0000000..7dab9e2
> --- /dev/null
> +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
> @@ -0,0 +1,36 @@
> +#ifndef __QLCNIC_HW_H
> +#define __QLCNIC_HW_H
> +
> +#include "qlcnic.h"
> +
> +/* List of PCI device IDs */
> +#define PCI_DEVICE_ID_QLOGIC_QLE824X 0x8020
> +#define QLCNIC_P3P_BAR0_LENGTH 0x00200000UL
> +
> +#define QLCNIC_BAR_LENGTH(dev_id, bar) \
> +do { \
> + if (dev_id == PCI_DEVICE_ID_QLOGIC_QLE824X)\
> + *bar = QLCNIC_P3P_BAR0_LENGTH; \
> + else \
> + *bar = 0; \
> +} while (0)
It is used only once in the whole patchset.
> diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_init.c
> index 0bcda9c..350bf79 100644
> --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_init.c
> +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_init.c
[...]
> @@ -343,9 +312,9 @@ static const struct net_device_ops qlcnic_netdev_failed_ops = {
> };
>
> static struct qlcnic_nic_template qlcnic_ops = {
> - .config_bridged_mode = qlcnic_config_bridged_mode,
> - .config_led = qlcnic_config_led,
> - .start_firmware = qlcnic_start_firmware
> + .config_bridged_mode = qlcnic_82xx_config_bridged_mode,
> + .config_led = qlcnic_82xx_config_led,
> + .start_firmware = qlcnic_82xx_start_firmware
> };
You should really consider aligning as:
static struct qlcnic_nic_template qlcnic_ops = {
.config_bridged_mode = qlcnic_82xx_config_bridged_mode,
.config_led = qlcnic_82xx_config_led,
.start_firmware = qlcnic_82xx_start_firmware
};
(off to work)
--
Ueimor
--
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