From: Vasyl Gomonovych <gomonovych@gmail.com>
To: intel-wired-lan@osuosl.org
Subject: [Intel-wired-lan] [PATCH] igb: index regs_buff array via index variable
Date: Thu, 12 Dec 2019 11:58:47 +0100 [thread overview]
Message-ID: <20191212105847.16488-1-gomonovych@gmail.com> (raw)
This patch is just a preparation for additional register dump in regs_buff.
To make new register insertion in the middle of regs_buff array easier
change array indexing to use local counter reg_ix.
---
Basically this path is just a subject to ask
How to add a new register to dump from dataseet
Because it is logically better to add an additional register
in the middle of an array but that will break ABI.
To not have the ABI problem we should just add it at the
end of the array and increase the array size.
---
Signed-off-by: Vasyl Gomonovych <gomonovych@gmail.com>
---
drivers/net/ethernet/intel/igb/igb_ethtool.c | 110 ++++++++++---------
1 file changed, 57 insertions(+), 53 deletions(-)
diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index 3182b059bf55..4531f7ea9d99 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -459,6 +459,7 @@ static void igb_get_regs(struct net_device *netdev,
struct e1000_hw *hw = &adapter->hw;
u32 *regs_buff = p;
u8 i;
+ int reg_ix = 0;
memset(p, 0, IGB_REGS_LEN * sizeof(u32));
@@ -603,116 +604,119 @@ static void igb_get_regs(struct net_device *netdev,
regs_buff[119] = adapter->stats.scvpc;
regs_buff[120] = adapter->stats.hrmpc;
+ reg_ix = 121;
for (i = 0; i < 4; i++)
- regs_buff[121 + i] = rd32(E1000_SRRCTL(i));
+ regs_buff[reg_ix++] = rd32(E1000_SRRCTL(i));
for (i = 0; i < 4; i++)
- regs_buff[125 + i] = rd32(E1000_PSRTYPE(i));
+ regs_buff[reg_ix++] = rd32(E1000_PSRTYPE(i));
for (i = 0; i < 4; i++)
- regs_buff[129 + i] = rd32(E1000_RDBAL(i));
+ regs_buff[reg_ix++] = rd32(E1000_RDBAL(i));
for (i = 0; i < 4; i++)
- regs_buff[133 + i] = rd32(E1000_RDBAH(i));
+ regs_buff[reg_ix++] = rd32(E1000_RDBAH(i));
for (i = 0; i < 4; i++)
- regs_buff[137 + i] = rd32(E1000_RDLEN(i));
+ regs_buff[reg_ix++] = rd32(E1000_RDLEN(i));
for (i = 0; i < 4; i++)
- regs_buff[141 + i] = rd32(E1000_RDH(i));
+ regs_buff[reg_ix++] = rd32(E1000_RDH(i));
for (i = 0; i < 4; i++)
- regs_buff[145 + i] = rd32(E1000_RDT(i));
+ regs_buff[reg_ix++] = rd32(E1000_RDT(i));
for (i = 0; i < 4; i++)
- regs_buff[149 + i] = rd32(E1000_RXDCTL(i));
+ regs_buff[reg_ix++] = rd32(E1000_RXDCTL(i));
for (i = 0; i < 10; i++)
- regs_buff[153 + i] = rd32(E1000_EITR(i));
+ regs_buff[reg_ix++] = rd32(E1000_EITR(i));
for (i = 0; i < 8; i++)
- regs_buff[163 + i] = rd32(E1000_IMIR(i));
+ regs_buff[reg_ix++] = rd32(E1000_IMIR(i));
for (i = 0; i < 8; i++)
- regs_buff[171 + i] = rd32(E1000_IMIREXT(i));
+ regs_buff[reg_ix++] = rd32(E1000_IMIREXT(i));
for (i = 0; i < 16; i++)
- regs_buff[179 + i] = rd32(E1000_RAL(i));
+ regs_buff[reg_ix++] = rd32(E1000_RAL(i));
for (i = 0; i < 16; i++)
- regs_buff[195 + i] = rd32(E1000_RAH(i));
+ regs_buff[reg_ix++] = rd32(E1000_RAH(i));
for (i = 0; i < 4; i++)
- regs_buff[211 + i] = rd32(E1000_TDBAL(i));
+ regs_buff[reg_ix++] = rd32(E1000_TDBAL(i));
for (i = 0; i < 4; i++)
- regs_buff[215 + i] = rd32(E1000_TDBAH(i));
+ regs_buff[reg_ix++] = rd32(E1000_TDBAH(i));
for (i = 0; i < 4; i++)
- regs_buff[219 + i] = rd32(E1000_TDLEN(i));
+ regs_buff[reg_ix++] = rd32(E1000_TDLEN(i));
for (i = 0; i < 4; i++)
- regs_buff[223 + i] = rd32(E1000_TDH(i));
+ regs_buff[reg_ix++] = rd32(E1000_TDH(i));
for (i = 0; i < 4; i++)
- regs_buff[227 + i] = rd32(E1000_TDT(i));
+ regs_buff[reg_ix++] = rd32(E1000_TDT(i));
for (i = 0; i < 4; i++)
- regs_buff[231 + i] = rd32(E1000_TXDCTL(i));
+ regs_buff[reg_ix++] = rd32(E1000_TXDCTL(i));
for (i = 0; i < 4; i++)
- regs_buff[235 + i] = rd32(E1000_TDWBAL(i));
+ regs_buff[reg_ix++] = rd32(E1000_TDWBAL(i));
for (i = 0; i < 4; i++)
- regs_buff[239 + i] = rd32(E1000_TDWBAH(i));
+ regs_buff[reg_ix++] = rd32(E1000_TDWBAH(i));
for (i = 0; i < 4; i++)
- regs_buff[243 + i] = rd32(E1000_DCA_TXCTRL(i));
+ regs_buff[reg_ix++] = rd32(E1000_DCA_TXCTRL(i));
for (i = 0; i < 4; i++)
- regs_buff[247 + i] = rd32(E1000_IP4AT_REG(i));
+ regs_buff[reg_ix++] = rd32(E1000_IP4AT_REG(i));
for (i = 0; i < 4; i++)
- regs_buff[251 + i] = rd32(E1000_IP6AT_REG(i));
+ regs_buff[reg_ix++] = rd32(E1000_IP6AT_REG(i));
for (i = 0; i < 32; i++)
- regs_buff[255 + i] = rd32(E1000_WUPM_REG(i));
+ regs_buff[reg_ix++] = rd32(E1000_WUPM_REG(i));
for (i = 0; i < 128; i++)
- regs_buff[287 + i] = rd32(E1000_FFMT_REG(i));
+ regs_buff[reg_ix++] = rd32(E1000_FFMT_REG(i));
for (i = 0; i < 128; i++)
- regs_buff[415 + i] = rd32(E1000_FFVT_REG(i));
+ regs_buff[reg_ix++] = rd32(E1000_FFVT_REG(i));
for (i = 0; i < 4; i++)
- regs_buff[543 + i] = rd32(E1000_FFLT_REG(i));
+ regs_buff[reg_ix++] = rd32(E1000_FFLT_REG(i));
- regs_buff[547] = rd32(E1000_TDFH);
- regs_buff[548] = rd32(E1000_TDFT);
- regs_buff[549] = rd32(E1000_TDFHS);
- regs_buff[550] = rd32(E1000_TDFPC);
+ regs_buff[reg_ix++] = rd32(E1000_TDFH);
+ regs_buff[reg_ix++] = rd32(E1000_TDFT);
+ regs_buff[reg_ix++] = rd32(E1000_TDFHS);
+ regs_buff[reg_ix++] = rd32(E1000_TDFPC);
if (hw->mac.type > e1000_82580) {
- regs_buff[551] = adapter->stats.o2bgptc;
- regs_buff[552] = adapter->stats.b2ospc;
- regs_buff[553] = adapter->stats.o2bspc;
- regs_buff[554] = adapter->stats.b2ogprc;
+ regs_buff[reg_ix++] = adapter->stats.o2bgptc;
+ regs_buff[reg_ix++] = adapter->stats.b2ospc;
+ regs_buff[reg_ix++] = adapter->stats.o2bspc;
+ regs_buff[reg_ix++] = adapter->stats.b2ogprc;
}
+ reg_ix = 555;
if (hw->mac.type == e1000_82576) {
for (i = 0; i < 12; i++)
- regs_buff[555 + i] = rd32(E1000_SRRCTL(i + 4));
+ regs_buff[reg_ix++] = rd32(E1000_SRRCTL(i + 4));
for (i = 0; i < 4; i++)
- regs_buff[567 + i] = rd32(E1000_PSRTYPE(i + 4));
+ regs_buff[reg_ix++] = rd32(E1000_PSRTYPE(i + 4));
for (i = 0; i < 12; i++)
- regs_buff[571 + i] = rd32(E1000_RDBAL(i + 4));
+ regs_buff[reg_ix++] = rd32(E1000_RDBAL(i + 4));
for (i = 0; i < 12; i++)
- regs_buff[583 + i] = rd32(E1000_RDBAH(i + 4));
+ regs_buff[reg_ix++] = rd32(E1000_RDBAH(i + 4));
for (i = 0; i < 12; i++)
- regs_buff[595 + i] = rd32(E1000_RDLEN(i + 4));
+ regs_buff[reg_ix++] = rd32(E1000_RDLEN(i + 4));
for (i = 0; i < 12; i++)
- regs_buff[607 + i] = rd32(E1000_RDH(i + 4));
+ regs_buff[reg_ix++] = rd32(E1000_RDH(i + 4));
for (i = 0; i < 12; i++)
- regs_buff[619 + i] = rd32(E1000_RDT(i + 4));
+ regs_buff[reg_ix++] = rd32(E1000_RDT(i + 4));
for (i = 0; i < 12; i++)
- regs_buff[631 + i] = rd32(E1000_RXDCTL(i + 4));
+ regs_buff[reg_ix++] = rd32(E1000_RXDCTL(i + 4));
for (i = 0; i < 12; i++)
- regs_buff[643 + i] = rd32(E1000_TDBAL(i + 4));
+ regs_buff[reg_ix++] = rd32(E1000_TDBAL(i + 4));
for (i = 0; i < 12; i++)
- regs_buff[655 + i] = rd32(E1000_TDBAH(i + 4));
+ regs_buff[reg_ix++] = rd32(E1000_TDBAH(i + 4));
for (i = 0; i < 12; i++)
- regs_buff[667 + i] = rd32(E1000_TDLEN(i + 4));
+ regs_buff[reg_ix++] = rd32(E1000_TDLEN(i + 4));
for (i = 0; i < 12; i++)
- regs_buff[679 + i] = rd32(E1000_TDH(i + 4));
+ regs_buff[reg_ix++] = rd32(E1000_TDH(i + 4));
for (i = 0; i < 12; i++)
- regs_buff[691 + i] = rd32(E1000_TDT(i + 4));
+ regs_buff[reg_ix++] = rd32(E1000_TDT(i + 4));
for (i = 0; i < 12; i++)
- regs_buff[703 + i] = rd32(E1000_TXDCTL(i + 4));
+ regs_buff[reg_ix++] = rd32(E1000_TXDCTL(i + 4));
for (i = 0; i < 12; i++)
- regs_buff[715 + i] = rd32(E1000_TDWBAL(i + 4));
+ regs_buff[reg_ix++] = rd32(E1000_TDWBAL(i + 4));
for (i = 0; i < 12; i++)
- regs_buff[727 + i] = rd32(E1000_TDWBAH(i + 4));
+ regs_buff[reg_ix++] = rd32(E1000_TDWBAH(i + 4));
}
+ reg_ix = 739;
if (hw->mac.type == e1000_i210 || hw->mac.type == e1000_i211)
- regs_buff[739] = rd32(E1000_I210_RR2DCDELAY);
+ regs_buff[reg_ix] = rd32(E1000_I210_RR2DCDELAY);
}
static int igb_get_eeprom_len(struct net_device *netdev)
--
2.17.1
next reply other threads:[~2019-12-12 10:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-12 10:58 Vasyl Gomonovych [this message]
2019-12-12 18:49 ` [Intel-wired-lan] [PATCH] igb: index regs_buff array via index variable David Miller
2019-12-13 0:48 ` Alexander Duyck
2019-12-13 11:25 ` Gomonovych, Vasyl
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20191212105847.16488-1-gomonovych@gmail.com \
--to=gomonovych@gmail.com \
--cc=intel-wired-lan@osuosl.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox