git: e50c8885a492 - stable/12 - e1000: fix minor issues and improve code style

Kevin Bowling kbowling at FreeBSD.org
Fri Sep 24 01:41:34 UTC 2021


The branch stable/12 has been updated by kbowling (ports committer):

URL: https://cgit.FreeBSD.org/src/commit/?id=e50c8885a49294effa63f487108a94c4c1ba8160

commit e50c8885a49294effa63f487108a94c4c1ba8160
Author:     Guinan Sun <guinanx.sun at intel.com>
AuthorDate: 2020-07-06 08:12:03 +0000
Commit:     Kevin Bowling <kbowling at FreeBSD.org>
CommitDate: 2021-09-24 01:38:59 +0000

    e1000: fix minor issues and improve code style
    
    Fix typo in piece of code of NVM access for SPT.
    And cleans up the remaining instances in the shared code
    where it was not adhering to the Linux code standard.
    Wrong description was found in the mentioned file, so fix them.
    Remove shadowing variable declarations.
    
    Relating to operands in bitwise operations having different sizes.
    Unreachable code since *clock_in_i2c_* always return success.
    Don't return unused s32 and don't check for constants.
    
    Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher at intel.com>
    Signed-off-by: Sasha Neftin <sasha.neftin at intel.com>
    Signed-off-by: Vitaly Lifshits <vitaly.lifshits at intel.com>
    Signed-off-by: Robert Konklewski <robertx.konklewski at intel.com>
    Signed-off-by: Doug Dziggel <douglas.a.dziggel at intel.com>
    Signed-off-by: Todd Fujinaka <todd.fujinaka at intel.com>
    Signed-off-by: Jacob Keller <jacob.e.keller at intel.com>
    Signed-off-by: Guinan Sun <guinanx.sun at intel.com>
    Reviewed-by: Wei Zhao <wei.zhao1 at intel.com>
    
    Approved by:    imp
    Obtained from:  DPDK (b8592c89c8fbc871d22313dcac0b86c89a7d5a62)
    MFC after:      1 week
    
    (cherry picked from commit 6c59e1866ca7a48d84f1d298bb3e6a07d2e6f756)
---
 sys/dev/e1000/e1000_80003es2lan.c |  1 -
 sys/dev/e1000/e1000_82575.c       | 16 +++++-----------
 sys/dev/e1000/e1000_i210.c        |  8 +++-----
 sys/dev/e1000/e1000_ich8lan.c     | 40 ++++++++++++++++++++-------------------
 sys/dev/e1000/e1000_mac.c         |  2 +-
 sys/dev/e1000/e1000_nvm.c         |  2 +-
 sys/dev/e1000/e1000_phy.c         |  5 ++++-
 7 files changed, 35 insertions(+), 39 deletions(-)

diff --git a/sys/dev/e1000/e1000_80003es2lan.c b/sys/dev/e1000/e1000_80003es2lan.c
index 50fdfab54685..db6f1aeb65fb 100644
--- a/sys/dev/e1000/e1000_80003es2lan.c
+++ b/sys/dev/e1000/e1000_80003es2lan.c
@@ -1168,7 +1168,6 @@ static s32 e1000_setup_copper_link_80003es2lan(struct e1000_hw *hw)
 /**
  *  e1000_cfg_on_link_up_80003es2lan - es2 link configuration after link-up
  *  @hw: pointer to the HW structure
- *  @duplex: current duplex setting
  *
  *  Configure the KMRN interface by applying last minute quirks for
  *  10/100 operation.
diff --git a/sys/dev/e1000/e1000_82575.c b/sys/dev/e1000/e1000_82575.c
index 296a72542914..b252a4c7ff1d 100644
--- a/sys/dev/e1000/e1000_82575.c
+++ b/sys/dev/e1000/e1000_82575.c
@@ -104,10 +104,10 @@ static void e1000_clear_vfta_i350(struct e1000_hw *hw);
 
 static void e1000_i2c_start(struct e1000_hw *hw);
 static void e1000_i2c_stop(struct e1000_hw *hw);
-static s32 e1000_clock_in_i2c_byte(struct e1000_hw *hw, u8 *data);
+static void e1000_clock_in_i2c_byte(struct e1000_hw *hw, u8 *data);
 static s32 e1000_clock_out_i2c_byte(struct e1000_hw *hw, u8 data);
 static s32 e1000_get_i2c_ack(struct e1000_hw *hw);
-static s32 e1000_clock_in_i2c_bit(struct e1000_hw *hw, bool *data);
+static void e1000_clock_in_i2c_bit(struct e1000_hw *hw, bool *data);
 static s32 e1000_clock_out_i2c_bit(struct e1000_hw *hw, bool data);
 static void e1000_raise_i2c_clk(struct e1000_hw *hw, u32 *i2cctl);
 static void e1000_lower_i2c_clk(struct e1000_hw *hw, u32 *i2cctl);
@@ -3238,9 +3238,7 @@ s32 e1000_read_i2c_byte_generic(struct e1000_hw *hw, u8 byte_offset,
 		if (status != E1000_SUCCESS)
 			goto fail;
 
-		status = e1000_clock_in_i2c_byte(hw, data);
-		if (status != E1000_SUCCESS)
-			goto fail;
+		e1000_clock_in_i2c_byte(hw, data);
 
 		status = e1000_clock_out_i2c_bit(hw, nack);
 		if (status != E1000_SUCCESS)
@@ -3404,7 +3402,7 @@ static void e1000_i2c_stop(struct e1000_hw *hw)
  *
  *  Clocks in one byte data via I2C data/clock
  **/
-static s32 e1000_clock_in_i2c_byte(struct e1000_hw *hw, u8 *data)
+static void e1000_clock_in_i2c_byte(struct e1000_hw *hw, u8 *data)
 {
 	s32 i;
 	bool bit = 0;
@@ -3416,8 +3414,6 @@ static s32 e1000_clock_in_i2c_byte(struct e1000_hw *hw, u8 *data)
 		e1000_clock_in_i2c_bit(hw, &bit);
 		*data |= bit << i;
 	}
-
-	return E1000_SUCCESS;
 }
 
 /**
@@ -3506,7 +3502,7 @@ static s32 e1000_get_i2c_ack(struct e1000_hw *hw)
  *
  *  Clocks in one bit via I2C data/clock
  **/
-static s32 e1000_clock_in_i2c_bit(struct e1000_hw *hw, bool *data)
+static void e1000_clock_in_i2c_bit(struct e1000_hw *hw, bool *data)
 {
 	u32 i2cctl = E1000_READ_REG(hw, E1000_I2CPARAMS);
 
@@ -3524,8 +3520,6 @@ static s32 e1000_clock_in_i2c_bit(struct e1000_hw *hw, bool *data)
 
 	/* Minimum low period of clock is 4.7 us */
 	usec_delay(E1000_I2C_T_LOW);
-
-	return E1000_SUCCESS;
 }
 
 /**
diff --git a/sys/dev/e1000/e1000_i210.c b/sys/dev/e1000/e1000_i210.c
index c0055aa0df71..c6ca38f0f917 100644
--- a/sys/dev/e1000/e1000_i210.c
+++ b/sys/dev/e1000/e1000_i210.c
@@ -195,7 +195,7 @@ static s32 e1000_write_nvm_srwr(struct e1000_hw *hw, u16 offset, u16 words,
 	}
 
 	for (i = 0; i < words; i++) {
-		eewr = ((offset+i) << E1000_NVM_RW_ADDR_SHIFT) |
+		eewr = ((offset + i) << E1000_NVM_RW_ADDR_SHIFT) |
 			(data[i] << E1000_NVM_RW_REG_DATA) |
 			E1000_NVM_RW_REG_START;
 
@@ -281,9 +281,9 @@ static s32 e1000_read_invm_i210(struct e1000_hw *hw, u16 offset,
 	switch (offset) {
 	case NVM_MAC_ADDR:
 		ret_val = e1000_read_invm_word_i210(hw, (u8)offset, &data[0]);
-		ret_val |= e1000_read_invm_word_i210(hw, (u8)offset+1,
+		ret_val |= e1000_read_invm_word_i210(hw, (u8)offset + 1,
 						     &data[1]);
-		ret_val |= e1000_read_invm_word_i210(hw, (u8)offset+2,
+		ret_val |= e1000_read_invm_word_i210(hw, (u8)offset + 2,
 						     &data[2]);
 		if (ret_val != E1000_SUCCESS)
 			DEBUGOUT("MAC Addr not found in iNVM\n");
@@ -561,8 +561,6 @@ void e1000_init_function_pointers_i210(struct e1000_hw *hw)
 {
 	e1000_init_function_pointers_82575(hw);
 	hw->nvm.ops.init_params = e1000_init_nvm_params_i210;
-
-	return;
 }
 
 /**
diff --git a/sys/dev/e1000/e1000_ich8lan.c b/sys/dev/e1000/e1000_ich8lan.c
index bc5b57394708..4af7c73a0b0c 100644
--- a/sys/dev/e1000/e1000_ich8lan.c
+++ b/sys/dev/e1000/e1000_ich8lan.c
@@ -841,7 +841,7 @@ static s32 e1000_init_mac_params_ich8lan(struct e1000_hw *hw)
 /**
  *  __e1000_access_emi_reg_locked - Read/write EMI register
  *  @hw: pointer to the HW structure
- *  @addr: EMI address to program
+ *  @address: EMI address to program
  *  @data: pointer to value to read/write from/to the EMI address
  *  @read: boolean flag to indicate read or write
  *
@@ -1619,8 +1619,6 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
 
 
 		if (hw->mac.type >= e1000_pch_lpt) {
-			u16 phy_reg;
-
 			hw->phy.ops.read_reg_locked(hw, I217_PLL_CLOCK_GATE_REG,
 						    &phy_reg);
 			phy_reg &= ~I217_PLL_CLOCK_GATE_MASK;
@@ -2474,7 +2472,7 @@ release:
 /**
  *  e1000_configure_k1_ich8lan - Configure K1 power state
  *  @hw: pointer to the HW structure
- *  @enable: K1 state to configure
+ *  @k1_enable: K1 state to configure
  *
  *  Configure the K1 power state based on the provided parameter.
  *  Assumes semaphore already acquired.
@@ -2622,6 +2620,7 @@ static s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw)
 /**
  *  e1000_hv_phy_workarounds_ich8lan - A series of Phy workarounds to be
  *  done after every PHY reset.
+ *  @hw: pointer to the HW structure
  **/
 static s32 e1000_hv_phy_workarounds_ich8lan(struct e1000_hw *hw)
 {
@@ -2943,6 +2942,7 @@ s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable)
 /**
  *  e1000_lv_phy_workarounds_ich8lan - A series of Phy workarounds to be
  *  done after every PHY reset.
+ *  @hw: pointer to the HW structure
  **/
 static s32 e1000_lv_phy_workarounds_ich8lan(struct e1000_hw *hw)
 {
@@ -3550,8 +3550,9 @@ static s32 e1000_read_nvm_spt(struct e1000_hw *hw, u16 offset, u16 words,
 
 	for (i = 0; i < words; i += 2) {
 		if (words - i == 1) {
-			if (dev_spec->shadow_ram[offset+i].modified) {
-				data[i] = dev_spec->shadow_ram[offset+i].value;
+			if (dev_spec->shadow_ram[offset + i].modified) {
+				data[i] =
+				    dev_spec->shadow_ram[offset + i].value;
 			} else {
 				offset_to_read = act_offset + i -
 						 ((act_offset + i) % 2);
@@ -3568,8 +3569,8 @@ static s32 e1000_read_nvm_spt(struct e1000_hw *hw, u16 offset, u16 words,
 			}
 		} else {
 			offset_to_read = act_offset + i;
-			if (!(dev_spec->shadow_ram[offset+i].modified) ||
-			    !(dev_spec->shadow_ram[offset+i+1].modified)) {
+			if (!(dev_spec->shadow_ram[offset + i].modified) ||
+			    !(dev_spec->shadow_ram[offset + i + 1].modified)) {
 				ret_val =
 				   e1000_read_flash_dword_ich8lan(hw,
 								 offset_to_read,
@@ -3577,15 +3578,16 @@ static s32 e1000_read_nvm_spt(struct e1000_hw *hw, u16 offset, u16 words,
 				if (ret_val)
 					break;
 			}
-			if (dev_spec->shadow_ram[offset+i].modified)
-				data[i] = dev_spec->shadow_ram[offset+i].value;
+			if (dev_spec->shadow_ram[offset + i].modified)
+				data[i] =
+				    dev_spec->shadow_ram[offset + i].value;
 			else
-				data[i] = (u16) (dword & 0xFFFF);
-			if (dev_spec->shadow_ram[offset+i].modified)
-				data[i+1] =
-				   dev_spec->shadow_ram[offset+i+1].value;
+				data[i] = (u16)(dword & 0xFFFF);
+			if (dev_spec->shadow_ram[offset + i + 1].modified)
+				data[i + 1] =
+				   dev_spec->shadow_ram[offset + i + 1].value;
 			else
-				data[i+1] = (u16) (dword >> 16 & 0xFFFF);
+				data[i + 1] = (u16)(dword >> 16 & 0xFFFF);
 		}
 	}
 
@@ -3639,8 +3641,8 @@ static s32 e1000_read_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words,
 
 	ret_val = E1000_SUCCESS;
 	for (i = 0; i < words; i++) {
-		if (dev_spec->shadow_ram[offset+i].modified) {
-			data[i] = dev_spec->shadow_ram[offset+i].value;
+		if (dev_spec->shadow_ram[offset + i].modified) {
+			data[i] = dev_spec->shadow_ram[offset + i].value;
 		} else {
 			ret_val = e1000_read_flash_word_ich8lan(hw,
 								act_offset + i,
@@ -4045,8 +4047,8 @@ static s32 e1000_write_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words,
 	nvm->ops.acquire(hw);
 
 	for (i = 0; i < words; i++) {
-		dev_spec->shadow_ram[offset+i].modified = TRUE;
-		dev_spec->shadow_ram[offset+i].value = data[i];
+		dev_spec->shadow_ram[offset + i].modified = TRUE;
+		dev_spec->shadow_ram[offset + i].value = data[i];
 	}
 
 	nvm->ops.release(hw);
diff --git a/sys/dev/e1000/e1000_mac.c b/sys/dev/e1000/e1000_mac.c
index b9754293d454..f5b4ae0f5135 100644
--- a/sys/dev/e1000/e1000_mac.c
+++ b/sys/dev/e1000/e1000_mac.c
@@ -2362,7 +2362,7 @@ e1000_release_swfw_sync(struct e1000_hw *hw, u16 mask)
 		; /* Empty */
 
 	swfw_sync = E1000_READ_REG(hw, E1000_SW_FW_SYNC);
-	swfw_sync &= ~mask;
+	swfw_sync &= (u32)~mask;
 	E1000_WRITE_REG(hw, E1000_SW_FW_SYNC, swfw_sync);
 
 	e1000_put_hw_semaphore(hw);
diff --git a/sys/dev/e1000/e1000_nvm.c b/sys/dev/e1000/e1000_nvm.c
index 7bda1213dde4..95f00e4d681f 100644
--- a/sys/dev/e1000/e1000_nvm.c
+++ b/sys/dev/e1000/e1000_nvm.c
@@ -578,7 +578,7 @@ s32 e1000_read_nvm_eerd(struct e1000_hw *hw, u16 offset, u16 words, u16 *data)
 	}
 
 	for (i = 0; i < words; i++) {
-		eerd = ((offset+i) << E1000_NVM_RW_ADDR_SHIFT) +
+		eerd = ((offset + i) << E1000_NVM_RW_ADDR_SHIFT) +
 		       E1000_NVM_RW_REG_START;
 
 		E1000_WRITE_REG(hw, E1000_EERD, eerd);
diff --git a/sys/dev/e1000/e1000_phy.c b/sys/dev/e1000/e1000_phy.c
index d73e3a10ae13..d84b6120dd31 100644
--- a/sys/dev/e1000/e1000_phy.c
+++ b/sys/dev/e1000/e1000_phy.c
@@ -621,7 +621,7 @@ s32 e1000_write_sfp_data_byte(struct e1000_hw *hw, u16 offset, u8 data)
 				 * lane and update whole word
 				 */
 				data_local = i2ccmd & 0xFF00;
-				data_local |= data;
+				data_local |= (u32)data;
 				i2ccmd = ((offset <<
 					E1000_I2CCMD_REG_ADDR_SHIFT) |
 					E1000_I2CCMD_OPCODE_WRITE | data_local);
@@ -3094,6 +3094,7 @@ s32 e1000_determine_phy_address(struct e1000_hw *hw)
 /**
  *  e1000_get_phy_addr_for_bm_page - Retrieve PHY page address
  *  @page: page to access
+ *  @reg: register to access
  *
  *  Returns the phy address for the page requested.
  **/
@@ -3531,6 +3532,7 @@ void e1000_power_down_phy_copper(struct e1000_hw *hw)
  *  @offset: register offset to be read
  *  @data: pointer to the read data
  *  @locked: semaphore has already been acquired or not
+ *  @page_set: BM_WUC_PAGE already set and access enabled
  *
  *  Acquires semaphore, if necessary, then reads the PHY register at offset
  *  and stores the retrieved information in data.  Release any acquired
@@ -3641,6 +3643,7 @@ s32 e1000_read_phy_reg_page_hv(struct e1000_hw *hw, u32 offset, u16 *data)
  *  @offset: register offset to write to
  *  @data: data to write at register offset
  *  @locked: semaphore has already been acquired or not
+ *  @page_set: BM_WUC_PAGE already set and access enabled
  *
  *  Acquires semaphore, if necessary, then writes the data to PHY register
  *  at the offset.  Release any acquired semaphores before exiting.


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