Re: [dpdk-dev] [PATCH 1/3] i40e: explicit shared code naming as base driver

["Chen, Jing D" <jing.d.chen@intel.com>]

My bad. Please ignore " BTW, won't this patch overwrite previous one that fix GCC 32bits warning?"

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Chen, Jing D
> Sent: Wednesday, June 25, 2014 10:44 PM
> To: Thomas Monjalon; dev@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH 1/3] i40e: explicit shared code naming as
> base driver
> 
> Hi Thomas,
> 
> > -----Original Message-----
> > From: Thomas Monjalon [mailto:thomas.monjalon@6wind.com]
> > Sent: Wednesday, June 25, 2014 8:22 PM
> > To: dev@dpdk.org
> > Cc: Chen, Jing D; Zhang, Helin; Ananyev, Konstantin; De Lara Guarch,
> > Pablo
> > Subject: [PATCH 1/3] i40e: explicit shared code naming as base driver
> >
> > The PMD is built on top of the base driver which is provided by Intel
> > and shouldn't be modified to allow easy batch upgrade from Intel.
> >
> > The base driver is a "shared code" between many projects. But in DPDK,
> > the "base driver" naming makes more sense.
> >
> > Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
> > ---
> >  lib/librte_pmd_i40e/Makefile      | 33
> ++++++++++++++++-----------------
> >  lib/librte_pmd_i40e/i40e_ethdev.c | 12 ++++++------
> >  2 files changed, 22 insertions(+), 23 deletions(-)
> >
> > diff --git a/lib/librte_pmd_i40e/Makefile
> > b/lib/librte_pmd_i40e/Makefile index 09f2087..77d08fb 100644
> > --- a/lib/librte_pmd_i40e/Makefile
> > +++ b/lib/librte_pmd_i40e/Makefile
> > @@ -39,26 +39,25 @@ LIB = librte_pmd_i40e.a  CFLAGS += -O3
> CFLAGS
> > += $(WERROR_FLAGS)
> >
> > -ifeq ($(CC), icc)
> > -CFLAGS_SHARED_DRIVERS = -wd593
> > -else
> > -CFLAGS_SHARED_DRIVERS =  -Wno-unused-but-set-variable
> > -CFLAGS_SHARED_DRIVERS += -Wno-sign-compare
> -CFLAGS_SHARED_DRIVERS +=
> > -Wno-unused-value -CFLAGS_SHARED_DRIVERS +=
> -Wno-unused-parameter
> > -CFLAGS_SHARED_DRIVERS += -Wno-strict-aliasing
> -CFLAGS_SHARED_DRIVERS
> > += -Wno-format -CFLAGS_SHARED_DRIVERS +=
> > -Wno-missing-field-initializers -CFLAGS_SHARED_DRIVERS +=
> > -Wno-pointer-to-int-cast -CFLAGS_SHARED_DRIVERS +=
> > -Wno-format-nonliteral -CFLAGS_SHARED_DRIVERS +=
> -Wno-format-security
> > -endif
> > -
> >  #
> >  # Add extra flags for ND source files to disable warnings  #
> > -SHARED_DRIVERS_OBJS=$(patsubst %.c,%.o,$(notdir $(wildcard
> > $(RTE_SDK)/lib/librte_pmd_i40e/i40e/*.c)))
> > -$(foreach obj, $(SHARED_DRIVERS_OBJS), $(eval
> > CFLAGS_$(obj)+=$(CFLAGS_SHARED_DRIVERS)))
> > +ifeq ($(CC), icc)
> > +CFLAGS_BASE_DRIVER = -wd593
> > +else
> > +CFLAGS_BASE_DRIVER  = -Wno-unused-but-set-variable
> > CFLAGS_BASE_DRIVER
> > ++= -Wno-sign-compare CFLAGS_BASE_DRIVER += -Wno-unused-value
> > +CFLAGS_BASE_DRIVER += -Wno-unused-parameter
> CFLAGS_BASE_DRIVER =
> > +-Wno-strict-aliasing CFLAGS_BASE_DRIVER += -Wno-format
> > +CFLAGS_BASE_DRIVER += -Wno-missing-field-initializers
> > +CFLAGS_BASE_DRIVER += -Wno-pointer-to-int-cast
> CFLAGS_BASE_DRIVER =
> > +-Wno-format-nonliteral CFLAGS_BASE_DRIVER += -Wno-format-security
> > endif
> > +OBJS_BASE_DRIVER=$(patsubst %.c,%.o,$(notdir $(wildcard
> > +$(RTE_SDK)/lib/librte_pmd_i40e/i40e/*.c)))
> > +$(foreach obj, $(OBJS_BASE_DRIVER), $(eval
> > +CFLAGS_$(obj)+=$(CFLAGS_BASE_DRIVER)))
> >
> >  VPATH += $(RTE_SDK)/lib/librte_pmd_i40e/i40e
> >
> > diff --git a/lib/librte_pmd_i40e/i40e_ethdev.c
> > b/lib/librte_pmd_i40e/i40e_ethdev.c
> > index 3311d73..6bc3998 100644
> > --- a/lib/librte_pmd_i40e/i40e_ethdev.c
> > +++ b/lib/librte_pmd_i40e/i40e_ethdev.c
> > @@ -387,10 +387,10 @@ eth_i40e_dev_init(__rte_unused struct
> eth_driver
> > *eth_drv,
> >  		return ret;
> >  	}
> >
> > -	/* Initialize the shared code */
> > +	/* Initialize the shared code (base driver) */
> >  	ret = i40e_init_shared_code(hw);
> >  	if (ret) {
> > -		PMD_INIT_LOG(ERR, "Failed to init shared code: %d", ret);
> > +		PMD_INIT_LOG(ERR, "Failed to init shared code (base driver): %d",
> > +ret);
> >  		return ret;
> >  	}
> >
> > @@ -1497,7 +1497,7 @@ i40e_dev_rss_reta_query(struct rte_eth_dev
> *dev,
> > }
> >
> >  /**
> > - * i40e_allocate_dma_mem_d - specific memory alloc for shared code
> > + * i40e_allocate_dma_mem_d - specific memory alloc for shared code
> > + (base driver)
> >   * @hw:   pointer to the HW structure
> >   * @mem:  pointer to mem struct to fill out
> >   * @size: size of memory requested
> > @@ -1531,7 +1531,7 @@
> > i40e_allocate_dma_mem_d(__attribute__((unused)) struct i40e_hw
> *hw,  }
> >
> >  /**
> > - * i40e_free_dma_mem_d - specific memory free for shared code
> > + * i40e_free_dma_mem_d - specific memory free for shared code (base
> > + driver)
> >   * @hw:   pointer to the HW structure
> >   * @mem:  ptr to mem struct to free
> >   **/
> > @@ -1549,7 +1549,7 @@ i40e_free_dma_mem_d(__attribute__((unused))
> > struct i40e_hw *hw,  }
> >
> >  /**
> > - * i40e_allocate_virt_mem_d - specific memory alloc for shared code
> > + * i40e_allocate_virt_mem_d - specific memory alloc for shared code
> > + (base driver)
> >   * @hw:   pointer to the HW structure
> >   * @mem:  pointer to mem struct to fill out
> >   * @size: size of memory requested
> > @@ -1572,7 +1572,7 @@
> > i40e_allocate_virt_mem_d(__attribute__((unused)) struct i40e_hw *hw,
> > }
> >
> >  /**
> > - * i40e_free_virt_mem_d - specific memory free for shared code
> > + * i40e_free_virt_mem_d - specific memory free for shared code (base
> > + driver)
> >   * @hw:   pointer to the HW structure
> >   * @mem:  pointer to mem struct to free
> >   **/
> > --
> > 2.0.0
> 
> 
> I don't object the name change. But I don't see anything good. As some of
> the API indicates (i40e_init_shared_code), we can call it shared code as what
> we've done in old PMD drivers.
> BTW, won't this patch overwrite previous one that fix GCC 32bits warning?