Date: Fri, 25 Aug 2017 22:38:56 +0000 (UTC) From: Sean Bruno <sbruno@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r322906 - head/sys/dev/e1000 Message-ID: <201708252238.v7PMcujp012682@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: sbruno Date: Fri Aug 25 22:38:55 2017 New Revision: 322906 URL: https://svnweb.freebsd.org/changeset/base/322906 Log: Add a different #define for the maximum number of transmit and recieve descriptors for the igb(4) class of devices. This will allow a better definition for maximum going forward. Some igb(4) devices support more than the default 4K. Reported by: Jason (j@nitrology.com) Sponsored by: Limelight Networks Modified: head/sys/dev/e1000/if_em.c head/sys/dev/e1000/if_em.h Modified: head/sys/dev/e1000/if_em.c ============================================================================== --- head/sys/dev/e1000/if_em.c Fri Aug 25 21:53:51 2017 (r322905) +++ head/sys/dev/e1000/if_em.c Fri Aug 25 22:38:55 2017 (r322906) @@ -515,8 +515,8 @@ static struct if_shared_ctx igb_sctx_init = { .isc_nrxd_min = {EM_MIN_RXD}, .isc_ntxd_min = {EM_MIN_TXD}, - .isc_nrxd_max = {EM_MAX_RXD}, - .isc_ntxd_max = {EM_MAX_TXD}, + .isc_nrxd_max = {IGB_MAX_RXD}, + .isc_ntxd_max = {IGB_MAX_TXD}, .isc_nrxd_default = {EM_DEFAULT_RXD}, .isc_ntxd_default = {EM_DEFAULT_TXD}, }; Modified: head/sys/dev/e1000/if_em.h ============================================================================== --- head/sys/dev/e1000/if_em.h Fri Aug 25 21:53:51 2017 (r322905) +++ head/sys/dev/e1000/if_em.h Fri Aug 25 22:38:55 2017 (r322906) @@ -96,10 +96,10 @@ /* Tunables */ /* - * EM_TXD: Maximum number of Transmit Descriptors + * EM_MAX_TXD: Maximum number of Transmit Descriptors * Valid Range: 80-256 for 82542 and 82543-based adapters * 80-4096 for others - * Default Value: 256 + * Default Value: 1024 * This value is the number of transmit descriptors allocated by the driver. * Increasing this value allows the driver to queue more transmits. Each * descriptor is 16 bytes. @@ -111,12 +111,13 @@ #define EM_MAX_TXD 4096 #define EM_DEFAULT_TXD 1024 #define EM_DEFAULT_MULTI_TXD 4096 +#define IGB_MAX_TXD 4096 /* - * EM_RXD - Maximum number of receive Descriptors + * EM_MAX_RXD - Maximum number of receive Descriptors * Valid Range: 80-256 for 82542 and 82543-based adapters * 80-4096 for others - * Default Value: 256 + * Default Value: 1024 * This value is the number of receive descriptors allocated by the driver. * Increasing this value allows the driver to buffer more incoming packets. * Each descriptor is 16 bytes. A receive buffer is also allocated for each @@ -129,6 +130,7 @@ #define EM_MAX_RXD 4096 #define EM_DEFAULT_RXD 1024 #define EM_DEFAULT_MULTI_RXD 4096 +#define IGB_MAX_RXD 4096 /* * EM_TIDV - Transmit Interrupt Delay Value
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201708252238.v7PMcujp012682>